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<br />Is it possible to add a feature?<br />Drupal has the following;<br /><br />http://drupal.org/project/Modules/category/66<br /><br />here are some I found :<br />http://drupal.org/project/subscriptions<br />http://drupal.org/project/notify<br />http://drupal.org/project/comment_notify<br />http://drupal.org/project/commentmail<br />