

This can be helpful if you have changed the Apple ID on a Mac or on an iPhone or iPad, and want to create a new email address specifically for it. You’ll also shortly get a system pop-up in Mac OS X asking “Add fro iMessage and FaceTime?” for which you should probably choose “yes” if you want to associate the newly created email with the Apple ID, offering another option for contacts to reach you through iMessage and FaceTime. Launch Mail app in Mac OS X and the new email address will have been created and added to the Mail app – you’ll get a welcome email indicating this.
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This will create a new email address, but not a or email address, which are no longer available. This is exclusively for people who use a separate email address to login with iCloud and Apple ID, maybe a or address, but want to create a new separate email address for whatever reason – maybe for easier logins, for web services, for using as a personal or private email address, for whatever. Obviously if your Apple ID already is or has an email address associated with it you won’t need to do this.
