Topic Last Modified: 2009-02-04

The Microsoft Exchange Server Best Practices Analyzer examines the service principal name (SPN) entries for Exchange Server 2003-based servers. The Best Practices Analyzer generates an error message if the following conditions are both true:

If these SPNs are registered on an Exchange 2003-based server that is not also a global catalog server, you experience the following symptoms in your Exchange organization:

To address these issues, configure the exchangeAB resources in the Active Directory directory service. To do this, see Microsoft Knowledge Base article 927612, You are repeatedly prompted to enter your credentials when you try to connect to an Exchange mailbox by using Outlook 2007.