Please check the spam folder on your email account as some mail providers put the return updates there and it might vary year to year. The TurboTax update email will tell you if the federal was accepted or rejected and if it was rejected, what needs to be changed.
Or please click here for a TurboTax tool to check your federal e-file status.
https://turbotax.intuit.com/tax-tools/efile-status-lookup/