Scenario: User A and User B both have email accounts on the Microsoft Exchange server. They both work for the same organisation and the email accounts are accessable via the web. Their email is not hosted inhouse but outsourced.

User A knows User B's email password. If User A accesses User B's email account, is there any way User B can find out that it was User A that accessed it (ie by contacting IT Support and finding out the IP address's of machines that have accessed their account)?

Thanks

yes, contact the IT department, they should be able to tell you the IP's that have accessed the account recently. (that is assuming thier servers actually log that info. and thier smart enough to find it for you!)