To remove an email account from Mac Mail, go to “Mail” in the top menu bar and select “Preferences.” Select the email account you want to delete and click on the “Delete Account” button.
To delete an email account from Apple Mail on your iPhone, you can follow these steps:Open Settings app and tap Accounts & Passwords.Tap the account you want to delete and then tap Remove Account.Follow the prompts to confirm that you want to remove this account and then tap Done in the upper-right corner of your screen.
Mac Mail does not allow you to delete a mailbox.
You can delete the account from your iPhone, but it will still be connected to your Apple ID. You’ll need to delete the account from your Apple ID first.
There are two ways to remove an account from your iPhone.The first way is to go to the Settings app on your phone, select “Accounts & Passwords”, select your account, and then tap “Delete Account”.The second way is to go to the Settings app on your phone, select “iCloud”, select your account, and then tap “Remove From My iPhone”.