Delete my Microsoft 365 email alias
If you’re no longer interested in using an email alias, you can delete it from the Email & Office Dashboard. After you’ve deleted an email alias, you can create a different email address with that same name.
- Sign in to your Email & Office Dashboard.
- Select Admin > Email Aliases.
- Select the trash button next to the email alias you want to delete.
- Select Delete. After an alias is removed, it can be used in a new email address.
Note: Deleting an alias can take up to 24 hours to complete.