The Linked ActiveSync Servers panel lets you link the user source to one or more ActiveSync Servers. When a user in the user source enrolls a device, the linked ActiveSync Servers are used to provide the user’s email on the device.
In ZENworks Control Center, click Users (in the left navigation pane) to display the User Sources list.
Click Details next to the user source to display its property pages.
Click the Mobile Management tab.
In the Linked ActiveSync Servers panel, click Add, select an ActiveSync Server from the list and click OK.