Since removing a domain that was no longer required I am seeing lots of errors in the application log on my Exchange 2013 server, MSExchange ADAccess event id 4027 with the error:
Unable to find a suitable directory server for domain 'domain.local' ---> No suitable domain controller was found in domain 'domain.local'
The domain had users in it which were all migrated using ADMT and then each DC was demoted and the domain removed.
How can I stop these errors appearing as it appears Exchange is still trying to contact the domain?