How to Create an Email Alias in Outlook and Outlook.com

Outlook.com permits up to 10 aliases at a time

Person wearing as mask using laptop

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In Outlook.com, an alias can be an email address or phone number. Use aliases to respond to people with a different email address from the same account. For example, if you have an Outlook.com email address for work, set up an alias for personal email. Or, if you changed your name and prefer to use it with your existing account, set up an alias to keep your contacts and archived email.

Instructions in this article apply to Outlook 2019, 2016, Outlook.com and Outlook Online.

Create an Outlook Alias Email Address

In the Outlook desktop program, you can also add other email accounts to use as aliases. Once you've added an email to Outlook, using that account as an alias is simple. See the steps below:

  1. Go to the Home tab and select New Email.

    Outlook with the New Email button highlighted
  2. If you've successfully added an alias, you should see a dropdown menu next to From. Select From, then select one of your aliases.

    A new email in Outlook with the From menu highlighted
  3. Or if you don't want to use an added account, select Other Email Address.

    Selecting to send from another email address in Outlook.
  4. In the field labeled From, enter the email address you want to send from.

    The Send From Other Email Address dialog in Outlook.
  5. Select the dropdown menu Send Using and select which email address you want to actually send the email from.

    Send Using menu in Outlook
  6. Select OK.

    Send Using menu in Outlook with the OK button highlighted
  7. Compose and send your email.

Create an Outlook.com Alias Email Address

Microsoft permits users to have up to 10 aliases on their accounts at any given time, and you can use any of them to work in Outlook.com.

To set up a new Microsoft alias email address you can use with your Outlook.com mail account:

  1. Sign in to the Microsoft account website.

    The Microsoft account login webpage screenshot
  2. Select Your info.

    Outlook with the Your Info button highlighted
  3. Select Manage how you sign in to Microsoft.

    Your Info screen with the
  4. If you use two-factor authentication, request and enter the necessary code.

  5. In the Manage how you sign in to Microsoft page, select Add email.

    Add email option on Manage how you sign in screen
  6. To add an email address you already have, select Add an existing email address as a Microsoft account alias. Or, to use a new address as an alias, select Create a new email address and add it as an alias.

    Adding an alias for Microsoft account login screenshot
  7. Select Add alias.

    Add Alias button
  8. If prompted, enter your password again for security purposes, then select Sign in.

    Prompt to enter password in again for security reasons screenshot
  9. Your newly added alias is listed on the Manage how you sign in to Microsoft page under Account alias.

    Microsoft account website showing the newly added alias screenshot

Your primary Outlook.com email address is the one you use to open your Microsoft account. You can sign into your account with any of your aliases.

About Microsoft Aliases

All of your Microsoft aliases share the same Outlook.com inbox, contact list, password, and account settings as your primary alias, although some of this can be changed. You can opt to turn off the sign-in privileges of an alias you hand out to strangers to protect your information. Other notes:

  • An existing @hotmail.com, @live.com, or @msn.com address cannot be used as an alias.
  • An alias that is already associated with another Microsoft account cannot be used.
  • The primary alias for an account can be changed at any time.

Remove an Alias from Outlook.com

To remove an alias from your account: 

  1. Sign in to the Microsoft account website.

    The Microsoft account login webpage screenshot
  2. Go to Your info.

    Outlook with the Your Info button highlighted
  3. Select Manage how you sign in to Microsoft.

    Your Info screen with the
  4. In the Manage how you sign in to Microsoft page, select Remove next to the alias you want to remove from your account.

    Remove button
  5. In the Are you sure you want to remove this alias from your account dialog box, select Remove.

    Confirmation screen to remove an alias with the Remove button highlighted
  6. You may be prompted to enter your password in for security measures.

Removing an alias does not prevent it from being used again. To completely delete an alias, you have to close your Microsoft account, which means you lose access to your inbox. The conditions surrounding the reuse of an alias vary as follows:

  • If the alias you remove was an email address from a non-Microsoft domain (such as @gmail.com), it is available to be added as an alias on another Microsoft account immediately.
  • If the alias you remove is an email address from Outlook.com, it can be recreated as a new account or alias after a 30-day waiting period.
  • Email addresses from @hotmail.com, @live.com, or @msn.com cannot be added again as an alias to any Microsoft account after they are removed.