|Message:||Could not establish a signed Kerberos LDAP connection to %1. Please ensure the domain controller %1
is running Windows 2000 SP3 or later.
This Error event indicates that the Exchange server could not establish a signed Kerberos LDAP connection to domain controller %1 because the domain controller was not running the required version of Windows Server. Microsoft Exchange Server 2007 requires at least one Windows Server 2003 Service Pack 1 global catalog server in every Windows site to support Active Directory change notification.
To resolve this error, do one or more of the following:
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.