how to change E-mail Address on my Mac
Need to Change My E-mail Address. on My Mac
MacBook Pro 13″, macOS 11.2
Question marked as
Top-ranking reply
Your Apple ID email address or some other email address? If your Apple ID email address, note the restrictions in the article.
What to do after you change your Apple ID or password - Apple Support I suggest doing this before you change your Apple ID or password.