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!This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.


Mollom protects your site from spam, profanity, and unwanted posts. Focus on public and social engagement. Focus on things that matter.

Important: Ensure you have the latest release of the Mollom plugin installed first.

How do I get Mollom API keys?

  1. Sign up on Mollom.com.
  2. In your Site manager, register the site you want API keys for.
  3. Click "View keys" to see your public key and private key.

My Mollom API keys do not work?

There are multiple possible causes with corresponding error messages; check whether the error message hints at the cause already. The most common issues:

  • Invalid keys: The API keys were not copied correctly; try to copy and paste them again.
  • Time offset: The local time of your server/operating system is incorrect and not synchronized with Coordinated Universal Time (UTC); consult your hosting provider or server operator to correct the server time (not timezone) and to enable an NTP daemon to keep it synchronized.
  • Unable to reach Mollom: A firewall on your server/computer or infrastructure may block outbound HTTP requests to Mollom servers; consult your hosting provider or server operator to allow outbound HTTP requests to *.mollom.com.
  • Try again later: The service might be undergoing temporary maintenance work for Mollom Free users; it should normally be back up after a few minutes.

How can I test Mollom?

Do not test Mollom without enabling the testing mode. Doing so would negatively affect your own author reputation across all sites in the Mollom network. To test Mollom:

  1. Enable the "Testing mode" option on the Mollom plugin settings page.
    Note: Ensure to read the difference in behavior.
  2. Log out or switch to a different user, and perform your tests.
  3. Disable the testing mode once you're done with testing.

Mollom does not stop any spam on my form?

Do you see the link to Mollom's privacy policy on the form? If not, then the form is not protected.
Note: The privacy policy link can be toggled in the plugin settings.

The Mollom CAPTCHA and other elements do not appear?

Your theme does not use the comment_form() function (introduced in WordPress 3.0) to output the comment form. Ensure the comments.php file of your theme contains:

<?php comment_form(); ?>

Have a look at WordPress' default Twenty Twelve theme to see how it is used.

Does Mollom support plugin XYZ?

Can I protect other forms?

Out of the box, the Mollom plugin allows to protect the WordPress comment form only. Built-in support for other WordPress core entity forms (users, posts) will follow soon.

The Mollom plugin does not provide an API for other plugins and custom forms yet, but we're happy to discuss your needs. If you're interested, check the issue queue.

What if one of my visitors is blocked by Mollom?

Whenever a post is not accepted, the error message contains a link that allows users to report the incident to Mollom support staff, which is able to investigate and resolve the situation.
Note: False-positive reports are purposively not submitted to your own site, since actual spammers are trying to game Mollom by reporting their correctly blocked spam posts, too.

How do I upgrade from the old _WP-Mollom_ plugin?

  1. Deactivate, uninstall, and delete the old wp-mollom plugin (version 0.7.5 or older).
  2. Install the new Mollom plugin (version 2.0 or later).
  3. Re-enter your Mollom API keys.

There is no automated upgrade path, because the plugin has been rewritten from scratch. Re-installing the new is a matter of minutes. We're sorry for this one-time inconvenience.

Requires: 3.1.0 or higher
Compatible up to: 3.6.1
Last Updated: 3 years ago
Active Installs: 1,000+


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