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...
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.