On my Exchange server I ran the best practice analyzer tool and received the following error message.
Access control list (ACL) inheritance is blocked for the Exchange database object (CN=Mailbox Store (RECARO2),CN=First Storage Group,CN=InformationStore,CN=RECARO2,CN=Servers,CN=RNA-EMAIL,CN=Administrative Groups,CN=Recaro North America,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=recaro_nao,DC=ad). This may cause mail flow problems, store mounting issues and other service outages. Follow Microsoft Knowledge Base article 264733 and use the Exchange System Manager to re-enable inheritance on this object.
I have read the TechNet article on how to resolve this but, I am unsure what object in the Exchange System Manager I will need to edit to enable the Inheritance, after creating the new registry entry to see the security tab. Any assistance is appreciated.