Make sure that your computer isn't compromised
Make sure that the attacker can't log on to your Office 365 account
Reset your password at http://password.eiu.edu
Make sure that the attacker can't resume access to your account
Make sure that the Exchange account doesn't auto-forward addresses. For more information, go to the following webpage: Forward messages automatically with a rule
Make sure that the Exchange server isn't sending auto-replies.
Make sure that your contact information, such as telephone numbers and addresses, is correct.