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 checked your account's email history and I can see that the emails being sent to hemang_****_2000@******.com and firstname.lastname@example.org failed to send. These two addresses were added to the bounce list, which is why the emails kept failing. However, I have now removed these two email addresses from the bounce list so they should receive the next emails successfully.
You can also follow our guide here on How to Remove Your Email Address from Bounce List. Then to prevent further bouncing related issues, please follow our guide here: How to Prevent Email Bouncing Related Issues.