From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.bugs Subject: bug#45631: 27.1; regression: message-forward-ignored-headers no longer applies when forwarding as MIME Date: Wed, 13 Jan 2021 10:25:51 +0100 Message-ID: <87ft35qjc0.fsf@gmail.com> References: <87mtxq7xmd.fsf@fifthhorseman.net> <87y2h71qj5.fsf@gmail.com> <87mtxn6k69.fsf@fifthhorseman.net> <878s961hmq.fsf@gmail.com> <87mtxgq0qo.fsf@gnus.org> <87ft385v27.fsf@fifthhorseman.net> <87czybh5nl.fsf@gnus.org> <87ft36jj83.fsf@fifthhorseman.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39226"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Lars Ingebrigtsen , 45631@debbugs.gnu.org To: Daniel Kahn Gillmor Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Jan 13 10:26:10 2021 Return-path: Envelope-to: geb-bug-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 1kzcPq-000A5t-59 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 13 Jan 2021 01:25:52 -0800 (PST) Mail-Copies-To: never Gmane-Reply-To-List: yes In-Reply-To: <87ft36jj83.fsf@fifthhorseman.net> (Daniel Kahn Gillmor's message of "Tue, 12 Jan 2021 09:57:48 -0500") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:197884 Archived-At: Daniel Kahn Gillmor writes: > generally, DKIM signatures are *more* likely to break if headers are > stripped than PGP/MIME or S/MIME, as DKIM is capable of covering headers > directly. Even given that concern, i think the most we'd want the > "best" setting to do to constrain header stripping would be to compare > the stripped version of the file to the non-stripped version -- if the > non-stripped version passes DKIM validation, but the stripped does not, > then either produce a warning message about DKIM signature breakage or > (if in an interactive mode) prompt the user about whether they want to > apply the filter or not. Adding unconditional checking of DKIM signatures to Emacs when forwarding a message is a no-no. Think of people who work on email when offline, or people who don=CA=BCt want to advertise the fact that they've received email from a particular domain. Robert