The Autodiscover service for ActiveSync in an Exchange 2007 environment does not work for users in sites that do not have the ExternalURL property set

In a Microsoft Exchange Server 2007 environment, the Autodiscover service for ActiveSync does not work for users in sites that do not have the ExternalURL property set. If a site does not face the Internet, the ExternalURL property is not set. Therefore, the Autodiscover service for ActiveSync works only within the site. Users who are in a site that does not face the Internet cannot be discovered. Additionally, mobile device users are requested to enter the server name manually.

Update information

To resolve this problem, install Update Rollup 4 for Exchange Server 2007 Service Pack 1 (SP1) on the Exchange server. For more information about Update Rollup 4 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic: For more information about how to obtain the latest Exchange service pack or update rollup, see the following Exchange Help topic:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about Exchange ActiveSync Autodiscover Settings, visit the following Microsoft Web sites: