By default, when a user configures a new mobile device to synchronize GroupWise data, the device can immediately connect to your Mobility system and start synchronizing data. If you prefer, you can configure your Mobility system to prevent new devices from connecting until you allow access.
In the Mobility Admin console, click Config, then click Device to display the Device Sync Agent Configuration page.
Select Enable in the Quarantine New Devices field so that new devices cannot connect to your Mobility system until you allow them to.
Click Save to save the new setting(s).
Restart the Mobility Service:
gms restart
Configure the Mobility Service to notify you when users connect new devices.
For instructions, see Enabling System and Service Notifications.