<p>I got deferred from Columbia ED and I want to send them more information. Do I email them at <a href="mailto:ugrad-confirm@columbia.edu">ugrad-confirm@columbia.edu</a>, or <a href="mailto:ugrad-ask@columbia.edu">ugrad-ask@columbia.edu</a>?</p>
<p>call them.</p>
<p>They specifically said in the letter not to call them.</p>
<p>I would look up the name and address of the admissions officer for your region, and MAIL him or her your “updated” information (new honors, awards, etc.) in mid-January. You really only have one bite at the apple, barring a huge honor, without appearing annoying.</p>