I never got an email to my gmail or anything. But I believe I received a message within the AACOM home page thing. Your best bet is to just log in every day or two and see what all is happening with your app. You will see it go from "received" to "verified" to "submitted to AACOMAS." And by each school you will see "view" (where you can see a very detailed version of your application) instead of just the "receipt" option. Once the view option becomes available, you will likely start hearing back from the schools because that is when the application is actually sent to the individual schools.