Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

Topic Last Modified: 2009-10-14

In a Microsoft Exchange Server 2010 organization, Microsoft Office Outlook Web App is provided by a Client Access server. If you have multiple Active Directory sites that have Client Access servers that can be reached from the Internet, you can use redirection to route users to the Client Access server that will give them the best Outlook Web App experience. If you have multiple Client Access servers in different Active Directory sites in an organization, and only one is exposed to the Internet, you can use Client Access server-to-Client Access server proxying to direct users to the Client Access server that will give them the best Outlook Web App experience.