MailMan DataFlex Reference Documentation

MailMan

Current Version: 9.5.0.73

The Chilkat MailMan class is reponsible for sending email though SMTP and receiving/managing email on POP3 servers.

Object Creation

// (Dataflex programs use the 32-bit Chilkat ActiveX)
Handle hoMailMan
Get Create(RefClass(cComChilkatMailMan)) to hoMailMan

Properties

AbortCurrent
Function ComAbortCurrent Returns Boolean
Procedure Set ComAbortCurrent Boolean value
Introduced in version 9.5.0.58

When set to True, causes the currently running method to abort. Methods that always finish quickly (i.e.have no length file operations or network communications) are not affected. If no method is running, then this property is automatically reset to False when the next method is called. When the abort occurs, this property is reset to False. Both synchronous and asynchronous method calls can be aborted. (A synchronous method call could be aborted by setting this property from a separate thread.)

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AllOrNone
Function ComAllOrNone Returns Boolean
Procedure Set ComAllOrNone Boolean value

Prevents sending any email if any of the addresses in the recipient list are rejected by the SMTP server. The default value is False, which indicates that the mail sending should continue even if some email addresses are invalid. (Note: Not all SMTP servers check the validity of email addresses, and even for those that do, it is not 100% accurate.)

Note: An SMTP server only knows the validity of email addresses within the domain it controls.

Important: The AllOrNone property only works if SMTP pipelining is turned off. By default, the SmtpPipelining property is turned on and has the value of True. If all-or-none behavior is desired, make sure to set SmtpPipelining equal to False.

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AutoFix
Function ComAutoFix Returns Boolean
Procedure Set ComAutoFix Boolean value

If True, then the following will occur when a connection is made to an SMTP or POP3 server:

1) If the SmtpPort property = 465, then sets StartTLS = False and SmtpSsl = True
2) If the SmtpPort property = 25, sets SmtpSsl = False
3) If the MailPort property = 995, sets PopSsl = True
4) If the MailPort property = 110, sets PopSsl = False

The default value of this property is True.

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AutoGenMessageId
Function ComAutoGenMessageId Returns Boolean
Procedure Set ComAutoGenMessageId Boolean value

Controls whether a unique Message-ID header is auto-generated for each email sent.

The Message-ID header field should contain a unique message ID for each email that is sent. The default behavior is to auto-generate this header field at the time the message is sent. This makes it easier for the same email object to be re-used. If the message ID is not unique, the SMTP server may consider the message to be a duplicate of one that has already been sent, and may discard it without sending. This property controls whether message IDs are automatically generated. If auto-generation is turned on (True), the value returned by GetHeaderField("Message-ID") will not reflect the actual message ID that gets sent with the email.

To turn off automatic Message-ID generation, set this property to False.

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AutoSmtpRset
Function ComAutoSmtpRset Returns Boolean
Procedure Set ComAutoSmtpRset Boolean value

If True, then the SMTP "RSET" command is automatically sent to ensure that the SMTP connection is in a valid state when a new email is about to be sent on an already established connection. The default value is False.

Important: This property only applies when an email is sent on an already-open SMTP connection.

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AutoUnwrapSecurity
Function ComAutoUnwrapSecurity Returns Boolean
Procedure Set ComAutoUnwrapSecurity Boolean value
Introduced in version 9.5.0.49

If True, then digitally signed and/or encrypted email when downloaded from a mail server is automatically "unwrapped" and the results of the signature validation and decryption are available in various email object properties and methods. The default value of this property is True. Set this property to False to prevent unwrapping.

Note: A digitally signed or encrypted email can ONLY be verified and/or decrypted when initially loading the original MIME into the email object (i.e. when downloading from the server, or when loading from MIME). Once the MIME is parsed and stored in the internal email object format, the exactnes of the MIME has been lost and the signature can no longer be verified. This is why the signature is verified upon the intial loading of the MIME, and the results are made available through the various properties and methods. This property provides a means for downloading email where the .p7m (or .p7s) attachments are are to be treated as simple attachments and the desire is to access or save the original .p7m/.p7s files.

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ClientIpAddress
Function ComClientIpAddress Returns String
Procedure Set ComClientIpAddress String value

The IP address to use for computers with multiple network interfaces or IP addresses. For computers with a single network interface (i.e. most computers), this property should not be set. For multihoming computers, the default IP address is automatically used if this property is not set.

The IP address is a string such as in dotted notation using numbers, not domain names, such as "165.164.55.124".

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ConnectFailReason
Function ComConnectFailReason Returns Integer
Introduced in version 9.5.0.56

This property will be set to the status of the last connection made (or failed to be made) by any method.

Possible values are:

0 = success

Normal (non-TLS) sockets:
1 = empty hostname
2 = DNS lookup failed
3 = DNS timeout
4 = Aborted by application.
5 = Internal failure.
6 = Connect Timed Out
7 = Connect Rejected (or failed for some other reason)

SSL/TLS:
100 = TLS internal error.
101 = Failed to send client hello.
102 = Unexpected handshake message.
103 = Failed to read server hello.
104 = No server certificate.
105 = Unexpected TLS protocol version.
106 = Server certificate verify failed (the server certificate is expired or the cert's signature verification failed).
107 = Unacceptable TLS protocol version.
109 = Failed to read handshake messages.
110 = Failed to send client certificate handshake message.
111 = Failed to send client key exchange handshake message.
112 = Client certificate's private key not accessible.
113 = Failed to send client cert verify handshake message.
114 = Failed to send change cipher spec handshake message.
115 = Failed to send finished handshake message.
116 = Server's Finished message is invalid.

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ConnectTimeout
Function ComConnectTimeout Returns Integer
Procedure Set ComConnectTimeout Integer value

The time (in seconds) to wait before while trying to connect to a mail server (POP3 or SMTP). The default value is 30.

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DebugLogFilePath
Function ComDebugLogFilePath Returns String
Procedure Set ComDebugLogFilePath String value

If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

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DsnEnvid
Function ComDsnEnvid Returns String
Procedure Set ComDsnEnvid String value

(An SMTP DSN service extension feature) An arbitrary string that will be used as the ENVID property when sending email. See RFC 3461 for more details.

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DsnNotify
Function ComDsnNotify Returns String
Procedure Set ComDsnNotify String value

(An SMTP DSN service extension feature) A string that will be used as the NOTIFY parameter when sending email. (See RFC 3461 for more details. ) This string can be left blank, or can be set to "NEVER", or any combination of a comma-separated list of "SUCCESS", "FAILURE", or "NOTIFY".

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DsnRet
Function ComDsnRet Returns String
Procedure Set ComDsnRet String value

(An SMTP DSN service extension feature) A string that will be used as the RET parameter when sending email. (See RFC 3461 for more details. ) This string can be left blank, or can be set to "FULL" to receive entire-message DSN notifications, or "HDRS" to receive header-only DSN notifications.

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EmbedCertChain
Function ComEmbedCertChain Returns Boolean
Procedure Set ComEmbedCertChain Boolean value

If True, causes the digital certificate chain to be embedded in signed emails. The certificates in the chain of authentication are embedded up to but not including the root certificate. If the IncludeRootCert property is also True, then the root CA certificate is also included in the S/MIME signature.

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Filter
Function ComFilter Returns String
Procedure Set ComFilter String value

An expression that is applied to any of the following method calls when present: LoadXmlFile, LoadXmlString, LoadMbx, CopyMail, and TransferMail. For these methods, only the emails that match the filter's expression are returned in the email bundle. In the case of TransferMail, only the matching emails are removed from the mail server. The filter allows any header field, or the body, to be checked.

Here are some examples of expressions:

Body like "mortgage rates*". 
Subject contains "update" and From contains "chilkat" 
To = "info@chilkatsoft.com" 

Here are the general rules for forming filter expressions:

Any MIME header field name can be used, case is insensitive. 
Literal strings are double-quoted, and case is insensitive. 
The "*" wildcard matches 0 or more occurrences of any character. 
Parentheses can be used to control precedence. 
The logical operators are: AND, OR, NOT (case insensitive) 
Comparison operators are: =, <, >, <=, >=, <> 
String comparison operators are: CONTAINS, LIKE (case insensitive)

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HeloHostname
Function ComHeloHostname Returns String
Procedure Set ComHeloHostname String value

Specifies the hostname to be used for the EHLO/HELO command sent to an SMTP server. By default, this property is an empty string which causes the local hostname to be used.

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HttpProxyAuthMethod
Function ComHttpProxyAuthMethod Returns String
Procedure Set ComHttpProxyAuthMethod String value

If an HTTP proxy requiring authentication is to be used, set this property to the HTTP proxy authentication method name. Valid choices are "Basic" or "NTLM".

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HttpProxyDomain
Function ComHttpProxyDomain Returns String
Procedure Set ComHttpProxyDomain String value

The NTLM authentication domain (optional) if NTLM authentication is used.

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HttpProxyHostname
Function ComHttpProxyHostname Returns String
Procedure Set ComHttpProxyHostname String value

If an HTTP proxy is to be used, set this property to the HTTP proxy hostname or IPv4 address (in dotted decimal notation).

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HttpProxyPassword
Function ComHttpProxyPassword Returns String
Procedure Set ComHttpProxyPassword String value

If an HTTP proxy requiring authentication is to be used, set this property to the HTTP proxy password.

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HttpProxyPort
Function ComHttpProxyPort Returns Integer
Procedure Set ComHttpProxyPort Integer value

If an HTTP proxy is to be used, set this property to the HTTP proxy port number. (Two commonly used HTTP proxy ports are 8080 and 3128.)

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HttpProxyUsername
Function ComHttpProxyUsername Returns String
Procedure Set ComHttpProxyUsername String value

If an HTTP proxy requiring authentication is to be used, set this property to the HTTP proxy login name.

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ImmediateDelete
Function ComImmediateDelete Returns Boolean
Procedure Set ComImmediateDelete Boolean value

If True (the default) then any method that deletes an email from the POP3 server will also issue a QUIT command to close the session to ensure the message is deleted immediately.

The POP3 protocol is such that the DELE command marks a message for deletion. It is not actually deleted until the QUIT command is sent and the session is closed. If ImmediateDelete is True, then any Chilkat MailMan method that marks a message (or messages) for deletion will also followup with a QUIT command and close the session. If your program sets ImmediateDelete to False, it must make sure to call Pop3EndSession to ensure that messages marked for deletion are actually deleted.

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IncludeRootCert
Function ComIncludeRootCert Returns Boolean
Procedure Set ComIncludeRootCert Boolean value

Controls whether the root certificate in the chain of authentication (i.e. the CA root certificate) is included within the S/MIME signature of a signed email. Note: This property only applies if the EmbedCertChain property is also True.

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IsPop3Connected
Function ComIsPop3Connected Returns Boolean
Introduced in version 9.5.0.48

Returns True if still connected to the POP3 server. Otherwise returns False.

