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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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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.
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I have checked the email log for the three email accounts you are using in your form :
And I can see all emails are being sent, only for the second email address there are two emails that were not sent, but the most recent ones were sent, so I would suggest you to follow this guide in order to prevent bouncing issues : http://www.jotform.com/help/208-How-to-setup-email-alerts-to-prevent-email-bouncing-related-issues
And if the issues persists, you can ask your email provider in order to add our IP Addresses to the whitelist, you will find our IP Address on this link : http://www.jotform.com/help/145-Whitelisting-JotMails-IP-Addresses
Please, ask the email recipients to search the email in their Junk and Spam folders, emails should be there.
Let us know if you still get the issue after following each advice provided above, we will be glad to assist you.