MS Outlook with multiple users

Question: On microsoft Outlook for a small business. there is a list
the administrator can bring up that shows storage space used and the
name of the last person that logged on to an e-mail account for all
employees who have e-mail. Is there a way to find out a history of
who logged in to your account besides the person listed there on that
page for the last log-in?

I have an issue with, i think, people logging on to my e-mail without
my knowledge and getting information they are not supposed to have for
the company. I want to try to track the log-ins if possible.