In the Office 2013 preview, Outlook doesn’t automatically setup @Live email accounts.  I’m guessing this is just an oversight in the preview. To work around this you need to set up the account manually and specify the server as m.hotmail.com

In the Add Account screen select “Manual ….

In the next screen select Exchange ActiveSync :

Next when adding your account information, specify the server as m.hotmail.com

Enjoy.