Enabling Autodiscovery of Mailboxes for Exchange Online

To discover mailboxes automatically, add the AD group to the Exchange Online app.

After you enable automatic discovery on the app, when a backup operation runs for one of the mailboxes, users groups are automatically discovered and included in the backup.


  1. From the navigation pane, go to Protect > Applications > Office 365.

    The Office 365 apps page appears.

  2. In the App name column, click the app to which you want to add the mailbox.

    The app page appears.

  3. On the Content tab, click Add, and then click Add AD group.

    The Add AD group dialog box appears.

  4. From the Exchange plan list, select a plan.
  5. From the Select AD groups list, select one or more mailboxes on which you want to enable autodiscovery.
  6. Click Save.

What to Do Next

To automatically discover new user accounts, run a backup operation on the autodiscovery-enabled mailboxes.

Last modified: 8/25/2020 7:05:02 AM