On 6/10/06, Andreas Pakulat <firstname.lastname@example.org> wrote:
> On 10.06.06 14:07:49, Erik Huelsmann wrote:
> > On 6/9/06, Andreas Pakulat <email@example.com> wrote:
> > >On 09.06.06 07:53:14, Kenneth Porter wrote:
> > >> --On Friday, June 09, 2006 3:37 PM +0200 Urs Thuermann
> > ><firstname.lastname@example.org>
> > >> wrote:
> > >>
> > >> >The threads in this mailing list are shown badly cluttered in my mail
> > >> >reader (worse than mosts mailing lists I am subscribed to). I think
> > >> >this is caused by the following:
> > >>
> > >> Threading in mailing lists is implemented using the Message-ID header and
> > >> References header. The References header refers to the Message-ID headers of
> > >> prior messages. IMAP servers use this to tell clients about threads. The
> > >> Subject line is only used (by some clients) as a workaround to systems that
> > >> break the References chain.
> > >
> > >The In-Reply-To Header is also needed for proper threading. Without it
> > >you'd have all messaged belonging to a thread withing the same tree, but
> > >not in the right order, because the messages without In-Reply-To are put
> > >under the OP.
> > Not if the References: header is used correctly... (In-Reply-To is
> > actually less reliable than References, because many readers don't
> > conform to the suggested format.)
> I didn't read any RFC's on this, but from my experience References
> contains the message Id's of _all_ earlier messages in the (sub)thread.
> In-Reply-To in turn contains the message Id of the "parent" message (the
> one that was replied to). Now if In-Reply-To is missing, you cannot
> figure out which message is an answer to which other, thus mail clients
> just append to the OP mail.
> Or does the References header have a particular order?
This is very OT, so, I'd rather discuss privately, but:
References keeps max 7 M-Id's: The first in thread and the 6 last
(earliest first) [no duplicates], so, yes, it has a well defined
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Received on Sat Jun 10 17:14:19 2006