JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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 question was addressed on the thread you opened a week ago: https://www.jotform.com/answers/902210
Two of your recipient emails were in bounce list: https://www.jotform.com/help/262-How-to-Remove-Your-Email-Address-from-Bounce-List
They have now been white-listed, so this should solve the problem. In addition to this, you may whitelist our domain names, if the issue continues, as we use Amazon SES method for "firstname.lastname@example.org" sender. Here are our domain names:
Let us know if you need more help.