Best way to filter out spam form fills? | Community
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megweber221
Level 2
July 21, 2026
Question

Best way to filter out spam form fills?

  • July 21, 2026
  • 1 reply
  • 15 views

We noticed one of our forms was getting several spam form fills, so we added “CAPTCHA = Trusted” as a constraint attached to the “Fills out Form” trigger for a handful of our smart campaigns.

However, we realized this was causing form fills to not go through, even when I tested myself, as a human. After I removed the CAPTCHA = Trusted constraint, my form fill went through immediately. 

What is the best way to filter out spam/bot form fills on Marketo forms that live on Marketo landing pages or our website? 

 

 

    1 reply

    BlaneMcMichen-1
    Adobe Employee
    BlaneMcMichen-1Adobe Employee
    Adobe Employee
    July 21, 2026

    I wrote a article about this.  You may want to give it a read and also check the comments because others have added to the conversation after the post.

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