Your University of Northern Iowa email account in Google Apps for Education is NOT deleted upon leaving the university. Students now get to keep their email@example.com  email accounts. This applies to any student that has left the university since December 2010.
Graduate students who have completed all coursework for their degree, but not yet received their degree, may request an extension by asking their advisor or committee chair to confirm their status with the relevant system administrator. The continued used of computer labs may also be requested.