Clients who have purchased OX App Suite can create and manage email aliases in the WHMCS Client Area by going to the Product Details page and clicking Manage Email Accounts.

Clicking on a specific mailbox's row will display the list of email aliases.

Clicking Delete for an existing email alias will delete it.

To add a new email alias, enter the desired name in the blank field at the bottom of the list of aliases and click Create. The alias will appear in the list and you will be able to send and receive email using that alias and mailbox immediately.