Function: sc-mail-check-from
sc-mail-check-from is a byte-compiled function defined in
supercite.el.gz.
Signature
(sc-mail-check-from)
Documentation
Deal with a "From " line in the header.
Such a line should only occur at the very start of the headers.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/supercite.el.gz
;; regi functions
;; https://lists.gnu.org/r/emacs-devel/2009-02/msg00691.html
;; When rmail replies to a message with full headers visible, the "From "
;; line can be included.
(defun sc-mail-check-from ()
"Deal with a \"From \" line in the header.
Such a line should only occur at the very start of the headers."
(and sc-mail-warn-if-non-rfc822-p
(/= (point) sc-mail-headers-start)
(sc-mail-error-in-mail-field)))