Domains.live.com – Transfer Domain/Emails to another live.com account

I registered with domains.live.com with my email *** Email address is removed for privacy *** and have a domain abc.com listed there in order to use the emails for that domain. Now I am quiting the use of *** Email address is removed for privacy *** and registered a new email address *** Email address is removed for privacy *** and I want to transfer abc.com under that account. What can I do? I don't want to lose the emails currently in the mailbox.