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.
The email address used for submission notifications is not in our bounce list. Have you checked your spam folder? The email notification is not properly setup: https://www.jotform.com/help/25-Setting-Up-Email-Notifications
Sender Name :Make sure you assign it to a field from your form where the user enters her name (usually the "Name" field -or similar)
In addition to this, you may white-list our domain names, if the issue continues, as we use Amazon SES method for "firstname.lastname@example.org" sender.