Note: Accessing this property does not trigger any communication with the POP3 server. A connection to the POP3 server is established by explicitly calling Pop3BeginSession, or it is implicitly established as needed by any method that requires communication. A lost connection might only be detected when attempting to communicate with the server. To truly determine if a connection to the POP3 server is open and valid, it may be necessary to call the Pop3Noop method instead. This property might return True if the server has disconnected, but the client has not attempted to communicate with the server since the disconnect.

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IsSmtpConnected
Function ComIsSmtpConnected Returns Boolean

Returns True if still connected to the SMTP server. Otherwise returns False (if there was never a connection in the first place, or if the connection was lost).

Note: Accessing this property does not trigger any communication with the SMTP server. A connection to the SMTP server is established by explicitly calling OpenSmtpConnection, or it is implicitly established as needed by any method that requires communication. A lost connection might only be detected when attempting to communicate with the server. To truly determine if a connection to the SMTP server is open and valid, it may be necessary to call the SmtpNoop method instead. This property might return True if the server has disconnected, but the client has not attempted to communicate with the server since the disconnect.

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LastBinaryResult
Function ComLastBinaryResult Returns Variant
Introduced in version 9.5.0.52

The binary data returned by the last (binary data returning) method called. Only available if Chilkat.Global.KeepBinaryResult is set to True. This provides a means for obtaining large varbinary results in the SQL Server environment (where limitations exist in getting large amounts of data returned by method calls, but where temp tables can be used for binary properties).

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LastErrorHtml
Function ComLastErrorHtml Returns String

Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorText
Function ComLastErrorText Returns String

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorXml
Function ComLastErrorXml Returns String

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastMethodSuccess
Function ComLastMethodSuccess Returns Boolean
Procedure Set ComLastMethodSuccess Boolean value
Introduced in version 9.5.0.52

Indicate whether the last method call succeeded or failed. A value of True indicates success, a value of False indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = True and failure = False.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to True. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

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LastSendQFilename
Function ComLastSendQFilename Returns String
This property is deprecated. It will be removed in a future version.

The name of the file created in the SMTPQ's queue directory for the last email sent via SendQ, SendQ2, or SendMimeQ.

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LastSmtpStatus
Function ComLastSmtpStatus Returns Integer

Returns the last SMTP diagnostic status code. This can be checked after sending an email. SMTP reply codes are defined by RFC 821 - Simple Mail Transfer Protocol.

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LastStringResult
Function ComLastStringResult Returns String
Introduced in version 9.5.0.52

The string return value of the last (string returning) method called. Only available if Chilkat.Global.KeepStringResult is set to True. This provides a means for obtaining large string results in the SQL Server environment (where limitations exist in getting long strings returned by method calls, but where temp tables can be used for string properties).

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LastStringResultLen
Function ComLastStringResultLen Returns Integer
Introduced in version 9.5.0.53

The length, in characters, of the string contained in the LastStringResult property.

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LogMailReceivedFilename
Function ComLogMailReceivedFilename Returns String
Procedure Set ComLogMailReceivedFilename String value

A log filename where the MailMan will log each message in the exact form it was received from a POP3 server. This property is provided for help in debugging.

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LogMailSentFilename
Function ComLogMailSentFilename Returns String
Procedure Set ComLogMailSentFilename String value

A log filename where the MailMan will log the exact message sent to the SMTP server. This property is helpful in debugging.

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MailHost
Function ComMailHost Returns String
Procedure Set ComMailHost String value

The domain name of the POP3 server. Do not include "http://" in the domain name. This property may also be set to an IP address string, such as "168.144.70.227". Both IPv4 and IPv6 address formats are supported.

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MailPort
Function ComMailPort Returns Integer
Procedure Set ComMailPort Integer value

The port number of the POP3 server. Only needs to be set if the POP3 server is running on a non-standard port. The default value is 110. (If SSL/TLS is used by setting the PopSsl property = True, then this property should probably be set to 995, which is the standard SSL/TLS port for POP3.)

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MaxCount
Function ComMaxCount Returns Integer
Procedure Set ComMaxCount Integer value

Limits the number of messages the MailMan will try to retrieve from the POP3 server in a single method call. If you are trying to read a large mailbox, you might set this to a value such as 100 to download 100 emails at a time.

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OAuth2AccessToken
Function ComOAuth2AccessToken Returns String
Procedure Set ComOAuth2AccessToken String value
Introduced in version 9.5.0.44

The OAUTH2 access token if OAUTH2 authentication is to be used for the authentication. For GMail, the Chilkat HTTP class/object's G_SvcOauthAccessToken method can be called to obtain an OAUTH2 access token.

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OpaqueSigning
Function ComOpaqueSigning Returns Boolean
Procedure Set ComOpaqueSigning Boolean value

When set to True, signed emails are sent using opaque signing. The default is to send clear-text (multipart/signed) emails.

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P7mEncryptAttachFilename
Function ComP7mEncryptAttachFilename Returns String
Procedure Set ComP7mEncryptAttachFilename String value
Introduced in version 9.5.0.30

The filename attribute to be used in the Content-Disposition header field when sending a PCKS7 encrypted email. The default value is "smime.p7m".

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P7mSigAttachFilename
Function ComP7mSigAttachFilename Returns String
Procedure Set ComP7mSigAttachFilename String value
Introduced in version 9.5.0.30

The filename attribute to be used in the Content-Disposition header field when sending a PCKS7 opaque signed email. The default value is "smime.p7m".

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P7sSigAttachFilename
Function ComP7sSigAttachFilename Returns String
Procedure Set ComP7sSigAttachFilename String value
Introduced in version 9.5.0.30

The filename attribute to be used in the Content-Disposition header field when sending a signed email with a detached PKCS7 signature. The default value is "smime.p7s".

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Pop3SessionId
Function ComPop3SessionId Returns Integer

0 if no POP3 session is active. Otherwise a positive integer that is incremented with each new POP3 session. It may be used to determine if a new POP3 session has been established.

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Pop3SessionLog
Function ComPop3SessionLog Returns String

This string property accumulates the raw commands sent to the POP3 server, and the raw responses received from the POP3 server. This property is read-only, but it may be cleared by calling ClearPop3SessionLog.

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Pop3SPA
Function ComPop3SPA Returns Boolean
Procedure Set ComPop3SPA Boolean value

Controls whether SPA authentication for POP3 is used or not. To use SPA authentication, set this propoerty = True. No other programming changes are required. The default value is False.

Note: If SPA (i.e. NTLM) authentication does not succeed, set the Global.DefaultNtlmVersion property equal to 1 and then retry.

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Pop3SslServerCertVerified
Function ComPop3SslServerCertVerified Returns Boolean

When connecting via SSL, this property is True if the POP3 server's SSL certificate was verified. Otherwise it is set to False.

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Pop3Stls
Function ComPop3Stls Returns Boolean
Procedure Set ComPop3Stls Boolean value

If True, then an unencrypted connection (typically on port 110) is automatically converted to a secure TLS connection via the STLS command (see RFC 2595) when connecting. This should only be used with POP3 servers that support the STLS capability. If this property is set to True, then the PopSsl property should be set to False. (The PopSsl property controls whether the connection is SSL/TLS from the beginning. Setting the Pop3Stls property = True indicates that the POP3 client will initially connect unencrypted and then convert to TLS.)

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PopPassword
Function ComPopPassword Returns String
Procedure Set ComPopPassword String value

The POP3 password.

If the Pop3SPA property is set, the PopUsername and PopPassword properties may be set to the string "default" to cause the component to use the current logged-on credentials (of the calling process) for authentication.

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PopPasswordBase64
Function ComPopPasswordBase64 Returns String
Procedure Set ComPopPasswordBase64 String value

Provides a way to specify the POP3 password from a Base64-encoded string.

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PopSsl
Function ComPopSsl Returns Boolean
Procedure Set ComPopSsl Boolean value

Controls whether TLS/SSL is used when reading email from a POP3 server. Note: Check first to determine if your POP3 server can accept TLS/SSL connections. Also, be sure to set the MailPort property to the TLS/SSL POP3 port number, which is typically 995.

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PopUsername
Function ComPopUsername Returns String
Procedure Set ComPopUsername String value

The POP3 login name.

If the Pop3SPA property is set, the PopUsername and PopPassword properties may be set to the string "default" to cause the component to use the current logged-on credentials (of the calling process) for authentication.

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PreferIpv6
Function ComPreferIpv6 Returns Boolean
Procedure Set ComPreferIpv6 Boolean value

If True, then use IPv6 over IPv4 when both are supported for a particular domain. The default value of this property is False, which will choose IPv4 over IPv6.

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ReadTimeout
Function ComReadTimeout Returns Integer
Procedure Set ComReadTimeout Integer value

The maximum time to wait, in seconds, if the POP3 or SMTP server stops responding. The default value is 30 seconds.

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RequireSslCertVerify
Function ComRequireSslCertVerify Returns Boolean
Procedure Set ComRequireSslCertVerify Boolean value

If True, then the mailman will verify the SMTP or POP3 server's SSL certificate when connecting. The certificate is expired, or if the cert's signature is invalid, the connection is not allowed. The default value of this property is False. (Obviously, this only applies to SSL/TLS connections.)

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ResetDateOnLoad
Function ComResetDateOnLoad Returns Boolean
Procedure Set ComResetDateOnLoad Boolean value

Controls whether the Date header field is reset to the current date/time when an email is loaded from LoadMbx, LoadEml, LoadMime, LoadXml, or LoadXmlString. The default is False (to not reset the date). To automatically reset the date, set this property equal to True.

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SendBufferSize
Function ComSendBufferSize Returns Integer
Procedure Set ComSendBufferSize Integer value

The buffer size to be used with the underlying TCP/IP socket for sending. The default value is 32767.

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SendIndividual
Function ComSendIndividual Returns Boolean
Procedure Set ComSendIndividual Boolean value

Determines how emails are sent to distribution lists. If True, emails are sent to each recipient in the list one at a time, with the "To"header field containing the email address of the recipient. If False, emails will contain in the "To"header field, and are sent to 100 BCC recipients at a time. As an example, if your distribution list contained 350 email addresses, 4 emails would be sent, the first 3 having 100 BCC recipients, and the last email with 50 BCC recipients.The default value of this property is True.

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SizeLimit
Function ComSizeLimit Returns Integer
Procedure Set ComSizeLimit Integer value

The MailMan will not try to retrieve mail messages from a POP3 server that are greater than this size limit. The default value is 0 indicating no size limit. The SizeLimit is specified in number of bytes.

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SmtpAuthMethod
Function ComSmtpAuthMethod Returns String
Procedure Set ComSmtpAuthMethod String value

This property should usually be left empty. The MailMan will by default choose the most secure login method available to prevent unencrypted username and passwords from being transmitted if possible. However, some SMTP servers may not advertise the acceptable authorization methods, and therefore it is not possible to automatically determine the best authorization method. To force a particular auth method, or to prevent any authorization from being used, set this property to one of the following values: "NONE", "LOGIN", "PLAIN", "CRAM-MD5", or "NTLM".

