+news.
+This can also be a function receiving the group name as the only
+parameter which should return non-nil iff a confirmation is needed, or
+a regexp, in which case a confirmation is asked for iff the group name
+matches the regexp."
+ :group 'gnus-message
+ :type '(choice (const :tag "No" nil)
+ (const :tag "Yes" t)
+ (regexp :tag "Iff group matches regexp")
+ (function :tag "Iff function evaluates to non-nil")))
+
+(defcustom gnus-confirm-treat-mail-like-news
+ nil
+ "If non-nil, Gnus will treat mail like news with regard to confirmation
+when replying by mail. See the `gnus-confirm-mail-reply-to-news' variable
+for fine-tuning this.
+If nil, Gnus will never ask for confirmation if replying to mail."