• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 27
  • Last Modified:

External room reservation in Office 365.

External room reservation in Office 365.
I have created a meeting room called corner and I have enabled ProcessExternalMeetingMessages but when I try to book the room using outlook and enter the email room@domain.com as a room I get the standard error from ms: 550 5.0.350 Remote server returned an error -> 550 invalid mailbox

Is there a solution to this?


Here's the output of get-CalendarProcessing:
RunspaceId                          : 8081e09a-71ed-4afc-bc28-c182165898e3
AutomateProcessing                  : AutoAccept
AllowConflicts                      : False
BookingWindowInDays                 : 180
MaximumDurationInMinutes            : 1440
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                   : {}
RequestOutOfPolicy                  : {}
AllRequestOutOfPolicy               : False
BookInPolicy                        : {}
AllBookInPolicy                     : True
RequestInPolicy                     : {}
AllRequestInPolicy                  : False
AddAdditionalResponse               : False
AdditionalResponse                  :
RemoveOldMeetingMessages            : True
AddNewRequestsTentatively           : True
ProcessExternalMeetingMessages      : True
RemoveForwardedMeetingNotifications : False
MailboxOwnerId                      : Room
Identity                            : Room
IsValid                             : True
ObjectState                         : Changed
1 Solution
Vasil Michev (MVP)Commented:
The settings seem OK, post the full NDR message?
macxpresAuthor Commented:
Hi Vasil,
Thanks for the reply, it was a spam-filter that didn't auto created the recipient and created the ndr.
Case closed.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Cloud Class® Course: MCSA MCSE Windows Server 2012

This course teaches how to install and configure Windows Server 2012 R2.  It is the first step on your path to becoming a Microsoft Certified Solutions Expert (MCSE).

Tackle projects and never again get stuck behind a technical roadblock.
Join Now