From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (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) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 15F349570D for ; Tue, 27 Feb 2024 11:33:41 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id F18661B28E for ; Tue, 27 Feb 2024 11:33:40 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (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) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Tue, 27 Feb 2024 11:33:37 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 586694775B for ; Tue, 27 Feb 2024 11:33:37 +0100 (CET) From: Maximiliano Sandoval To: pmg-devel@lists.proxmox.com Date: Tue, 27 Feb 2024 11:33:35 +0100 Message-Id: <20240227103335.193474-1-m.sandoval@proxmox.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.018 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pmg-devel] [PATCH pmg-docs v2] dkim: document dkim_use_domain X-BeenThere: pmg-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Mail Gateway development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Feb 2024 10:33:41 -0000 Signed-off-by: Maximiliano Sandoval --- Differences from v1: - Add links to RFCs - Use `+` for new lines in the same section asciidoc/asciidoc-pmg.conf | 3 +++ pmgconfig.adoc | 12 ++++++++++++ 2 files changed, 15 insertions(+) diff --git a/asciidoc/asciidoc-pmg.conf b/asciidoc/asciidoc-pmg.conf index 45ea7dd..6c9f0bb 100644 --- a/asciidoc/asciidoc-pmg.conf +++ b/asciidoc/asciidoc-pmg.conf @@ -21,7 +21,10 @@ clamav=https://www.clamav.net[ClamAV(R)] debian=https://www.debian.org[Debian] debian_nonfree_archive_area=https://www.debian.org/doc/debian-policy/ch-archive#the-non-free-archive-area[Debian's non-free archive area] tts=http://www.template-toolkit.org[Template Toolkit] +smtp_rfc=https://tools.ietf.org/html/rfc5321[RFC 5321] +rfc_5322=https://tools.ietf.org/html/rfc5322[RFC 5322] dkim_rfc=https://tools.ietf.org/html/rfc6376[RFC 6376] +dmarc_rfc=https://tools.ietf.org/html/rfc7489[RFC 7489] ifndef::docinfo1[] author=Proxmox Server Solutions GmbH email=support@proxmox.com diff --git a/pmgconfig.adoc b/pmgconfig.adoc index bf3887e..33d35fb 100644 --- a/pmgconfig.adoc +++ b/pmgconfig.adoc @@ -585,6 +585,18 @@ Controls whether all outbound mail should get signed or only mails from domains listed in `/etc/pmg/dkim/domains`, if it exists and `/etc/pmg/domains` otherwise. +Select Signing Domain:: + +Determines whether to DKIM sign emails using the domain found in the envelope +from or the from header in the body of the email. The envelope from is also +known as reverse-path, see {smtp_rfc} section 3.3 and {rfc_5322} section 3.6.2. ++ +The envelop from of certain emails, bounces for example, can be empty. In these +cases it is desirable to sign them using the domain found in the from header. ++ +Additionally, DMARC (see {dmarc_rfc} section 3.1.1) needs the domain found in +the from header in certain situations. + These settings are saved to the 'admin' subsection in `/etc/pmg/pmg.conf`, using the following configuration keys: -- 2.39.2