This method is deprecated and was replaced with getOrCreateSenderEmail.
Updates sender details (only provided fields will be updated).
If from_email is changed - a verification code will be sent to new email address.
If verification is needed, a verification email will be sent to the user, and verification_needed will return true.
New sender details.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.