As a rule, anytime something like this happens, you should change your password (and any other place you use the same password or a variation of it). That being said, we are bursting the emails (as I believe Dylan commented already). Spam filters being what they are, it's possible it may be in there, so I would suggest you change your password.

I didn't receive the email yet either. Hmm... just changed my password just in case.

Yeah, I think they're sending the email out in separate blasts. This is one email they don't want ISPs blocking IPs on because it looks like spam.