TZ Anti Spam Filter   
http://www.trackzapper.com

Eliminate Junk E-Mail Spam, Spyware, Viruses & Tojans. Works with POP3, IMAP, HTTP servers like Yahoo! & Hotmial. This Anti Spam Filter - powerful e-mail checker programs with effective spam elimination. Discover the safe way to stop unwanted viruses & spam e-mails before they get to your PC. Can be used as an effective privacy tool. This is the easiest, most effective way to manage your incoming e-mails like a pro in seconds. TZ Anti Spam Filter & Killer is the best solution to fight the spam mails in your e-mail accounts. Filters the messages using a multiple criteria like spam words, friend list, blocked list, & state of the art algorithm rules. Your account passwords are encrypted by a powerful encryption technique, so its too difficult for any one to hack your passwords. All messages text whatever deleted or resident in the mailbox are saved in your hard drive and appears in the main window list, the reason for deletion or existence and other checking information are also stated.

Ad Nuker Popup Blocker & Spam Filter   
http://www.adnuker.com

Filter Junk E-Mail Spam, Ads, Pop Ups advertising, Viruses, Tojans & Spyware. Works with POP3 & IMAP. This FREE tool uses intelligent filtering of annoying Popup ads, e-mail spam, Spyware, Adware, Trojans, Viruses, Spyware Cookies. Unique features allow you to block all popups and spam or allow only the ones you want to receive. This easy-to-use popup stopper that gives you control of popup ads. Filtering spam mail with 5 different levels. AD NUKER is embedded in IE toolbar, Protecting you while you are surfing the internet from annoying ads & banners, You can enable or disable the popup ads by one click, Notifies you with a sound alert when a new popup is caught, Gives you statistics about pop-ups that have been caught during the last 24 hours, last week & since the installation, You can block or allow banners from being displayed onto your PC, Filtering spam mail with 5 different levels of security, You can determine spam words so that when such words are found in your mail, the mail is considered as spam, Lets you determine a Friend List & Blocked List that contains a list of people from which you don't want to receive any mails. We've arrived to rid the Internet of these annoying ads forever and give you, the Internet user, your freedom back!

Alchemy Spam Filter for Outlook Express   
http://www.alchemy-lab.com

Get rid of spam with Alchemy Spam Filter for Outlook Express! Alchemy Spam Filter is a plug-in module for the Outlook Express e-mail program and represents a self-adaptive unsolicited mail protecting tool. The main method used to combat spam is the statistical algorithm of Bayes. The Bayesian filter is the most efficient anti-spam solution nowadays. Based on self-learning technology, it is more effective than other traditional anti-spam techniques, based on static blacklists checking and keywords databases. Properly learned, this filter can reach spam detection rate up to 98% with minimum false positives. Alchemy Spam Filter also supports the user defined white, black and ignore lists that can be a useful addition to the Bayesian engine correcting its behavior.

AGAVA AntispamServant plugin for "The Bat!"   
http://www.agava.com

Trainable antispam-plugin for "The Bat!" on the basis of the AGAVA AntispamServant spam filter. Developed with the assistance of the Ritlabs company and is sold at a special price for "The Bat!" users. Why is it more convenient for "The Bat!" users to use this plugin: - It uses "The Bat!" built-in mechanisms to get access to the incoming mail. Operates faster and is easier to use due to close integration with the e-mail client. - It can be adjusted through the e-mail client interface. - The training is accomplished with the help of the Specials menu items in "The Bat!" - Mark As Junk, Mark As Not Junk. - The plugin is protected from “over-training”, as it is trying to classify e-mails before analyzing them as samples.

AGAVA AntispamServant   
http://www.agava.com

AGAVA AntispamServant is a trainable filter featuring message content analysis. AntispamServant is characterised by high-speed and efficient operation with all e-mail clients, and does not require them to be specially adjusted. AntispamServant is analysing the spam and non-spam message samples you provide, developing sorting algorithms on the basis of the user’s criteria and constantly updating the whitelist, which ensures almost 100% efficiency in identifying unwanted mail. AntispamServant does not delete e-mails identified as spam messages but moves them to a separate folder. You can check the contents of the folder any time later instead of checking new received messages every minute. The spam filter is devoid of the problems common for the majority of baesian filters. AntispamServant: - applies a complex formula to deduce the summarized spam coefficient of the e-mail messages, thus preventing the problem of short-cut calculation; - accounts for the human error factor in the course of the training process and provides opportunities for subsequent correction; - is protected from over-training, as it is trying to classify e-mails before analysing them as samples; - uses an HTML parser to prevent the influence of common HTML tags on e-mail classifications; - identifies functional parts of speech and excludes them from calculation, so as not to degrade the quality of filtering; - can successfully classify e-mails even on the basis of short headers containing 2-3 words only. Other advantages of the program are that there are no restrictions on the number of mailboxes being filtered and that you can simultaneously use any other spam filters. AntispamServant supports POP3, IMAP and SMTP. This antispam program automatically identifies and supports SSL-connections.