How do I know that my federal extension filing was accepted? Do I get an email like I do if had filed the completed return?

[CassandraLO]

When you e-file your federal tax return extension using TurboTax, you will get an email confirmation letting you know if it was accepted or rejected, usually within 48 hours. You can also keep an eye on your e-file status or contact the IRS directly to check the status.

To contact the IRS:  1-800-829-1040  hours 7 AM - 7 PM local time Monday-Friday

"TurboTaxJohnW15 TurboTax TaxPro"

You may also print your 4868 form, to confirm it has been filed - How do I print my 4868 extension form after e-filing it through TurboTax Easy Extension?