Quoting Certainty Tech-Ed <[EMAIL PROTECTED]>:
Through watching the logs, I noticed scanning of emails for delivery to users that don't exist on my system. And when a spammer decides to attach my domain with random email addresses, it really kills my system.
I was wondering if there is any way for QS to test to make sure the email will actually go to a real account before scanning it. If the account doesn't exist, then just let it go (and eventually bounce). This would save huge amounts of CPU and RAM.
Is this just not possible?
-Dan
This is usually done by qmail-smtpd before it gets to Q-S. The way you do it depends on how your system is configured. I use vpopmail as the final delivery agent so I have patched my qmail-smtpd with the chkuser patch so that it consults vpopmail to determine if the account exists and is active before accepting the message.
-- Ed.
Do you have a patch available? Or a link? I use vpopvmail as well.
-Dan
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