<p>First of all, welcome to being an active poster, "just"aMom! And second, congratulations on the e-mail message.</p>
<p>Your and your D's experience reminded me of a former colleague who received both an acceptance and a rejection letter from the same college. This was in the days before e-mail, etc. So, even the official letter could be erroneous, in which case your D should contact the school for clarification.</p>
<p>Good luck!</p>