Why my form is not submitting?

Hello.  All of a sudden, my form is not longer collecting and or storing data. When a form is submitted, the Thank You, you form has been submitted message appears, but nothing is stored. I have checked and the integration with Google sheets is still connected.

This form is used for production purposes and I need to find a solution asap.

Thank you for your assistance.

Via 404-609-6346

I cloned and tested your form with Spreadsheet integration and I couldn't replicate this problem. Could you please test and let us know if the issue persists?

If you're still experiencing this issue, please share your Spreadsheet to our Support email: jotformsupport@gmail.com

We'll wait for your response.

Thank you!

Still no confirmation page or email to notify of a submission.
Please advise.
Thanks
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I checked the email associated with your form and I found out that it ended in the Bounce list and the reason is below: 

Reason(s) : smtp; 550-5.7.1 The user or domain that you are sending to

I removed it from the Bounce list so you should be able to receive the submissions now.

But I wasn't able to check if your submissions went to Spreadsheet. 

Please check now and let us know if it works for you.

Thank you!

Thank you very much!
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