Topic Last Modified: 2009-01-21

The Microsoft Exchange Server Best Practices Analyzer examines the Active Directory directory service to determine whether Client Access servers in the Exchange organization are members of the Exchange Servers security group. If the Best Practices Analyzer determines that a Client Access server is not a member of the Exchange Servers security group, the tool generates the following error message:

Client Access Server <ServerName> does not have 'Exchange Servers' group membership. This will cause Outlook Web Access public folder access to fail with an HTTP 404 Not Found error.

If the Client Access server is not a member of the Exchange Servers security group, Outlook Web Access users who have mailboxes that are hosted on that particular Client Access server receive the following error message when they try to access a public folder:

HTTP Error 404 - File or directory not found. Internet Information Services (IIS)

To access public folders from a mailbox that is hosted on a Client Access server, the Client Access server must be a member of the Exchange Servers group. The Exchange Servers group has the permissions that are required to access other Exchange servers under the correct context.

To address this issue, add the Client Access server to the Exchange Servers group.

To add a server to the Exchange Servers group

1. On a domain controller, click Start, click Run, type dsa.msc, and then click OK.

2. In the Active Directory Users and Computers snap-in, locate the appropriate domain, and then click the Microsoft Exchange Security Groups container.

3. In the details pane, double-click Exchange Servers.

4. Click the Members tab, and then add the Client Access server to the Members list.

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