On Wed, 24 Feb 2010 16:10:11 +0100 Bernd Petrovitsch wrote: > On Mit, 2010-02-24 at 16:51 +0200, Timo Sirainen wrote: > [...] > > (I hate the whole concept of dropping incoming messages as duplicates > > based on Message-ID. I would definitely want it disabled for my own > > mails, for example that would mean I couldn't filter messages to > > mailing lists based on List-ID: header, because the first mail usually > > comes directly from the other user, and then the second mail with the > > List-ID: would get dropped.) > Aren't those usually two separate mails with different message-ids as > one comes directly by the sender and the other generated by the > mailinglist manager?
I guess you are wrong. Mailing list software does not change the Message-ID. --Frank Elsner