So I have a computer setup with an Exchange account in Outlook. We have another computer setup with the same account except it is setup as a pop account. The reason we have it setup as pop is the second user computer is just monitoring incoming emails and wants to be able to read and delete the emails without it affecting the first user. Obviously the pop account is set to leave all messages on the server. The problem I am having is duplicate emails showing up in the pop account. It seems like whenever the computer setup as exchange opens outlook it causes the other computer setup as pop to download emails again. Shouldn't the computer setup as pop know which messages it has downloaded and not download it again ?