The Exchange ActiveSync profiles allow you to configure your Windows Phone devices to access your Exchange ActiveSync server for email and calendar use.
Strongly consider only using certificates signed by a trusted third-party certificate authority (CA). Mistakes in your certificates expose your otherwise secure connections to potential man-in-the-middle attacks. Such attacks degrade the confidentiality and integrity of data transmitted between product components, and might allow attackers to intercept or alter data in transit.
The Exchange ActiveSync profile supports the native mail client and AirWatch Inbox for Windows Phone. The configuration changes based on which mail client you use.