Variable: message-mode-map

C-M-i        ispell-complete-word
C-M-o        message-split-line
C-a          message-beginning-of-line(var)/message-beginning-of-line(fun)
C-c ?        describe-mode
C-c C-M-y    message-yank-buffer
C-c C-a      mml-attach-file
C-c C-b      message-goto-body
C-c C-c      message-send-and-exit
C-c C-d      message-dont-send
C-c C-e      message-elide-region
C-c C-f C-a  message-generate-unsubscribed-mail-followup-to
C-c C-f C-b  message-goto-bcc
C-c C-f C-c  message-goto-cc
C-c C-f C-d  message-goto-distribution
C-c C-f C-e  message-insert-expires
C-c C-f C-f  message-goto-followup-to
C-c C-f C-k  message-goto-keywords
C-c C-f C-n  message-goto-newsgroups
C-c C-f C-o  message-goto-from
C-c C-f C-r  message-goto-reply-to
C-c C-f C-s  message-goto-subject
C-c C-f C-t  message-goto-to
C-c C-f C-u  message-goto-summary
C-c C-f C-w  message-goto-fcc
C-c C-f RET  message-goto-mail-followup-to
C-c C-f TAB  message-insert-or-toggle-importance
C-c C-f a    message-add-archive-header
C-c C-f d    gnus-diary-check-message
C-c C-f s    message-change-subject
C-c C-f t    message-reduce-to-to-cc
C-c C-f w    message-insert-wide-reply
C-c C-f x    message-cross-post-followup-to
C-c C-j      gnus-delay-article
C-c C-k      message-kill-buffer
C-c C-l      message-to-list-only
C-c C-n      message-insert-newsgroups
C-c C-o      message-sort-headers
C-c C-p      message-insert-screenshot
C-c C-q      message-fill-yanked-message
C-c C-r      message-caesar-buffer-body
C-c C-s      message-send
C-c C-t      message-insert-to
C-c C-u      message-insert-or-toggle-importance
C-c C-v      message-delete-not-region
C-c C-w      message-insert-signature
C-c C-y      message-yank-original
C-c C-z      message-kill-to-signature
C-c M-f      message-mark-insert-file
C-c M-h      message-insert-headers
C-c M-k      message-kill-address
C-c M-m      message-mark-inserted-region
C-c M-n      message-insert-disposition-notification-to
C-c M-r      message-rename-buffer
C-c TAB      message-goto-signature
M-RET        message-newline-and-reformat
M-n          message-display-abbrev
TAB          message-tab