Note: If NTLM authentication does not succeed, set the Global.DefaultNtlmVersion property equal to 1 and then retry.

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SmtpFailReason
Function ComSmtpFailReason Returns String
Introduced in version 9.5.0.48

A keyword that indicates the cause of failure (or success) for the last SMTP related method called. Possible values are:

  1. Success The method call was successful.
  2. Failed A general failure not covered by any of the other possible keywords.
  3. NoValidRecipients The SMTP server rejected all receipients.
  4. NoRecipients The app failed to provide any recipients (TO, CC, or BCC).
  5. SomeBadRecipients The AllOrNone property is True, and some recipients were rejected by the SMTP server.
  6. Aborted The application aborted the method.
  7. NoFrom The failed to provide a FROM address.
  8. FromFailure The SMTP replied with an error in response to the "MAIL FROM" command.
  9. NoCredentials The application did not provide the required credentials, such as username or password.
  10. AuthFailure The login (authentication) failed.
  11. DataFailure The SMTP replied with an error in response to the "DATA" command.
  12. NoSmtpHostname The application failed to provide an SMTP hostname or IP address.
  13. StartTlsFailed Failed to convert the TCP connection to TLS via STARTTLS.
  14. ConnectFailed Unable to establish a TCP or TLS connection to the SMTP server.
  15. GreetingError The SMTP server immediately responded with an error status in the intial greeting.
  16. ConnectionLost The connection to the SMTP server was lost at some point during the method call.
  17. Timeout A timeout occurred when reading or writing the socket connection.
  18. RenderFailed A failure occurred when rendering the email. (Rendering the email for sending includes tasks such as signing or encrypting.)
  19. NotUnlocked The UnlockComponent method was not previously called on at least one instance of the mailman object.
  20. InternalFailure An internal failure that should be reported to Chilkat support.

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SmtpHost
Function ComSmtpHost Returns String
Procedure Set ComSmtpHost String value

The domain name of the SMTP server. Do not include "http://" in the domain name. This property may also be set to an IP address string, such as "168.144.70.227". Both IPv4 and IPv6 address formats are supported.

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SmtpLoginDomain
Function ComSmtpLoginDomain Returns String
Procedure Set ComSmtpLoginDomain String value

The Windows domain for logging into the SMTP server. Use this only if your SMTP server requires NTLM authentication, which means your SMTP server uses Integrated Windows Authentication. If there is no domain, this can be left empty.

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SmtpPassword
Function ComSmtpPassword Returns String
Procedure Set ComSmtpPassword String value

The password for logging into the SMTP server. Use this only if your SMTP server requires authentication. Chilkat Email.NET supports the LOGIN, PLAIN, CRAM-MD5, and NTLM login methods, and it will automatically choose the most secure method available. Additional login methods will be available in the future.

If NTLM (Windows-Integrated) authentication is used, the SmtpUsername and SmtpPassword properties may be set to the string "default" to cause the component to use the current logged-on credentials (of the calling process) for authentication.

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SmtpPipelining
Function ComSmtpPipelining Returns Boolean
Procedure Set ComSmtpPipelining Boolean value
Introduced in version 9.5.0.49

Controls whether SMTP pipelining is automatically used when the SMTP server indicates support for it. The default is True. Setting this property equal to False will prevent the SMTP pipelining feature from being used.

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SmtpPort
Function ComSmtpPort Returns Integer
Procedure Set ComSmtpPort Integer value

The port number of the SMTP server used to send email. Only needs to be set if the SMTP server is running on a non-standard port. The default value is 25. If SmtpSsl is set to True, this property should be set to 465. (TCP port 465 is reserved by common industry practice for secure SMTP communication using the SSL protocol.)

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SmtpSessionLog
Function ComSmtpSessionLog Returns String

This string property accumulates the raw commands sent to the SMTP server, and the raw responses received from the SMTP server. This property is read-only, but it may be cleared by calling ClearSmtpSessionLog.

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SmtpSsl
Function ComSmtpSsl Returns Boolean
Procedure Set ComSmtpSsl Boolean value

When set to True, causes the mailman to connect to the SMTP server via the TLS/SSL protocol.

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SmtpSslServerCertVerified
Function ComSmtpSslServerCertVerified Returns Boolean

If using SSL, this property will be set to True if the SMTP server's SSL certificate was verified when establishing the connection. Otherwise it is set to False.

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SmtpUsername
Function ComSmtpUsername Returns String
Procedure Set ComSmtpUsername String value

The login for logging into the SMTP server. Use this only if your SMTP server requires authentication.

Note: In many cases, an SMTP server will not require authentication when sending to an email address local to it's domain. However, when sending email to an external domain, authentication is required (i.e. the SMTP server is being used as a relay).

If the Pop3SPA property is set, the PopUsername and PopPassword properties may be set to the string "default" to cause the component to use the current logged-on credentials (of the calling process) for authentication.

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SocksHostname
Function ComSocksHostname Returns String
Procedure Set ComSocksHostname String value

The SOCKS4/SOCKS5 hostname or IPv4 address (in dotted decimal notation). This property is only used if the SocksVersion property is set to 4 or 5).

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SocksPassword
Function ComSocksPassword Returns String
Procedure Set ComSocksPassword String value

The SOCKS5 password (if required). The SOCKS4 protocol does not include the use of a password, so this does not apply to SOCKS4.

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SocksPort
Function ComSocksPort Returns Integer
Procedure Set ComSocksPort Integer value

The SOCKS4/SOCKS5 proxy port. The default value is 1080. This property only applies if a SOCKS proxy is used (if the SocksVersion property is set to 4 or 5).

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SocksUsername
Function ComSocksUsername Returns String
Procedure Set ComSocksUsername String value

The SOCKS4/SOCKS5 proxy username. This property is only used if the SocksVersion property is set to 4 or 5).

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SocksVersion
Function ComSocksVersion Returns Integer
Procedure Set ComSocksVersion Integer value

May be set to one of the following integer values:

0 - No SOCKS proxy is used. This is the default.
4 - Connect via a SOCKS4 proxy.
5 - Connect via a SOCKS5 proxy.

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SoRcvBuf
Function ComSoRcvBuf Returns Integer
Procedure Set ComSoRcvBuf Integer value

Sets the receive buffer size socket option. Normally, this property should be left unchanged. The default value is 4194304.

This property can be increased if download performance seems slow. It is recommended to be a multiple of 4096.

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SoSndBuf
Function ComSoSndBuf Returns Integer
Procedure Set ComSoSndBuf Integer value

Sets the send buffer size socket option. Normally, this property should be left unchanged. The default value is 262144.

This property can be increased if upload performance seems slow. It is recommended to be a multiple of 4096. Testing with sizes such as 512K and 1MB is reasonable.

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SslAllowedCiphers
Function ComSslAllowedCiphers Returns String
Procedure Set ComSslAllowedCiphers String value
Introduced in version 9.5.0.48

Provides a means for setting a list of ciphers that are allowed for SSL/TLS connections. The default (empty string) indicates that all implemented ciphers are possible. The TLS ciphers supported in Chilkat v9.5.0.55 and later are:

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_AES_256_CBC_SHA256
TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA256
TLS_RSA_WITH_AES_128_GCM_SHA256
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
TLS_ECDHE_RSA_WITH_RC4_128_SHA
TLS_RSA_WITH_RC4_128_SHA
TLS_RSA_WITH_RC4_128_MD5
TLS_DHE_RSA_WITH_DES_CBC_SHA
TLS_RSA_WITH_DES_CBC_SHA
To restrict SSL/TLS connections to one or more specific ciphers, set this property to a comma-separated list of ciphers such as "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384". The order should be in terms of preference, with the preferred algorithms listed first. (Note that the client cannot specifically choose the algorithm is picked because it is the server that chooses. The client simply provides the server with a list from which to choose.)

The property can also disallow connections with servers having certificates with RSA keys less than a certain size. By default, server certificates having RSA keys of 512 bits or greater are allowed. Add the keyword "rsa1024" to disallow connections with servers having keys smaller than 1024 bits. Add the keyword "rsa2048" to disallow connections with servers having keys smaller than 2048 bits.

Note: Prior to Chilkat v9.5.0.55, it was not possible to explicitly list allowed cipher suites. The deprecated means for indicating allowed ciphers was both incomplete and unprecise. For example, the following keywords could be listed to allow matching ciphers: "aes256-cbc", "aes128-cbc", "3des-cbc", and "rc4". These keywords will still be recognized, but programs should be updated to explicitly list the allowed ciphers.

secure-renegotiation: Starting in Chilkat v9.5.0.55, the keyword "secure-renegotiation" may be added to require that all renegotions be done securely (as per RFC 5746).

best-practices: Starting in Chilkat v9.5.0.55, this property may be set to the single keyword "best-practices". This will allow ciphers based on the current best practices. As new versions of Chilkat are released, the best practices may change. Changes will be noted here. The current best practices are:

  • If the server uses an RSA key, it must be 1024 bits or greater.
  • All renegotations must be secure renegotiations.
  • All ciphers using RC4, DES, or 3DES are disallowed.

Example: The following string would restrict to 2 specific cipher suites, require RSA keys to be 1024 bits or greater, and require secure renegotiations: "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, rsa1024, secure-renegotiation"

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SslProtocol
Function ComSslProtocol Returns String
Procedure Set ComSslProtocol String value
Introduced in version 9.5.0.46

Selects the secure protocol to be used for secure (SSL/TLS) connections (for both SMTP and POP3). Possible values are:

default
TLS 1.2
TLS 1.1
TLS 1.0
SSL 3.0
TLS 1.2 or higher
TLS 1.1 or higher
TLS 1.0 or higher
The default value is "default" which will choose the, which allows for the protocol to be selected dynamically at runtime based on the requirements of the server. Choosing an exact protocol will cause the connection to fail unless that exact protocol is negotiated. It is better to choose "X or higher" than an exact protocol. The "default" is effectively "SSL 3.0 or higher".

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StartTLS
Function ComStartTLS Returns Boolean
Procedure Set ComStartTLS Boolean value

When set to True, causes the mailman to issue a STARTTLS command to switch over to a secure SSL/TLS connection prior to authenticating and sending email. The default value is False.

More Information and Examples
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StartTLSifPossible
Function ComStartTLSifPossible Returns Boolean
Procedure Set ComStartTLSifPossible Boolean value
Introduced in version 9.5.0.67

When set to True, causes the mailman to do STARTTLS (if possible and supported by the server) to convert to a secure SSL/TLS connection prior to authenticating and sending email. The default value is True.

Note: Setting the StartTLS property = True causes STARTTLS to always be used, even if the SMTP server does not support it. This property allows for a non-encrypted connection, whereas the StartTLS property disallows non-encrypted connections.

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TlsCipherSuite
Function ComTlsCipherSuite Returns String
Introduced in version 9.5.0.49

Contains the current or last negotiated TLS cipher suite. If no TLS connection has yet to be established, or if a connection as attempted and failed, then this will be empty. A sample cipher suite string looks like this: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256.

