You can change your account's email address if you get a new one. All renewal notices, receipts, and communications about your account's products will go to the new email address.
Changing your GoWebsite account's email address does not change your domain name registrant information. If you want to update that, see Change contact information.
If you want to change your email address because you cannot log in to your account or receive password resets, see Submitting a Change of Account/Email Update Form.