A network I have inherited is running an Exchange Server 2003 Organization in the environment. We are in the process of migrating from Microsoft Small Business Server 2003 with Exchange to a dedicated Exchange Server 2003 Standard on Windows Server 2003. Both Exchange and Windows are up to date with patches and running Service Pack 2.
Recently I was made aware that all Outlook Calendars in our environment are able to be accessed by everyone in our environment. That includes the CEO's Outlook calendar. Investigation shows permissions have been applied to all Outlook calendars, however, those defined permissions are being ignored. Everyone can view everyone's calendars. Not just view, but also have the ability to write/edit and save changes as well. I am unable to find a cause on how this has happened. Especially since permissions were working fine according to the old IT Administrator. Attempts to correct the situation using tools like PFDAVAdmin have been unsuccessful so far. Can anyone point me in what the next step to take would be to resolve this issue?