Apple Moves Hide My Email and Sign in with Apple to `private.icloud.com`

Apple said new anonymous relay addresses created through iCloud+ Hide My Email and Sign in with Apple will use the shared domain private.icloud.com, replacing the current split between privaterelay.appleid.com and icloud.com for newly generated addresses. The company said the change will roll out later this summer, while existing relay addresses on the legacy domains will continue to function without interruption.

Apple told developers, app operators, and email service providers to update validation logic, allowlists, filtering, suppression lists, and routing rules so messages sent to private.icloud.com are accepted alongside the older domains. The change has drawn criticism from some users, who argue that a distinct relay domain could make Hide My Email addresses easier for websites and apps to detect and potentially block, weakening the privacy feature’s usefulness for anonymous sign-ups.