Unfortunately, forging email headers is cakework if you are skilled in computing. That's why you cannot easily trace the source of spam emails. I am not sure how much effort is needed to actually trace the true origin of the propaganda emails, but if the sender is behind a proxy or is smart enough to forge email headers, we're pretty much SOL. That said, we should get the email header info (which is quite easy to get, just select the show full headers options in your favorite email client) just in case it is useful.
But folks, if someone is desperate enough to short and distort our stock, there is some MEAT behind our company. I forsee that the work by Paul and co pay off soon in the near future. People should take advantage of the cheapie prices to load, before the real blast off.