Hi, a more elaborate theory:
https://www.emacswiki.org/emacs/GnusTutorial shows that Gnus+Emacs works on e-mail and newsgroups alike. If Rodolfo's Gnus got Andrei's message from a newsgroup rather than via mail, then it might have directed the reply to that newsgroup. I got the Cc: via mail, because Gnus merrily mixes both communications channels. (It's easy. Formats and transport protocols are very similar.) I think the theory is dead that Andrei POPESCU's mails themselves are the trigger. Those which i have in my mailbox show no USENET headers. ----------------------------------------------------------------------- So a request to The Wanderer: You wrote that you have a copy of https://lists.debian.org/debian-user/2019/08/msg01294.html Subject: Re: mplayer won't play m4a From: Andrei POPESCU <andreimpope...@gmail.com> Date: Mon, 26 Aug 2019 22:05:05 +0300 Message-id: <20190826190505.zldub4tzker6am7d@localhost> Please check by looking at the full header display or into the mailbox file whether this message's header collection has Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail Newsgroups: gmane.linux.debian.user or any other occurence of "gmane". ----------------------------------------------------------------------- And a curious question towards Curt <cu...@free.fr>: Your mails have the same Old-Return-Path: <gldu-debian-use...@m.gmane.org> as in the message copy which Rodolfo gave me as the one to which he tries to reply and fails. There are more signs that gmane touches your messages before they show up in my mailbox. (X-Injected-Via-Gmane: http://gmane.org/) If it is not an intrusion into your privacy: Do you have an explanation for the involvement of gmane in your mail transport ? ----------------------------------------------------------------------- Have a nice day :) Thomas