Procedure

1. Click Devices on the menu bar.
   The Devices screen displays.
2. Click the Exchange ActiveSync Devices tab.
3. Select a mobile device for which you want to allow or block access to Exchange Server.
4. Click Allow Access or Block Access and then click OK on the confirmation dialog box.
   The mobile device status in the Exchange Access State column displays the new status after the mobile device syncs with the Exchange Server.