We are in the final planning stages of moving Exchange 2003 (running on Server 2003 SP2) to Exchange 2007 (running on Server 2008 R2)
We have been following the guidelines and have run the Exchange Best Practices Analyzer. We are getting results stating that:
Active Directory domain 'DC=domain,DC=co,DC=uk' does not contain at least one domain controller running Windows Server 2003 Service Pack 1 or later. This is required for the '/PrepareLegacyExchangePermissions' task when updating existing domains that have been previously prepared for Exchange Server
Active Directory site 'Default-First-Site-Name' does not contain any global catalog servers running Windows Server 2003 Service Pack 1 or later. This will prevent Exchange 2007 servers from being installed into site 'Default-First-Site-Name'.
Slightly confusing as both are talking about Server 2003 SP1 or later and we are running Server 2008 R2 as DC, so why are we getting these messages. The Exchange 2003 box that is being replaced does use the domain provided by the 2008 R2 DC, and also the 2008 is the global catalog
So any advice as to why we are getting these messages where, as far as we are concerned, the Global Catalog and the DC are configured correctly and, obviously as they are running 2008, meet the prerequisites of "Windows Server 2003 SP1 or later". Slightly confusing