Thanks, Carl! It appears to work.

Carl Wilhelm Soderstrom wrote:
> I've listened to the arguments; and I'm more swayed by the opinion that the
> convenience of reply-to-list is better than any risks due to
> reply-to-sender.
>
> So I've changed the list settings back to what they were many years ago; and
> replies should now go to the list instead of the sender of the message. 
>
> This will serve as a sort of test message. I'll see whether the headers get
> set correctly according to what I think should happen.
>
>