Function: rmail-get-header
rmail-get-header is a byte-compiled function defined in rmail.el.gz.
Signature
(rmail-get-header NAME &optional MSGNUM)
Documentation
Return the value of message header NAME, nil if it has none.
MSGNUM specifies the message number to get it from. If MSGNUM is nil, use the current message.
Probably introduced at or before Emacs version 23.1.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/rmail.el.gz
(defun rmail-get-header (name &optional msgnum)
"Return the value of message header NAME, nil if it has none.
MSGNUM specifies the message number to get it from.
If MSGNUM is nil, use the current message."
(rmail-apply-in-message msgnum 'rmail-get-header-1 name))