Mailed returns don't get Accepted or Rejected. And Turbo Tax will always say Ready to Mail. They don't know if or when you actually mailed it. The only way to know if the IRS got it is to mail it with a tracking number from the post office.
They are not processing mailed returns right now. The mail is stacking up in trailers at the IRS.
See this IRS page for the latest information
https://www.irs.gov/newsroom/irs-operations-during-covid-19-mission-critical-functions-continue
