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I have checked and email address of your Notification is in the bounce list. Our system gave following result:
email@example.com is IN the bounce list
Reason(s) : smtp; 550-5.7.1 Unauthenticated email from yahoo.com is NOT
I have removed it from the bounce list.
You can follow this guide on How to setup email alerts to prevent email bouncing related issues.
Also you should contact your email provider and ask them to Whitelist JotMails IP Addresses.
Please test your form and check if you are receiving submissions now.
Let us know if you need further assistance.