Ditto here. I got a couple of those from the same person. It's happened before, usually seems to be from Yahoo accounts. Maybe they're particularly vulnerable? FWIW, it doesn't seem to do any harm to open the email, at least with my hotmail account, but it would be a very bad idea to click on the attached link. Hotmail generally seems to be pretty good at screening junk; more so than ISP-provided email services. Anyway, I've always practiced aggressive deletion....probably wasted a few bona fide emails over the years, but never had any problems of that nature.
J