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.
Please try doing the following:
1. Add firstname.lastname@example.org to your safe sender list, in ATT.net email.
2. If you can whitelist a domain, please add jotform.com.
3. If you can whitelist an email, please add email@example.com in the list.
If it still doing the same or if you cannot fix this with ATT.net, I would suggest changing your email address to your alternate email or to free email addresses such as Gmail.
Check the following guide for more information about the email problem: