Forum Discussion
Hide users disbaled users and shared mailboxes from GAL
We are using Office 365 with AD sync.
I have a problem where I cannot hide shared mailboxes from the GAL...
The shared mailboxes where once users but after they leave have been converted to a Shared Mailbox.
I have set msExchHideFromAddressLists to TRUE on the AD side but still they are visible in the GAL (Even after 24hours)
I cannot set them hidden via the admin centre as i get the failed because it's out of the current user's write scope error...
I can delete the AD object and it removes the users from the GAL but then it also removes the shared mailbox too.
Does anyone know a work arround?
Please Check if the "mailNickname" attribute for the disabled users / shared mailbox is populated.
Another user attribute that must be populated for msExchHideFromAddressLists to work is the "mailNickname". Set this to their username. and run a delta sync. If this is not set, then msExchHideFromAddressLists doesn't work correctly. The GaL should update instantly on OWA.
Check whether the attribute change is picked up via the MIIS Client as detailed here: https://docs.microsoft.com/en-us/azure/active-directory/hybrid/tshoot-connect-object-not-syncing#connector-space-object-properties
