I appreciate you for sharing the result of the steps you've taken so far, coffeelady1.
Did you get an error for being unable to email in QuickBooks Desktop (QBDT)? If so, you can try the steps shared in this article about reauthorizing QBDT to continue using Gmail.
If it's a connection error to your email server, these articles would be a great help:
To learn more about connecting your email to QuickBooks, here's an article made handy for you: Connect your email to QuickBooks Desktop.
If none of the steps worked, please get in touch with our QuickBooks Team for a more in-depth investigation. I understand that you've already contacted us regarding this matter. However, they have the best tools that can identify the reason why you're unable to send emails and come up with a fix. Please follow JasroV's steps on how to reach us.
Be sure to get back to me for additional questions about the emailing process or concerns while working with QuickBooks. I'm always happy to help.
