Hello All,

We are facing strange issue regarding calendar permissions in outlook 2010 SP2

We have granted four users "Reviewer" access to a particular users calendar.

All four users when try to book meeting or edit already booked meeting in shared calendar in outlook 2007, outlook 2013 and OWA they get error "You don't have permission to create an entry in this folder", which is correct when Reviewer permissions are in place, but when all these four users try to book meeting or edit already booked meeting in Outlook 2010 they get NO error and able to open/create/modify meetings in shared calendar which is strange behavior in outlook 2010.

Can anyone please let me know how we can prevent all these four users from opening/creating/modifying meetings in shared calendar in all client (Outlook 2007,2010,2013 & OWA), what permissions, settings, registry tweak I've to apply in outlook 2010 so that users will not able to open or create meetings in shared calendar when granted "Reviewer" permission.

We have Exchange 2010 SP3 CU8 in our organization.

We tried LimitedDetails, AvailabilityOnly, non cached mode settings also but no joy.

-Sandesh

• Edited by Piramal IT Wednesday, May 27, 2015 4:42 PM

I would like to know this as well. We are running Exchange 2007 SP3 with Update Rollup V8-2, 10, 16.

Using Outlook 2010 SP2 (I have tried an older version of Outlook pre SP2) same result.

We are moving the data from our Public folder calendars into calendars within shared mailboxes. if an editor double clicks in a public folder calendar or a shared mailbox calendar the "Untitled Appointment" is displayed.

If a Reviewer double clicks in a Shared Mailbox Calendar and Default is set to None, Outlook creates a meeting invite to the calendar. We don;t want this to happen we want an access denied message. I am sure this used to work but something has changed to reflect this new behaviour. I thought it may have been an update rollup, but the issue occurs in my lab with just Exchange 2007 SP3 installed.

The shared mailbox in question is just a standard mailbox and using the calendar feature.

Any advice would be great, as this is drive me mad.