Hi,
Recently we are working on Apple sign in. If we want to send mail to the private email, we have to use Apple’s private email relay service and register our outbound email domains. Here are something we should investigate:
1. Apple only guarantees that the user id is stable. Is possible the private email would change after user request the authorization next time?? Because our backend use the email to encrypt the token.
2. If the private email might change. Is it possible that the private email would be duplicate ?
Thanks
