I have a client with a SBS 2003 box running exchange, my issue is that all exchange users have permission to view everyone elses inbox, calendar, contacts and so on without being granted access as a delegate.
This used to not be the case but unfortunatly it is now.
I have noticed that in the in the advanced mailbox permissions tab user's and mobile users have full permission on all of the accounts.
I can not modify this because the permissions are being inherited.
any help would be appreciated.