From the conversations about the reply-to issues, i propose changing reply_goes_to_list so it will *not* cause user specified reply-to headers, if present, to be replaced with the list's address. It just does not seem valid to override the mechanism which is intended for users to make their correct address available.
Conversely, though using the reply-to at all in this way seems a bit improper, it sounds like the functionality is really necessary for some kinds of lists. (Perhaps i'm neglecting some alternate means for implementing this that was mentioned?)
This will apply at least to individual messages, while digests as a whole will have the list as the reply-to addr.
Objections?
Yes, I object to that. Either the person sees why reply-to munging is bad, or he doesn't. If he doesn't, he's not going to want this behavior. Consistancy is important; there should not be differing behavior on a per-list basis when you hit "reply" based on the mail setup of the original sender.
John