The Exchange environment I've inherited still lists a second domain controller (that does not physically exist anymore - it was removed years ago but obviously wasn't decomissioned from Exchange properly at the time) under Administrative Groups, PPA, Servers.
When I try to remove it, it says users with mailbox store exist on this server.
Is there a way I can list users with mailbox stores on this non-existant server? Little confused as to how to clean it up in Exchange. It doesn't show in Active Directory when I look.