Personalize iCloud Mail: How to Buy a Custom Email Domain in iOS | PCMag
unable to manage custom domain : r/iCloud
How to Set Up Custom Email Domains with iCloud Mail - TidBITS
When you subscribe to iCloud+, you can use up to five custom domains to send and receive email with iCloud. | by Dale Clifford | Internet Stack | Medium
Thoughts on Custom Domains in Apple's iCloud Mail
How to set up an iCloud Mail custom email domain [Video] - 9to5Mac
How to Set Up Custom Email Domains with iCloud Mail - TidBITS