Outlook.com, Hotmail, Live, and MSN email accounts are powered by Outlook.com.
Note: Outlook.com is being currently being updated. Some people will still see the Classic version until we complete the update, and others will see the new Outlook.com experience. For more information about these updates, see Welcome to Outlook.com.
The links in this article will help you find the information you're looking for.
For information specifically about the new beta experience, see the following topics: