Validate system_send_email_action form submissions.

File

drupal-7.x/modules/system/system.module, line 3157

Configuration system that lets administrators modify the workings of the site.

Code

function system_send_email_action_validate($form, $form_state) {
  $form_values = $form_state['values'];
  // Validate the configuration form.
  if (!valid_email_address($form_values['recipient']) && strpos($form_values['recipient'], ':mail') === FALSE) {
    // We want the literal %author placeholder to be emphasized in the error message.
    form_set_error('recipient', t('Enter a valid email address or use a token e-mail address such as %author.', array('%author' => '[node:author:mail]')));
  }
}