Dear Sir or Madam,
Thank you for your continued support. My name is Sato from atmos.
We are currently working with a vendor to implement Apple Sign In as a login method for our app, but we are encountering some issues and would like to contact you about them. The Apple Sign In functionality itself is almost complete, but during verification, email relay is not permitted by Apple when Apple Sign In is used with a non-public email address, making it impossible to complete email relay verification for users. We have reviewed the settings in “/account/resources/services/configure,” checked your FAQ, and explored all other possible solutions within our scope, but the situation remains unchanged. Would it be possible for your team to confirm the cause of the email relay not being permitted?
Thank you for your assistance.
atmos Sato
Translated with DeepL.com (free version)