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TlsPinSet
Function ComTlsPinSet Returns String
Procedure Set ComTlsPinSet String value
Introduced in version 9.5.0.55

Specifies a set of pins for Public Key Pinning for TLS connections. This property lists the expected SPKI fingerprints for the server certificates. If the server's certificate (sent during the TLS handshake) does not match any of the SPKI fingerprints, then the TLS handshake is aborted and the connection fails. The format of this string property is as follows:

hash_algorithm, encoding, SPKI_fingerprint_1, SPKI_fingerprint_2, ...
For example, the following string specifies a single sha256 base64-encoded SPKI fingerprint:
"sha256, base64, lKg1SIqyhPSK19tlPbjl8s02yChsVTDklQpkMCHvsTE="
This example specifies two SPKI fingerprints:
"sha256, base64, 4t37LpnGmrMEAG8HEz9yIrnvJV2euVRwCLb9EH5WZyI=, 68b0G5iqMvWVWvUCjMuhLEyekM5729PadtnU5tdXZKs="
Any of the following hash algorithms are allowed:.sha1, sha256, sha384, sha512, md2, md5, haval, ripemd128, ripemd160,ripemd256, or ripemd320.

The following encodings are allowed: base64, hex, and any of the encodings indicated in the link below.

More Information and Examples
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TlsVersion
Function ComTlsVersion Returns String
Introduced in version 9.5.0.49

Contains the current or last negotiated TLS protocol version. If no TLS connection has yet to be established, or if a connection as attempted and failed, then this will be empty. Possible values are "SSL 3.0", "TLS 1.0", "TLS 1.1", and "TLS 1.2".

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UseApop
Function ComUseApop Returns Boolean
Procedure Set ComUseApop Boolean value

If True, will automatically use APOP authentication if the POP3 server supports it. The default value of this property is False.

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VerboseLogging
Function ComVerboseLogging Returns Boolean
Procedure Set ComVerboseLogging Boolean value

If set to True, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is False. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
Function ComVersion Returns String

Version of the component/library, such as "9.5.0.63"

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Methods

AddPfxSourceData
Function ComAddPfxSourceData Variant pfxData String password Returns Boolean

Adds a PFX to the object's internal list of sources to be searched for certificates and private keys when decrypting or when creating signed email for sending. Multiple PFX sources can be added by calling this method once for each. (On the Windows operating system, the registry-based certificate stores are also automatically searched, so it is commonly not required to explicitly add PFX sources.)

The pfxData contains the bytes of a PFX file (also known as PKCS12 or .p12).

Returns True for success, False for failure.

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AddPfxSourceFile
Function ComAddPfxSourceFile String pfxFilePath String password Returns Boolean

Adds a PFX file to the object's internal list of sources to be searched for certificates and private keys when decrypting or when sending signed email. Multiple PFX files can be added by calling this method once for each. (On the Windows operating system, the registry-based certificate stores are also automatically searched, so it is commonly not required to explicitly add PFX sources.)

The pfxFilePath contains the bytes of a PFX file (also known as PKCS12 or .p12).

Returns True for success, False for failure.

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CheckMail
Function ComCheckMail Returns Integer

Returns the number of emails available on the POP3 server. Returns -1 on error.

The VerifyPopConnection method can be called to verify basic TCP/IP connectivity with the POP3 server. The VerifyPopLogin method can be called to verify the POP3 login. The Verify* methods are intended to be called as a way of diagnosing the failure when a POP3 method returns an error status.

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CheckMailAsync (1)
Function ComCheckMailAsync Returns cComChilkatTask

Creates an asynchronous task to call the CheckMail method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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ClearBadEmailAddresses
Procedure ComClearBadEmailAddresses

Clears the list of bad email addresses stored within the Mailman object. When an email-sending method is called, any email addresses rejected by the SMTP server will be cached within the Mailman object. These can be accessed by calling the GetBadEmailAddresses method. This method clears the Mailman's in-memory cache of bad addresses.

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ClearPop3SessionLog
Procedure ComClearPop3SessionLog

Clears the contents of the Pop3SessionLog property.

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ClearSmtpSessionLog
Procedure ComClearSmtpSessionLog

Clears the contents of the SmtpSessionLog property.

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CloseSmtpConnection
Function ComCloseSmtpConnection Returns Boolean

The mailman object automatically opens an SMTP connection (if necessary) whenever an email-sending method is called. The connection is kept open until explicitly closed by this method. Calling this method is entirely optional. The SMTP connection is also automatically closed when the mailman object is destructed. Thus, if an application calls SendEmail 10 times to send 10 emails, the 1st call will open the SMTP connection, while the subsequent 9 will send over the existing connection (unless a property such as username, login, hostname, etc. is changed, which would force the connection to become closed and re-established with the next mail-sending method call).

Note: This method sends a QUIT command to the SMTP server prior to closing the connection.

Returns True for success, False for failure.

More Information and Examples
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CloseSmtpConnectionAsync (1)
Function ComCloseSmtpConnectionAsync Returns cComChilkatTask

Creates an asynchronous task to call the CloseSmtpConnection method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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CopyMail
Function ComCopyMail Returns cComChilkatEmailBundle

Copy the email from a POP3 server into a EmailBundle. This does not remove the email from the POP3 server.

Returns null on failure

More Information and Examples
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CopyMailAsync (1) (2)
Function ComCopyMailAsync Returns cComChilkatTask

Creates an asynchronous task to call the CopyMail method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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DeleteBundle
Function ComDeleteBundle cComChilkatEmailBundle emailBundle Returns Boolean

Marks multiple emails on the POP3 server for deletion. (Each email in emailBundle that is also present on the server is marked for deletion.) To complete the deletion of the emails, a "QUIT" message must be sent and the POP3 session ended. This will happen automatically when the ImmediateDelete property equals True, which is the default. If ImmediateDelete equals False, then the Pop3EndSession method can be called to send the "QUIT" and end the session (i.e. disconnect.)

Note: When making multiple calls to a Delete* method, it's best to turn off ImmediateDelete, and then manually call Pop3EndSession to finalize the deletions.

Also, any method call requiring communication with the POP3 server will automatically re-establish a session based on the current property settings.

Returns True for success, False for failure.

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DeleteBundleAsync (1)
Function ComDeleteBundleAsync cComChilkatEmailBundle emailBundle Returns cComChilkatTask

Creates an asynchronous task to call the DeleteBundle method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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DeleteByMsgnum
Function ComDeleteByMsgnum Integer msgnum Returns Boolean

Marks an email for deletion by message number. WARNING: Be very careful if calling this method. Message numbers are specific to a POP3 session. If a maildrop has (for example) 10 messages, the message numbers will be 1, 2, 3, ... 10. If message number 1 is deleted and a new POP3 session is established, there will be 9 messages numbered 1, 2, 3, ... 9.

IMPORTANT: A POP3 must first be established by either calling Pop3BeginSession explicitly, or implicitly by calling some other method that automatically establishes the session. This method will not automatically establish a new POP3 session (because if it did, the message numbers would potentially be different than what the application expects).

This method only marks an email for deletion. It is not actually removed from the maildrop until the POP3 session is explicitly ended by calling Pop3EndSession.

Returns True for success, False for failure.

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DeleteByMsgnumAsync (1)
Function ComDeleteByMsgnumAsync Integer msgnum Returns cComChilkatTask

Creates an asynchronous task to call the DeleteByMsgnum method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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DeleteByUidl
Function ComDeleteByUidl String uidl Returns Boolean

Marks an email on the POP3 server for deletion. To complete the deletion of an email, a "QUIT" message must be sent and the POP3 session ended. This will happen automatically when the ImmediateDelete property equals True, which is the default. If ImmediateDelete equals False, then the Pop3EndSession method can be called to send the "QUIT" and end the session (i.e. disconnect.)

Note: When making multiple calls to a Delete* method, it's best to turn off ImmediateDelete, and then manually call Pop3EndSession to finalize the deletions.

Also, any method call requiring communication with the POP3 server will automatically re-establish a session based on the current property settings.

Returns True for success, False for failure.

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DeleteByUidlAsync (1)
Function ComDeleteByUidlAsync String uidl Returns cComChilkatTask

Creates an asynchronous task to call the DeleteByUidl method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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DeleteEmail
Function ComDeleteEmail cComChilkatEmail email Returns Boolean

Marks an email on the POP3 server for deletion. To complete the deletion of an email, a "QUIT" message must be sent and the POP3 session ended. This will happen automatically when the ImmediateDelete property equals True, which is the default. If ImmediateDelete equals False, then the Pop3EndSession method can be called to send the "QUIT" and end the session (i.e. disconnect.)

Note: When making multiple calls to a Delete* method, it's best to turn off ImmediateDelete, and then manually call Pop3EndSession to finalize the deletions.

Also, any method call requiring communication with the POP3 server will automatically re-establish a session based on the current property settings.

Returns True for success, False for failure.

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DeleteEmailAsync (1)
Function ComDeleteEmailAsync cComChilkatEmail email Returns cComChilkatTask

Creates an asynchronous task to call the DeleteEmail method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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DeleteMultiple
Function ComDeleteMultiple cComCkStringArray uidlArray Returns Boolean

Marks multiple emails on the POP3 server for deletion. (Any email on the server having a UIDL equal to a UIDL found in uidlArray is marked for deletion.) To complete the deletion of the emails, a "QUIT" message must be sent and the POP3 session ended. This will happen automatically when the ImmediateDelete property equals True, which is the default. If ImmediateDelete equals False, then the Pop3EndSession method can be called to send the "QUIT" and end the session (i.e. disconnect.)

Note: When making multiple calls to a Delete* method, it's best to turn off ImmediateDelete, and then manually call Pop3EndSession to finalize the deletions.

Also, any method call requiring communication with the POP3 server will automatically re-establish a session based on the current property settings.

Returns True for success, False for failure.

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DeleteMultipleAsync (1)
Function ComDeleteMultipleAsync cComCkStringArray uidlArray Returns cComChilkatTask

Creates an asynchronous task to call the DeleteMultiple method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchByMsgnum
Function ComFetchByMsgnum Integer msgnum Returns cComChilkatEmail

Fetches an email by message number. WARNING: Be very careful if calling this method. Message numbers are specific to a POP3 session. If a maildrop has (for example) 10 messages, the message numbers will be 1, 2, 3, ... 10. If message number 1 is deleted and a new POP3 session is established, there will be 9 messages numbered 1, 2, 3, ... 9.

IMPORTANT: A POP3 connection must first be established by either calling Pop3BeginSession explicitly, or implicitly by calling some other method that automatically establishes the session. This method will not automatically establish a new POP3 session (because if it did, the message numbers would potentially be different than what the application expects).

Returns null on failure

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FetchByMsgnumAsync (1) (2)
Function ComFetchByMsgnumAsync Integer msgnum Returns cComChilkatTask

Creates an asynchronous task to call the FetchByMsgnum method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchEmail
Function ComFetchEmail String uidl Returns cComChilkatEmail

Fetches an email from the POP3 mail server given its UIDL. Calling this method does not remove the email from the server. A typical program might get the email headers from the POP3 server by calling GetAllHeaders or GetHeaders, and then fetch individual emails by UIDL.

