This was all last night. I made a new email this morning to see if it was still working and sure enough, it's still pumping out the 160 MSPs. It's a contest, not a giveaway. Not everyone is guaranteed to win points. Just because you don't win doesn't mean they aren't handing the points out anymore.
I should note though that I have noticed that none of the emails I tried last night worked today, so I'm beginning to think once you've won with one email, that's it.