Apple Event: May 7th at 7 am PT
After successfully creating a custom domain email address, is it possible to use that address as an Apple ID? When attempting to do this, it errors out "Alias email cannot be added as primary email." and appears to be treated as an alias. However, is the same custom domain was not hosted on iCloud, this would likely work.
It is an alias of your @iCloud.com email address.
Add and manage email aliases for iCloud Mail on iCloud.com - Apple Support
It is an alias of your @iCloud.com email address.
Add and manage email aliases for iCloud Mail on iCloud.com - Apple Support
An alias can't be used as a Apple ID email address. Based on what I have read, I suggest you leave your Apple ID email address as a 3rd party email address because you have more flexibility if you need to change the email address. For example, if the Apple ID got compromised, you can change it to another address. I also have read of many people who were locked out of their accounts when they forgot their password. Since the recovery email address is the @iCloud email address, if you forget your password, you also can't access your email to get emails from Apple to recover your account. You can set a rescue email address, but for some people, this hasn't worked.
Would love to know the answer to this too
Need to know this as well.
It treats the custom domain as an alias presently, which means it can’t be used.
Using iCloud+ custom email domain as Apple ID
