SMTPDiag – troubleshooting email issues

SMTPDiag is a handy tool for tracking down SMTP based issues.  I recently used in a newsgroup posting that was helpful along with a few other times at   It is definitely one of those tools worth having if you have to troubleshoot email issues. 

Bernard Cheah posting is helpful also.

One thought on “SMTPDiag – troubleshooting email issues”

  1. We are using 2.0 with C#, i am getting following error, give me solutions.

    The connection was dropped from the remote server SMTP


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