1. From your control panel home page, click E-Mail.
2. At the bottom of the page that appears, click Add new mail
resource.
3. Choose Mailbox from the drop-down list and click Next.
4. Enter the name and password for the new mailbox and click Submit.
Important: You get Postmaster mailbox for free and you can neither
delete it nor change its quota. Webmaster is a regular mailbox
and it counts towards your total maiboxes.