Added DKIM server into the mix

README.md

@@ -45,23 +45,20 @@ container and run `doveadm pw -s <scheme-name>` inside.
 
 4) Change the hostname in file `/opt/dockermail/settings/myhostname` to the correct fully qualified domain of your server.
 
-5) Build container
+5) Add DKIM settings files: `/opt/dockermail/settings/opendkim.conf` and `/opt/dockermail/settings/mail.private`
+   See https://help.ubuntu.com/community/Postfix/DKIM on the info about these settings.
+
+6) Build container
 
     make
 
-6) Run container and map ports 25 and 143 from the host to the container.
+7) Run container and map ports 25 and 143 from the host to the container.
    To store your mail outside the container, map `/opt/dockermail/vmail/` to
    a directory on your host. (This is recommended, otherwise
    you have to remember to backup your mail when you want to restart the container)
 
    `docker run -d -p 25:25 -p 587:587 -p 143:143 -v /opt/dockermail/settings:/mail_settings -v /opt/dockermail/vmail:/vmail dovecot_made_special/2.1.7`
 
-7) Enjoy.
-
-
-Known issues / Todo / Wishlist
-==============================
-
-- It would be nice to have a way of catching mail to all subdomains.
+8) Enjoy.
 
 Patches welcome!