iCloud+ Hide My Email Addresses Will Stay on icloud.com, Apple Confirms

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Apple has confirmed that Hide My Email addresses created through iCloud+ will continue to use the icloud.com domain, reversing an earlier plan after developer and user feedback. Starting later this year, however, new private relay addresses generated through Sign in with Apple will be issued under a different domain: private.icloud.com. The two privacy features, which are often confused, are now diverging in how their addresses are structured.

What Apple Announced

In a brief developer news post, Apple clarified the domain policy for two related but distinct privacy features: Hide My Email (part of iCloud+) and the private email relay used by Sign in with Apple. According to the notice, Hide My Email addresses - the disposable, forwarding email addresses iCloud+ subscribers can generate for sign-ups, newsletters, or online forms - will keep using the icloud.com domain going forward, as they always have.

This matters because Apple had apparently considered consolidating or changing this domain structure, and the decision to keep it unchanged came directly from feedback submitted by developers and users through Apple's own channels.

The Other Half of the Story: Sign in with Apple

While Hide My Email stays the same, Apple is making a real change to a separate but related system. Sign in with Apple lets users log into third-party apps and websites without revealing their real email address, instead relaying messages through a private, auto-generated address. Historically, these addresses were issued under domains like privaterelay.appleid.com.

Starting later this year, newly generated Sign in with Apple private relay addresses will instead use the private.icloud.com domain. Existing addresses issued before the change are expected to keep working as before, but any new relay address created after the cutover will carry the new domain.

Why Two Features Use Different Domains

It's easy to conflate Hide My Email and Sign in with Apple's email relay because both hide a user's real address behind a forwarding alias. But they serve different purposes: Hide My Email is a general-purpose tool for any web form or subscription, while the Sign in with Apple relay is tied specifically to app and website authentication flows.

By keeping Hide My Email on icloud.com and moving the Sign in with Apple relay to private.icloud.com, Apple is effectively giving developers and mail administrators a clearer way to distinguish traffic coming from each system - which is useful for setting up mail filters, SPF/DKIM checks, or spam rules tied to a specific domain.

Why This Matters for Developers and Businesses

For everyday iCloud+ subscribers, this announcement changes nothing in practice - addresses you've already created, and any new ones, will keep the familiar icloud.com format, so no re-registration or filter updates are needed.

The real impact falls on developers and businesses that support Sign in with Apple as a login option. Backend systems, mail delivery pipelines, and spam filters that whitelist or validate incoming addresses by domain will need to account for private.icloud.com once the new domain goes live later this year. Failing to update domain allowlists could cause verification emails or notifications sent to these relay addresses to bounce or land in spam.

This kind of domain change is also a reminder of how much backend infrastructure depends on Apple's privacy-relay email system. Any service that stores or validates user emails by domain pattern - rather than simply accepting any address - should review its logic ahead of the rollout.

Takeaway

Apple didn't unify its two privacy-focused email systems under one domain, as some had speculated might happen. Instead, Hide My Email keeps its established icloud.com identity due to community pushback, while Sign in with Apple's relay addresses get a distinct new home at private.icloud.com starting later this year. Developers supporting Apple sign-in flows should plan to whitelist the new domain before the transition takes effect.

Reference: https://developer.apple.com/news/?id=1ptvdtcm

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