SBS2003. I was trying to prevent access to public folders to only a few users. I thought that granting permissions to some but denying permissions to "Everyone" would do it.
So, on the server itself, in Exchange System Manager, I denied all permissions to Everyone. The result was that the "Public Folders" subfolder under "Folders" would no longer expand to show the folders AND the label "Public Folders" disappeared. I was still able to right click on the folder but got a message that there was no such name. Unfortunately, I did not write the message.
I searched EE and found that with access to the AD manager, I could reset permissions. Under the domain name, I don't see anything specifically referring to Public Folders. I do see Microsoft Exchange System Objects with a system mailbox, but doubt that that's related.
From my workstation (with administrator rights on the server) I still see the public folder and the subfolders but cannot see the contents (except for an Addresses contacts subfolder. I need to reset things back to normal so I can try to accomplish what I'm trying to do correctly!