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.

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    Return email says "This Sender Failed our fraud detection..."

    Asked by lellrick on February 02, 2017 at 10:23 AM

    Why do I get an email with the below message:

    The same message is also on the Thank You email:

    Page URL:

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    JotForm Support

    Answered by Kiran on February 02, 2017 at 11:31 AM

    It seems that you are using a verified custom email address as the sender email address in your notification. Your email server may be blocking/restricting the emails being received using a different email address sent by JotForm servers. You may consider changing the sender email address by configuring SMTP email address. Please refer to the guide below that can help you with setting up an SMTP email address.


    Hope this information helps! Please get back to us if the issue still persists. We will be happy to assist you further.