James, thats OK thats how it should be - I can only hazard a guess that the config.php is not being read.. what;s the output of
ls -la /usr/share/zarafa-webaccess/config.php
Perhaps consider removing and reinstalling zarafa-webaccess RPM?
Patrick, you would need to access using port 81 (because you have moved it to webconfig service). yourwebserver:81/webaccess-mobile
Gys, sorry I don't have an easy solution without breaking some other webserver function.... any httpd experts want to chip in and provide a subdomain HTTPS redirect using ProxyPass to the Zarafa Webaccess on port 84? even better if it forces HTTPS