To view your email using one of our webmail applications you will need to visit http://webmail.extend.net when you get to this page you will need to enter your email address and email password. once entered you will  be given 3 options for reading mail. Choosing the right webmail client is a matter of preference. However the options given to you here are Horde which is the most feature rich, Roundcube which is a middle of the road and SquirrelMail which is the lightest and simplest to use