Gentlemen: I have followed the tut. "Perfect server Fedora 10 ISPConfig3" at number 23 Falko explains how to install and configure Squirrelmail. However, I prefer roundcube so instead of "yum install squirrelmail" in did "yum install roundcubemail" and to my surprise it installed ( with a few necessary dependencies ) But now it has to be configured with ISPConfig3 ... Can I safely follow this tut. " RoundCube Webmail On Your ISPConfig Server Within 10 Easy Steps" ? Out of curiosity I already tried www.example.com:81/roundcube and it returned an error "page can not be displayed" ( ofcourse ). Then I moved all files and directories to /var/www/html/roundcube and tried www.example.com/roundecube and it returned a roundcube page with "Database Error: Connection Failed" For the moment I will wait at number 23 of Falko's tut.