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Old 11-22-2006, 11:19 AM   #1
Registered: Nov 2004
Location: ontario, canada
Distribution: debian
Posts: 52

Rep: Reputation: 15
Question Need to stop bounce back emails with exim.

Hey guys,

hope you can help because googling to death didn't so far. Here's my issue. I get allot of s-p-a-m sent to my server, spamassassin is doing a great job at catching them. But once in a while someone (spam) will try to send to someone that isn't part of my network and then by default exim when it can't find the user ('Unknown User') it automatically sends an error message. But the problem is that it's usually trying to send it back to the spammer, which obviously does not usually resolve and then stays in my 'mailq' for the determined amount of time I have set.

I need to stop this nosense. Can anyone assist me on how to stop exim from sending bounce back emails totally. I do not want to reply to 'unknown user' issues...

Please help??? thanks,

Btw I'm using exim 3.xx
Old 11-23-2006, 09:47 AM   #2
Registered: Nov 2004
Location: ontario, canada
Distribution: debian
Posts: 52

Original Poster
Rep: Reputation: 15
Angry Still no help?


Anyone have thought on my thread... ideas... suggestions, anytthing...

I am more than whilling to supply more information if requested....

help.. thanks though :P
Old 01-10-2010, 03:45 PM   #3
LQ Newbie
Registered: Jan 2010
Posts: 2

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One way to prevent these backscatter bounces: add
errors_to = postmaster
to each router section. This causes bounces to be delivered to postmaster (eg: delivered locally to /var/mail/postmaster ) rather than to the spoofed From: address. You can then sift through them or just delete them at your leisure.


auto, debian, error, exim, reply

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