Returns a null reference on failure.

Returns null on failure

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FetchEmailAsync (1) (2)
Function ComFetchEmailAsync String uidl Returns cComChilkatTask

Creates an asynchronous task to call the FetchEmail method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchMime
Function ComFetchMime String uidl Returns Variant

Fetches an email by UIDL and returns the MIME source of the email in a byte array.

Returns null on failure

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FetchMimeAsync (1)
Function ComFetchMimeAsync String uidl Returns cComChilkatTask

Creates an asynchronous task to call the FetchMime method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchMimeBd
Function ComFetchMimeBd String uidl cComChilkatBinData mimeData Returns Boolean
Introduced in version 9.5.0.73

Fetches an email by UIDL and returns the MIME source of the email in uidl.

Returns True for success, False for failure.

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FetchMimeBdAsync (1)
Function ComFetchMimeBdAsync String uidl cComChilkatBinData mimeData Returns cComChilkatTask
Introduced in version 9.5.0.73

Creates an asynchronous task to call the FetchMimeBd method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchMimeByMsgnum
Function ComFetchMimeByMsgnum Integer msgnum Returns Variant

Fetches an email by message number and returns the MIME source of the email in a byte array. WARNING: Message sequend numbers are specific to a POP3 session. If a maildrop has (for example) 10 messages, the message numbers will be 1, 2, 3, ... 10. If message number 1 is deleted and a new POP3 session is established, there will be 9 messages numbered 1, 2, 3, ... 9.

IMPORTANT: A POP3 connection must first be established by either calling Pop3BeginSession explicitly, or implicitly by calling some other method that automatically establishes the session. This method will not automatically establish a new POP3 session (because if it did, the message numbers would potentially be different than what the application expects).

Returns null on failure

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FetchMimeByMsgnumAsync (1)
Function ComFetchMimeByMsgnumAsync Integer msgnum Returns cComChilkatTask

Creates an asynchronous task to call the FetchMimeByMsgnum method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchMultiple
Function ComFetchMultiple cComCkStringArray uidlArray Returns cComChilkatEmailBundle

Given an array of UIDL strings, fetchs all the emails from the POP3 server whose UIDL is present in the array, and returns the emails in a bundle.

Returns null on failure

More Information and Examples
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FetchMultipleAsync (1) (2)
Function ComFetchMultipleAsync cComCkStringArray uidlArray Returns cComChilkatTask

Creates an asynchronous task to call the FetchMultiple method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchMultipleHeaders
Function ComFetchMultipleHeaders cComCkStringArray uidlArray Integer numBodyLines Returns cComChilkatEmailBundle

Given an array of UIDL strings, fetchs all the email headers from the POP3 server whose UIDL is present in the array.

Note: The email objects returned in the bundle contain only headers. The attachments will be missing, and the bodies will be mostly missing (only the 1st numBodyLines lines of either the plain-text or HTML body will be present).

Returns null on failure

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FetchMultipleHeadersAsync (1) (2)
Function ComFetchMultipleHeadersAsync cComCkStringArray uidlArray Integer numBodyLines Returns cComChilkatTask

Creates an asynchronous task to call the FetchMultipleHeaders method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchMultipleMime
Function ComFetchMultipleMime cComCkStringArray uidlArray Returns cComCkStringArray

Given an array of UIDL strings, fetchs all the emails from the POP3 server whose UIDL is present in the array, and returns the MIME source of each email in an "stringarray" -- an object containing a collection of strings. Returns a null reference on failure.

Returns null on failure

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FetchMultipleMimeAsync (1) (2)
Function ComFetchMultipleMimeAsync cComCkStringArray uidlArray Returns cComChilkatTask

Creates an asynchronous task to call the FetchMultipleMime method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchSingleHeader
Function ComFetchSingleHeader Integer numBodyLines Integer messageNumber Returns cComChilkatEmail

Fetches a single header by message number. Returns an email object on success, or a null reference on failure.

Note: The email objects returned in the bundle contain only headers. The attachments will be missing, and the bodies will be mostly missing (only the 1st messageNumber lines of either the plain-text or HTML body will be present).

Also Important:Message numbers are specific to a POP3 session (whereas UIDLs are valid across sessions). Be very careful when using this method.

Returns null on failure

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FetchSingleHeaderAsync (1) (2)
Function ComFetchSingleHeaderAsync Integer numBodyLines Integer messageNumber Returns cComChilkatTask

Creates an asynchronous task to call the FetchSingleHeader method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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FetchSingleHeaderByUidl
Function ComFetchSingleHeaderByUidl Integer numBodyLines String uidl Returns cComChilkatEmail

Fetches a single header by UIDL. Returns an email object on success, or a null reference on failure.

Note: The email objects returned in the bundle contain only headers. The attachments will be missing, and the bodies will be mostly missing (only the 1st uidl lines of either the plain-text or HTML body will be present).

Returns null on failure

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FetchSingleHeaderByUidlAsync (1) (2)
Function ComFetchSingleHeaderByUidlAsync Integer numBodyLines String uidl Returns cComChilkatTask

Creates an asynchronous task to call the FetchSingleHeaderByUidl method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetAllHeaders
Function ComGetAllHeaders Integer numBodyLines Returns cComChilkatEmailBundle

Returns all the emails from the POP3 server, but only the first numBodyLines lines of the body. Attachments are not returned. The emails returned in the bundle are valid email objects, the only difference is that the body is truncated to include only the top numBodyLines lines, and the attachments will be missing.

Returns null on failure

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GetAllHeadersAsync (1) (2)
Function ComGetAllHeadersAsync Integer numBodyLines Returns cComChilkatTask

Creates an asynchronous task to call the GetAllHeaders method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetBadEmailAddresses
Procedure ComGetBadEmailAddresses cComCkStringArray strArray

Returns a string array object containing a list of failed and invalid email addresses that have accumulated during SMTP sends. The list will not contain duplicates. Also, this only works with some SMTP servers -- not all SMTP servers check the validity of each email address.

Note: An SMTP server can only validate the email addresses within it's own domain. External email address are not verifiable at the time of sending.

More Information and Examples
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GetFullEmail
Function ComGetFullEmail cComChilkatEmail email Returns cComChilkatEmail

If a partial email was obtained using GetHeaders or GetAllHeaders, this method will take the partial email as an argument, and download the full email from the server. A new email object (separate from the partial email) is returned. A null reference is returned on failure.

Returns null on failure

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GetFullEmailAsync (1) (2)
Function ComGetFullEmailAsync cComChilkatEmail email Returns cComChilkatTask

Creates an asynchronous task to call the GetFullEmail method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetHeaders
Function ComGetHeaders Integer numBodyLines Integer fromIndex Integer toIndex Returns cComChilkatEmailBundle

The same as the GetAllHeaders method, except only the emails from fromIndex to toIndex on the POP3 server are returned. The first email on the server is at index 0.

Returns null on failure

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GetHeadersAsync (1) (2)
Function ComGetHeadersAsync Integer numBodyLines Integer fromIndex Integer toIndex Returns cComChilkatTask

Creates an asynchronous task to call the GetHeaders method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetMailboxCount
Function ComGetMailboxCount Returns Integer

Returns the number of emails on the POP3 server, or -1 for failure.

This method is identical to CheckEmail. It was added for clarity.

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GetMailboxCountAsync (1)
Function ComGetMailboxCountAsync Returns cComChilkatTask

Creates an asynchronous task to call the GetMailboxCount method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetMailboxInfoXml
Function ComGetMailboxInfoXml Returns String

Returns an XML document with information about the emails in a POP3 mailbox. The XML contains the UIDL and size (in bytes) of each email in the mailbox.

Returns null on failure

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GetMailboxInfoXmlAsync (1)
Function ComGetMailboxInfoXmlAsync Returns cComChilkatTask

Creates an asynchronous task to call the GetMailboxInfoXml method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetMailboxSize
Function ComGetMailboxSize

Returns the total combined size in bytes of all the emails in the POP3 mailbox. This is also known as the "mail drop" size. Returns -1 on failure.

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GetMailboxSizeAsync (1)
Function ComGetMailboxSizeAsync Returns cComChilkatTask

Creates an asynchronous task to call the GetMailboxSize method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetPop3SslServerCert
Function ComGetPop3SslServerCert Returns cComChilkatCert

Returns the POP3 server's SSL certificate. This is available after connecting via SSL to a POP3 server. (To use POP3 SSL, set the PopSsl property = True.)

Returns a null reference if no POP3 SSL certificate is available.

Returns null on failure

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GetSentToEmailAddrs
Function ComGetSentToEmailAddrs Returns cComCkStringArray

Returns the list of successful email addresses in the last call to a mail sending method, such as SendEmail.

When an email is sent, the email addresses that were flagged invalid by the SMTP server are saved in a "bad email addresses" list within the mailman object, and the acceptable email addresses are saved in a "good email addresses" list (within the mailman object). These internal lists are automatically reset at the start of the next mail-sending method call. This allows for a program to know which email addresses were accepted and which were not.

Note: The AllOrNone property controls whether the mail-sending method, such as SendEmail, returns False (to indicate failure) if any single email address is rejected.

Note: An SMTP server can only be aware of invalid email addresses that are of the same domain. For example, the comcast.net mail servers would only be aware of what comcast.net email addresses are valid. All external email addresses are implicitly accepted because the server is simply forwarding the email towards the mail server controlling that domain.

Returns null on failure

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GetSizeByUidl
Function ComGetSizeByUidl String uidl Returns Integer

Returns the size of an email (including attachments) given the UIDL of the email on the POP3 server. Returns -1 for failure.

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GetSizeByUidlAsync (1)
Function ComGetSizeByUidlAsync String uidl Returns cComChilkatTask

Creates an asynchronous task to call the GetSizeByUidl method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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GetSmtpSslServerCert
Function ComGetSmtpSslServerCert Returns cComChilkatCert

If using SSL/TLS, this method returns the SMTP server's digital certificate used with the secure connection.

Returns null on failure

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GetUidls
Function ComGetUidls Returns cComCkStringArray

Returns the UIDLs of the emails currently stored on the POP3 server.

Returns null on failure

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GetUidlsAsync (1) (2)
Function ComGetUidlsAsync Returns cComChilkatTask

Creates an asynchronous task to call the GetUidls method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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IsSmtpDsnCapable
Function ComIsSmtpDsnCapable Returns Boolean

Contacts the SMTP server and determines if it supports the DSN (Delivery Status Notification) features specified by RFC 3461 and supported by the DsnEnvid, DsnNotify, and DsnRet properties. Returns True if the SMTP server supports DSN, otherwise returns False.

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IsSmtpDsnCapableAsync (1)
Function ComIsSmtpDsnCapableAsync Returns cComChilkatTask

Creates an asynchronous task to call the IsSmtpDsnCapable method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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IsUnlocked
Function ComIsUnlocked Returns Boolean

Returns True if the mailman is already unlocked, otherwise returns False.

