With Microsoft Exchange Server 2010 you can achieve new levels of reliability and performance with features that simplify your administration, help protect your communications, and delight your users by meeting their demands for greater mobility.

Microsoft Exchange Server is a flexible and reliable messaging platform that can help you lower your messaging costs by 50-80%, increase productivity with anywhere access to business communications, and safeguard your business with protection and compliance capabilities that help you manage risk.

The Standard CAL allows for the use of e-mail, shared calendaring, contacts, task management, Outlook Web Access, and Exchange Active Sync.