Hello, friends! I conferred with our Marketing team who were able to provide a few answers:
If you are signing up to receive the newsletter for the first time, you will receive an emailed confirmation message to verify your email address. If you’re signing up for the newsletter for the first time and don’t see this confirmation, you’ll find steps in this article that may help to fix the problem. If not, take a moment to contact support.
If you've signed up in the past or if you're re-subscribing (if, for example, you opted-out of receiving newsletters in the past), you won't receive the email confirmation a second time. Rest assured: you should see an on-screen confirmation that you’ve added yourself to the mailing list when you submit your changes, which means you will be eligible to participate in the sweepstakes (at least as long as you fulfill all the other requirements).
If you’re still having trouble when all is said and done, contact support; they’ll be able to dig into it deeper and help you figure out what’s happening!
Happy racing! =)