Free .edu E-Mail From Microsoft
Free .edu E-Mail From Microsoft: What's the Catch? What Does It Mean?
Microsoft is offering universities free hosted mail services for staff, students and alumni. Because this is the first offering of its kind and is likely to spread to .gov and .org constituencies, and ultimately to commercial organizations, an in-depth examination of the program is warranted. (source)
http://techfee.ewu.edu/email/ -> Maybe this is how it works.