Apple announced on August 24, 2026, that new Sign in with Apple email addresses will be issued on the private.icloud.com domain starting later this year. Previously, these addresses were issued on privaterelay.appleid.com. Existing addresses on the old domain will continue to function and forward mail without interruption, according to developer.apple.com.
The change follows community feedback and a review by Apple, which also confirmed that iCloud+ Hide My Email addresses will remain on the icloud.com domain. Developers using Sign in with Apple are advised to update their account systems, email validation logic, and allowlists to accept addresses from both the new private.icloud.com domain and the existing privaterelay.appleid.com domain to ensure continued service compatibility.
Sign in with Apple is a privacy-focused authentication service that allows users to sign in to apps and websites using an Apple ID while hiding their personal email addresses. The update to the email domain reflects Apple's ongoing efforts to enhance user privacy and security. This move aligns with Apple's broader privacy initiatives and is relevant to developers integrating Apple's sign-in services into their platforms.
Developers can find detailed guidance on the changes and how to implement them on Apple's official developer site. The update is scheduled to take effect later in 2026, with no disruption to existing users expected during the transition period.