Booking a recurring meeting causes hundreds of auto accept emails


  • We just created a bunch of new Conference Rooms for a new location. We have done this hundreds of times and created them as Room mailboxes etc....We noticed about 5-6 rooms are sending hundreds of auto accepts for bookings instead of the traditional single email. These are recurring meetings. The only thing we did different with the creation of these Conference Rooms is instead of putting a user mailbox as a Delegate for the room, we listed the room itself, so the Conference Room is a Delegate of itself.

    The reason is people that are supposed to be Delegates for these rooms did not want the approve/deny emails going into the Inbox so they asked that we make the room a Delegate of itself and give them full access to the room mailbox. This way, they have the room mailbox in their Outlook and they can just go into the Calendar of the room mailbox to approve/deny the booking.

    I am wondering now if making the room a Delegate of itself is causing the problem we are seeing.

    2018年5月17日 下午 12:02


  • It would be easy enough to change it and see.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
    Celebrating 20 years of providing Exchange peer support!

    2018年5月17日 下午 08:18
  • Hi,

    Based on my test, when we schedule a recurring meeting, we will receive only one accepted response email with the subject "Accepted All: <meeting request subject>", if there is no room delegate for the room mailbox. We don't need to grant the room mailbox permission to other users.

    So please check the room mailbox settings by running the below command and post the output here: 

    Get-CalendarProcessing <room mailbox ID> | fl

    Look forward to your reply!


    Manu Meng

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    2018年5月18日 上午 08:11
  • RunspaceId                          : 4a2d7cc1-ace3-4e29-a4f2-84c7d607db06
    AutomateProcessing                  : AutoAccept
    AllowConflicts                      : False
    BookingWindowInDays                 : 1080
    MaximumDurationInMinutes            : 2880
    AllowRecurringMeetings              : True
    EnforceSchedulingHorizon            : True
    ScheduleOnlyDuringWorkHours         : False
    ConflictPercentageAllowed           : 0
    MaximumConflictInstances            : 0
    ForwardRequestsToDelegates          : True
    DeleteAttachments                   : True
    DeleteComments                      : False
    RemovePrivateProperty               : True
    DeleteSubject                       : False
    AddOrganizerToSubject               : True
    DeleteNonCalendarItems              : True
    TentativePendingApproval            : True
    EnableResponseDetails               : True
    OrganizerInfo                       : True
    ResourceDelegates                   : { Columbus Skills Lab Rm 2035}
    RequestOutOfPolicy                  : {}
    AllRequestOutOfPolicy               : False
    BookInPolicy                        :
    AllBookInPolicy                     : False
    RequestInPolicy                     : {}
    AllRequestInPolicy                  : True
    AddAdditionalResponse               : False
    AdditionalResponse                  :
    RemoveOldMeetingMessages            : True
    AddNewRequestsTentatively           : True
    ProcessExternalMeetingMessages      : False
    RemoveForwardedMeetingNotifications : False
    MailboxOwnerId                      : Columbus Skills Lab Rm 2035
    Identity                            : Columbus Skills Lab Rm 2035
    IsValid                             : True

    2018年5月18日 上午 11:32