Re: Understanding response protocols

D. J. Bernstein writes:
> Bruce Lilly writes:
> >  3. The point remains that "Mail-Followup-To" is ignored by the
> >     vast majority of all UAs and by all of the most widely used UAs.
> False. Example: Mutt is a widely used MUA that honors Mail-Followup-To.
Mutt is widely used? How many per cent of all messages seen on the net 
does Mutt generate?
Arnt