Exchange ActiveSync

By default, when you install the Client Access server role on a computer that is running Microsoft Exchange Server 2007, you enable Microsoft Exchange ActiveSync. Exchange ActiveSync lets you synchronize a mobile device with your Exchange 2007 mailbox.

Exchange ActiveSync is an Microsoft Exchange synchronization protocol that is optimized to work together with high-latency and low-bandwidth networks. The protocol, based on HTTP and XML, lets devices such as browser-enabled cellular telephones or Microsoft Windows Mobile^® powered devices access an organization's information on a server that is running Microsoft Exchange. Exchange ActiveSync enables mobile device users to access their e-mail, calendar, contacts, and tasks and to continue to be able to access this information while they are working offline.

New features in Exchange Activesync:

Support for HTML messages
Support for follow-up flags
Support for fast message retrieval
Meeting attendee information
Enhanced Exchange Search
Windows SharePoint Services and Universal Naming Convention (UNC) document access
PIN reset
Enhanced device security through password policies
Autodiscover for over the air provisioning
Support for Out of Office configuration
Support for tasks synchronization
Direct Push