In my mobile app, when users choose to "sign in with apple" and choose to hide their email, I am unable to send emails through the private relay email that apple provides me with. The Sign-in-with-apple feature works perfectly fine in the app, I get a successful response, get the needed user information, and can register them and sign them into the app. If a user chooses to share their email, then I am able to successfully send the user emails so the problem is seemingly only with the private relay service. In my apple developer console I have configured apple-sign-in and have verified my email sources including my domain name and the email that is attempting to send emails. I am using SendGrid to send my emails and I have followed the documentation to verify the email address needed for apple-sign-in as well. All three sources display a green checkmark indicating they have been SPF verified. Despite this, I am still unable to send emails through Apple's private relay service. The relay email address never forwards the mail to the user's actual address and so the user never sees the email.
I'm not sure if there is anything else I need to do after verifying my email sources but it seems like I have followed all the steps to properly configure everything. Would anyone happen to know why I still cannot get the relay service to work properly? Any help is greatly appreciated.
Thank you!
