Windows Live Custom Domains is a free service that allows a customers to use a custom domain name with Windows Live Mail and Hotmail. This would also enable someone who owns a domain to allow users to sign up for an e-mail account without prior authorization from the administrator.
For example:
A user could buy a domain name like "smith.com" and associate it with their hotmail accounts using Windows Live Custom Domains.
VISIT: http://domains.live.com/