kavvz:
Click on "Account" under your name in the upper left.
Then click on "Contact Info". That will reduce the emails a little bit, but unfortunately it won't stop tournament notifications. There's no option to turn those off AFAIK.
Unchecking "all" the boxes works as he said....I have an old hotmail (now outlook) account, I used to put anything from Facebook, google, WGT, etc., in my "junk" folder if it got through, sooner than later they ALL stop once you do that.....at least with hotmail.