I am setting up Anywhere Access in Windows Server 2012 Essentials R2. I will have Exchange 2013 installed on another server. I currently have a Domain Name purchased from Register.com. For Essentials Anywhere Access can I use Microsoft Personalized Domain Name in Essentials setup wizard with the same domain name that I purchased from Register.com, or will Microsoft come back and say this domain name is taken? I am thinking it will say it is taken, in which case can I use another domain name different from Register.com from Microsoft without any domain name conflicts later when I configure Exchange and use the Register.com? Or could I use the domain name that I use from Microsoft to setup Anywhere Access for my Exchange email as well? If I do this last option, I will probably have to cancel my domain name from Register.com and hope that it will still be available when I configure Anywhere Access with Microsoft. Also if this last option is doable, how would I setup Exchange to work with the Microsoft Personalized Domain Name? I know it's a loaded question. Thanks for your help.