[Mailman-Users] NNTP and Message-Ids

[Simen E. Sandberg]

On Wed, 2001-11-28 at 18:53, Jon Carnes wrote:
> That's an interesting problem...  You could write a small script on the 
> News server side that scans the articles and substitues in the poper 
> information in the header of those articles.  Still in order to make this 
> work correctly, you would be making assumptions that I don't think Mailman 
> should make by default.

I don't know when the Message-Id changes. If it is Mailman that changes
it, why? And is it possible for Mailman to change the header for the
mailing list recipients too?

> On Wednesday 28 November 2001 12:32, Simen E. Sandberg wrote:
> > First: Sorry for my bad english. I'm not a native english-speaker, so
> > please ignore my mistakes. :o)
> >
> > I'm running some lists with the NNTP-gateway enabled both ways. I've
> > noticed that when mailman posts to the newsgroup, it changes the
> > Message-Id. Or, I guess it's mailman and not INN. This generates
> > problems with threading, since one message got two message ids.
> >
> > An example:
> >
> > test at lists.example.com both posts and collects messages from local.test
> > at the news-server news.example.com. John and Anne are both subscribed
> > to the list and Peter prefers to use the news-server.
> >
> > John posts a message to the list with subject "Hello". John's client
> > generates the message id <john123.456 at example.com> for that mail.
> > Mailman will now forward that message correctly to Anne, with the right
> > message id. But when Peter reads the message at the news-server, he will
> > see the message id <mailman.345.987 at lists.example.com>.
> >
> > So far, everything looks fine for the users. But now Anne wants to make
> > a reply to John's post and posts a message to the list with subject "Re:
> > Hello". This message has the In-Reply-To-header
> > "<john123.456 at example.com>", since this is the message id on the mail
> > she recieved. Peter, who are still using NNTP, will not be able to find
> > the message <john123.456 at example.com>, since it has been renamed to
> > <mailman.345.654 at lists.example.com> on the news-server. Peter's
> > newsreader will then create a new thread for the reply.
> >
> >
> > Are there any way I can let all the users of my lists recieve the same
> > message ids, so my news-reading users will be able to get the threads
> > right?
> >
> > Thak you in advance.
> 
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