Function: message-mail-file-mbox-p

message-mail-file-mbox-p is a byte-compiled function defined in message.el.gz.

Signature

(message-mail-file-mbox-p FILE)

Documentation

Say whether FILE looks like a Unix mbox file.

Source Code

;; Defined in /usr/src/emacs/lisp/gnus/message.el.gz
(defun message-mail-file-mbox-p (file)
  "Say whether FILE looks like a Unix mbox file."
  (when (and (file-exists-p file)
	     (file-readable-p file)
	     (file-regular-p file))
    (with-temp-buffer
      (nnheader-insert-file-contents file)
      (goto-char (point-min))
      (looking-at message-unix-mail-delimiter))))