You can use IT policies to control the behavior of BlackBerry® devices and the BlackBerry® Desktop Software. When you associate a new BlackBerry device user with the BlackBerry® Enterprise Server in a BlackBerry Domain, the BlackBerry Enterprise Server automatically sends to the BlackBerry device the IT policy that you assigned to the Chalk™ Pushcast™ Software user account or group. By default, if you do not assign an IT policy to the user account or group, the BlackBerry Enterprise Server sends the Default IT policy. If you delete an IT policy that you assigned to the user account or group, the BlackBerry Enterprise Server automatically re-assigns the Default IT policy to the user account and resends the Default IT policy to the BlackBerry device.