Event ID - 9188

Event Id9188
DescriptionMicrosoft Exchange System Attendant failed to read the membership of group cn=Exchange Domain Servers,cn=Users,dc=your domain. Error code 80072030. Please check whether the local computer is a member of the group. If it is not, stop all the Microsoft Exchange services, add the local computer into the group manually and restart all the services. For more information, click http://www.microsoft.com/contentredirect.asp.
Event InformationCAUSE: This behavior occurs because the security group object that is specified in the error message is no longer in the Users container, which is where Exchange Server expects the object to be.
RESOLUTION: To resolve this behavior, move the security group that is specified in the error message back to the Users container.
Reference LinksMicrosoft Exchange System Attendant Event ID 9188

Error c1038a21 occurs when you open the properties of a public folder

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