Yes, I am pretty sure it is. And the spam folders don't have it. I also tried to change the activation email to a new email address (another one which I have) but a message would come like "Please enter an email address which we recognize".
Erm... I seem to be having a problem registering my new account. I'm not receiving the activation email even though I re-sent it quite a lot of times. This problem persists from three to four days, so I thought I'd inform you.