I understand that I have no expectation to privacy when it comes to my work email but something happened recently that leads me to question specifically who has authorization to access my account. I recently sent an email to the CEO of the corporation that I work for. The CEO responded and CC'd three other employees/managers. I sent the email prior to leaving work for the day. When I returned to work that night, I was unable to log into my windows account. While I was on the phone with IT, I tried the generic "Password1" password and it worked. IT advised me that my windows password had been changed that day (while I was at home). When I went into my email, I observed that three new emails that I had not seen yet, had been read. I then discovered that all of the emails that I had from before 3-5-17, were gone. They were gone out of my inbox, important folder, and sent emails. I was able to locate all of my old emails (sent, received, and deleted) in a vault. I located a feature in Outlook that allows you to recover deleted emails from the past month. I found one email in particular that I had never seen. The email was sent to the CEO and me from the one of the managers that the CEO had CC'd in my email. Once I recovered the email, I realized that the manager had mistakenly sent the email to me because the email was about me. The manager was telling the CEO the I he believed that I was not a good fit for their facility and called me abrasive and pushy. The manager then told the CEO that he'd be in favor of having me replaced. Would the manager have the authority to ask IT to access my email account or do it himself if he knew how? Would the CEO have the authority to ask IT to access my email or do it himself if he knew how? I completely understand the corporate can access my email at any time but do employees that are not part of corporate also have the authority?