From 66ec658d85e7e599fa857eddc18028378305c684 Mon Sep 17 00:00:00 2001 From: Karel Balej Date: Mon, 30 Mar 2026 21:46:05 +0200 Subject: [PATCH] docs: mention rDNS in the setup tutorial --- docs/tutorials/setting-up.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/tutorials/setting-up.md b/docs/tutorials/setting-up.md index 240caa80..04de75fd 100644 --- a/docs/tutorials/setting-up.md +++ b/docs/tutorials/setting-up.md @@ -103,6 +103,11 @@ one as "primary". Add all other domains to the `local_domains` line: $(local_domains) = $(primary_domain) example.com other.example.com ``` +Do not forget to set a suitable rDNS (PTR) record for your server's IP address +to reduce the chances of outgoing mails getting marked as spam or being +downright rejected. Ideally, the PTR record should match whatever you specified +in `$(hostname)`. + ## TLS certificates One thing that can't be automatically configured is TLS certs. If you already