I found swaks a very good tool for debugging SMTP in its various incarnations (ESMTP, SMTP-auth, SMTP-with-TLS). As a bonus, it's even written in Perl! I use it in some tests against my vmail setup to verify that mail gets accepted and rejected as I expect it.

In reply to Re: Using Net::SMTP with GoDaddy's Relay Server by Corion
in thread Using Net::SMTP with GoDaddy's Relay Server by markhunnibell

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