I teach at a University - this semester, using an outlook.com account (I have my university e-mail forwarded there and some students send e-mails there directly

I teach at a University - this semester, using an outlook.com account (I have my university e-mail forwarded there and some students send e-mails there directly), I've probably gotten 2-3 student e-mails in my spam folder / week for almost the entire semester. (These are mostly coming from .edu addresses associated to their university accounts)