The big boss doesn't want to see the default address lists "all users", "all contacts", "all groups", "all rooms" in Outlook, and frankly neither do I. In Exchange 2003 you had to adjust permisions with ADSIedit, so I just left it for what it was.
Now we've upgraded succesfully to 2K7 (still have to apply SP1) and apparantly under EMS > Organization Configuration it is now possible to "remove" the default address lists and create new ones (the remove option is simply available by rightclicking the address list).
How safe is it to use that "remove" option on the default lists (again..all users, all groups, all contacts, all rooms) ? consequences etc. if any ?
I got to say, an operation that involves "remove" and "all users" sounds anything but comfortable.