Turn on the server-side white list to block all mail that is not from a safe sender

Open http://emarq.mu.edu, and log on to e-Marq mail using your email username and password.
Click Options on the top right corner of the screen. Click Junk E-mail in the left pane to open the window shown below.

Check Automatically filter junk e-mail.
Select Treat all e-mail as junk unless it comes from someone in my Safe Senders or Safe Reicipents List.

Note: Anyone in the Marquette domain is considered a safe sender. You can add or remove other addresses from the Safe Sender's List.