[rt-users] What's that Sender: header, and how do I make it go away?
Darren Nickerson
darren at dazza.org
Wed Feb 20 13:32:00 EST 2002
>>>>> On Wed, 20 Feb 2002,"Bruce" == Bruce Campbell wrote:
Bruce> On Wed, 20 Feb 2002, Vivek Khera wrote:
+> > >>>> "DN" == Darren Nickerson <darren at dazza.org> writes:
DN> Definitely an annoying Sender: header creeping its way in there.
+> The Mail::Internet module insists on inserting this header. Author is
+> not interested in changing it since others rely on it being there.
+> Perhaps if enough people tell him why it is bad, he'll remove it.
Bruce> Or use sendmailpipe as a delivery mechanism (see config.pm)
Thanks for the feedback everyone. I needed to dig into this a bit deeper to
determine what was going on, as it turned out. To make a long story short, my
testbed was tainted by fetchmail, which was messing with headers. In the end,
using 'sendmailpipe' and Bruce suggested did the trick.
So the FAQ:
http://fsck.com/rtfm/article.html?id=5#109
Should probably be revised to:
------------------cut here------------
postfix and sender
As long as you've set the following in config.pm:
$MailCommand = 'sendmailpipe';
$SendmailArguments="-oi -t";
Postfix shouldn't have this problem, as it adds a UID to the Received header instead of setting Sender. For example:
Received: by some.company.com (Postfix, from userid 99)
------------------cut here------------
In case anyone's interested in the gory details, read below. Otherwise, we're
finished here ;-)
-Darren
================ < GORY DETAILS > ====================
The first problem is that my testbed was tainted. Either fetchmail or my local
(older) copy of Postfix was eating the headers, and messing with the Sender:
line. Here's how the messages looked in their pure form, on the imap spool:
=================================
| With:
|
| $MailCommand = 'sendmail';
| $SendmailArguments="-oi";
=================================
autoreply
Return-Path: <nobody at polaris.dazza.org>
X-Sieve: cmu-sieve 2.0
Received: from polaris.dazza.org (polaris.dazza.org [216.152.199.7])
by mail.company.com (Postfix) with ESMTP id 1708CB452A
for <someone at company.com>; Wed, 20 Feb 2002 12:46:49 -0500 (EST)
Received: by polaris.dazza.org (Postfix, from userid 99)
id 1C9EC254118; Wed, 20 Feb 2002 09:46:43 -0800 (PST)
Message-Id: <rt-10322-16743.13.9956445151888 at TPC.INT Support>
From: TPC.INT Support <support at info.tpc.int>
RT-Ticket: TPC.INT Support #10322
X-Mailer: Perl5 Mail::Internet v1.43
Reply-To: support at info.tpc.int
RT-Originator: someone at company.com
X-RT-Loop-Prevention: TPC.INT Support
Content-Disposition: inline
Content-Type: text/plain
Subject: [TPC.INT Support #10322] AutoReply: [no subject]
In-Reply-To: <rt-10322 at TPC.INT Support>
Managed-BY: Request Tracker 2.0.11 (http://www.fsck.com/projects/rt/)
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: binary
To: someone at company.com
Sender: Nobody <support_tpc at polaris.dazza.org>
Date: Wed, 20 Feb 2002 09:46:43 -0800 (PST)
web transaction
Return-Path: <apache at polaris.dazza.org>
X-Sieve: cmu-sieve 2.0
Received: from polaris.dazza.org (polaris.dazza.org [216.152.199.7])
by mail.company.com (Postfix) with ESMTP id A9BA0B452A
for <someone at company.com>; Wed, 20 Feb 2002 12:53:37 -0500 (EST)
Received: by polaris.dazza.org (Postfix, from userid 48)
id B5A8B25411A; Wed, 20 Feb 2002 09:53:36 -0800 (PST)
