Package: mailman Version: 1:2.1.11-11+lenny1 Severity: serious Mailman does stuff to the headers of messages which pass through it. This can completely break the syntax and semantics of eg the CC header.
Mailman should not edit existing headers _at all_. For example, I sent this message (using Emacs VM): Date: Wed, 2 Feb 2011 13:00:59 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: [email protected] Cc: Ian Jackson <[email protected]>, Ian Jackson <[email protected]>, Some Person With A Whole Paragraph Of Words Preceding Their Email Address Which Will Make It Word Wrap <[email protected]>, Some Other Address <[email protected]> Subject: Re: Test message In-Reply-To: <[email protected]> References: <[email protected]> X-Mailer: VM 8.0.9 under Emacs 22.2.1 (i486-pc-linux-gnu) Body. What arrived the other side of mailman and exim4 was this: From [email protected] Wed Feb 02 13:01:00 2011 Return-path: <[email protected]> Envelope-to: [email protected] Received: from localhost ([127.0.0.1] helo=chiark.greenend.org.uk ident=list) by chiark.greenend.org.uk (Debian Exim 4.69 #1) with esmtp (return-path [email protected]) id 1PkcKS-0008Cm-RN; Wed, 02 Feb 2011 13:01:00 +0000 Received: by chiark.greenend.org.uk (Debian Exim 4.69 #1) with local (return-path [email protected]) id 1PkcKR-0008Bl-BP; Wed, 02 Feb 2011 13:00:59 +0000 Message-ID: <[email protected]> MIME-Version: 1.0 In-Reply-To: <[email protected]> References: <[email protected]> X-Mailer: VM 8.0.9 under Emacs 22.2.1 (i486-pc-linux-gnu) X-BeenThere: [email protected] X-Mailman-Version: 2.1.11 Precedence: list List-Id: "test mailing list, not archived" <test-list.chiark.greenend.org.uk> List-Unsubscribe: <http://www.chiark.greenend.org.uk/mailman/options/test-list>, <mailto:[email protected]?subject=unsubscribe> List-Post: <mailto:[email protected]> List-Help: <mailto:[email protected]?subject=help> List-Subscribe: <http://www.chiark.greenend.org.uk/mailman/listinfo/test-list>, <mailto:[email protected]?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: [email protected] From: Ian Jackson <[email protected]> Sender: [email protected] To: [email protected] Cc: [email protected], Some Other Address <[email protected]>, Will Make It Word Wrap <[email protected]>, Ian Jackson <[email protected]>, Ian Jackson <[email protected]>, [email protected] Subject: Re: Test message Date: Wed, 2 Feb 2011 13:00:59 +0000 Body. _______________________________________________ test-list maillist - [email protected] http://www.chiark.greenend.org.uk/mailman/listinfo/test-list -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
