Apple: New Shared Domain for Sign in with Apple and Hide My Email by Summer 2026

Apple announced on its Developer Blog that by the end of summer, it will unify the email domains of Sign in with Apple and iCloud+ Hide My Email under one roof. The end goal is a single reference address: private.icloud.com.

Until today, the two features were operating on separate tracks. The relay addresses generated by Sign in with Apple were routed through privaterelay.appleid.com, while those from Hide My Email were linked to the domain icloud.com. From the next update, all new addresses produced by both services will be issued exclusively on private.icloud.com.

No Impact for End Users, but Developers Need to Act

Users already utilizing these services will not need to do anything: active addresses on the old domains will remain operational and continue to receive and forward mail without interruptions. The transition is transparent for the end user, but not for those managing backend systems.

Developers with apps or sites that integrate Sign in with Apple will need to ensure that their email validation logic and allowlists accept the new domain private.icloud.com in addition to the two existing ones. The same applies to email providers, who must review any filtering rules, suppression lists, or routing configurations that explicitly mention the old relay domains. Apple has not specified an exact date for the release, only indicating that it will occur in the second half of summer 2026.