I've followed the article on Microsoft TechNet on removing the last legacy Exchange 2003 server, but I'm running into an error when running the last command:
Remove-ADPermission "dc=<Domain>" -user "<RootDomain>\Exchange Servers" -AccessRights WriteDACL -InheritedObjectType Group
When I run this command in the Exchange Management Shell, I get an error that says,
"Remove-ADPermission: "dc=<my domain name>" was not found. Please make sure you have typed it correctly."
Can anyone shed any light on this one? Does this mean that this command has alrady been exectued previously?