If you haven’t added other accounts to your Outlook.com account, check out our article on how to add Gmail to Oultook.com. Adding other Microsoft Live, Hotmail, and Outlook.com addresses are even easier.
After you’ve added your other account(s) when composing a new message, click your name in the upper left corner and select eh one you want to send the message from.
Also, if you have the main account you use most often, you can set it as your default in Outlook.com.
Comment Name * Email *
Δ Save my name and email and send me emails as new comments are made to this post.