This article will explain how you can Purchase a mailbox.
Scroll down to the Email section, then click on the Manage email link.
Click on the Get more mailboxes link.
Choose between Personal or Professional, select how many mailboxes you wish to purchase and press BUY NOW to continue.
The mailbox will then be added to your basket and you will have the option to Find a domain or Go to checkout, click on Go to checkout.
Review the mailbox package and quantity, click on the Continue button.
Add any extras to your basket if required, click on the Checkout button to continue.
Then follow the steps on screen to complete your purchase.
When you have purchased your mailbox, you can configure it by following the steps in this guide.