Outlook Web Access (OWA) in Exchange 2007 lets you access your e-mail from any Web browser. Outlook Web Access is an ideal client for users who do not have access to Outlook, such as users who are traveling and rely on shared workstations for access to e-mail and calendar information. OWA is also a lower cost entry point for knowledge workers who only access email from their desktop.
OWA has been redesigned in Exchange 2007 to enhance the user experience and productivity in many ways. New features, such as smart meeting booking, Microsoft Windows SharePoint Services and Windows file share integration, and improvements in reminders and the address book give you a rich user experience from any computer that has a Web browser. There are two versions of OWA included in Exchange 2007: the full-featured OWA Premium client and the new OWA Light client. OWA Light is designed to optimize your OWA experience for mobile devices, slower connections, and browsers other than Internet Explorer. For more information about OWA, see Overview of Outlook Web Access.
Outlook Web Access Premium in Exchange Server 2007 SP1 adds many new features listed in Client Access Role. All of these features make OWA a more consistent user experience with the Outlook features they are used to.
For more information about new OWA features in Exchange Server 2007 SP1, see New Client Access Features in Exchange 2007 SP1.