Message-Id: <rt-10322-16745.2.86847596503279 at TPC.INT Support>
From: Darren Nickerson via RT <support at info.tpc.int>
RT-Ticket: TPC.INT Support #10322
X-Mailer: Perl5 Mail::Internet v1.43
Reply-To: support at info.tpc.int
RT-Originator: tpcadmin at info.tpc.int
X-RT-Loop-Prevention: TPC.INT Support
Content-Disposition: inline
Content-Type: text/plain
Subject: [TPC.INT Support #10322] [no subject]
In-Reply-To: <rt-10322 at TPC.INT Support>
Managed-BY: Request Tracker 2.0.11 (http://www.fsck.com/projects/rt/)
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: binary
To: someone at company.com
Sender: Apache <apache at polaris.dazza.org>
Date: Wed, 20 Feb 2002 09:53:36 -0800 (PST)
================================
| With:
|
| $MailCommand = 'sendmailpipe';
| $SendmailArguments="-oi -t";
=================================
autoreply
Return-Path: <nobody at polaris.dazza.org>
X-Sieve: cmu-sieve 2.0
Received: from polaris.dazza.org (polaris.dazza.org [216.152.199.7])
by mail.company.com (Postfix) with ESMTP id C3E60B452A
for <someone at company.com>; Wed, 20 Feb 2002 12:55:56 -0500 (EST)
Received: by polaris.dazza.org (Postfix, from userid 99)
id 0AED4254120; Wed, 20 Feb 2002 09:55:55 -0800 (PST)
MIME-Version: 1.0
X-Mailer: MIME-tools 5.411 (Entity 5.404)
Subject: [TPC.INT Support #10324] AutoReply: test
From: TPC.INT Support <support at info.tpc.int>
Reply-To: support at info.tpc.int
In-Reply-To: <rt-10324 at TPC.INT Support>
Message-Id: <rt-10324-16748.10.2722692953371 at TPC.INT Support>
Precedence: bulk
X-RT-Loop-Prevention: TPC.INT Support
RT-Ticket: TPC.INT Support #10324
Managed-BY: Request Tracker 2.0.11 (http://www.fsck.com/projects/rt/)
RT-Originator: someone at company.com
To: someone at company.com
Content-Disposition: inline
Content-Type: text/plain
Content-Transfer-Encoding: binary
Date: Wed, 20 Feb 2002 09:55:55 -0800 (PST)
web transaction
Return-Path: <apache at polaris.dazza.org>
X-Sieve: cmu-sieve 2.0
Received: from polaris.dazza.org (polaris.dazza.org [216.152.199.7])
by mail.company.com (Postfix) with ESMTP id 561EFB452A
for <someone at company.com>; Wed, 20 Feb 2002 12:56:56 -0500 (EST)
Received: by polaris.dazza.org (Postfix, from userid 48)
id 4498A25411A; Wed, 20 Feb 2002 09:56:55 -0800 (PST)
MIME-Version: 1.0
X-Mailer: MIME-tools 5.411 (Entity 5.404)
Subject: [TPC.INT Support #10324] test
From: Darren Nickerson via RT <support at info.tpc.int>
Reply-To: support at info.tpc.int
In-Reply-To: <rt-10324 at TPC.INT Support>
Message-Id: <rt-10324-16749.9.70088563374659 at TPC.INT Support>
Precedence: bulk
X-RT-Loop-Prevention: TPC.INT Support
RT-Ticket: TPC.INT Support #10324
Managed-BY: Request Tracker 2.0.11 (http://www.fsck.com/projects/rt/)
RT-Originator: tpcadmin at info.tpc.int
To: someone at company.com
Content-Disposition: inline
Content-Type: text/plain
Content-Transfer-Encoding: binary
Date: Wed, 20 Feb 2002 09:56:55 -0800 (PST)
However, when they were fetched with fetchmail (delivering locally to an older
version of postfix), the Sender: headers became, for the 4 messages listed
above:
Sender: Nobody <support_tpc at polaris.dazza.org>
Sender: Apache <apache at polaris.dazza.org>
Sender: nobody at polaris.dazza.org
Sender: apache at polaris.dazza.org
You can see, that in the case of the 'sendmailpipe' tests (the last two), my
local mail fetching setup was adding a Sender:.
*yeesh*
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