Variable: message-kill-buffer-query
message-kill-buffer-query is a customizable variable defined in
message.el.gz.
Value
t
Documentation
Non-nil means that killing a modified message buffer has to be confirmed.
This is used by message-kill-buffer.
This variable was added, or its default value changed, in Emacs 23.1.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/message.el.gz
(defcustom message-kill-buffer-query t
"Non-nil means that killing a modified message buffer has to be confirmed.
This is used by `message-kill-buffer'."
:version "23.1" ;; No Gnus
:group 'message-buffers
:type 'boolean)