Hi Jian, the "Allow response editing" option must be enabled in google forms. Otherwise, Formfacade will not be able to track the email status. Open your form in Google Forms > click Settings > click Responses > enable the toggle button for the "Allow response editing" option > click on the addon icon > click Formfacade > click More options > click Update to sync the changes > You can then submit a response to test the confirmation email. If you face any issues, login to Formfacade > click on the form to open it > Edit page will be displayed > click Responses > In the Responses page, click on the response to view the details > check the Additional details section. Does it display the email address for Email respondents? Please check and confirm. - By default, it will display the configure link that indicates that the emails have not been set up. - If the emails are configured and sent successfully, email addresses will be displayed. - Otherwise, it will display the error message or 📫 icon next to the email to indicate that the email was not delivered.