Yeah Outlook Express did that when it forwarded messages I forgot
the version - it screwed up spamassassin, I filed a bug, bug finally
got a workaround added.

File a bug with mailman and cyrus dev. teams, maybe they can
work around it.  At least get it documented.  And call Microsoft
tech support and complain.  Microsoft does not charge for tech
support incidents where a bug is reported.


> -----Original Message-----
> [mailto:[EMAIL PROTECTED] Behalf Of Jonathan
> McKeown
> Sent: Tuesday, September 11, 2007 3:20 AM
> To:
> Subject: (off-topic) Outlook 2003 msgids causing odd email problems
> I'm raising this here in case anyone else has either seen this
> problem and has
> any thoughts, or alternatively has experienced the fallout and is
> wondering
> why.
> Over the last few weeks I've had complaints that email messages are going
> astray. This has happened in Cyrus imapd on delivery, and in
> Mailman, where
> archiving of posts is sometimes broken.
> After much scratching of head and tearing of hair, I have finally
> found two
> provable instances - one in Cyrus and one in Mailman - of replies
> to messages
> being sent using Microsoft Outlook Service Pack 2, where Outlook
> has given
> the reply the same message-id as the message it is replying to - in flat
> violation of RFC{2}822. (In one case the original message, the
> read-receipt
> automatically generated by Outlook, the reply, and the forward of
> the reply
> sent when the reply didn't arrive, all had the same msg-id).
> As far as I can tell this behaviour was introduced by SP2; the Web says
> Outlook 2003 before that didn't add message-ids at all.
> I've now set
> duplicatesuppression no
> in imapd.conf which seems to be addressing the problem of lmtpd
> discarding the
> ``duplicate'' messages. Mailman is another issue.
> I haven't seen any discussion of this problem on the Web: has anyone else
> encountered it? Better yet, does anyone have a fix (on the
> Microsoft side)?
> Jonathan
> _______________________________________________
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