Take the following simple steps to create an email account on your domain name (eg best@your-domain)
- Login to your control panel and click on Email Accounts.
- Fill in the name you want and select the domain name from the drop-down.
- Type the desired password twice.
- Change the quota if you want.
- Click Create.
Note that by default you have no email address set up. Your cPanel user name may seem like its a set up email, but if you wish to use it, you have to add it an email account.