From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eric Abrahamsen Newsgroups: gmane.emacs.help Subject: Re: The order of the headers in Message Mode is peculiar! Date: Thu, 25 Jan 2024 16:20:40 -0800 Message-ID: <87o7d9lzc7.fsf@ericabrahamsen.net> References: <61fd0e098e8268011bf1fbfb86dcb764@posteo.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="23662"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:xR2jECNYQb3zt9w66YLw1thC6Wc= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jan 26 01:21:34 2024 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rT9yN-0005wR-Ke for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 26 Jan 2024 01:21:31 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rT9xr-0005j0-K8; Thu, 25 Jan 2024 19:20:59 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rT9xp-0005iY-FN for help-gnu-emacs@gnu.org; Thu, 25 Jan 2024 19:20:57 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rT9xn-0003ge-Gk for help-gnu-emacs@gnu.org; Thu, 25 Jan 2024 19:20:57 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1rT9xi-000550-Qt for help-gnu-emacs@gnu.org; Fri, 26 Jan 2024 01:20:50 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:145806 Archived-At: rameiko87@posteo.net writes: > I read on https://www.rfc-editor.org/rfc/rfc5322.html#section-3.6 that > the order of the headers does not matter when sending emails. > But I can't explain why Message Mode defaults to the following order > when crafting a new emails: > > To: > Subject: > From: > > given that the default value of message-header-format-alist is > different! Is there any reason for this order (and where is such order > decided?), and do you agree that the default order of the headers > appearing after C-x m should be the default value of the variable > message-header-format-alist ? The short answer is, there is no code that attempts or guarantees to sort the headers in a new message. The current ordering results from code in `message-mail', where a header list containing "To" and "Subject" is passed down, ultimately to `message-setup-1', which does the actual header insertion (see the comment ";; Insert all the headers"). The weird thing is that `message-sort-headers' is called before *sending* a message, in `message-send' -> `message-fix-before-sending'. Why sort order matters for an outgoing message I don't know. Anyway, if I were you I would add `message-sort-headers' to the `gnus-message-setup-hook', or if you don't want it to be gnus-specific, to the `message-header-setup-hook', with a higher DEPTH argument. HTH, Eric