Please note: a new version, Exchnage Connector 3.1 is now available for System Center 2012R2 Service Manager. You can download it from here.
Exchange Connector connects Service Manager to Exchange for processing incoming emails related to work items. Once Exchange Connector has been configured to monitor exchange mailboxes, it can be used to create and update work items based on templates specified by the admin. By specifying special keywords to look for in the incoming emails, admins can configure Exchange Connector to perform actions like approving or rejecting review activities, or enable activity implementers to mark activities assigned to them as completed.
7/2011 - Version 2.0 (supported with System Center Service Manager 2010)
4/2013 - Version 3.0
10/2013 - Version 3.0 re-release