The emails will come to your inbox of your personal email account (not SparkMail.) There's a link at the bottom of them to click to get your points.
If you want to sign up for emails, click on the Account Preferences link at the top left of your Start page and you can subscribe from there.
Hope that helps,
"You may have a fresh start any moment you choose, for this thing that we call "failure" is not the falling down but the staying down." Mary Pickford