I have verified my domain as mentioned in the Apple Docs but I am still unable to send emails to apple relay addresses.
I have also added the sender email id from the Mailgun logs ([email protected]) to the verified addresses.
But no luck.
SendGrid (https://sendgrid.com/docs/ui/account-and-settings/configuring-sign-in-with-apple/) gives you one email address to be added to Apple Dashboard but I don't see a similar solution for MailGun.
If anyone has faced a similar scenario, please share how you overcame the issue.
make sure your mailgun subdomain is verified. If your server is at example.com and your mailgun sending domain is sender.example.com you need to add the file you download from https://developer.apple.com/account/resources/services/configure to your host on https://sender.example.com/.well-known/apple-developer-domain-association.txt after this verification is successful you will see a green tick and mailgun emails to *@privaterelay.appleid.com which are registered against your developer account should be delivered.