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Question   I get a Socket Error: 10051 when trying to send mail!
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I get a Socket Error: 10051 when trying to send mail!
The socket error, 10051, translates to 'Network is unreachable.' This is often the case if your ISP blocks sending mail (blocking port 25) through anyone other than their OWN smtp server.

Please see this article.

Last updated: Aug 22, 2003.