Apple is streamlining its privacy infrastructure by unifying the email domains for two of its key services: Sign in with Apple and iCloud+ Hide My Email. Starting later this summer, new email addresses generated through these tools will use the domain private.icloud.com, replacing the current split setup where Sign in with Apple uses privaterelay.appleid.com and Hide My Email uses iCloud.com-based addresses. This change is backend-only and won’t affect user experience directly.

The move is expected to coincide with the release of iOS 27 in September. While existing email aliases will continue working, developers and email service providers must update their systems to recognize the new unified domain. This includes adjusting email validation logic, domain filtering, and routing rules that currently rely on Apple’s older relay domains.

Apple hasn’t explained the reasoning, but a single domain should reduce confusion and simplify integration for third-party platforms. It also reflects Apple’s ongoing effort to make privacy tools more seamless for users and developers alike. No action is required from end users, but technical teams will need to prepare for the transition before the fall software rollout.