Advanced Comment Trigger provides a new trigger category allowing automatic unpublishing of comments based on more fine-grained criteria than the default "new comment added" trigger. Currently, this module can unpublish comments based on the number of hyperlinks in them. It can also exempt this restriction...
This module allows you to use the Akismet web service to protect your site from being spammed. Originally implemented by markus_petrux. Sept 5, 2008 Update: this module is unsupported. Similar modules include Antispam (which includes Akismet protection), Mollom or Spam.
AntiSpam module is the successor of the Akismet module, and it provides spam protection to your drupal site using external antispam service like Akismet. AntiSpam module is fully compatible with Drupal 6.x (Akismet module for Drupal 6.x release had many compatibility issues and was not usable as it...
Bad Behavior is a set of PHP scripts which prevents spambots from accessing your site by analyzing their actual HTTP requests and comparing them to profiles from known spambots. It goes far beyond User-Agent and Referer, however. The problem: Spammers run automated scripts which read everything on your...
BlockAnonymousLinks is a simple module which blocks comments from anonymous users that contain links. It relies on the fact that most spam messages contain hyperlinks and also on the fact that (for now) (most) spambots don't register on the sites they want to spam. It tries to block comment-spam at an...
A CAPTCHA is a challenge-response test most often placed within web forms to determine whether the user is human. The purpose of CAPTCHA is to block form submissions by spambots, which are automated scripts that post spam content everywhere they can. The CAPTCHA module provides this feature to virtually...
The CAPTCHA Pack module contains several CAPTCHA types for use with the CAPTCHA module. The CAPTCHA Pack module is meant to provide lightweight, yet effective alternatives for the traditional image CAPTCHA, which is undesirable in certain situation (e.g. bandwidth restrictions, cpu restrictions, accessibility...
Requires Captcha Update: Welcome Awolfey as a new maintainer for this project. Inspired by this discussion and the fact that many Drupal pages are plagued with endless amounts of spam. While modules like akismet and spam offer a great way of filtering the spam after it's being submitted the purpose of...
Country Ban can be used to set countries to "read only" or to ban their access entirely. Setting a country to "read only" disables all account access for that region, automatically logging out any user which resides there and preventing new accounts from being generated. Setting a country a complete...
The Egglue CAPTCHA module uses the Egglue Semantic CAPTCHA web service for generating over 10,000 knowledge-based, accessible CAPTCHA challenges on a Drupal site. The CAPTCHA module is required. For the example CAPTCHA challenges, correct responses can be ('spread', 'play') or ('cut', 'amplify'), etc.,...
Gotcha is sort of a take off on "captcha." The idea was first mentioned on http://drupal.org/node/166921 as a possible way to trick spam bots who try to use the Drupal contact form. I don't particulary like the extra step humans are required to perform in these "verification" methods, and some just...
This email obfuscation module works similar to the technique described at the list apart article http://www.alistapart.com/articles/gracefulemailobfuscation/. It uses an input filter to "hide" email addresses, then uses javascript to "unhide" them for normal users. It also implements the core contact...
Hashcash is a module which implements the Hashcash algorithm to help protect sites from spam. This module is similar to the popular wordpress plugin wp-hashcash. Administrators are able to specify which roles need to pass a Hashcash check, and also which forms should have the hashcash check inserted...
Invisimail provides a content filter to hide email addresses from spam-bots. Email addresses are converted to ascii code and optionally written to the page using a concatenated JavaScript "write" command. The email addresses will appear on the page normally, but their html source will be obscured so...
The Spam module provides numerous tools to auto-detect and deal with spam content that is posted to your site, without having to rely on third-party services. The Spam module provides a trainable Bayesian filter, automatic learning of spammer URLs, flagging of content with an excessive number of links,...
The purpose of Spamicide is to prevent spam submission to any form on your Drupal web site. Spamicide adds an input field to each form then hides it with css, when spam bots fill in the field the form is discarded. The field, and matching .css file, are named in such a way as to not let on that it is...
The SpamSpan module obfuscates email addresses to help prevent spambots from collecting them. It implements the technique at the SpamSpan website (a German version is also available). The problem with most email address obfuscators is that they rely upon JavaScript being enabled on the client side....
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