If you want to do a little more, eg. use procmail filters, you should set your mail to be delivered to your Inbox in UCC and then create a .forward file. Add this line to your .forward file:
"|IFS= && exec /usr/bin/procmail || exit 75 #username"
With username your username.
This is the classic way to handle a mail account.
Start you favourite email client and fill out mail.ulyssis.org as POP or IMAP server. You are encouraged to enable SSL to protect your password as it is being sent over the network.
Ulyssis offer webmail through http://webmail.ulyssis.org.
You can also use the KUL webmail program (where you need to select ULYSSIS as server): http://webmail.kuleuven.be.
This is the die-hard way of reading your mail. Connect to one of our servers through ssh and start a mail client like pine or mutt.