I've tried sending Microsoft Answers a "screen shot" of an email from my college alumni association, which should NOT  be marked as "suspicious", but the dumb (misnamed) "SmartScreen" filters still keep flagging those messages as such. I have the alumni association's email address in my list of "safe" contacts, and consistently click "Show content", but there doesn't seem to be anything else I can do get the filters to stop 'red-flagging' the messages. In the meantime, I keep getting email that I always mark as "junk" in my inbox, over & over from the same senders. Makes me suspect that Microsoft is accepting payments from the senders to keep letting that particular junk through, and regarding it as "advertising revenue", since invariably the stuff that comes through is some kind of advertising. I'd switch to another email address, via a different provider, but unfortunately other providers do the same damn thing. Not much I can do other than grumble. I may have to 'just live with it', but that doesn't mean I have to like it.