I'm having isses with the squirrelmail install, everything functions ok and i have access when I goto my setup domain.com/webmail or ip.add.re.ss/webmail but not client_site/webmail, i get 404 error:
The requested URL /webmail was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Just made the swith to ISPC3 and love it! Thanks guys!