I think letters are being mailed Friday (as in put in the mail late in the afternoon, so for all purposes think being circulated, not delivered, by the mail on Saturday, because the school isn't in session on Saturday so they mail it late late late on Friday) which probably means you would get a hard letter delivered on Monday. I heard this as second hand news so take that at face value. I know in the past that emails have gone out on the acceptance day, think if March 1 was a Monday, letters mailed Monday and then emails sent at close of business on Monday. But with March 1 being a Sunday, who knows??!!!! Good luck, hope your child gets accepted.