This is admittedly a duplicate of this question: Secure Exchange mailboxes
In short, how can Microsoft Exchange 2010 be configured such that email is only visible to the owner of that mailbox, and perhaps the owner/CEO of the organization?
The answers to the linked question dealt with admin trust and the Microsoft "model" for Exchange, that is, it is assumed that admins will have all the power.
But let's assume that simply isn't an option: as someone who is new to Exchange, and Microsoft products in general, I have been tasked with setting up Exchange in such a way. No one, except the owner of the company, should be able to see anyone's email but his own. We realize that this will limit what the "admin" can do (e.g. fix mailbox corruption), but that is acceptable.
Furthermore, as a follow-up to the general theme of the answers to the duplicate question I linked: is it really true, in large organizations that use Microsoft Exchange, that the Enterprise Admins can potentially read anyone's email? For example, at Microsoft itself, there is someone (possibly many people) who can potentially read Steve Balmer's email? Or read sensitive HR documents about peoples' compensation, or maybe an employee asking about something like EAP (employee assistance program)? Or emails with the legal team, or conversations with the SEC, or perhaps an upcoming acquisition?