Keith Moore writes:
you're free to set Reply-To to ietf-822@xxxxxxx
I don't want _replies_ to go to ietf-822@xxxxxxxx I want _followups_ to go to ietf-822@xxxxxxxx
Every popular MUA has separate reply/followup functions; that's what users want.
An increasing number of MUAs support the sender specifying a followup list (normally with Mail-Followup-To) that doesn't include the reply list; that's what users want.