This is a known issue. Ignore it. 12639 is the correct signature value. Regards,
Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: chipsh...@comcast.net [mailto:chipsh...@comcast.net] Sent: Wednesday, March 10, 2010 6:50 AM To: MS-Exchange Admin Issues Subject: Domain has unknown Exchange signature Slowly doing a migration from Exchange 2003 SP2 to Exchange 2010. Using the MS Exchange Best Practices analyzer returns the Domain has an unknown Exchange signature. Ref: http://technet.microsoft.com/en-us/library/aa997081(EXCHG.80).aspx. My objectVersion is 12639. Exchange 2003 was NOT installed using a pre-release version. Additionally, when installing Exchange 2010, part of the install process was a domain prep. I'm trying to determine why this error occurs and if it is something I should take steps to try and correct knowing that the Exchange 2003 server (which is a domain controller) will eventually be retired from the network. If I leave it as it is what are the potential issues this may cause moving forward? Thanks. Steve
