Keylogger, right?

Ok so I just got this mail from an adress called Account administration, at first I thought it was a keylogger, but then the question came to my mind: how did they know my e-mail? The grammar was perfect and it was a good letter. I'm not just going to that site, I'm asking you guys for help :P. So, is this an e-mail from Blizzard?

Greetings, An investigation of your World of Warcraft account has found strong evidence that the account in question is being sold or traded. As you may not be aware of, this conflicts with Blizzard's EULA under section 4 Paragraph B which can be found here: WoW -> Legal -> End User License Agreementand Section 8 of the Terms of Use found here:WoW -> Legal -> Terms of UseThe investigation will be continued by Blizzard administration to determine the action to be taken against your account. If your account is found violating the EULA and Terms of Use, your account can, and will be suspended/closed/or terminated. In order to keep this from occurring, you should immediately verify that you are the original owner of the account. To verify your identity please visit the following webpage: <snip> Only Account Administration will be able to assist with account retrieval issues. Thank you for your time and attention to this matter, and your continued interest in World of Warcraft.Sincerely, KennalithAccount AdministrationBlizzard Entertainment LXpBH

Tyvm already guys!