On Dec 1, 17:24, der Mouse wrote:
  > For a little while, I've been mildly
surprised to see that when I
 > reply to posts, I end up generating a reply to both the list and 
the
  > original poster.  This evening I realised (yes,
I'm slow :-) It's 
the
   cold weather
:-)) that the Reply-To: header inserted by the list
 software has been changed to include both. 
 That's news to me.  Here's the Reply-To: I see on your message: 
 
Yes, that's the odd thing -- it's not *all* messages.  My reply to
Witchy earlier showed the symptom, because Witchy's message had both
addresses in the Reply-To:.  Yours, however, doesn't, and mine didn't.
 A few others I've replied to also had two addresses, but most seem
just to have the list address.
I wonder if some people are mailing the list with a Reply-To: already
set, and the new version of mailman is adding to it instead of
replacing it?
Witchy?  Did your message have a Reply-To: when you sent it?
  Something else must be responsible.  Maybe something
is mangling the
 Reply-To: on its way to you, or maybe your user agent is sending to 
the
  From: address as well as the Reply-To: address....
No, it's the Reply-To: header, and not mangled by anything here.
--
Pete                                            Peter Turnbull
                                                Network Manager
                                                University of York