Custom email address not available

I have shared a custom domain with my spouse. When trying to create an email address with her firstname@the domain.com, she gets a pop up saying that the address is not available.


when I review the addresses connected to the domain via iCloud.com/icloudplus, the email address does not exist. How can I clear the pop up so that the address can be created?

Posted on Dec 1, 2025 1:44 PM

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Posted on Dec 2, 2025 3:32 AM

Is your spouse’s apple account two-factor authentication turned on?

If not, you have to turn it on because of the requirements of using custom email domain.

Also be sure you need to have a primary iCloud Mail email address set up to use a custom email domain.

2 replies

Dec 2, 2025 6:03 AM in response to Paultkd

See if this support article provides any suggestions --> Use Custom Email Domain with iCloud Mail - Apple Support


If not, ask Apple. Refer to this page for Apple Support features ➔ Contact - Official Apple Support

Select from the presented options until you find a solution for your issue, or see if there is a chat or phone call contact method offered lower on the page under “Get more help” (you sometimes have to narrow down the options multiple times before this is shown). If you do not see your issue, keep experimenting with any series of selections until you reach one that offers a chat session or a telephone call and get the representative to redirect you.


This support article has various country telephone numbers for contacting Apple for support and service ➔ Contact Apple Support - Apple Support For some countries look under “Other” listing at the end of the list. Not every country has telephone support, and phone numbers may only work when calling from the same country.


Custom email address not available

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