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.
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JotForm Support Manager
(Private)Answered by Jeanette on September 03, 2015 at 08:03 PM
After checking your form 51357902803959, I can see that the problem might relate to the custom sender email you have setup
Please change it to any of the default sender emails or if yo still want to customize it, please use this workaround: