From c4db97ea7abdb27a2ba4787d84954fa8c181c3a0 Mon Sep 17 00:00:00 2001
From: Antoine Nguyen <tonio@ngyn.org>
Date: Sat, 31 Mar 2018 14:27:37 +0200
Subject: [PATCH] Updated README.

---
 README.rst | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/README.rst b/README.rst
index f24c596..bed8d5f 100644
--- a/README.rst
+++ b/README.rst
@@ -65,6 +65,26 @@ a previous one using the ``--version`` option::
 If you want more information about the installation process, add the
 ``--debug`` option to your command line.
 
+Change the generated hostname
+-----------------------------
+
+By default, the installer will setup your email server using the
+following hostname: ``mail.<your domain>``. If you want a different
+value, generate the configuration file like this::
+
+  $ ./run.py --stop-after-configfile-check <your domain>
+
+Then edit ``installer.cfg`` and look for the following section::
+
+  [general]
+  hostname = mail.%(domain)s
+
+Replace ``mail`` by the value you want to use and save your
+modifications.
+
+Finally, run the installer without the
+``--stop-after-configfile-check`` option.
+
 Let's Encrypt certificate
 -------------------------