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LastJsonData
Function ComLastJsonData Returns cComChilkatJsonObject
Introduced in version 9.5.0.69

Provides information about what transpired in the last method called on this object instance. For many methods, there is no information. However, for some methods, details about what occurred can be obtained by getting the LastJsonData right after the method call returns.

Returns null on failure

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LoadEml
Function ComLoadEml String emlFilename Returns cComChilkatEmail

Loads an email from a .eml file. (EML files contain the MIME source of an email.) Returns a null reference on failure.

Note: MHT files can be loaded into an email object by calling this method.

Returns null on failure

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LoadMbx
Function ComLoadMbx String mbxFileName Returns cComChilkatEmailBundle

Loads a .mbx file containing emails and returns an email bundle. If a Filter is present, only emails matching the filter are returned.

Returns null on failure

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LoadMime
Function ComLoadMime String mimeText Returns cComChilkatEmail

Creates and loads an email from a MIME string. Returns a null reference on failure.

Returns null on failure

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LoadQueuedEmail
Function ComLoadQueuedEmail String path Returns cComChilkatEmail
This method is deprecated. It will be removed in a future version.

Loads an email previously written to a Chilkat SMTPQ file via the SendQ/SendQ2 methods. When SendQ or SendQ2 writes an email to a queue directory, the .eml created contains special MIME header fields used by the SMTPQ process. These include fields to specify the SMTP server, login/password, whether the email should be sent signed and/or encrypted, etc. The SMTPQ process reads these fields and removes them before sending. This method will read the .eml and set the mailman properties to reflect the settings at the time when SendQ/SendQ2 was originally called. This makes it possible for you to write your own "SMTPQ" process that processes files from a queue directory and sends according to the SMTP hostname/login parameters specified by the program that queued the email.

Returns a null reference upon failure.

Returns null on failure

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LoadXmlEmail
Function ComLoadXmlEmail String filename Returns cComChilkatEmail

Loads an XML file containing a single email and returns an email object. Returns a null reference on failure.

Returns null on failure

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LoadXmlEmailString
Function ComLoadXmlEmailString String xmlString Returns cComChilkatEmail

Loads an XML string containing a single email and returns an email object. Returns a null reference on failure.

Returns null on failure

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LoadXmlFile
Function ComLoadXmlFile String filename Returns cComChilkatEmailBundle

Loads an XML file containing one or more emails and returns an email bundle. If a Filter is present, only emails matching the filter are returned. Returns a null reference on failure.

Returns null on failure

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LoadXmlString
Function ComLoadXmlString String xmlString Returns cComChilkatEmailBundle

Loads from an XML string containing emails and returns an email bundle. If a Filter is present, only emails matching the filter are returned.

Returns null on failure

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MxLookup
Function ComMxLookup String emailAddress Returns String

Performs a DNS MX lookup to return the mail server hostname based on an email address.

Returns null on failure

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MxLookupAll
Function ComMxLookupAll String emailAddress Returns cComCkStringArray

Performs a DNS MX lookup to return the list of mail server hostnames based on an email address. The primary server is at index 0. In most cases, there is only one mail server for a given email address.

Returns null on failure

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OpenSmtpConnection
Function ComOpenSmtpConnection Returns Boolean

Explicitly opens a connection to the SMTP server and authenticates (if a username/password was specified). Calling this method is optional because the SendEmail method and other mail-sending methods will automatically open the connection to the SMTP server if one is not already established.

Note: This method is the equivalent of calling SmtpConnect followed by SmtpAuthenticate.

Returns True for success, False for failure.

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OpenSmtpConnectionAsync (1)
Function ComOpenSmtpConnectionAsync Returns cComChilkatTask

Creates an asynchronous task to call the OpenSmtpConnection method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3Authenticate
Function ComPop3Authenticate Returns Boolean
Introduced in version 9.5.0.56

Authenticates with the POP3 server using the property settings such as PopUsername, PopPassword, etc. This method should only be called after a successful call to Pop3Connect.

Note 1: The Pop3BeginSession method both connects and authenticates. It is the equivalent of calling Pop3Connect followed by Pop3Authenticate.

Note 2: All methods that communicate with the POP3 server, such as FetchEmail, will automatically connect and authenticate if not already connected and authenticated.

Returns True for success, False for failure.

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Pop3AuthenticateAsync (1)
Function ComPop3AuthenticateAsync Returns cComChilkatTask
Introduced in version 9.5.0.56

Creates an asynchronous task to call the Pop3Authenticate method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3BeginSession
Function ComPop3BeginSession Returns Boolean

Call to explicitly begin a POP3 session. It is not necessary to call this method because any method requiring an established POP3 session will automatically connect and login if a session is not already open.

Important: All TCP-based Internet communications, regardless of the protocol (such as HTTP, FTP, SSH, IMAP, POP3, SMTP, etc.), and regardless of SSL/TLS, begin with establishing a TCP connection to a remote host:port. External security-related infrastructure such as software firewalls (Windows Firewall), hardware firewalls, anti-virus, at either source or destination (or both) can block the connection. If the connection fails, make sure to check all potential external causes of blockage.

Returns True for success, False for failure.

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Pop3BeginSessionAsync (1)
Function ComPop3BeginSessionAsync Returns cComChilkatTask

Creates an asynchronous task to call the Pop3BeginSession method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3Connect
Function ComPop3Connect Returns Boolean
Introduced in version 9.5.0.56

Explicitly establishes a connection to the POP3 server, which includes establishing a secure TLS channel if required, and receives the initial greeting. This method stops short of authenticating. The Pop3Authenticate method should be called after a successful call to this method.

Note 1: The Pop3BeginSession method both connects and authenticates. It is the equivalent of calling Pop3Connect followed by Pop3Authenticate.

Note 2: All methods that communicate with the POP3 server, such as FetchEmail, will automatically connect and authenticate if not already connected and authenticated.

Important: All TCP-based Internet communications, regardless of the protocol (such as HTTP, FTP, SSH, IMAP, POP3, SMTP, etc.), and regardless of SSL/TLS, begin with establishing a TCP connection to a remote host:port. External security-related infrastructure such as software firewalls (Windows Firewall), hardware firewalls, anti-virus, at either source or destination (or both) can block the connection. If the connection fails, make sure to check all potential external causes of blockage.

Returns True for success, False for failure.

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Pop3ConnectAsync (1)
Function ComPop3ConnectAsync Returns cComChilkatTask
Introduced in version 9.5.0.56

Creates an asynchronous task to call the Pop3Connect method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3EndSession
Function ComPop3EndSession Returns Boolean

Call to explicitly end a POP3 session. If the ImmediateDelete property is set to False, and emails marked for deletion will be deleted at this time.

Returns True for success, False for failure.

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Pop3EndSessionAsync (1)
Function ComPop3EndSessionAsync Returns cComChilkatTask

Creates an asynchronous task to call the Pop3EndSession method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3EndSessionNoQuit
Function ComPop3EndSessionNoQuit Returns Boolean

This method is identical to Pop3EndSession, but no "QUIT" command is sent. The client simply disconnects from the POP3 server.

This method should always return True.

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Pop3EndSessionNoQuitAsync (1)
Function ComPop3EndSessionNoQuitAsync Returns cComChilkatTask

Creates an asynchronous task to call the Pop3EndSessionNoQuit method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3Noop
Function ComPop3Noop Returns Boolean

Sends a NOOP command to the POP3 server. This may be a useful method to call periodically to keep a connection open, or to verify that the POP3 connection (session) is open and functioning.

Returns True for success, False for failure.

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Pop3NoopAsync (1)
Function ComPop3NoopAsync Returns cComChilkatTask

Creates an asynchronous task to call the Pop3Noop method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3Reset
Function ComPop3Reset Returns Boolean

Sends a RSET command to the POP3 server. If any messages have been marked as deleted by the POP3 server, they are unmarked. Calling Pop3Reset resets the POP3 session to a valid, known starting point.

Returns True for success, False for failure.

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Pop3ResetAsync (1)
Function ComPop3ResetAsync Returns cComChilkatTask

Creates an asynchronous task to call the Pop3Reset method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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Pop3SendRawCommand
Function ComPop3SendRawCommand String command String charset Returns String

Sends a raw command to the POP3 server and returns the POP3 server's response. If non-us-ascii characters are included in command, then charset indicates the charset to be used in sending the command (such as "utf-8", "ansi", "iso-8859-1", "Shift_JIS", etc.)

Returns null on failure

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Pop3SendRawCommandAsync (1)
Function ComPop3SendRawCommandAsync String command String charset Returns cComChilkatTask

Creates an asynchronous task to call the Pop3SendRawCommand method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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QuickSend
Function ComQuickSend String fromAddr String toAddr String subject String body String smtpServer Returns Boolean

A quick way to send an email to a single recipient without having to explicitly create an email object.

Returns True for success, False for failure.

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QuickSendAsync (1)
Function ComQuickSendAsync String fromAddr String toAddr String subject String body String smtpServer Returns cComChilkatTask

Creates an asynchronous task to call the QuickSend method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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RenderToMime
Function ComRenderToMime cComChilkatEmail email Returns String

When an email is sent by calling SendEmail, it is first "rendered" according to the values of the email properties and contents. It may be digitally signed, encrypted, values substituted for replacement patterns, and header fields "Q"or "B" encoded as needed based on the email. The RenderToMime method performs the rendering, but without the actual sending. The MIME text produced is exactly what would be sent to the SMTP server had SendEmail been called. (The SendEmail method is effectively the same as calling RenderToMime followed by a call to SendRendered.)

The rendered MIME string is returned on success.

Returns null on failure

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RenderToMimeBd
Function ComRenderToMimeBd cComChilkatEmail email cComChilkatBinData renderedMime Returns Boolean
Introduced in version 9.5.0.62

The same as RenderToMimeBytes, except the MIME is rendered into renderedMime. The rendered MIME is appended to renderedMime.

Returns True for success, False for failure.

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RenderToMimeBytes
Function ComRenderToMimeBytes cComChilkatEmail email Returns Variant

This method is the same as RenderToMime, but the MIME is returned in a byte array. If an email uses an 8bit or binary MIME encoding, then calling RenderToMime may introduce errors because it is not possible to return non-text binary data as a string. Therefore, calling RenderToMimeBytes is recommended over RenderToMime, unless it is assured that the email (MIME) does not use a binary encoding for non-text data.

Returns null on failure

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RenderToMimeSb
Function ComRenderToMimeSb cComChilkatEmail email cComChilkatStringBuilder renderedMime Returns Boolean
Introduced in version 9.5.0.62

The same as RenderToMime, except the MIME is rendered into renderedMime. The rendered MIME is appended to renderedMime.

Returns True for success, False for failure.

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SendBundle
Function ComSendBundle cComChilkatEmailBundle bundle Returns Boolean

Sends a bundle of emails. This is identical to calling SendEmail for each email in the bundle.

