I have installed ISPConfig succesfully and its working fine. I used the update option in Management for installing squirrelmail. Now squirrelmail is installed but issue is that I used www.mydomain.com during installation as hostname. When I want to access squirrelmail interface https://x.x.x.x:81/squirrelmail (x.x.x.x is server IP), it tries to access www.mydomain.com URL which I have changed in server management and also in /home/adminispconfig/ispconfig/lib/config.inc.php but whenever I try to access squirrelmail, the server tries to access www.mydomain.com which directs the browser to some other place.