Jun 8th, 2013
Update: As of April 2, 2018, Mollom will reach end of life. See https://www.mollom.com/eol
Here's how to use Mollom on your custom form (according to http://kahthong.com/2013/06/integrate-your-custom-drupal-forms-mollom-captcha-spam-protection)
/** * Implements hook_mollom_form_list(). */ function YOUR_MODULE_mollom_form_list() { $forms['YOUR_MODULE_CUSTOM_FORM_ID'] = array( 'title' => t('My custom form'), ); return $forms; } /** * Implements hook_mollom_form_info(). */ function YOUR_MODULE_mollom_form_info() { $form_info = array( 'mode' => MOLLOM_MODE_CAPTCHA, ); return $form_info; }