Mailboxes Right Inventory

[fmirre]

Hi guys,

I am trying to figure out a way to get a complete list of which user has access to which mailbox in Outlook.

I am working for a company where VIP users often share eitheir their entire Inbox or, causing serious security issues in a long run. Hard to monitor what's going on in such case.

We also (admin staff) give Full right permission through AD.

Is there a tool I can use to scan my entire mailbox stores to verify the permissions level.

I have over 200 mailboxes in my organisations.

Please let me know your feedbacks.

Thanks in advance.