full-disclosure - Double copies

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From: sam at fireburst.co.uk (Sam Sharpe)
Subject: Double copies

Dear all,

I too am getting double copies of some of the list postings. I use 
procmail (with lockfiles) to sort my mail, so I definitely have no 
misconfigured outlook rules which could be to blame.

Additionally, I have a procmail/formail rule to discard messages with 
the same message id to avoid duplicates... This may be the cause of the 
intermittant nature of the duplication i have noticed.

With full apologies to Jason as I am only using his mails as the most 
recent example, see attached below:

Note that the MSGIDs in each case are unique, leading me to believe that 
the mail was *sent* twice rather than delivered twice - My local 
procmail would never touch a MSGID, so the problem cannot be mine.

I also note that the Mail Server at netsys.com sent the first mail 
through my primary MX and the second mail through my secondary MX - why 
it felt the need to do this is anyone's guess. (and before you ask, I'm 
not subscribed to the list twice)

However the fact this does not affect everyone is something I am at a 
loss to explain, but I'm providing full information so you guys can't 
complain (although doubtless someone will) - maybe someone could 
diagnose the problem...

--
Sam

Mail 1 Headers: (with irrelevant headers removed)
-----------------------------------------------------
Return-Path: <full-disclosure-admin@...ts.netsys.com>
Delivered-To: <my address>
Received: from netsys.com (199.201.233.10)
   by ukshells-punt-1.mail.uksolutions.net with SMTP; 24 Feb 2004 
21:20:36 -0000
Received: from NETSYS.COM (localhost [127.0.0.1])
	by netsys.com (8.11.6p2-2003-09-16/8.11.6) with ESMTP id i1OKrP302224;
	Tue, 24 Feb 2004 15:53:25 -0500 (EST)
Received: from sncormail10.usa.vartec.com (host254.excel.com 
[206.223.103.254])
	by netsys.com (8.11.6p2-2003-09-16/8.11.6) with ESMTP id i1OGSnP12769
	for <full-disclosure@...ts.netsys.com>; Tue, 24 Feb 2004 11:28:50 -0500 
(EST)
Received: by sncormail10.usa.vartec.com with Internet Mail Service 
(5.5.2657.72)
	id <10R5RZ2R>; Tue, 24 Feb 2004 10:28:47 -0600
Received: from yahoo.com (BM2K0076 [172.20.105.13]) by 
snvicmail03.usa.vartec.com with SMTP (Microsoft Exchange Internet Mail 
Service Version 5.5.2657.72)
	id 10K25AZ1; Tue, 24 Feb 2004 10:28:42 -0600
From: Jason Brewer <jason's address>
To: Full Disclosure <full-disclosure@...ts.netsys.com>
Message-ID: <403B7BB0.1030807@...oo.com>

Mail 2 HEaders (with irrelevant headers removed)
------------------------------------------------------
Return-Path: <full-disclosure-admin@...ts.netsys.com>
X-Original-To: <my address>
Delivered-To: <my address>
Received: from unknown (HELO netsys.com) (199.201.233.10)
   by ukshells-punt-2.mail.uksolutions.net with SMTP; 24 Feb 2004 
21:09:19 -0000
Received: from NETSYS.COM (localhost [127.0.0.1])
	by netsys.com (8.11.6p2-2003-09-16/8.11.6) with ESMTP id i1OKnQ301078;
	Tue, 24 Feb 2004 15:49:26 -0500 (EST)
Received: from sncormail10.usa.vartec.com (host254.excel.com 
[206.223.103.254])
	by netsys.com (8.11.6p2-2003-09-16/8.11.6) with ESMTP id i1OGi3P18204
	for <full-disclosure@...ts.netsys.com>; Tue, 24 Feb 2004 11:44:03 -0500 
(EST)
Received: by sncormail10.usa.vartec.com with Internet Mail Service 
(5.5.2657.72)
	id <10R5RZ92>; Tue, 24 Feb 2004 10:44:02 -0600
Received: from yahoo.com (BM2K0076 [172.20.105.13]) by 
snvicmail03.usa.vartec.com with SMTP (Microsoft Exchange Internet Mail 
Service Version 5.5.2657.72)
	id 10K25AZM; Tue, 24 Feb 2004 10:43:57 -0600
From: Jason Brewer <jason's address>
To: Full Disclosure <full-disclosure@...ts.netsys.com>
Message-ID: <403B7F44.5060005@...oo.com>