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Re: [OT] Regular DKIM issues on this ML (was: Re: why !oh why Debian and application list)


12 juin 2020 à 22:53 de recoverym4n@enotuniq.net:

> Yes, but I just cannot find that particular e-mail of yours with
> Message-Id: <> [🔎] M9Er2Er--3-2@tuta.io> >.
I didn't understand where you got the ID then? ^^

> And the search via Web interface finds nothing.

12 juin 2020 à 23:16 de mstone@debian.org:

> On Fri, Jun 12, 2020 at 11:53:40PM +0300, Reco wrote:
>> No, the body is not interesting at all here.
>> What I'm interested in is the result of DKIM check, and that's might be
>> written in e-mail headers. Or not.
> dkim=fail (2048-bit key) reason="fail (body has been altered)"                                                                                                               header.d=tuta.io
Thanks Michael. The "reason" is stated a little bit differently from my side but it boils down to the same thing. Here are the full headers as requested by Reco:

Authentication-Results: w3.tutanota.de (dis=spam; info=dmarc domain policy);	dmarc=fail (dis=spam p=quarantine; aspf=r; adkim=s; pSrc=dns) header.from=tuta.io;	dkim=fail reason="body hash does not match" header.d=tuta.io header.s=s1 header.b=FCKFHXRgReceived: from w4.tutanota.de ([])        by w3.tutanota.de        with SMTP (SubEthaSMTP 3.1.7) id KB5CNTA9        for l0f4r0@tuta.io;        Sun, 07 Jun 2020 19:38:11 +0200 (CEST)Received-SPF: None (mailfrom) identity=mailfrom; client-ip=; helo=bendel.debian.org; envelope-from=bounce-debian-user=l0f4r0=tuta.io@lists.debian.org; receiver=<UNKNOWN> Received: from bendel.debian.org (bendel.debian.org [])	by w4.tutanota.de (Postfix) with ESMTPS id E710910602CF	for <l0f4r0@tuta.io>; Sun,  7 Jun 2020 17:38:11 +0000 (UTC)Received: from localhost (localhost [])	by bendel.debian.org (Postfix) with QMQP	id 645DA20490; Sun,  7 Jun 2020 17:38:07 +0000 (UTC)X-Mailbox-Line: From debian-user-request@lists.debian.org Sun Jun  7 17:38:07 2020Old-Return-Path: <l0f4r0@tuta.io>X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on bendel.debian.orgX-Spam-Level: X-Spam-Status: No, score=-9.9 required=4.0 tests=DIGITS_LETTERS,DKIM_INVALID,	DKIM_SIGNED,LDOSUBSCRIBER,LDO_WHITELIST,RCVD_IN_DNSWL_NONE,	RCVD_IN_MSPIKE_H2 autolearn=unavailable autolearn_force=no	version=3.4.2X-Original-To: lists-debian-user@bendel.debian.org Delivered-To: lists-debian-user@bendel.debian.org Received: from localhost (localhost [])	by bendel.debian.org (Postfix) with ESMTP id 28D0220487	for <lists-debian-user@bendel.debian.org>; Sun,  7 Jun 2020 17:38:00 +0000 (UTC)X-Virus-Scanned: at lists.debian.org with policy bank en-htX-Amavis-Spam-Status: No, score=-6.201 tagged_above=-10000 required=5.3	tests=[BAYES_00=-2, DIGITS_LETTERS=1, DKIM_SIGNED=0.1,	DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,	LDO_WHITELIST=-5, RCVD_IN_DNSWL_NONE=-0.0001,	RCVD_IN_MSPIKE_H2=-0.001] autolearn=ham autolearn_force=noReceived: from bendel.debian.org ([])	by localhost (lists.debian.org []) (amavisd-new, port 2525)	with ESMTP id E4EkTvek1ETa for <lists-debian-user@bendel.debian.org>;	Sun,  7 Jun 2020 17:37:55 +0000 (UTC)X-policyd-weight: using cached result; rate: -4.6Received: from w4.tutanota.de (w4.tutanota.de [])	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)	 key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256	 client-signature