I just wrote a new mail to mutt-users with $edit_headers set. Manually adding In-Reply-To: <msg-id> This should be threaded correctly if I'm not mistaken. HTH, Michael -- ..you could spend *all day* customizing the title bar. Believe me. I speak from experience." (By Matt Welsh) PGP-Key-ID: 0xDC1A44DD Jabber: init[0]@amessage.de