I'm new to s2MP and I was just reading through the "Registration Process" on the Quick Start Guide and I saw this
s2Member will also send the User an email with instructions on how to register their Username & Password, just in case they missed the instructions after checkout. That email will be sent to their PayPal® email address. Much of this is handled through the PayPal® IPN service behind-the-scene, where PayPal® and s2Member communicate with each other.
The question I have is as I have set Paypal not to require Paypal membership when taking credit cards does it get the email address from the "contact email" field on the Paypal payment page?