Many of our classmates have submitted 2 e-mails that they would like to use for notifications and communications from the site. Is it possible to assign multiple e-mails to classmates?

Good idea. I can see the value in that. I use three different computers myself and am often checking in from these multiple locations.

The system uses the primary email address also for the site login, but we can add a field under it called Alternate Email Address. Working email copies into the system wide messaging system will take some time, so I put it "on the list" under some more pressing tasks. Rough guess, 5 weeks until implementation. Give or take a couple weeks.