Gnus uses wrong gmail address when sending!

[Thorsten]

Hi List, 

I experienced for the second time now a really unacceptable behaviour
from gnus, that might be related to the Cc: field:

I send this email (copied from the archived sent mail folder):

,----------------------------------------------------------------------------
| From: Thorsten <quintXYZ@googlemail.com>
| Subject: GSoC 2012: Mentor application?
| Newsgroups: gmane.emacs.orgmode
| Cc: summer-of-code@gnu.org
| Date: Thu, 22 Mar 2012 20:45:26 +0100 (3 hours, 22 minutes, 32 seconds ago)
| 
| 
| Hi List, 
| visiting the GSoC 2012 page recently  I was surprised to see the following
| announcement: ...
`----------------------------------------------------------------------------

and it arrived in the org-mode mailing list as: 

,----------------------------------------------------------------------------
| From: Thorsten <quintXYZ@googlemail.com>
| Subject: GSoC 2012: Mentor application?
| Newsgroups: gmane.emacs.orgmode
| To: emacs-orgmode@gnu.org
| Cc: summer-of-code@gnu.org
| Date: Thu, 22 Mar 2012 20:45:26 +0100 (4 hours, 18 minutes, 23 seconds ago)
| 
| 
| Hi List, 
| visiting the GSoC 2012 page recently  I was surprised to see the following
| announcement: ...
`----------------------------------------------------------------------------

but gnus sent this mail to the summmer-of-code mailing-list:

,----------------------------------------------------------------------------
| From: Thorsten <tjoXYZ@googlemail.com>
| Subject: GSoC 2012: Mentor application?
| Newsgroups: gmane.emacs.orgmode
| Cc: summer-of-code@gnu.org
| Date: Thu, 22 Mar 2012 20:45:26 +0100 (3 hours, 45 minutes, 41 seconds ago)
| Posted-To: gmane.emacs.orgmode
| 
| The following message is a courtesy copy of an article
| that has been posted to gmane.emacs.orgmode as well.
| 
| 
| Hi List, 
| visiting the GSoC 2012 page recently  I was surprised to see the following
| announcement: ...
`----------------------------------------------------------------------------

i.e. it used a different gmail account for sending than the one
specified, besides the fact that I'm subscribed to both mailing-lists
with the email specified in the original mail (quintXYZ). 

This did not happen before, and since I did not use the Cc: field before
I suspect its the culprit. 

the From: line is a mix too: 
,---------------------------------------
| From: Thorsten <tjoXYZ@googlemail.com>
`---------------------------------------

The name 'Thorsten' is used for the other gmail account (quintXYZ), not
this one (tjoXYZ). So things really look quite messed up, besides the
fact that I use my setup for quite some time now without problems (but
without the Cc: field).

My system:
,----------------------------------------------------------------------
| "GNU Emacs 24.0.93.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.10)
|  of 2012-02-07 on arch
| Ma Gnus v0.2"
`----------------------------------------------------------------------

My .gnus:

,--------------------------------------------------------------------------------
| ; konfiguration von http://www.geier0815.de/
| 
| ; lesen: newsserver festlegen
| (setq gnus-select-method ' (nntp "news.hansenet.de"))
| 
| ;; ; schreiben: email-client einrichten
| (setq message-sendmail-envelope-from 'header)
| (setq user-mail-address "quintXYZ@googlemail.com")
| (setq user-full-name "Thorsten")
| 
| ;; ; mails empfangen
| (setenv "MAILHOST" "imap.gmail.com")
| 
| ; Dreier Teilung des Fensters bei Gnus 
| (gnus-add-configuration '(article
| (horizontal 1.0 (vertical 65 (group 1.0) ) (vertical 1.0 (summary 0.15
| point) (article 1.0) )))) 
| (gnus-add-configuration '(summary (horizontal
| 1.0 (vertical 65 (group 1.0) ) (vertical 1.0 (summary 1.0 point) ))))
| 
| 
| ;; from 
http://cataclysmicmutation.com/2010/11/multiple-gmail-accounts-in-gnus/
| 
| ;; Getting authinfo to work with multiple Gmail accounts
| ;; see /etc/hosts for gmail-aliasX.com
| (setq gnus-secondary-select-methods
|       '( (nnimap "tjoXYZ"
|                 (nnimap-address "imap.gmail-alias2.com")
|                 (nnimap-server-port 993)
|                 (nnimap-stream ssl)
|                 (nnimap-authinfo-file "~/.authinfo"))
|         (nnimap "quintXYZ"
|                 (nnimap-address "imap.gmail-alias4.com")
|                 (nnimap-server-port 993)
|                 (nnimap-stream ssl)
|                 (nnimap-authinfo-file "~/.authinfo"))))
| 
| 
| ;; Setting up Multiple SMTP Servers
| ;; see ~/.msmtprc
| 
| ; Setting behaviors per Mailbox
| (setq gnus-parameters
|     '(("nnimap\\+tjoXYZ:INBOX"
|          (display . all)
|          (posting-style
|           (name "NAME")
|           (address "tjoXYZ@googlemail.com")
|           (eval (setq message-sendmail-extra-arguments '("-a" "tjoXYZ")))
|        ))
| 
|         ("nnimap\\+quintXYZ:INBOX"
|          (display . all)
|          (posting-style
|           (name "Thorsten")
|           (address "quintXYZ@googlemail.com")
|           (eval (setq message-sendmail-extra-arguments '("-a" "quintXYZ")))
|           )) ))
| 
| 
| ;;;  a few global settings
| (setq message-send-mail-function 'message-send-mail-with-sendmail)
| (setq sendmail-program "/usr/bin/msmtp")
| (setq message-sendmail-extra-arguments '("-a" "tjoXYZ"))
| (setq gnus-permanently-visible-groups ".*")
| 
| ;; Fixing the Naming Problem
| (add-hook 'gnus-group-mode-hook 'gnus-topic-mode)
`--------------------------------------------------------------------------------

-- 
cheers,
Thorsten