Detect Spam

Access IMAP-mailboxes automatically, delete spam marked by filtering software like spamassassin, get reports in regular intervals. Additional features: multi mailbox access, extended spam filtering can be integrated, test mode, no database needed. Platforms: Windows, Mac, Linux

Spamato is a spam filter system that combines several anti-spam techniques, from which thousands of users benefit. It is available as an add-on for Thunderbird and Outlook, and as a stand-alone proxy for other email clients. IMAP and POP are supported. Platforms: Windows, Mac, Linux

SPAM-Buster is a Java application for filtering SPAM based on statistical algorithms (currently Bayesian). The platform independant application can be used as graphical end-user client and additional service for mail server. Platforms: Windows, Mac, Linux

Fast, intelligent, automatic spam detector using Paul Graham style Bayesian analysis of word counts in spam and non-spam emails. Filtering adapts to personal tastes automatically. No manual rule creation required. Intended for use with procmail, maild Platforms: Mac, BSD, Solaris, Linux

The Spam Secretary is an anti-spam email filter based on the article at http://www.paulgraham.com/spam.html. It is written in python and is easy to install. It is mailclient independent, and the hope is that it will be MDA independent as well. Platforms: Windows, Mac, Linux

WebASK is a web based tool for adminbistrating your queue's with ASK (Active Spam Killer) another sourceforge project. Platforms: Windows, Mac, Linux

Installation - Unpack in your modules folder (usually /sites/all/modules/) and enable under Administer > Site Building > Modules. Requirements: - Drupal 5.x - Drupal Spam module Platforms: Windows, Mac, *nix, PHP, BSD Solaris

Gotcha adds a field labeled "Subject" at the top of the contact form. It uses a "div" tag to render the field as "display: none" so human users shouldn't see it, and won't enter any data there. The suspected spam bot will see "Subject" and be enticed to enter something there. There is descriptive... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

Simple lockfile to detect previous instances script implements a simple lockfile to ensure that only one instance of an application is alive at any given time. Platforms: Windows, Mac, *nix, Python, BSD Solaris

Linasf is a Spam filter developed completely on PHP. It’s power comes from it’s design, it comprises a Bayesian Filter for a first categorization of content as well as user defined rules, and finally it’s all weighted with an Artificial Neural Network. The power of this design (roughly the... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

Active Spam Killer (ASK) protects your email account against spam by confirming the sender's email address before actual delivery takes place. The confirmation happens by means of a "confirmation message" that is automatically sent to all "unknown" users Platforms: *nix

Adds CAPTCHA anti-spam methods to WordPress on the comment form, registration form, login, or all. In order to post comments or register, users will have to type in the code shown on the image. This prevents spam from automated bots. Adds security. Works great with Akismet. Also is fully WP,... Platforms: PHP

Defensio is an advanced spam filtering web service that learns and adapts to your behaviors and those of your readers.Advanced features such as support for OpenID, detailed statistics, charts, RSS feed of our comments (innocent and spam) and counter widget are also available.Defensio aims to be... Platforms: PHP

This project is to develop actionscript 3.0 libraries that detect a charset of external text file because I cannot find this kind of libraries and classes.Now it is available for you to detect charset only Japanese ( shift-jis, euc-jp, utf-8, iso-2022-jp). Platforms: PHP

WP Spam Hitman is based on set of rules and concept of hitpoint. With right set of rules and hitpoint level you can eliminate most or even all of the spam on you blog. It works in 3 modes - Delete, Moderation, Spam and is quite customizable. It allows to set unlimited set of rules - both - simple... Platforms: PHP

The Distributed Checksum Clearinghouses or DCC is an anti-spam content filter that runs on a variety of operating systems. As of 2010, it involves millions of users, more than six hundred thousand client computer systems, and about 200 servers collecting and counting checksums related to more... Platforms: *nix

602LAN SUITE is an easy-to-install and manage all-in-one network software suite providing secure e-mail services with anti-virus & anti-spam, fax support, built-in firewall with NAT and web content filter proxy for controlled Internet sharing. Combine the content based Bayesian antispam filter,... Platforms: Windows

A growing number of Internet users are complaining about a new kind of popup advertising windows that suddenly appear on their screens. This new kind of spam, known as "IP spam" or "net spam", is generated through the internal Windows® messaging service, which is actually a tool provided to... Platforms: Windows

E-mail encoder ciphers e-mail address so it can't be found by spam-robots which scanning HTML-pages. It has four encode methods: from simple (not encoded) link up to JavaScript (address extracting is possible only by manual processing). So functionality of the link is completely kept! The program... Platforms: DOS, Windows

No Hawkers - Antispam is a peer-to-peer spam stopping solution. Using the same community technology that makes other products some of the largest sharing communities in the world No Hawkers - AntiSpam links you into every other person in the world using the software. You receive second by second... Platforms: Windows