Ask HN: Is this email from Y Combinator or scam?

I got the following email from YC on October 4th sayingthat application process is closed and we were rejected. But I still seeing tweets for PG that application deadline was yesterday October 10th. So I'm wondering is that email a scam? Here is the email:

Thanks for applying to startup school. Unfortunately we couldn't accept you this year. There were a particularly large number of applications this year: over 2400, and the auditorium seats only 716. So we had to turn away a lot of people we would otherwise have accepted. We are however going to stream the event live on Justin.TV. And we are looking into options for even larger venues in the future. ============================================== Unsubscribe myname@gmail.com from this list: http://ycombinator.us2.list-manage.com/unsubscribe?u=7567183ee894c630e3b8f872c&id=76bd670699&e=55bdf23383&c=70c79a2e18