Variables for customizing outgoing mail:
gnus-uu-digest-headers ¶List of regexps to match headers included in digested messages. The
headers will be included in the sequence they are matched. If
nil include all headers.
gnus-add-to-list ¶If non-nil, add a to-list group parameter to mail groups
that have none when you do a a.
gnus-confirm-mail-reply-to-news ¶If non-nil, Gnus will ask you for a confirmation when you are
about to reply to news articles by mail. If it is nil, nothing
interferes in what you want to do. This can also be a function
receiving the group name as the only parameter which should return
non-nil if a confirmation is needed, or a regular expression
matching group names, where confirmation should be asked for.
If you find yourself never wanting to reply to mail, but occasionally press R anyway, this variable might be for you.
gnus-confirm-treat-mail-like-news ¶If non-nil, Gnus also requests confirmation according to
gnus-confirm-mail-reply-to-news when replying to mail. This is
useful for treating mailing lists like newsgroups.