Say my Microsoft account is *** Email address is removed for privacy ***.  My email with custom domain mydomain.com is currently hosted by Google Apps. I want to move my email hosting from Google Apps to Live Admin Center.

Now, say I have another Microsoft account *** Email address is removed for privacy *** that I will use for Live Admin Center. If I now setup mydomain.com in Live Admin Center, can I migrate the existing *** Email address is removed for privacy *** as an email account within the Live Admin Center mydomain.com account?