http://www.snopes.com/politics/war/quran911.asp
http://www.snopes.com/rumors/elevens.asp

It's coincidance, and partly false. You can twist facts out of anything. Not saying the OP twisted, but don't dig so deep looking for the grey grains of sand that you don't see all the white ones. Digging through all the facts around this event, you can find corelations, but they are meaningless.
Here's the Snopes entry describing how false it is, with EXACTLY the email posted here.
http://www.snopes.com/rumors/coincidence.asp
It even gets the wingdings, since they are formulated on a meaningless sequance to start with.