<p>They were really busy sending out EA decisions and are currently on break. So, yes they do send you a confirmation letter and due to the aforementioned factors, I'd be willing to bet that you will be receiving confirmation sometime after admissions returns on the 5th :)</p>
<p>You can go to common app and click that school on your "my college" list or whatever, and check if they downloaded it. It gives you a downloaded date next to each part (ie application, supplement, teacher recs).</p>