"Ready to mail" means the return has not been efiled. It means TurboTax thinks you plan to print and mail the return. Is that how you wish to file, or do you want to go back in and change it to efile? It's best if you can efile--it's safer, faster, and if you are due a refund, should be processed faster. We can tell you how to change the filing method to efile, if you wish.
If you DO wish to file by printing and mailing, then TurboTax doesn't mail it for you. You have to print, sign, date, and postal mail the return. Again, it's best to efile if you can.
