How many aliases can I have in Microsoft Outlook?

Asked 25-Jan-2022
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An alias in is an email address that you can use to respond to people who have a different email address from your account. Set up an alias for the personal email if you have an email address for work. Set up an alias to maintain your contacts and archived email if you changed your name and want to utilize it with your existing account.
At any given moment, Microsoft allows users to have up to 10 aliases on their accounts, and you can use any of them to operate in
Although some of this can be modified, all of your Microsoft aliases share the same inbox, contact list, password, and account settings as your primary alias. To protect your information, you can disable the sign-in rights of an alias you give out to strangers. Other considerations:

  1. As an alias, you can't use an existing,, or address.
  2. An alias that is already associated with another Microsoft account can be used.
  3. You can alter an account's primary alias at any time.

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