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Event ID: 8231 Source: EXCDO

Source
Level
Description
Calendar agent failed to determine the primary calendar for mailbox: resource@company.com For more information, click http://www.microsoft.com/contentredirect.asp.
Comments
 
From a newsgroup post: "This will happen when a mailbox has been created that has permissions delegated and has not had an appointment created by the owner of the mailbox. If this has not been done, every time a delegate creates an appointment, this warning will be logged. Resolution: Log in with the mailbox owner's account and create an appointment. These warning will no longer appear in the Application Log".

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