This may be a question for the users list, but I can't seem to get the confirmation email to arrive and I'm a little desperate at this point.
One fo the domains that I host is receiving an insane distributed brute force denial of service attack. The gist is that Postfix accepts mail for ANY users (after sqlgrey) and then passes it through Amavis to Spamassassin, before it reaches dbmail. Does anyone have a suggestion on denying these emails to invalid users "help" "test" "terms" "etc" "iraqcnn" before Amavis and Spamassassin start chewing up all available resources?
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