Newbie question! Installed having followed all the instructions with no reported errors. DNS etc appears to be working fine. However url for the domain resolves to SquirrelMail client page!
Most likely you created a vhost for squirrelmail, thats a optional setup in the guide, which now catches the domain name. The normal way to access squirrelmail is to use a alias like /webmail or /squirrelmail as described in the first part of the squirrelmail setup. If you created a vhost file for squirrelmail you should consider to remove it and restart apache.
