Very fair. I just wanted to clarify that my email specifically said "Your formal offer was sent to you" by the department itself. Either that means it is sent by email (in which case, I should have received it by now, and I figured someone on here would say "Yup, I received an email from the department!", and I'd know that something was amiss). Or, no one else has recevied a letter, and it is either a physical letter or just not sent yet. not a terribly important question, but I did have reason to ask.