Variable: mail-yank-ignored-headers

mail-yank-ignored-headers is a customizable variable defined in sendmail.el.gz.

Value

"^\\(?:in-reply-to\\|m\\(?:ail-\\(?:f\\(?:ollowup-to\\|rom\\)\\|reply-to\\)\\|essage-id\\)\\|origin\\|re\\(?:ceived\\|mailed\\|turn-path\\)\\|s\\(?:tatus\\|u\\(?:bject\\|mmary-line\\)\\)\\|to\\|via\\|x-rmail-\\(?:\\(?:attribute\\|keyword\\)s\\)\\):"

Documentation

Delete these headers from old message when it's inserted in a reply.

This variable was added, or its default value changed, in Emacs 23.1.

Source Code

;; Defined in /usr/src/emacs/lisp/mail/sendmail.el.gz
  :version "23.1")			; changed from nil to t

(defcustom mail-yank-ignored-headers
  (concat "^"
          (regexp-opt '("via" "mail-from" "origin" "status" "remailed"
                        "received" "message-id" "summary-line" "to" "subject"
                        "in-reply-to" "return-path" "mail-reply-to"
                        ;; Should really be rmail-attribute-header and
                        ;; rmail-keyword-header, but this file does not
                        ;; require rmail (at run time).
                        "x-rmail-attributes" "x-rmail-keywords"
                        "mail-followup-to") "\\(?:")
          ":")
  "Delete these headers from old message when it's inserted in a reply."
  :type 'regexp
  :version "23.1")