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.
To prevent this kind of issues you need to be very careful at the time of creating your forms Notifications. And to solve your issue I will recommend you to take in account the next form settings:
1. Make sure that all of your form's Email Alerts (on each form) are set this way:
- Sender Email: firstname.lastname@example.org
2. Sender Name: Make sure to assign it to a field from the form where the user enters her name (usually the Name field or similar).
If you leave the Sender Name with Please Select as a value, e-mail servers will likely reject messages coming from our servers as SPAM.
You can find more important instructions in the guide How to setup email alerts to prevent email bouncing related issues.
I hope this helps!