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.
As there are multiple forms in your account, can you please let us know exactly which form is having this problem, so that we can take a look?
When it comes to setting up Autoresponders, please read the following guide: Creating-a-Form-Autoresponder
Please make sure that all the fields are correctly filled, to prevent bouncing related issues, as described here: How-to-setup-email-alerts-to-prevent-email-bouncing-related-issues
Please let us know if the issue persists, and which form this is about, and we would be happy to take a look and assist you.
The form is this http://www.jotform.com//?formID=51237669709668
I checked the autoresponder for that form and it appears to be set to be sent from your service:
The first thing to do would be to make sure your SMTP settings are correct and your servers settings haven't changed.
If you do not need the notifications to come from your services, set the "Sender E-mail" to "firstname.lastname@example.org" and your autoresponders should be sent without issue.
If you have any further questions, let us know and we will be happy to help.