Hi,
With most e-mail accounts you can create filters that exclude names, domains, @xyz, etc., which I guess you're already doing, but I found it not effective as I got the kind of spam that hijacks innocent people's accounts so you're just filtering out that days victim used to send you rubbish/unsolicited correspondence. In the end I just ignore it and delete it from the spam folder and leave it to the e-mail platform provider to do what they do at their end - look for patterns and automatically exclude such things. I'd contact MS if you're getting 200 a day - that's harassment, some of the senders are sorry trolls who get off on your annoyance and just send more and more, pathetic outlook and pastime, or are undesirables who lack the dignity to seek proper, noble employment or are desperate and are paid cents per spammy mail sent and have no incentive to stop, so contacting MS may be the quickest solution.