To OPT IN, go to, scroll to the bottom of the page and on the right side you will see this-

Enter your email address and your full name and click Sign Up.

If you've opted out of receiving iRacing emails in the past, it will give you the option to opt back in.

You can also check your email settings by going to, Account, then scroll down to Email Settings.
Make sure the boxes are unchecked.

To OPT OUT of Marketing emails, you can do this by logging into iRacing, click the helmet at the top right and click Account.

then Manage My Account

You may then need to log in.

Then click My Info

and scroll down towards the bottom and you will see these settings:

and make sure to check these.