Dan Jacobson wrote:
In sendmail.el, in addition to
C-c C-f C-a mail-mail-reply-to
C-c C-f C-b mail-bcc
C-c C-f C-c mail-cc ...
there ought to be a
C-c C-f C-l mail-separator
which will insert a "--text follows this line--" line,
for folks who have done M-x mail-mode on a buffer, and are inserting
the components into that buffer one by one. (That buffer was already
pretty much a mail message, or else one would have done C-x m).
Here's how mail-setup does it (point is already at the beginning of
(insert mail-header-separator "\n")
But mail-sendmail-delimit-header doesn't bother setting the category
text property or inserting the newline:
Hmmm, in gnus this could be called message-insert-delimiter.