Re: [exim] spam problems

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Author: Dan_Mitton
Date:  
To: ROGERS Richard
CC: exim-users, Michal Lisowski
Subject: Re: [exim] spam problems
First, I completely agree with Richard, you need to be rejecting unknown
recipients and/or discard'ing (eating) unwanted messages. I believe this
kind of unwanted bouncing is generally called back scatter. You might
want to google that for some more ideas.

Secondly, one additional thing that might help get you off some of the
BL's is to send bounce messages ( i.e. sender=: ) using a different IP
address then your primary MTA's address. This way your bounce IP might
get BL'ed, but your "normal" IP should still be good. But, only do this
after you have fixed the first point above.

Dan



Sent by:        exim-users-bounces@???
To:     "Michal Lisowski" <lisu87@???>, <exim-users@???>
cc:      (bcc: Dan Mitton/YD/RWDOE)
Subject:        Re: [exim] spam problems
LSN: Not Relevant
User Filed as: Not a Record


You need to be rejecting when the recipient is unknown, not bouncing.

Exactly how you configure Exim to do this will depend on your mail server
architecture.

Regards

Richard

--
Richard Rogers
IT Development and Innovation Manager
Information Services, Staffordshire University
Tel. ext. 3785 or 4318

-----Original Message-----
From: exim-users-bounces@??? [mailto:exim-users-bounces@exim.org] On
Behalf Of Michal Lisowski
Sent: 19 March 2009 09:24
To: exim-users@???
Subject: [exim] spam problems

Hi

Recently one of my servers started to send a lot of spam. I've installed
assp deluxe application on it, but it didn't help me with outgoing spam
messages. I think there is a problem with spam bouncing.
when spammer sends messages to inexistent user on my machine server just
bounce the message with whole header and body. I think that's the reason
my server is on some BLs.

can anybody tell me how to configure exim to stop bounce messages?

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