Features Licensed by Exchange CALs

Client access to Exchange Server 2010 is licensed with two different Client Access Licenses (CALs), a Standard CAL (SCAL) and an Enterprise CAL (ECAL). Either CAL can be purchased for each user or for each accessing device, usually a PC.

The SCAL (pictured at the bottom) licenses Exchange’s basic features, including sending and receiving e-mail and storing e-mails in a personal mailbox; scheduling appointments and meetings and maintaining a personal calendar; storing a contacts database with e-mail and physical addresses, phone numbers, and other personal information; scheduling tasks and tracking their completion; and browser-based access. The SCAL also licenses a basic level of mobile device support (synchronizing data with mobile devices and providing basic administrative policies such as minimum mobile device password length), journaling (archiving of all messages sent to and from specified mailboxes), and retention policies (controlling how long messages in default folders are retained and what the system should do when a message reaches its retention age).