Well, I just got verification that this is true, and it's not a hacker/scammer paradise email. I was a bit worried when I received this, as there has been quite a few "legit" looking emails floating around, but if yours looks like this, it's all good, baby, yeah! (what is with all the Austin Powers lately? I haven't seen that movie in like 5 years....I dunno....).
But do yourself (or a buddy) a favor and check in that inbox. I didn't get the exact times, in other words how long your account has to be active, but it's worth a check. I am wondering if it isn't only for us vanilla starters....Anyways, chickity-check it! It's a great way to get some cross faction trades or RaF (asking on that one right now..will answer 100% when I know 100%..).
*Edit: Cold from Cold's Gold found the blue post here: Free Account for WoW Veterans? Thanks bruddah!
*Edit: After reading some blue posts, it seems that quite a few folks are pissed off that they didn't receive it (playing since vanilla) since the "box" wasn't checked for "Receive future special offers" (settings<communication settings). Pfft. Didn't know I had it checked, but you might want to check your settings on battle.net.....
Now all we need is to get our friggin pets for logging in on WoW Anniversaries...a man can wish, can't he?!