1. Access your email account by using "webmail." and your domain name (i.e. webmail.yourdomain.com).
2. Login using your username (i.e. email@example.com) and password.
3. Click "Contacts" in the upper left hand corner.
4. Then click "Add Contact" and add necessary information.
5. Once all information is filled click "Save"
Once the email address has been added, it should appear in your Contact List. You can access your Contact List by clicking on the "Contacts" tab in the upper left hand corner.