Create an alias to give you an additional email address which uses the same inbox, contact list, and account settings as your primary email address in Outlook.com.

Follow the steps on this page to change the Microsoft account email address or phone number (also known as your account alias or username) that you use to sign in.

Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

An alias is another email address or phone number that works with the same Microsoft account. When you change your email address, you have the choice of creating a new Outlook.com …

Learn how to send and reply to mail using a different alias or email address in Outlook.com.

To get around the error, use an alias that is not blocked for sign-in. If you are not sure which account the blocked alias is associated with, select Forgot your username? and enter the alias …

When you have set up multiple email accounts, you can choose which account to use when you send a message.

On the Edit email addresses page, in the text box under Alias, type the first part of the new email alias. If you added your own domain to Office 365, you can choose the domain for the new …

You can make the new email or phone number the primary alias by selecting Make primary. You’ll then have the option to remove the old email address or phone number from your account.

You cannot add another Microsoft account (either current or closed) as an account alias, but you can add another Microsoft, Gmail, or work/school email to Outlook.

An alias is like a nickname for your account that can be an email address or a phone number. It uses the same inbox, contact list, and account settings as the primary alias. You can sign in to …