Apple is unifying the email domains used by its two privacy-focused services—Sign in with Apple and iCloud+ Hide My Email—under a single shared domain: private.icloud.com. Starting later this summer, all new private email addresses generated through either service will use this domain, replacing the previous separate domains of privaterelay.appleid.com and icloud.com.

This change is designed to be seamless for end users. Apple confirms that existing addresses on the legacy domains will continue to function and forward emails without interruption. The move simplifies the backend infrastructure for Apple’s Private Relay email relay service, which masks users’ real email addresses to protect privacy.

However, developers and email service providers are advised to update their systems. Account validation logic, allowlists, filtering rules, and routing configurations that rely on the old domains may need adjustments to recognize private.icloud.com. Apple has published guidance for developers to ensure compatibility ahead of the rollout.