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 the log for your email addresses and noticed that the emails are being sent, I see that you are using more than one email in the notification and this is not properly set, please follow this guide in order to send the email notifications to multiple recipients: http://www.jotform.com/help/39-Send-Notifications-to-Multiple-Recipients.
If the issue still persists, please ask your email provider to white-list our IP addresses, do note that white-listing our IPs will work only if you are using our default sender email addresses, you will find our IPs here: http://www.jotform.com/help/145-Whitelisting-JotMails-IP-Addresses.