(e.g., Hotmail dropping all emails coming from Oxford) This can be a problem for universities in specific ways. Students get emailed some change to course work

(e.g., Hotmail dropping all emails coming from Oxford) This can be a problem for universities in specific ways. Students get emailed some change to course work, all students using hotmail don't get the email, students then have a case to appeal the (possibly) worse mark they received.