To set up your email address log into cPanel (http://yourdomainname/cpanel) using your username and password. From the front page of your cPanel select the mail option "Email Accounts". Then in the fields provided under 'Add a New Email Account' enter the name that you would like to use from the domains hosted on that account and the password to protect the account.

Emails will then be stored on the server until you choose to download them to your desktop mail client or you can choose to access the mail server using "http://yourdomain.com/webmail"

In your email client (email program such as Outlook) enter the following details:
"Incoming Mail (POP3 server)": mail.domainname.com
"Outgoing Mail (SMTP server)": this should be given to you by your dial-up or ADSL Internet Service Provider (ISP)
"Username": Your email address
"Password": Email password