I received an email notification on 5/1 that I was on the alternate list, but it went straight into my spam folder despite the fact that I had received every other email from IUSM without this happening. I didn't find out until I randomly decided to check the portal on 5/2 which was updated with my status. One of my friends had the same exact thing happen, so I would start by checking your spam and/or the portal. I'm not sure about rejection notifications though.
Would you mind sharing your stats and if you are in-state or out -of -state?