On 24 Feb 2011, at 10:04 AM, Ehle, Roland wrote: > Exchange uses Message-ID set by the originating mail server to recognize > duplicates. The Message-ID is part of the header of each mail. Exchange does > not reject the message, but suppresses delivery to the destination mailbox, > if a duplicate is found. The Exchange Log says "Duplicate". > > So, it is not the Message-ID set by the MailScanner Gateway but the > Message-ID of the originating mail server. > > Example headers: > > Received: from mail.tdss.co.za (mail.tdss.co.za [174.136.108.85]) by > mx1.mailmind.de (8.13.8/8.13.8) with ESMTP id p1O5Vxfb001429 > (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) > for > <[email protected]>; Thu, 24 Feb 2011 06:32:01 +0100 > Received: from dexter.tdss.co.za (dexter.tdss.co.za [127.0.0.1]) by > mail.tdss.co.za (Postfix) with ESMTP id 826721A44DE; Thu, 24 Feb 2011 > 07:31:57 +0200 (SAST) > X-DKIM: Sendmail DKIM Filter v2.8.3 mail.tdss.co.za 826721A44DE > X-Original-To: [email protected] > Delivered-To: [email protected] > Received: from [192.168.1.50] (196-215-121-81.dynamic.isadsl.co.za > [196.215.121.81]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) > (No > client certificate requested) by mail.tdss.co.za (Postfix) with ESMTP id > BFF171A44CA for <[email protected]>; Thu, 24 Feb 2011 07:31:53 +0200 > (SAST) > X-DKIM: Sendmail DKIM Filter v2.8.3 mail.tdss.co.za BFF171A44CA > MIME-Version: 1.0 (Apple Message framework v1082) > From: Andrew Colin Kissa <[email protected]> > In-Reply-To: <[email protected]> > Date: Thu, 24 Feb 2011 07:31:47 +0200 > Message-ID: <[email protected]> > > ^^^^^It is this line in the header, Exchange uses to recognize duplicates.
That is exactly what that patch is meant to remove, a new message id then gets inserted by the MTA in my tests on my side that actually happens one thing that i noticed though is the way the message id header is may vary in different MTA's so it is possible that in your case the message id does not actually get stripped out (That is why a wanted examples) i already committed a regular expression based replacement in the 1.1.o tree will do the same for 1.0.x just now and send you the patch to test. -- Baruwa - www.baruwa.org _______________________________________________ Baruwa mailing list [email protected] http://lists.baruwa.org/mailman/listinfo/baruwa
