I am running Exchange 2003 Standard (Version 6.5: Build 7638.2: Service Pack 2) on the PDC (Mixed Mode) and the clients are all accessing it via Outlook 2003 Clients.
By default, everyone is able to "Open A Shared Calendar" when in the Calendars tab and "Open Other User's Folder" when in the Mail tab and for the life of me I can't find the configuration to stop this. This should NOT be the default, I know.
NO-ONE has configured a delegate and the Permissions on everyone's folders arespecified as "Name: Default" and "Permission Level: none".
I'd like the default to be that no-one has access to any others' mailboxes or calendars unless they are specified in Tools --> Options --> Delegates as being allowed, which I would assume is the way it SHOULD be working.
Any help would be appreciated, and I'll try to provide as much further information needed to diagnose the problem.