How to code your own referral program for free with Webflow + Mailchimp

Thanks for that, an interesting example :o)

I would put the referrer's code on the submission form rather than their email address, and translate that into the underlying email address when adding into the "draw". This avoids exposing the referrer's email address (you may have only seen the referral link on their Tweet, for example).

I appreciate this is just an example how-to though.