On Mon, 26 Nov 2007 22:27:51 +0100, [EMAIL PROTECTED] wrote: > The message ID will be different for each mail within a thread, but > there is an In-Reply-To field that contains the message ID of the > message replied to; this is used for threading. For example, copying >> from the header of your message: > > Message-ID: <[EMAIL PROTECTED]> > In-Reply-To: <[EMAIL PROTECTED]> > > <[EMAIL PROTECTED]> is the ID of Barbara's message > that you replied to.
I see. > However, sometimes threading doesn't work, either because someone > participating in an exchange doesn't use reply or because the reply is > to a message within a digest (which has its own message ID that is not > connected to any thread). Or someone hits "Reply", but edits the subject > as he really wants to start a new thread. In the first case, the thread > breaks up into two subthreads, and in the second case, mail clients > supporting threading will display the message within a thread it doesn't > belong to. Well that can happend allways that someone destroy the thread. >> The List-id field was only a smal problem for me. And for >> me it's not so necessary like the possibility to sort by >> thread. > > But thankfully, filtering for List-id isn't a problem at all; you can do > it if you want. If the mail headers do contain a List-id field, that is: > of the 16 mailing lists I've subscribed to, only 6 use "list-id". Well at me (ok only subscribed to yahoo and mailman lists (think yahoo also use mailman) there is a list-id. I looked into Gyazmail (because was interested) and also here the thread was displayed good. (without list-id). So I asked myself how other MUA's will do it? They also like I would say cook only with water. But thank you for explaining it to me. Like always to learn new things.
