Apple is preparing an important update for two of its privacy-focused services: Sign in with Apple and Hide My Email. The company has informed developers that new relay email addresses will soon use a different domain, meaning websites and online services must update their systems before the rollout begins.
The announcement follows a developer notice issued on June 15. Apple urged developers and email providers to review account settings, email validation tools, allowlists, and routing rules to ensure a smooth transition.
What Is Changing?
Currently, Sign in with Apple creates private relay addresses ending in privaterelay.appleid.com, while Hide My Email generates relay addresses using icloud.com. Under the new system, both services will create new relay addresses using the unified private.icloud.com domain.
Importantly, Apple says existing relay addresses will continue forwarding messages normally. Therefore, current users should not lose access to their accounts or previously created email aliases.
Why Developers Need to Act
Many websites rely on domain-specific rules to recognize and process email addresses. As a result, services that only accept Apple’s older relay domains may reject new addresses created after the update.
Apple recommends reviewing account validation logic, allowlists, filtering systems, suppression rules, and email routing workflows before the transition begins. These changes will help ensure that users can continue signing up, receiving verification emails, and managing their accounts without interruption.
Potential Impact on Users
If developers fail to update their systems, users could experience several issues. They may struggle to create new accounts, reset passwords, receive login verification codes, or access other important account-related emails. Although existing relay addresses will continue forwarding messages, outdated website configurations could still cause account access problems.
Both Sign in with Apple and Hide My Email help users protect their personal email addresses while interacting with apps, websites, newsletters, and online stores. The upcoming domain consolidation simplifies Apple’s privacy infrastructure while maintaining those protections.
No Launch Date Yet
Apple has not announced when the new domain will officially become active. However, the company has made it clear that developers and email service providers should begin preparing immediately.
Although the update happens behind the scenes, it could affect millions of users if websites fail to adapt. By updating their systems early, developers can help ensure a seamless experience as Apple rolls out its new unified email domain.
