Add email aliases to a user

You must have admin permissions to do this.

Use the new admin center to add an email alias to a user

The new admin center is available to all Microsoft 365 admins. You can opt in by selecting the Try the new admin center toggle located at the top of the Home page.

1. In the admin center, go to the Users > Active users page.
2. On the Active Users page, select the user > Manage email aliases. You won't see this option if the person doesn't have a license assigned to them.
3. Select + Add an alias and enter a new alias for the user.
4. When you're done, choose Save changes.
5. Wait 24 hours for the new aliases to populate throughout Office 365.
6. When the user replies, the From address will be her primary email alias. 
   For example, let's say a message is sent to Sales@NodPublishers.com, and it arrives in Eliza's inbox. When Eliza replies to the message, her primary email address will appear as the sender, not Sales@NodPublishers.com.

Use the old admin center to add an email alias to a user

1. In the admin center, go to the Users > Active users page.
2. On the Active Users page, select the name of the person you want to edit.
3. Next to Username / Email Aliases, select Edit.
4. 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 email alias by using the drop-down list. Then select Add.

5. When you're done, select Save.

6. Wait 24 hours for the new aliases to populate throughout Office 365.

7. When the user replies, the From address will be her primary email alias. 

For example, let's say a message is sent to Sales@NodPublishers.com, and it arrives in Eliza's inbox. When Eliza replies to the message, her primary email address will appear as the sender, not Sales@NodPublishers.com.