> ## Documentation Index
> Fetch the complete documentation index at: https://help.kajabi.com/llms.txt
> Use this file to discover all available pages before exploring further.

<AgentInstructions>

## Submitting Feedback

If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback:

POST https://help.kajabi.com/feedback

```json
{
  "path": "/articles/contacts/manage-your-contacts/how-recaptcha-helps-you-maintain-a-healthy-mailing-list",
  "feedback": "Description of the issue"
}
```

Only submit feedback when you have something specific and actionable to report.

</AgentInstructions>

# Maintain a healthy mailing list with reCAPTCHA

> Validate form submissions and protect your site from spam using reCAPTCHA to build a high-quality contact list.

Kajabi helps you build and maintain a healthy mailing list consisting of high-quality contacts by helping you validate your form submissions.

## What is reCAPTCHA?

To protect your website from spam and abuse, a Google service, reCAPTCHA, ensures that each contact submitted to your site is reputable.

When it comes to protecting your site and designing a frictionless, user-friendly interface we do not take it lightly.

That is why Kajabi has implemented reCAPTCHA to protect your site with the least obtrusive type available.

You may recognize reCAPTCHA from various sites that prompt you to perform the task of selecting images of crosswalks, traffic lights, or cars.

Rather than the manual approach of checking boxes with certain images in them, the invisible reCAPTCHA is only invoked when it detects potentially malicious traffic.

[Learn more about reCAPTCHA](https://developers.google.com/recaptcha/docs/versions).

## How reCAPTCHA helps a business

Forms on Kajabi are set to use double opt-in by default, but if you choose to disable double opt-in, your Forms may be at risk for disreputable submissions.

[What is a double opt-in?](../../marketing/forms/how-to-set-up-a-form-with-double-opt-in#h_01EH2M6P3MQHHQWTZ33B3FND2X)

**This is where reCAPTCHA can help.**

With reCAPTCHA, Forms that do not use double opt-in will still be protected by preventing bots or other potentially malicious individuals from completing your Forms.

With Kajabi, you can feel confident knowing that your site is protected so that you can continue to share the value you have to offer with a healthy mailing list.

## Enable reCAPTCHA

1. Open the **Settings** tab from your Dashboard.
2. Click **Form Settings** under the Site Settings section.
3. Then, click **Add reCAPTCHA to single opt-in forms** to enable.
4. Confirm the prompt to complete the process:

<div className="w-full aspect-video">
  <iframe src="https://fast.wistia.net/embed/iframe/n3tgkqtm9h" allow="autoplay; fullscreen" allowFullScreen className="w-full h-full" />
</div>