+(defgroup notmuch-reply nil
+ "Replying to messages in notmuch"
+ :group 'notmuch)
+
+(defcustom notmuch-mua-cite-function 'message-cite-original
+ "*Function for citing an original message.
+Predefined functions include `message-cite-original' and
+`message-cite-original-without-signature'.
+Note that these functions use `mail-citation-hook' if that is non-nil."
+ :type '(radio (function-item message-cite-original)
+ (function-item message-cite-original-without-signature)
+ (function-item sc-cite-original)
+ (function :tag "Other"))
+ :link '(custom-manual "(message)Insertion Variables")
+ :group 'notmuch-reply)
+