The last newsletter I got was the February one (received on March 26). I didn't get the April one, and if there was a March one I didn't get it either.
I originally got the February one on March 26 in plaintext instead of HTML, which broke the message. I asked about it and you (KatieHal) forwarded the HTML version. Was I accidentally removed from the mailing list?
I highly doubt I would have missed it if it was sent. Nothing gets outright deleted when I receive an e-mail, and the amount of spam I get is low enough that I have no problem checking for false positives.
The e-mail address I used for Kickstarter is the same one that I have registered on this forum.
EDIT: I am receiving several e-mails now wondering why they haven't gotten a recent update (one person asked about it using reply-all to the March 26 plaintext e-mail 20 minutes ago). Looks like the probationary agent mailing list isn't exactly private, as in anybody can broadcast to the list (of course, they can't see who's on it). Also, at least
four six people other than me also haven't received any of the newer newsletters.