What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Your email ended up to the bounce list due to the following reason:
Reason(s) : 5.1.0 - Unknown address error 550-'Relay is not permitted.'
I have now removed it so hopefully it should be working fine now. Please read this article as it may help you to avoid this issue from happening again. How to setup email alerts to prevent "emails not being received" issues, though we can't assure you about this since it may depend on the bounce reasons.