This is done through your website Control Panel. The steps are very simple and are outlined below:
1. Log into your website Cpanel. (See the FAQ explaining the Control Panel under "Website Admin".)
2. Click on the "Email Accounts" icon.
3. Put in the details you desire (usually 30-50 MB space is sufficient). Just fill in all the boxes with the desired details.
4. Click save.
There are 3 different ways to access your emails at your new address:
1. Over the web (See FAQ on "Webmail").
2. Configure it to work with Outlook Express or other email software (see FAQ on configuring email addresses with Outlook Express).
3. Add a forwarder/redirection to the address so it gets rerouted to an already existing address you have (see FAQ on redirecting email addresses).