I emailed an application for a job on June 29th. The guy responded three days later to thank me for applying and said they would be reviewing my app that week and would try to get back to me later in the week (this was the week of the 4th of July, and I know the guy was out of town for a couple days). I still haven't heard anything, which is a bummer. Would you accept that they weren't impressed and let it be, or would you send a follow up email? If so what you would you say?