From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <c.heiss@proxmox.com>
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))
(No client certificate requested)
by lists.proxmox.com (Postfix) with ESMTPS id 8349791D30
for <pmg-devel@lists.proxmox.com>; Mon, 20 Mar 2023 11:36:33 +0100 (CET)
Received: from firstgate.proxmox.com (localhost [127.0.0.1])
by firstgate.proxmox.com (Proxmox) with ESMTP id 65B3128F2
for <pmg-devel@lists.proxmox.com>; Mon, 20 Mar 2023 11:36:03 +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))
(No client certificate requested)
by firstgate.proxmox.com (Proxmox) with ESMTPS
for <pmg-devel@lists.proxmox.com>; Mon, 20 Mar 2023 11:36:02 +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 23D2B45A38
for <pmg-devel@lists.proxmox.com>; Mon, 20 Mar 2023 11:36:02 +0100 (CET)
From: Christoph Heiss <c.heiss@proxmox.com>
To: pmg-devel@lists.proxmox.com
Date: Mon, 20 Mar 2023 11:35:48 +0100
Message-Id: <20230320103548.382757-5-c.heiss@proxmox.com>
X-Mailer: git-send-email 2.39.2
In-Reply-To: <20230320103548.382757-1-c.heiss@proxmox.com>
References: <20230320103548.382757-1-c.heiss@proxmox.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
X-SPAM-LEVEL: Spam detection results: 0
AWL -0.070 Adjusted score from AWL reputation of From: address
BAYES_00 -1.9 Bayes spam probability is 0 to 1%
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
Subject: [pmg-devel] [PATCH v2 pmg-docs 4/4] pmgconfig: Explain new TLS
inbound domains configuration
X-BeenThere: pmg-devel@lists.proxmox.com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Proxmox Mail Gateway development discussion
<pmg-devel.lists.proxmox.com>
List-Unsubscribe: <https://lists.proxmox.com/cgi-bin/mailman/options/pmg-devel>,
<mailto:pmg-devel-request@lists.proxmox.com?subject=unsubscribe>
List-Archive: <http://lists.proxmox.com/pipermail/pmg-devel/>
List-Post: <mailto:pmg-devel@lists.proxmox.com>
List-Help: <mailto:pmg-devel-request@lists.proxmox.com?subject=help>
List-Subscribe: <https://lists.proxmox.com/cgi-bin/mailman/listinfo/pmg-devel>,
<mailto:pmg-devel-request@lists.proxmox.com?subject=subscribe>
X-List-Received-Date: Mon, 20 Mar 2023 10:36:33 -0000
Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
Changes v1 -> v2:
* Rename 'TLS inbound policy' to 'TLS inbound domains'
* Add link to postconf(5) section for `reject_plaintext_session`
pmgconfig.adoc | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/pmgconfig.adoc b/pmgconfig.adoc
index fea26db..9a57d06 100644
--- a/pmgconfig.adoc
+++ b/pmgconfig.adoc
@@ -97,6 +97,10 @@ Stores your subscription key and status.
TLS policy for outbound connections.
+`/etc/pmg/tls_inbound_domains`::
+
+Sender domains for which TLS is enforced on inbound connections.
+
`/etc/pmg/transports`::
Message delivery transport setup.
@@ -495,6 +499,13 @@ This can be used if you need to prevent email delivery without
encryption, or to work around a broken 'STARTTLS' ESMTP implementation. See
{postfix_tls_readme} for details on the supported policies.
+Additionally, TLS can also be enforced on incoming connections for specific
+sender domains by creating a TLS inbound domains entry. Mails with matching
+domains must use a encrypted SMTP session, otherwise they are rejected. All
+domains on this list have the
+https://www.postfix.org/postconf.5.html#reject_plaintext_session[`reject_plaintext_session`]
+postfix parameter set.
+
Enable TLS logging::
To get additional information about SMTP TLS activity, you can enable
--
2.39.2