Scenario: A Citrix Engineer must provide remote users with access to their corporate e-mail from their mobile devices.

The engineer must ensure remote users' mobile devices meet the following requirements:

- Mobile devices require a PIN for corporate email.

- Mobile devices cannot be jailbroken.

- Mobile devices must be enrolled to XenMobile Device Manager.

- Only iOS devices will have access to corporate email.

Which component should the engineer include in the solution to enforce the requirements outlined in the scenario?