Add your Hover domain to Office 365 and change the nameservers to point to Office 36504:33

If your domain is registered at Hover and you want to use it with your Office 365 site, this video shows you how to verify that you own the domain, and then change your domain’s nameserver records. When you’re done, Office 365 will set up your services, like email and Lync, for you and your organization. Let’s get started!