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.
You need to do a real submission in order to properly test, the "Test button" will sent the notification to your account email address. Please check this guide: https://www.jotform.com/help/314-How-to-Properly-Change-and-Test-a-New-Email-Recipient-Address
In addition to this, you may check if the recipients are in bounce list: https://www.jotform.com/help/262-How-to-Remove-Your-Email-Address-from-Bounce-List
We checked with network solutions and looked to see if there was a IP block for Jotform. We did not find a block nor did we see Jotform trying to make a connection with Network solutions mailserver ip 22.214.171.124.
As for testing we did remove the email and added a Gmail email. That email worked fine. The issue seems to be from Jotform not sending the notification to Network solutions. We also experienced this same problem with a @att.net email address.
How shall we proceed with trouble shooting?
Your recipient email was in bounce list:
It has been white-listed now, so this should solve the problem. I would recommend you to white-list our Jotmail IP addresses within your email server (or ask for it to your email service provider).
Read this article for more details: http://www.jotform.com/help/145-Whitelisting-JotMails-IP-Addresses
Let us know if you need more help.