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.
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I have checked your form and I can see all the emails are being sent to the email address you have configured in your form firstname.lastname@example.org, the Tests and the notifications :
I would suggest to whitelist our IP Addresses :
IF after doing that, you are still getting the issue, let us know and we will be glad to help you.