If I move my domain to Cloudflare Registrar, how can I setup email forwarding? (All I need is a wildcard forward for my domain.)
Cloudflare does not process email. You’d need some sort of mail host that can do this.
For anyone else who finds this (looking for answers), I found a free service called ImprovMX that works well. They even provide step-by-step instructions for setting up the necessary records in Cloudflare. Getting started is a little weird because you don’t actually register for an account. It creates a catch-all forwarder by default - at the main page you just enter your domain name, then the email address you want everything to forward to, then click the green button that says, “Create a free alias”.