RSA-PSS (2048 bits) client-digest SHA256)	(Client CN "tutanota.com", Issuer "Sectigo RSA Domain Validation Secure Server CA" (not verified))	by bendel.debian.org (Postfix) with ESMTPS id AE09620485	for <debian-user@lists.debian.org>; Sun,  7 Jun 2020 17:37:55 +0000 (UTC)Received: from w3.tutanota.de (unknown [])	by w4.tutanota.de (Postfix) with ESMTP id E763E1060254	for <debian-user@lists.debian.org>; Sun,  7 Jun 2020 17:37:52 +0000 (UTC)DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1591551472;	s=s1; d=tuta.io;	h=From:From:To:To:Subject:Subject:Content-Description:Content-ID:Content-Type:Content-Type:Content-Transfer-Encoding:Content-Transfer-Encoding:Cc:Date:Date:In-Reply-To:In-Reply-To:MIME-Version:MIME-Version:Message-ID:Message-ID:Reply-To:References:References:Sender;	bh=s0Y3rXEVXjnN/M6XYAtvSYoqbqPfl8XS3uJxBmHyC0Q=;	b=FCKFHXRgAWn5LR7h0/3d6Xxik44GKm3SLLgp0YhDEVrIFOC6xrJZYVh7ccv1UQGf	6QtvLewAWCYnk1VUntaSnEXprLS2Eh9uQnCN7XVbiMA5oguf6QQ4lohnRviwtTt3x3K	NFThvwzmLuHereSCAeBoWoaNLqqZltQsUdg6tS5ubUphw0jvwHywxQT6X2floh9rFko	kBqkQZD1nFfAgLtVuwIYm+PSv6+2FA51nufGuk5LOm3RAYUzk5J2S6mqKm0z2Dulc5i	XAvanOIePofjpXG/ARkuqgbd306GVKL6chiqfbVl/5ZMIS5PDEshxufAxi9/MLIwoxp	cNeZzZT14A==Date: Sun, 7 Jun 2020 19:37:52 +0200 (CEST)From: l0f4r0@tuta.io To: Debian User <debian-user@lists.debian.org>Message-ID: <[🔎] M9Er2Er--3-2@tuta.io>In-Reply-To: <[🔎] dfce1b61-8439-4c29-4d8b-1dec467fe7a2@gmx.de>References: <[🔎] dfce1b61-8439-4c29-4d8b-1dec467fe7a2@gmx.de>Subject: Re: why !oh why Debian and application listMIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: quoted-printableX-Rc-Virus: 2007-09-13_01X-Rc-Spam: 2008-11-04_01Resent-Message-ID: <hKLHkctiec.A.Ma._XS3eB@bendel>Resent-From: debian-user@lists.debian.org X-Mailing-List: <debian-user@lists.debian.org> archive/latest/763444X-Loop: debian-user@lists.debian.org List-Id: <debian-user.lists.debian.org>List-URL: <https://lists.debian.org/debian-user/>List-Post: <mailto:debian-user@lists.debian.org>List-Help: <mailto:debian-user-request@lists.debian.org?subject=help>List-Subscribe: <mailto:debian-user-request@lists.debian.org?subject=subscribe>List-Unsubscribe: <mailto:debian-user-request@lists.debian.org?subject=unsubscribe>Precedence: listResent-Sender: debian-user-request@lists.debian.org List-Archive: [🔎] M9Er2Er--3-2@tuta.io">https://lists.debian.org/msgid-search/[🔎] M9Er2Er--3-2@tuta.io Resent-Date: Sun,  7 Jun 2020 17:38:07 +0000 (UTC)

13 juin 2020 à 09:52 de andy@strugglers.net:

> Looking at the email concerned, it had a line starting with "From"
> quoted with a ">".
Indeed! I hope it's not a mistake of mine (usually I proofread my emails before sending them but who knows...).

> Mailing lists often do things like that, breaking DKIM.
Why would they do that? ">" is rather usually indicated to insert quotations isn't it?

13 juin 2020 à 09:56 de andy@strugglers.net:

> I will add that I recall that Debian postmasters have been asked
> before about making changes to accommodate receiving sites that are
> strict about DKIM, and they explicitly declined to do so. I think
> that was more in the context of rewriting the mail's From header
> though (not preventing body changes as is the case here).
Thanks for the feedback.
If it's Debian ML responsibility, better to know it because my email provider won't be able to do anything about fixing the issue.


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