The Chilkat Mail calls are stateless in that connections to SMTP / POP3 servers
are opened and closed in a single method call.
The SendBundle method allows you to send multiple emails in one SMTP connection.
The VerifySmtpConnection method follows the same rules for statelessness - it simply
checks to see if a connection can be made to the SMTP server and then disconnects.
This method might be used to help diagnose a failure -- you can discern between a network
connection problem and a login/password problem by calling both VerifySmtpConnection
and VerifySmtpLogin.
Because the calls are stateless, you'll find methods such as FetchMultiple or DeleteMultiple
to work with sets of UIDLs on POP3 servers in one POP3 session. You would want to use these
methods instead of looping over UIDLs and calling DeleteByUidl for each (as an example).
