Did you know that you can use a web-interface for your email? Go to http://webmail.students.niu.edu . Once there you can login with a z-ID and your network password.
If you don't know your password you can get it reset via https://webfoyer.niu.edu/iuadmin or by calling (815) 752-7738 .
You can also find out your z-ID by calling (815) 752-7738 or by going to the NIU electronic phonebook at http://www.niu.edu/directory.shtml and searching.