<p>Yeah, they are going to be reading 4000 apps for EA, and 12000 apps for RD. Do you really think they check every envelope for the postmark date? YEAH RIGHT! Some teachers and GCs send in the letters of rec around that time, so there's more mail. As long as you don't send it like 2 weeks or 2 months after, you'll be fine. Probably like 1 or 2 days after the deadline.</p>