From 6dbf7eb0e0d35fb33e97ac0f495f4241b4f9eacf Mon Sep 17 00:00:00 2001
From: liquidat <liquidat@bayz.de>
Date: Sun, 17 May 2020 01:50:42 +0200
Subject: [PATCH] Setup, compose: add note about reverse DNS

---
 setup/templates/steps/compose/03_expose.html | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/setup/templates/steps/compose/03_expose.html b/setup/templates/steps/compose/03_expose.html
index bde4e84b..93c2147f 100644
--- a/setup/templates/steps/compose/03_expose.html
+++ b/setup/templates/steps/compose/03_expose.html
@@ -52,7 +52,9 @@ avoid generic all-interfaces addresses like <code>0.0.0.0</code> or <code>::</co
 hostnames. Every e-mail domain that points to this server must have one of the
 hostnames in its <code>MX</code> record. Hostnames must be comma-separated. If you're having
 trouble accessing your admin interface, make sure it is the first entry here (and possibly the
-same as your <code>DOMAIN</code> entry from earlier.</p>
+same as your <code>DOMAIN</code> entry from earlier). Also make sure that the first entry in
+this list resolves to the IP address of your server, and that the reverse DNS entry for
+the IP address of your server resolves to this first entry in this list.</p>
 
 <div class="form-group">
   <label>Public hostnames</label>