If an error occurs when sending one of the emails in the bundle, it will continue with each subsequent email until each email in the bundle has been attempted (unless a fatal error occurs, in which case the send is aborted).

Because it is difficult or impossible to programmatically identify which emails in the bundle failed and which succeeded, it is best to write a loop that sends each email separately (via the SendEmail method).

Returns True for success, False for failure.

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SendBundleAsync (1)
Function ComSendBundleAsync cComChilkatEmailBundle bundle Returns cComChilkatTask

Creates an asynchronous task to call the SendBundle method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SendEmail
Function ComSendEmail cComChilkatEmail email Returns Boolean

Sends a single email. The connection to the SMTP server will remain open so that a subsequent call to SendEmail (or other email-sending methods) can re-use the same connection. If any properties relating to the SMTP server are changed, such as SmtpHost, SmtpUsername, etc., then the next call to an email-sending method will automatically close the connection and re-establish a connection using the updated property settings.

Important: Some SMTP servers do not actually send the email until the connection is closed. In these cases, it is necessary to call CloseSmtpConnection for the mail to be sent. Most SMTP servers send the email immediately, and it is not required to close the connection.

GMail: If sending via smtp.gmail.com, then send with OAuth2 authentication if possible. Otherwise you will need to change your GMail account settings to allow for sending by less secure apps. See the links below.

Returns True for success, False for failure.

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SendEmailAsync (1)
Function ComSendEmailAsync cComChilkatEmail email Returns cComChilkatTask

Creates an asynchronous task to call the SendEmail method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SendMime
Function ComSendMime String fromAddr String recipients String mimeSource Returns Boolean

Provides complete control over the email that is sent. The MIME text passed in mimeSource (the MIME source of an email) is passed exactly as-is to the SMTP server. The recipients is a comma separated list of recipient email addresses. The fromAddr is the reverse-path email address. This is where bounced email (non-delivery reports) will be delivered. It may be different than the "From" header field in the mimeSource.

To understand how the fromAddr and recipients relate to the email addresses found in the MIME headers (FROM, TO, CC), see the link below entitled "SMTP Protocol in a Nutshell". The fromAddr is what is passed to the SMTP server in the "MAIL FROM" command. The recipients are the email addresses passed in "RCPT TO" commands. These are usually the same email addresses found in the MIME headers, but need not be (unless the SMTP server enforces policies that require them to be the same).

Returns True for success, False for failure.

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SendMimeAsync (1)
Function ComSendMimeAsync String fromAddr String recipients String mimeSource Returns cComChilkatTask

Creates an asynchronous task to call the SendMime method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SendMimeBd
Function ComSendMimeBd String fromAddr String recipients cComChilkatBinData mimeData Returns Boolean
Introduced in version 9.5.0.73

This method is the same as SendMimeBytes, except the MIME is passed in an object (mimeData) rather than explicitly passing the bytes.

Returns True for success, False for failure.

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SendMimeBdAsync (1)
Function ComSendMimeBdAsync String fromAddr String recipients cComChilkatBinData mimeData Returns cComChilkatTask
Introduced in version 9.5.0.73

Creates an asynchronous task to call the SendMimeBd method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SendMimeBytes
Function ComSendMimeBytes String fromAddr String recipients Variant mimeSource Returns Boolean

This method is the same as SendMime, except the MIME is passed in a byte array. This can be important if the MIME uses a binary encoding, or if a DKIM/DomainKey signature is included.

To understand how the fromAddr and recipients relate to the email addresses found in the MIME headers (FROM, TO, CC), see the link below entitled "SMTP Protocol in a Nutshell". The fromAddr is what is passed to the SMTP server in the "MAIL FROM" command. The recipients are the email addresses passed in "RCPT TO" commands. These are usually the same email addresses found in the MIME headers, but need not be (unless the SMTP server enforces policies that require them to be the same).

Returns True for success, False for failure.

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SendMimeBytesAsync (1)
Function ComSendMimeBytesAsync String fromAddr String recipients Variant mimeSource Returns cComChilkatTask

Creates an asynchronous task to call the SendMimeBytes method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SendMimeBytesQ
Function ComSendMimeBytesQ String from String recipients Variant mimeData Returns Boolean
This method is deprecated. It will be removed in a future version.

This method is the samem as SendMimeQ, except the MIME is passed in a byte array argument instead of a string argument.

Returns True for success, False for failure.

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SendMimeQ
Function ComSendMimeQ String fromAddr String recipients String mimeSource Returns Boolean
This method is deprecated. It will be removed in a future version.

Same as SendMime, except the email is written to the Chilkat SMTPQ's queue directory for background sending from the SMTPQ service.

Important: The SMTPQ functionality is deprecated and will be removed in a future version. The SMTPQ Windows Service Visual Studo project is available on GitHub at the link below. Users would need to build the project prior to using. Chilkat does not provide pre-built binaries for the SMTPQ Windows Service.

Returns True for success, False for failure.

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SendMimeToList
Function ComSendMimeToList String fromAddr String distListFilename String mimeSource Returns Boolean

Same as SendMime, but the recipient list is read from a text file (distListFilename) containing one email address per line.

Returns True for success, False for failure.

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SendMimeToListAsync (1)
Function ComSendMimeToListAsync String fromAddr String distListFilename String mimeSource Returns cComChilkatTask

Creates an asynchronous task to call the SendMimeToList method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SendQ
Function ComSendQ cComChilkatEmail email Returns Boolean
This method is deprecated. It will be removed in a future version.

Queues an email to be sent using the Chilkat SMTP queue service. This is the same as SendEmail, except the email is written to the SMTPQ's queue directory.

The email is written as a .eml to the SMTPQ's queue directory. The SMTP server hostname, login, password, and send-time parameters are saved as encrypted headers in the .eml. The SMTPQ service watches the queue directory. When a .eml file appears, it loads the .eml, extracts and removes the encrypted information from the header, and sends the email.

Note: When the Chilkat SMTPQ service is configured, the location of the queue directory is written to the registry. Because Chilkat SMTPQ is a 32-bit service, it is the 32-bit registry that is written. (Microsoft 64-bit systems have two separate registries -- one for 32-bit and one for 64-bit.) Therefore, if your application is a 64-bit app, the registry lookup for the queue directory will fail. You should instead call the SendQ2 method which allows for the queue directory to be explicitly specified.

Note: After calling this method, the filename of the .eml that was created will be available in the LastSendQFilename property.

Important: The SMTPQ functionality is deprecated and will be removed in a future version. The SMTPQ Windows Service Visual Studo project is available on GitHub at the link below. Users would need to build the project prior to using. Chilkat does not provide pre-built binaries for the SMTPQ Windows Service.

Returns True for success, False for failure.

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SendQ2
Function ComSendQ2 cComChilkatEmail email String queueDir Returns Boolean
This method is deprecated. It will be removed in a future version.

Same as SendQ, but the queue directory can be explicitly specified in a method argument.

Beginning with version 9.5.0.47, the queueDir can indicate the exact output filepath to be written. If queueDir specifies only the directory, then SendQ2 will automatically generate the output filename.

Important: The SMTPQ functionality is deprecated and will be removed in a future version. The SMTPQ Windows Service Visual Studo project is available on GitHub at the link below. Users would need to build the project prior to using. Chilkat does not provide pre-built binaries for the SMTPQ Windows Service.

Returns True for success, False for failure.

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SendToDistributionList
Function ComSendToDistributionList cComChilkatEmail emailObj cComCkStringArray recipientList Returns Boolean

Send the same email to a list of email addresses.

Returns True for success, False for failure.

More Information and Examples
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SendToDistributionListAsync (1)
Function ComSendToDistributionListAsync cComChilkatEmail emailObj cComCkStringArray recipientList Returns cComChilkatTask

Creates an asynchronous task to call the SendToDistributionList method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SetCSP
Function ComSetCSP cComChilkatCsp csp Returns Boolean

(Only applies to the Microsoft Windows OS) Sets the Cryptographic Service Provider (CSP) to be used for encryption or digital signing, or decryption / signature verification.

This is not commonly used becaues the default Microsoft CSP is typically appropriate. One instance where SetCSP is necessary is when using the Crypto-Pro CSP for the GOST R 34.10-2001 and GOST R 34.10-94 providers.

Returns True for success, False for failure.

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SetDecryptCert
Function ComSetDecryptCert cComChilkatCert cert Returns Boolean
Introduced in version 9.5.0.40

Explicitly specifies the certificate to be used for decrypting encrypted email.

Returns True for success, False for failure.

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SetDecryptCert2
Function ComSetDecryptCert2 cComChilkatCert cert cComPrivateKey privateKey Returns Boolean

Explicitly specifies the certificate and associated private key to be used for decrypting S/MIME encrypted email.

Note: In most cases, it is easier to call AddPfxSourceFile or AddPfxSourceData to provide the required cert and private key. On Windows systems where the certificate + private key has already been installed in the default certificate store, nothing needs to be done -- the mailman will automatically locate and use the required cert + private key.

Returns True for success, False for failure.

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SetPassword
Function ComSetPassword String protocol cComChilkatSecureString password Returns Boolean
Introduced in version 9.5.0.71

Provides a more secure way of setting either the POP3 or SMTP password. The protocol can be "pop3" or "smtp". When the protocol is "pop3", this is equivalent to setting the PopPassword property. When protocol is "smtp", this is equivalent to setting the SmtpPassword property.

Returns True for success, False for failure.

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SetSslClientCert
Function ComSetSslClientCert cComChilkatCert cert Returns Boolean

Sets the client-side certificate to be used with SSL connections. This is typically not required, as most SSL connections are such that only the server is authenticated while the client remains unauthenticated.

Returns True for success, False for failure.

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SetSslClientCertPem
Function ComSetSslClientCertPem String pemDataOrFilename String pemPassword Returns Boolean

Allows for a client-side certificate to be used for the SSL / TLS connection.

Returns True for success, False for failure.

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SetSslClientCertPfx
Function ComSetSslClientCertPfx String pfxFilename String pfxPassword Returns Boolean

Allows for a client-side certificate to be used for the SSL / TLS connection.

Returns True for success, False for failure.

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SmtpAuthenticate
Function ComSmtpAuthenticate Returns Boolean
Introduced in version 9.5.0.48

Authenticates with the SMTP server using the property settings such as SmtpUsername, SmtpPassword, etc. This method should only be called after a successful call to SmtpConnect.

Note 1: The OpenSmtpConnection method both connects and authenticates. It is the equivalent of calling SmtpConnect followed by SmtpAuthenticate.

Note 2: All methods that communicate with the SMTP server, such as SendEmail, will automatically connect and authenticate if not already connected and authenticated.

Returns True for success, False for failure.

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SmtpAuthenticateAsync (1)
Function ComSmtpAuthenticateAsync Returns cComChilkatTask
Introduced in version 9.5.0.48

Creates an asynchronous task to call the SmtpAuthenticate method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SmtpConnect
Function ComSmtpConnect Returns Boolean
Introduced in version 9.5.0.48

Explicitly establishes a connection to the SMTP server, which includes establishing a secure TLS channel if required, and receives the initial greeting. This method stops short of authenticating. The SmtpAuthenticate method should be called after a successful call to this method.

