6 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Weird backscatter...
FromSent OnAttachments
Chris PetersenFeb 18, 2007 1:35 am 
Sam VarshavchikFeb 18, 2007 5:42 am 
Chris PetersenFeb 19, 2007 12:57 am 
Sam VarshavchikFeb 19, 2007 5:36 am 
Chris PetersenFeb 20, 2007 12:01 pm 
Sam VarshavchikFeb 20, 2007 3:13 pm 
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Subject:Re: [courier-users] Weird backscatter bounceActions...
From:Sam Varshavchik (mrs@courier-mta.com)
Date:Feb 18, 2007 5:42:52 am
List:net.sourceforge.lists.courier-users

Chris Petersen writes:

After thinking that there was something wrong with one of my credit card companies' mail server, I noticed the following in my maillog:

Feb 12 09:17:37 mail courierd: newmsg,id=00164819.45D0A131.00001C49: dns;
localhost (localhost [127.0.0.1]) Feb 12 09:17:37 mail courierd:
started,id=00164819.45D0A131.00001C49,from=<>,module=esmtp,host=alerts.chase.com,addr=<Cha@alerts.chase.com> Feb 12 09:17:37 mail courieresmtp:
id=00164819.45D0A131.00001C49,from=<>,addr=<Cha@alerts.chase.com>: 250
Backscatter bounce dropped. Feb 12 09:17:37 mail courieresmtp:
id=00164819.45D0A131.00001C49,from=<>,addr=<Cha@alerts.chase.com>,success:
delivered: backscatter bounce dropped Feb 12 09:17:37 mail courieresmtp:
id=00164819.45D0A131.00001C49,from=<>,addr=<Cha@alerts.chase.com>,status:
success Feb 12 09:17:37 mail courierd: completed,id=00164819.45D0A131.00001C49

For now, I've set BOFHSUPPRESSBACKSCATTER=none in bofh to see if I can get a copy of the actual message (is there anything else I can do, or maybe a way to whitelist this specific address so I don't have to completely disable backscatter suppression?).

I just wanted to see if anyone else has run into this or a similar issue. The timing of these messages corresponds directly with non-bounce messages (specifically, the "your bill is due in X days" or "we have mailed out your statement" type emails), so I'm concerned that there might be a glitch in courier's backscatter detection (or chase.com is screwing something up in their message headers).

No glitch. It's working as intended. Now, find the reason from the preceding bounce, and fix it. You're accepting mail, but during local delivery the mail bounces, and gets suppressed as backscatter -- and rightfully so.