webmail url [solved] I have installed Roundcube, and it is working fine but I have some questions about the url to access them. I can access from http://clientdomain.com:8080/webmail Why I need to use port 8080? How can I access without typing port? How I can do a subdomain for access from http://webmail.clientdomain.com/ to Roundcube? Can I do that it automatically for a new sites ? I have checked /etc/roundcube/main.inc.php & /etc/roundcube/apache.conf but I haven't seen anything port related.