[Mailman-Developers] [Fwd: Re: [Mailman-Announce] Mailman 2.1.6 beta 1]

J C Lawrence claw at kanga.nu
Fri Jan 21 01:48:20 CET 2005

On Fri, 21 Jan 2005 09:14:54 +0900
Tokio Kikuchi <tkikuchi at is.kochi-u.ac.jp> wrote:

> This is useful if some one post a message with subject like this: Blar
> Blar Blar Blar Blar Blar Blar Was Re: [prefix] Foo Bar List
> subscribers may wonder why this messages sneaked in the thread. It had
> happend many times in Mailman-* lists.

The canonical case is:

  Subject: This, that and the other (was: Something else entirely)

> I believe threading in the archive is performed by looking the
> In-Reply-To: header and not by 'Re:' keyword (or what should be done
> if a thread is divided in two or more?). There are also not threaded
> messages in the archive before 2.1.6b1 (I can tell by [c-nsp] is not
> followed by Re:). The real problem is that there are quite a few
> mailers which don't add In-Reply-To: header.

True, or References:, and a fair percentage of those that do generate
References, don't do so properly.

A good coverage of how to thread messages may be found here:


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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