Note 1: The OpenSmtpConnection method both connects and authenticates. It is the equivalent of calling SmtpConnect followed by SmtpAuthenticate.

Note 2: All methods that communicate with the SMTP server, such as SendEmail, will automatically connect and authenticate if not already connected and authenticated.

Important: All TCP-based Internet communications, regardless of the protocol (such as HTTP, FTP, SSH, IMAP, POP3, SMTP, etc.), and regardless of SSL/TLS, begin with establishing a TCP connection to a remote host:port. External security-related infrastructure such as software firewalls (Windows Firewall), hardware firewalls, anti-virus, at either source or destination (or both) can block the connection. If the connection fails, make sure to check all potential external causes of blockage.

Returns True for success, False for failure.

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SmtpConnectAsync (1)
Function ComSmtpConnectAsync Returns cComChilkatTask
Introduced in version 9.5.0.48

Creates an asynchronous task to call the SmtpConnect method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SmtpNoop
Function ComSmtpNoop Returns Boolean

Sends a no-op to the SMTP server. Calling this method is good for testing to see if the connection to the SMTP server is working and valid. The SmtpNoop method will automatically establish the SMTP connection if it does not already exist.

Returns True for success, False for failure.

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SmtpNoopAsync (1)
Function ComSmtpNoopAsync Returns cComChilkatTask

Creates an asynchronous task to call the SmtpNoop method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SmtpReset
Function ComSmtpReset Returns Boolean

Sends an RSET command to the SMTP server. This method is rarely needed. The RSET command resets the state of the connection to the SMTP server to the initial state (so that the component can proceed with sending a new email). The SmtpReset method would only be needed if a mail-sending method failed and left the connection with the SMTP server open and in a non-initial state. (A situation that is probably not even possible with the Chilkat mail component.)

Returns True for success, False for failure.

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SmtpResetAsync (1)
Function ComSmtpResetAsync Returns cComChilkatTask

Creates an asynchronous task to call the SmtpReset method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SmtpSendRawCommand
Function ComSmtpSendRawCommand String command String charset Boolean bEncodeBase64 Returns String

Sends a raw command to the SMTP server and returns the SMTP server's response. If non-us-ascii characters are included in command, then charset indicates the charset to be used in sending the command (such as "utf-8", "ansi", "iso-8859-1", "Shift_JIS", etc.)

If bEncodeBase64 is True, then the response is returned in Base64-encoded format. Otherwise the raw response is returned.

Returns null on failure

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SmtpSendRawCommandAsync (1)
Function ComSmtpSendRawCommandAsync String command String charset Boolean bEncodeBase64 Returns cComChilkatTask

Creates an asynchronous task to call the SmtpSendRawCommand method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SshAuthenticatePk
Function ComSshAuthenticatePk String sshLogin cComChilkatSshKey sshUsername Returns Boolean

Authenticates with the SSH server using public-key authentication. The corresponding public key must have been installed on the SSH server for the sshLogin. Authentication will succeed if the matching sshUsername is provided.

Important: When reporting problems, please send the full contents of the LastErrorText property to support@chilkatsoft.com.

Returns True for success, False for failure.

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SshAuthenticatePkAsync (1)
Function ComSshAuthenticatePkAsync String sshLogin cComChilkatSshKey sshUsername Returns cComChilkatTask

Creates an asynchronous task to call the SshAuthenticatePk method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SshAuthenticatePw
Function ComSshAuthenticatePw String sshLogin String sshPassword Returns Boolean

Authenticates with the SSH server using a sshLogin and sshPassword.

An SSH tunneling (port forwarding) session always begins by first calling SshTunnel to connect to the SSH server, then calling either AuthenticatePw or AuthenticatePk to authenticate.

Note: Once the SSH tunnel is setup by calling SshTunnel and SshAuthenticatePw (or SshAuthenticatePk), all underlying communcations with the POP3 or SMTP server use the SSH tunnel. No changes in programming are required other than making two initial calls to setup the tunnel.

Important: When reporting problems, please send the full contents of the LastErrorText property to support@chilkatsoft.com.

Returns True for success, False for failure.

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SshAuthenticatePwAsync (1)
Function ComSshAuthenticatePwAsync String sshLogin String sshPassword Returns cComChilkatTask

Creates an asynchronous task to call the SshAuthenticatePw method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SshCloseTunnel
Function ComSshCloseTunnel Returns Boolean

Closes the SSH tunnel for SMTP or POP3.

Returns True for success, False for failure.

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SshCloseTunnelAsync (1)
Function ComSshCloseTunnelAsync Returns cComChilkatTask

Creates an asynchronous task to call the SshCloseTunnel method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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SshOpenTunnel
Function ComSshOpenTunnel String sshHostname Integer sshPort Returns Boolean
Introduced in version 9.5.0.50

Connects to an SSH server and creates a tunnel for SMTP or POP3. The sshHostname is the hostname (or IP address) of the SSH server. The sshPort is typically 22, which is the standard SSH port number.

An SSH tunneling (port forwarding) session always begins by first calling SshTunnel to connect to the SSH server, followed by calling either SshAuthenticatePw or SshAuthenticatePk to authenticate.

Note: Once the SSH tunnel is setup by calling SshOpenTunnel and SshAuthenticatePw (or SshAuthenticatePk), all underlying communcations with the SMTP or POP3 server use the SSH tunnel. No changes in programming are required other than making two initial calls to setup the tunnel.

Important: All TCP-based Internet communications, regardless of the protocol (such as HTTP, FTP, SSH, IMAP, POP3, SMTP, etc.), and regardless of SSL/TLS, begin with establishing a TCP connection to a remote host:port. External security-related infrastructure such as software firewalls (Windows Firewall), hardware firewalls, anti-virus, at either source or destination (or both) can block the connection. If the connection fails, make sure to check all potential external causes of blockage.

Returns True for success, False for failure.

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SshOpenTunnelAsync (1)
Function ComSshOpenTunnelAsync String sshHostname Integer sshPort Returns cComChilkatTask
Introduced in version 9.5.0.50

Creates an asynchronous task to call the SshOpenTunnel method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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TransferMail
Function ComTransferMail Returns cComChilkatEmailBundle

Downloads and removes all email from a POP3 server. A bundle containing the emails is returned. A null reference is returned on failure.

Returns null on failure

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TransferMailAsync (1) (2)
Function ComTransferMailAsync Returns cComChilkatTask

Creates an asynchronous task to call the TransferMail method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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TransferMultipleMime
Function ComTransferMultipleMime cComCkStringArray uidlArray Returns cComCkStringArray

Same as FetchMultipleMime except that the downloaded emails are also deleted from the server. Returns a null reference on failure.

Returns null on failure

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TransferMultipleMimeAsync (1) (2)
Function ComTransferMultipleMimeAsync cComCkStringArray uidlArray Returns cComChilkatTask

Creates an asynchronous task to call the TransferMultipleMime method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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UnlockComponent
Function ComUnlockComponent String code Returns Boolean

Unlocks the component. This must be called once at the beginning of your program (or ASP / ASP.NET page). It is very fast and has negligible overhead. An arbitrary string, such as "Hello World" may be passed to automatically begin a fully-functional 30-day trial.

A valid purchased unlock code for this object will always included the substring "MAIL", or can be a Bundle unlock code.

Returns True for success, False for failure.

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UseCertVault
Function ComUseCertVault cComChilkatXmlCertVault vault Returns Boolean
Introduced in version 9.5.0.40

Adds an XML certificate vault to the object's internal list of sources to be searched for certificates and private keys when encrypting/decrypting or signing/verifying. Unlike the AddPfxSourceData and AddPfxSourceFile methods, only a single XML certificate vault can be used. If UseCertVault is called multiple times, only the last certificate vault will be used, as each call to UseCertVault will replace the certificate vault provided in previous calls.

Returns True for success, False for failure.

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UseSsh
Function ComUseSsh cComChilkatSsh ssh Returns Boolean
Introduced in version 9.5.0.55

Uses an existing SSH tunnel for the connections to the POP3 andSMTP servers. This method is identical to the UseSshTunnel method, except the SSH connection is obtained from an SSH object instead of a Socket object.

Uses an existing SSH tunnel. This is useful for sharing an existing SSH tunnel connection wth other objects. (SSH is a protocol where the tunnel contains many logical channels. SMTP and POP3 connections can exist simultaneously within a single SSH tunnel as SSH channels.)

Returns True for success, False for failure.

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UseSshTunnel
Function ComUseSshTunnel cComChilkatSocket tunnel Returns Boolean
Introduced in version 9.5.0.50

Uses an existing SSH tunnel. This is useful for sharing an existing SSH tunnel connection wth other objects. (SSH is a protocol where the tunnel contains many logical channels. SMTP and POP3 connections can exist simultaneously within a single SSH tunnel as SSH channels.)

Returns True for success, False for failure.

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VerifyPopConnection
Function ComVerifyPopConnection Returns Boolean

Return True if a TCP/IP connection can be established with the POP3 server, otherwise returns False.

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VerifyPopConnectionAsync (1)
Function ComVerifyPopConnectionAsync Returns cComChilkatTask

Creates an asynchronous task to call the VerifyPopConnection method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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VerifyPopLogin
Function ComVerifyPopLogin Returns Boolean

Return True if a TCP/IP connection and login is successful with the POP3 server. Otherwise return False.

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VerifyPopLoginAsync (1)
Function ComVerifyPopLoginAsync Returns cComChilkatTask

Creates an asynchronous task to call the VerifyPopLogin method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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VerifyRecips
Function ComVerifyRecips cComChilkatEmail email cComCkStringArray badAddrs Returns Boolean

Initiates sending an email, but aborts just after passing all recipients (TO, CC, BCC) to the SMTP server. This allows your program to collect email addresses flagged as invalid by the SMTP server.

Important: Please read this blog post before using this method: http://www.cknotes.com/?p=249

Returns True for success, False for failure.

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VerifyRecipsAsync (1)
Function ComVerifyRecipsAsync cComChilkatEmail email cComCkStringArray badAddrs Returns cComChilkatTask

Creates an asynchronous task to call the VerifyRecips method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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VerifySmtpConnection
Function ComVerifySmtpConnection Returns Boolean

Return True if a TCP/IP connection can be established with the SMTP server, otherwise returns False.

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VerifySmtpConnectionAsync (1)
Function ComVerifySmtpConnectionAsync Returns cComChilkatTask

Creates an asynchronous task to call the VerifySmtpConnection method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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VerifySmtpLogin
Function ComVerifySmtpLogin Returns Boolean

Return True if a TCP/IP connection and login is successful with the SMTP server. Otherwise returns False.

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VerifySmtpLoginAsync (1)
Function ComVerifySmtpLoginAsync Returns cComChilkatTask

Creates an asynchronous task to call the VerifySmtpLogin method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)

Returns null on failure

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