Event ID - 1173

Event Id1173
SourceMSExchangeIS Mailbox Store
DescriptionError %2 deleting unused restricted view from folder %1 on database "%3". Microsoft Exchange Information Store will try to delete the view again at the next maintenance interval.
Event InformationAccording to Microsoft :

Explanation :
This Warning event indicates that an error occurred when deleting an unused restricted view from the folder specified in the event description. The error occurred during a database maintenance window. This event may occur if the restricted view to be deleted is locked by some background threads. In some cases, client-side tools such as desktop search engines may also lock these restricted views.
User Action :
This Warning event with error code 0x6bb can be safely ignored.For more information, see Article MS913126 in reference link.
If this event frequently occurs with a description mentioning all databases on this Exchange server, it may indicate a busy Exchange server. In such a case, review other related Error and Warning events in the Application log and System log. In addition, determine whether Outlook clients are reporting any performance issues.
Note : If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now.
Reference LinksMS913126

Event ID 1173 source MSExchangeIS Mailbox Store

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