* 2023-02-13 09:41:13-0500, Ryan Kavanagh wrote:

> On Mon, Feb 13, 2023 at 03:35:08PM +0200, Eli Zaretskii wrote:
>> This problem doesn't happen if the buffer has the expected separator
>> line saying "--text follows this line--". Why are you trying to use
>> message-mode in a buffer that is not formatted as an email message?
>
> The line was missing because I use (neo)mutt as my email client and I
> decided to try setting my editor to "emacsclient -c", but mutt does
> not insert said separator. Is there an alternate mode I should be
> using when compose emails with non-emacs MUAs?

> It would be nice to be able to use emacs as an editor with non-emacs
> MUAs, so I wonder if I shouldn't file a bug report asking message.el to
> fallback on the RFC (and set mail-header-separator to "") in the cases
> where "--text follows this line--" is missing.

I use rarely Mutt but for those cases I have defined a derived major
mode from message-mode. See the code below. I set mail-header-separator
variable locally to empty string, and it should answer your basic
question.


    (add-to-list 'auto-mode-alist '("/var/tmp/mutt-.*" . mutt-message-mode))

    (defvar mutt-message-mode-map
      (let ((map (make-sparse-keymap)))
        map))

    (define-derived-mode mutt-message-mode message-mode "Mutt"
      "Major mode for editing mail."
      (set-keymap-parent mutt-message-mode-map nil)
      (abbrev-mode 0)
      (mml-mode 0)
      (setq-local mail-header-separator ""))

-- 
/// Teemu Likonen - .-.. https://www.iki.fi/tlikonen/
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