Hi,
If we just set the msExchHideFromAddressList to TRUE, then this user will not be hidden form address book and you can see this user in address book except detailed information of this user. If you want to hide this user in address book, please try the following
steps:
- Open EMC, navigate to Recipient Configuration -> Mailbox.
- Then choose that user, double-click to properties.
- Under General tab, uncheck the box Hide from Exchange address lists, then click
Apply.
- Then recheck the box Hide from Exchange address lists, click OK
to apply this change and close window.
- Now, check this user in the address list.
To clear showInAddressBooks attribute via PS Cmdlet, try this script:
https://gallery.technet.microsoft.com/office/Remove-Exchange-Attributes-3b39b2de#content
Best Regards.