If you get a new email address or no longer have access to an old one, updating your Apple ID is important for protecting your account. Here’s how to update your Apple ID.
Changing the email address you use as your Apple ID isn’t difficult under the right circumstances. If your Apple ID is a third-party email address, such as gmail.com or outlook.com, you can choose another third-party address when changing your Apple ID. But if your Apple ID is an Apple email address, like icloud.com, you’re unlikely to be able to change your Apple ID at all. We’ll cover that scenario in more detail below.
Read more: https://www.howtogeek.com/408142/how-to-change-your-apple-id-email-address/