If you'd like your Email Receipt and Itinerary to be sent to another person or an alternate email address, open on your trip in the app and then tap "Resend Confirmation Email." You can then enter the correct email address, and tap "Resend Email."
Good to know
If you're requesting your email to be re-sent due to a typo in your email address, be sure to update your email in the app so that all future correspondence will be sent to the right place!
Your confirmation email is your official purchase receipt and can be used as an invoice.