You've set up multiple email addresses but just realized the wrong one is your default. Here's how to change your iPhone's default email address.

You can change the iCloud account on your iPad by signing out of your old account and into a new one, or add a different account for app purchases.

There are plenty of good reasons why you might want to change your email account. You want or need to change email providers, you hate your current email address, or you’ve become inundated with spam.