message-make-mail-followup-to

message-make-mail-followup-to is a compiled Lisp function in `message.el'.

(message-make-mail-followup-to &optional ONLY-SHOW-SUBSCRIBED)

Return the Mail-Followup-To header.
If passed the optional argument ONLY-SHOW-SUBSCRIBED only return the
subscribed address (and not the additional To and Cc header contents).