This article will show you how to create a new alias email address for a Hosted Exchange mailbox.
With Hosted Exchange, you can create “alias” email addresses on your domain which receive incoming mail and direct it to one individual.
An example of this would be if John Citizen had an email address of firstname.lastname@example.org but he also needed any mail sent to email@example.com to come to him. Because an alias is just an email address rather than an actual mailbox, there are no extra fees to create them.
Note: You will not be able to send from the Alias email address or setup the Alias email address in your email client.