OK; the key bit I missed was that the incorrectly parsed email address
was broken over two lines.
Using a standalone mailman + postfix setup on Hardy I have been able to
reproduce using the following procedure:
Install postfix and configure as final destination for <hostname>.example.com
Setup three users (user1, user2 and user3)
Install mailman and setup default (mailman) and test-list (with user1 as list
owner) list.
Configure Apache to allow administration of mail lists
Install and configure dovecot for local mail delivery.
Add user2 to the test-list mail list using the administration screens
Using the attached email (test.txt), simulate the offending use case
using the following command using the user1 account:
telnet localhost 25 < test.txt
The posting to the test-list mailing list incorrectly has two emails
addresses:
Date: Mon, 18 Oct 2010 10:44:12 +0100 (BST)
From: us...@hardy-mailman.example.com
Cc: three <us...@hardy-mailman.example.com>,
test-l...@hardy-mailman.example.com, u...@hardy-mailman.example.com
Subject: [Test-list] Test
Test Email
_______________________________________________
Test-list mailing list
test-l...@hardy-mailman.example.com
http://hardy-mailman.example.com/cgi-bin/mailman/listinfo/test-list
** Attachment added: "Test email commands and content"
https://bugs.launchpad.net/debian/+source/mailman/+bug/659975/+attachment/1699390/+files/test.txt
--
mailman breaks CC field incorrectly
https://bugs.launchpad.net/bugs/659975
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