As I've recounted many times now, I received the e-mail at 8:37 in the morning. I was putting my kids on the bus. I got in my car, I went to my job. I have clients in for the day. I'm running around. A couple of hours later, I got back. I skimmed through some e-mails on a quick e-mail break. Out of courtesy, I did a quick note back just to let him know that I got the e-mail and that I hadn't ignored him, and then I went on with the day.
On February 8th, 2011. See this statement in context.