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.
Sorry for the inconvenience.
To prevent bouncing related issues, please see this guide: How to Prevent Email Bouncing Related Issues.
We highly recommend users to set up SMTP sender on their form to have more control over the emails. Here's a guide on How to Setup SMTP for a Form.
If issue still persist, please try to contact your email provider and ask them to whitelist JotForm email address. You can find JotForm Email addresses in this guide: Whitelisting JotMails IP Addresses.