The HTC Exchange
Active Sync configuration enables you to configure Microsoft Exchange email
settings on HTC devices running Android. User devices require the XenMobile agent to receive the configuration.
XenMobile supports HTC API version 0.5.0.
If you want to encrypt email attachments that pass through your Microsoft Exchange servers, Citrix recommends that you migrate your users to WorxMail and ShareFile rather than configuring email attachment encryption policies.
For more information about WorxMail, see Using WorxMail.