[pmg-devel] [PATCH v2 pmg-docs 4/4] pmgconfig: Explain new TLS inbound domains configuration

[Christoph Heiss]

Signed-off-by: Christoph Heiss <c.heiss at 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