I have a few resource calendars in Exchange Server 2013 CU 9 environment which have suddenly stopped processing the meeting requests.

My question is: how should i troubleshoot this problem?

There are 5 resource calendars that have stopped working. And many, many recource calendars that works normally. The resource calendars are located on different databases and on different mailbox servers.

Calendarprocessing settings are:

AutomateProcessing                  : AutoAccept
AllowConflicts                      : False
BookingWindowInDays                 : 730
MaximumDurationInMinutes            : 1500
AllowRecurringMeetings              : True
EnforceSchedulingHorizon            : True
ScheduleOnlyDuringWorkHours         : False
ConflictPercentageAllowed           : 0
MaximumConflictInstances            : 0
ForwardRequestsToDelegates          : True
DeleteAttachments                   : True
DeleteComments                      : True
RemovePrivateProperty               : True
DeleteSubject                       : True
AddOrganizerToSubject               : True
DeleteNonCalendarItems              : True
TentativePendingApproval            : True
EnableResponseDetails               : True
OrganizerInfo                       : True
ResourceDelegates                   : {}
RequestOutOfPolicy                  : {}
AllRequestOutOfPolicy               : False
BookInPolicy                        : {}
AllBookInPolicy                     : True
RequestInPolicy                     : {}
AllRequestInPolicy                  : False
AddAdditionalResponse               : False
AdditionalResponse                  :
RemoveOldMeetingMessages            : True
AddNewRequestsTentatively           : True
ProcessExternalMeetingMessages      : False
RemoveForwardedMeetingNotifications : False

I have also moved tested to move these mailboxes to different databases but it don't solve anything.

I didn't find any CRA logs about these mailboxes.

Also these mailboxes are below quota limits.

It feels like that there is something broken in these resource calendars or it is a bug in CU 9.

I just don't know how to continue troubleshooting this problem. I have tried to find for hours similar cases from internet but there are not many cases exactly like this.

• Edited by Petteri Heino Friday, July 31, 2015 10:19 AM

Just in case, do a search against the mailbox for this message, see where it ended up. Check for rules, etc. Another thing to try is to enable auditing on the mailbox and repeat the test.

Just in case, do a search against the mailbox for this message, see where it ended up. Check for rules, etc. Another thing to try is to enable auditing on the mailbox and repeat the test.

Hi

I forgot to reply to this topic because i have been very busy, but here it goes...

The first time looked the message tracking log i was a little bit careless. I saw that the message was received, but the second time i checked what exactly happens in message delivery i noticed that there is no received event id.

Instead of that there was "process" event id and it was saying ": {[Stage: OnPromotedEvent][Agent: Mailbox Rules Agent];StoreDriver.Rules; message is deleted by mailbox rules}"

I checked the inbox rules, but i didn't see any server side inbox rules at the mailbox.

I didn't took more time to resolve this case. I ended up exporting the data from mailbox and then i created new room mailbox and copied calendar marks back to calendar of the new room mailbox.

So i still don't know what actually caused the problem but atleast the calendars are working again.