Comment 7 for bug 544898

> Should we set these to t by default?

IMO the default behaviour should be to follow RFCs, and both MFT and MRT are non-standard headers which shouldn't be enabled by default.

> Most users won't bother otherwise.

How about adding a "mailing lists" section to the manual, where all these things could be mentioned?

> Ok, that sounds Thunderbirdish. But I think
> vm-reply-ignored-reply-tos is a very confusing name. I never knew
> what it was for. Why don't we rename it to
> vm-reply-to-mangling-mailing-lists?

Thinking about it again, I believe that we should introduce a single
variable like vm-mailing-list-options-alist to control the various
options. It could look like this:

    '(("\\`emacs-devel@gnu\\.org\\'" mft)
      (".*@lists\\.launchpad\\.net\\'" mft)
      ("\\`reply-to-mangling@list\\.example\\'" mft mrt ignore-reply-to))

Open question: Should the CAR elements be regexps or strings? Regexps would be more flexible and allow matching for several lists at one server, and are already used with vm-reply-ignored-reply-tos. Strings would be simpler of course.