How do I get my confirmation email sent to my updated email address?

You can update your email address by taking the following steps:

1. Sign in to your TurboTax Online account.
2. Select Intuit Account from the lower left corner.
3. This will take you to an Account Settings screen.
4. Click Edit at the right of the E-mail address line.
5. Enter your new email address and confirm it.
6. Enter your password.
7. Click Save, and you’re done.

https://ttlc.intuit.com/questions/2578442-how-do-i-change-my-turbotax-account-email