14035MSExchange MailTipsMailTipsApplicationProcess Microsoft.Exchange.InfoWorker.Common.Delayed`1[System.String]: MailTips query failed for mailbox <John Johnny JoeJoe>SMTP:jonjojo@acmecorp.com. Latency: total:1. The returned exception is: Microsoft.Exchange.Data.Storage.StorageTransientException: Cannot open mailbox /o=AcmeCorp/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=EXCHGSERVER/cn=Microsoft System Attendant. ---> Microsoft.Mapi.MapiExceptionRpcServerTooBusy: MapiExceptionRpcServerTooBusy: Unable to make connection to the server. (hr=0x80004005, ec=2419)
Diagnostic context:
Lid: 41841 StoreEc: 0x973
Lid: 51059
Lid: 62321 StoreEc: 0x973
Lid: 47987
Lid: 50033 StoreEc: 0x973
Lid: 50544 ClientVersion: 15.0.995.27
Lid: 52080 StoreEc: 0x973
Lid: 51152
Lid: 52465 StoreEc: 0x973
Lid: 60065
Lid: 33777 StoreEc: 0x973
Lid: 59805
Lid: 52487 StoreEc: 0x973
Lid: 19778
Lid: 27970 StoreEc: 0x973
Lid: 17730
Lid: 25922 StoreEc: 0x973
at Microsoft.Mapi.MapiExceptionHelper.InternalThrowIfErrorOrWarning(String message, Int32 hresult, Boolean allowWarnings, Int32 ec, DiagnosticContext diagCtx, Exception innerException)
at Microsoft.Mapi.MapiExceptionHelper.ThrowIfError(String message, Int32 hresult, IExInterface iUnknown, Exception innerException)While logged as an error, this event doesn't seem to indicate serious issue with the exchange server. A reboot seems to resolve the issue in all cases, although a restart of Exchange-related services may be sufficient.