[Mailman-Users] Retention of Message-Id:
J C Lawrence
claw at kanga.nu
Thu Jun 27 19:41:47 CEST 2002
On Thu, 27 Jun 2002 09:09:40 -0400
Kevin McCann <kmccann at bellanet.org> wrote:
> Hi there, I am using a web forum to send messages to a gated Mailman
> list. I send a custom Message-Id: header and Mailman seems to retain
> that. In other words, when I receive the message in my inbox (I'm a
> member of the list), it has the same Message-Id: that was generated by
> the forum script. Which is great - I can achieve true threading in the
> forum using these IDs when processing email replies. When I send a
> message from a forum to a Lyris list, however, Lyris does not retain
> the Message-Id:, it replaces the one I sent with it's own.
> Can someone tell me which behaviour is correct?
> Is the behaviour of Lyris contrary to an RFC stipulation? If so, can
> someone point me to which RFC and which rule? If they're not being
> RFC-compliant I'd like to bring it to their attention.
Its an ambiguous situation. Is the message sent by the list server a
new message or a mere forwarded copy of the original message? There are
good reasons for both sides. But, one gets a new Message-ID under the
RFC and the other doesn't.
Mailman and Lyris call on opposite sides of the split.
> Ideally, I'd like to gate my forums to any type of list - Mailman,
> Lyris, Yahoogroups. Majordomo, ezmlm, you name it. I just need to know
> whether I can *usually* depend on Message-Id: retention.
Usually you can. Most list servers retain Message-IDs. A few offer it
as a config option.
J C Lawrence
---------(*) Satan, oscillate my metallic sonatas.
claw at kanga.nu He lived as a devil, eh?
http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.
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