[Exim] Double Delivery

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Szerző: Ron McKeating
Dátum:  
Címzett: Exim-Users (E-mail)
Tárgy: [Exim] Double Delivery
Exim is innocent in this but was being blamed. Just wondered if any of
you know of this problem, Here goes

A user of ours claimed we were delivering his email twice to all the
recipients, both local and off campus. This did not happen all the time.
I got him to tell a recipient to save both copies and had a look at the
headers. The first copy was fine delivered by us. The second copy had a
helo from some remote machine. After going though the headers it appears
that one of the recipients was using Microsoft SMTPSVC and instead of
just delivering to the user on that machine took it into its tiny little
head to deliver to everybody else in the To: line. So all recipients got
one genuine copy from our mail server (exim), and then a second copy
from the rogue microsoft machine.

This is OT but I thought it fair to bring it to your attention as our
exim servers were being blamed for the double delivery.

Here are the bowdlerized headers

Received: from [xxx.125.1.193] (helo=xxx.lut.ac.uk)
        by yyy.lut.ac.uk with esmtp (Exim 4.30)
        id 1AyZ3A-0000B1-5h; Wed, 03 Mar 2004 16:16:48 +0000
Received: from [81.137.206.127] (helo=bofficeserver.weldonroad.tmat.com)
        by xxx.lut.ac.uk with esmtp (Exim 4.30)
        id 1AyZ2w-0003kI-VL; Wed, 03 Mar 2004 16:16:35 +0000
Received: from bofficeserver.weldonroad.tmat.com ([10.0.0.2]) by
bofficeserver.weldonroad.tmat.com with Microsoft SMTPSVC(5.0.2195.6713);
         Wed, 3 Mar 2004 16:15:28 +0000
Received: by bofficeserver.weldonroad.tmat.com (Microsoft Connector for
POP3 Mailboxes 5.00.2195) with SMTP (Global POP3 Download)
         id MSG03032004-161520-676.MMD@???; Wed, 3 Mar
2004 16:15:20 -0000
Received: from [217.151.97.178] (helo=rack1.i-a.co.uk)
        by tantalum.btinternet.com with esmtp (Exim 3.22 #25)
        id 1AyYxA-0005E9-00
        for industrial.tmat@???; Wed, 03 Mar 2004 16:10:36
+0000
Received: from zzz.lut.ac.uk (zzz.lut.ac.uk [zzz.125.1.226])
        by rack1.i-a.co.uk (8.11.6/8.11.6) with ESMTP id i23GAXb13571
        for <nfalle@???>; Wed, 3 Mar 2004 16:10:33 GMT
Received: from [www.125.189.81] (helo=pc2000hupsg)



Ron

--
Ron McKeating
Senior IT Services Specialist
Internet Services and Software Solutions
Loughborough University
01509 222329