If you are collecting the user’s email address on your site, you can pass that email address to Stripe in the checkout process and pre-fill it for the user. This requires the Pro version of our Contact Form 7 – PayPal & Stripe Add-on.
Step 1: Create an email field on your form. In this example it’s called your-email, but you can name your field whatever you want.
Step 2: Then on the PayPal & Stripe tab, near the bottom:
* If you want to link other fields like name, please use meta fields: Link a description to an option field