set up a 2nd email domain in my microsoft exchange account.

I am looking for help to set up a 2nd email domain in my Microsoft Exchange account; my current email domain is other with go daddy, and set up in microsoft exchange. I do have the necessary access details for my Microsoft Exchange account. I will also require assistance with setting up a new domain with go daddy and ensure the new email is working in my exchange. I am looking for an experienced freelancer who can quickly and efficiently setup the 2nd domain for me. Thanks!