You can e-file or you can choose to file by mail. TurboTax will not mail it for you. If you choose to file by mail, you need to print it, sign and date it in ink, and mail it out yourself.
To change to e-filing:
https://ttlc.intuit.com/community/e-file/help/how-do-i-change-from-mail-to-e-file-in-turbotax-online...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**