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.

  • Profile Image

    Is it possible to block a sender by email address or sending IP address?

    Asked by windingoak on May 11, 2017 at 06:00 PM

    One of my contact forms is receiving some harassing messages. I'm wondering if I can block the sender?



  • Profile Image
    JotForm Support

    Answered by Mike on May 11, 2017 at 07:30 PM

    Thank you for contacting us.

    If the messages are coming from the same IP address we can try to block it on our end. Please check this and provide us with the IP address if this is the case.

  • Profile Image

    Answered by windingoak on May 12, 2017 at 11:43 AM

    Yes, if you could block IP address, that would help. The client this form is for recently suffered a family tragedy and getting these harassing messages is upsetting her.

    - Steve
    Steven Palmquist
    Winding Oak LLC

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    JotForm Support

    Answered by david on May 12, 2017 at 12:22 PM

    I have blocked that IP from accessing the site but it may not fully block them from being able to fill out the form. 

    You can set up unique submissions through the form to limit each IP to only a single submission: