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Index of Chilkat Blog Posts

August 9, 2007

ISP Blocks after Sending N Consecutive Emails

I notice that I cannot send up to 20 consecutives email.
I doubt that my web provider block it or my outlook???
I would like to make sure that we do not have a special thing to do to send up to 20 consecutive emails.

This blog post:
talks about SMTP connections. Oddly enough, it talks about minimizing SMTP connnections. However, in this case I think you want to specifically close and re-open the SMTP connection every N messages to satisfy your ISP’s restrictions. You can call the CloseSmtpConnection and OpenSmtpConnection methods to do it. Actually, you only need to call CloseSmtpConnection every N messages. The "open" happens automatically within SendEmail (or other methods) if the connection is not open…

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