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.
I've fixed it for you. Here are the details of the issue:
email@example.com is IN Remove the bounce list
Reason(s) : smtp; 554 5.7.9 Message not accepted for policy reasons.
Your settings are correct upon checking some of your forms so I think the issue is with your hosting provider. We recommend adding us to your server whitelist settings. Here's our list: https://www.jotform.com/help/145-Whitelisting-JotMails-IP-Addresses.
Lastly, here's how you can remove your email from the bounce list: https://www.jotform.com/help/262-How-to-remove-your-email-address-from-bounce-list.