[BlueOnyx:19115] Re: SMTP Auth problem

Dudi Goldenberg dudi at kolcore.com
Mon Feb 8 16:22:09 -05 2016


>I have two servers where some users have all of a sudden have started having total SMTP Auth failure.

What kind of errors are they getting? What does your logs show?

If they use dynamic IPs, I'd suspect that dirty IPs are blocked by RBLs and the likes.

Do you see their IP in iptables/Dfix/fail2ban etc.?

Regards,

D.
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