I've never had to ask MS to unblock me and it sure as hell doesn't take 6 weeks or even 3 days for them to automatically see if everything is right again.

I even set up a non traditional domain with a "non-generic" tld a couple of years ago and I think it was around 16 hours or so before my test emails were hitting outlook inboxes.

Additionally, I think Google still wants SPF setup though it is pretty useless now. And if your RUA was set up right, as I recall, you get an automated email from MS telling you why your mail went to spam (or was rejected), which is the point of it to begin with.