Opening my mail this afternoon, I saw the most legit looking email I have gotten so far...(click the image if you don't have superman'ish vision)
There are many dead giveways that an email is NOT from Blizz. Something spelled wrong, sloppy and unclear background (see the Answer part at the top of it), sentences not written correctly, the same word doubled, and last but not least, leaving out YOUR NAME!
I have received correspondence from blizzard, and when you do, you normally have a "safe" of some sorts from your email site (mine is a little green speck'ishly looking circley square), but it will ALWAYS be addressed to the account holders name. Not just a "Greetings". Oh, and anything from a Game Master Dunarthra is a instant tell it is a fake scam email. It makes me wonder how many accounts this guy has by now.....
Recently, our great pals at Blizzard introduced a Youtube page dedicated to Customer Support (okay, it was a few years ago, but the hacked one was made in september). You can get there through the link below or direct: Blizzard Tutorial on YouTube. I am still debating if it is Gimp talking or not....maybe his neighbor. You know what? It might even be Zoxy....One will never know!
I hope no one has fallen for this email, as it is the best I have seen so far. Blizzard is more prone to act first and ask questions later than sending an email of this type out first. You have been warned!