Your custom email domains are expiring soon.

The email warning you received about your custom email domain expiring soon is related to Apple's iCloud+ Custom Email Domain feature. This feature, introduced with iOS 15 and iCloud+ in 2021, allows you to use your own domain (such as you@yourname.com) for sending and receiving email through iCloud Mail. However, it requires an active iCloud+ subscription, which is the paid tier of iCloud storage (starting from the 50GB plan at approximately $0.99/month or higher tiers).

The warning you are seeing is almost certainly not about your domain name itself expiring at your registrar (such as GoDaddy, Namecheap, or another provider). Instead, it indicates that your iCloud+ subscription is either nearing its renewal date, has lapsed, or has encountered a payment issue. Apple sends these urgent notifications when the subscription that powers your custom email addresses is at risk, because without an active iCloud+ plan, the ability to send and receive new emails through your custom domain will stop working. As of late 2025, there is no widespread policy change or deadline ending the custom domain feature itself, so this is a standard subscription-related alert.

To continue using your current custom email address without interruption, the simplest solution is to ensure your iCloud+ subscription remains active. You can check its status on your iPhone or iPad by going to Settings → [your name] → iCloud → Manage Account Storage (or Subscriptions), on a Mac through System Settings → Apple ID → iCloud, or on the web at icloud.com under Account Settings. If the subscription has expired or payment is due, renewing it—typically automatic if your payment information is current—will restore full functionality. Even if the subscription lapses briefly, your existing emails will remain accessible in iCloud Mail, but new incoming messages will bounce back to senders, and you will be unable to send from the custom addresses.

If you prefer not to continue paying for iCloud+, you have the option to remove the custom domain from your iCloud account. You can do this by visiting icloud.com, navigating to iCloud+ → Custom Email Domain, and managing or removing the domain. Once removed, email routing through iCloud stops, but you retain full control of your domain. To keep receiving mail at the same address, you would need to point your domain’s MX records to another email provider, such as Google Workspace, Zoho Mail, Microsoft 365, or your original host. This process involves DNS changes and may require exporting old messages, but it is entirely possible.

For a quick confirmation, check the sender of the warning email (it should come from an @apple.com or @icloud.com address) and see if the message mentions iCloud+, subscriptions, or billing. If you can share more details—such as the exact sender address, the precise wording, or when you first set up the custom domain—I can help pinpoint the situation even more precisely. In most cases, simply renewing your iCloud+ subscription will resolve the issue and keep everything running smoothly.