I want to change my AppleID email (let's say, email1) to another email of mine (email2). There used to be an AppleID associated with email2, but I deleted that AppleID. It's been two months since it was deleted, but when I try to change my AppleID's email from email1 to email2, I get the error:
This email address is not available. Choose a different address.
You can’t reuse the email address from a deleted Apple ID. From the Apple Support Support article below:
Can I use the primary email address for my deleted Apple ID account to create a new Apple ID or with another existing Apple ID account?
No, once your Apple ID is deleted, you can't use the email address that you used with it to create a new Apple ID. In addition, you can't use that email address with another existing Apple ID except as a rescue email. Also, if your primary Apple ID email address is with a Custom Email Domain, it can never be reused to create an Apple ID after your Apple ID is deleted, even if the domain ownership changes.
How to delete your Apple ID account.
You can’t reuse the email address from a deleted Apple ID. From the Apple Support Support article below:
Can I use the primary email address for my deleted Apple ID account to create a new Apple ID or with another existing Apple ID account?
No, once your Apple ID is deleted, you can't use the email address that you used with it to create a new Apple ID. In addition, you can't use that email address with another existing Apple ID except as a rescue email. Also, if your primary Apple ID email address is with a Custom Email Domain, it can never be reused to create an Apple ID after your Apple ID is deleted, even if the domain ownership changes.
How to delete your Apple ID account.
Unable to Change Email of AppleID
