[[File:Email-webmail-login.png|none|400px|thumb|Webmail Login Page]]
You can use either, simply use your email address and password to login.
As of October 2012, the Rouncube interface looks like this:
There are some nice features of Roundcube that may not be apparent straight away, such as:
SquirrelMail looks like this:
Using Squirrelmail should be self-explanatory, however there are some (brief) instruction on the [http://squirrelmail.org/docs/user/user.html SquirrelMail website].