The Email tab creates real mailboxes on your domain.
Press Create: pick the name (the part before the @), the domain, a password, and a quota in MB - or unlimited, if the plan allows. The new address can send and receive within moments.
- Webmail - every mailbox row has a Webmail button; it opens the inbox in the browser, no setup at all.
- Change password - per mailbox, from its row.
- Usage - the row shows how much of the quota is used.
- Delete - removes the mailbox AND its stored mail. Download anything you need first.
For a phone or desktop mail app, use the mail server settings shown on the page; the username is the full address.
If the tab says no domains are available, the service has no domain yet - email lives on a domain.