gnus-summary-mail-forward
gnus-summary-mail-forward is an interactive autoloaded compiled Lisp function in `gnus-msg.el
'.
(gnus-summary-mail-forward &optional ARG POST)
Forward the current message(s) to another user.
If process marks exist, forward all marked messages;
if ARG is nil, see `message-forward-as-mime' and `message-forward-show-mml';
if ARG is 1, decode the message and forward directly inline;
if ARG is 2, forward message as an rfc822 MIME section;
if ARG is 3, decode message and forward as an rfc822 MIME section;
if ARG is 4, forward message directly inline;
otherwise, use flipped `message-forward-as-mime'.
If POST, post instead of mail.
For the "inline" alternatives, also see the variable
`message-forward-ignored-headers'.