Are you looking for email hosting for your domain? i.e email like email@example.com ? You can use Google Apps - free version. Such Google Apps has officially been closed in 2012. But you may buy a legacy grandfathered domain from us with Google Apps - free for 10/25/100 and even 3000 users (standard, non-profit & education). We'll then set your own domain as Primary Domain and start using Google Apps on your own domain for free for life.