JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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 the email notifications of the mentioned forms and it appears the sender email has not been specified.
Kindly select a sender email then test by submitting your form.
Do let us know if the issue persists after specifying the sender email
that e-mail must indicate the sender?
You can use either
If you require you can set up your own custom sender email so that the email will have your personalized email as the sender.
Kindly refer to the following guides on how you can do this.