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.
I have checked email address you provided and that email address was on bounce list. Our system gave following result:
firstname.lastname@example.org is IN the bounce list
Reason(s) : smtp; 550 Requested action not taken: mailbox unavailable or not local
I have now removed it from our bounce list and it should be working fine now.
You can follow this guide on how to check and remove the email from bounce list.
Also you can Whitelist JotMails IP Addresses.
Please test your form and check if you are receiving submissions now.
Feel free to contact us if you need any further assistance.