Free anti spam filtering software for windows

Anti-Spam Bastion 1 is a useful tool designed with the ability to automatically remove spam from any number of POP3 email accounts. It has a very intuitive configuration to clear your mailbox from different kinds of advertising e-mails. Use Anti-Spam Bastion to protect your mailbox against spam.

Anti-Spam Bastion supports a blacklist (all e-mails from these senders will be removed), whitelist (e-mails from these senders will be received always, without filtering), advanced keyword filters (500 pre-configured keywords and possibility to add any new), flexible automatic scan configuration, backup of removed mail to secure your correspondence against accidental losses and in general has low RAM memory consumption.

Generic drugs. Replica watches. Low-interest loans. Porn. Nigerian bank fraud. Paypal and eBay account updates that demand your passwords. Research indicates that 90 percent of all email is spam.
Dont just accept this as an unfortunate fact of life. Spam is dangerous. Spam wastes your time. Spam invades your life and your privacy. Spam infects your computer with Spyware and Trojans that steal your identity.
Unleash the power of trainable, heuristics-based anti-spam tools of Agnitum Spam Terrier that plug into Outlook Express and Microsoft Outlook.
Extensive Mail Control
Personalized filter training
Spam Terrier?s Bayesian filter, the core of the program, can be trained to recognize new spam when it arrives. Because spam is different for different people, you get to define what should be considered spam by telling Spam Terrier what, from your past email, you consider to be spam. The filter then learns certain behavior/appearance patterns and applies these characteristics to spam filtering of future messages.
The Bayesian filter is based on probability algorithms that assess the odds of new messages having the same characteristics as past emails designated as spam. The more thoroughly you train Spam Terrier, the more accurate and tailored to your requirements the results will be.
Adjustable sensitivity thresholds
Each incoming message is assigned a ?spam score? by Spam Terrier, which classifies the message as not spam/probable spam/definite spam. You can change the way these calculations are made by modifying the values the scores fall into to suit your level of tolerance.
Definable whitelists and blacklists
Spam Terrier doesn?t limit its filters to the use of senders? white- or blacklists (respectively, the list of allowed/blocked senders) when it processes emails. Users can also create special filters based on a number of variables: for example, message body text, header content, or email subject. Email addresses in users? address books are automatically added to the list of legitimate senders.
No lost messages
Suspected spam messages are put into a special folder that you can check at your convenience and restore any misclassified messages. You can also expand the Spam Terrier Bayesian database by clicking ?mark as not spam? on any valid message in the Spam folder.
View message status
By clicking on any message in any folder, users can see how likely that message will be flagged as spam by reviewing its cumulative spam score. Users also thus get valuable insight into how the ranking works in practice.
Continuity of Protection
Automated spam check
Spam Terrier?s real-time self-learning algorithm ensures every incoming message is automatically analyzed against the program?s indicators to determine the legitimacy of the message. Suspicious emails are then quarantined for later review.
As Spam Terrier constantly scans new mail in search of fresh spam samples on which to base its junk mail database updates, the accuracy rate increases over time and minimizes the number of false positives while maximizing the spam identification rate.
On-demand scan
Spam Terrier can check existing email folders for the presence of spam. This on-demand spam scan removes junk emails in advance from any specified folders, and ensures that mailboxes start out as clean as possible.
Ease of use:
Intuitive installation
The process of installation is so easy that even a beginner will have no problem getting started with Spam Terrier.
Seamless integration with email clients
Spam Terrier is integrated directly into Outlook and Outlook Express, adding a small toolbar to the menu bar. Controls are intuitive and no special knowledge is required.
Support for multiple email accounts
Spam Terrier supports multiple email accounts when it checks spam. It maintains two separate databases for Outlook and Outlook Express Bayesian algorithms.
Multiple-language interface
Spam Terrier is available in English, German, Spanish, French, and Russian.
Main features:
- Save time and inbox space by having Agnitum Spam Terrier automatically filter out unwanted correspondence.
- Defend against malicious and fraudulent messages.
- Never miss a valid message from a friend by having Spam Terrier define white and black lists, along with your personalized settings.
- Enjoy the highest accuracy of message processing by training Bayesian filter and adjusting sensitivity thresholds.
- Never get lost. Spam Terrier delivers a user interface that is easily manageable, with convenient, intuitive controls attached to the main client application.

Guarding against annoying spam and dangerous phishing attacks, SpamBully is your premium defense against unwanted email intrusion. Utilizing modern technology and detection methods, SpamBully boasts one of the highest detection rates of spam and phishing attacks in the industry. Unlike traditional and outdated spam filters, SpamBully is equipped to detect even the most sophisticated and evasive threats, including those composed in text, html, and graphics.

Blue Frog is the client software of Blue Securitys Do Not Intrude Registry anti-spam service. Blue Frog empowers you to actively fight spam with the members of the Blue Community in a safe and automated manner.
Blue Security will analyze spam reported by Blue Community members and reports sites advertised by spam to the ISPs hosting them, to government agencies and to other anti-spam groups.
Additionally, Blue Frog clients installed on the machines of Blue Community members automatically post complaints at Web sites advertised by the spam they receive -- the total number of complaints equals the number of spam messages received.
To avoid receiving further complaints, spammers should download a set of tools that clean their mailing lists from addresses of community members and stop sending them spam.
Blue Frog runs in the background without requiring your intervention and without disturbing you or your work. Blue Frog is a visible source project ensuring it is safe to use.
You may register the e-mail addresses where you wish to stop receiving spam in the Do Not Intrude Registry. You may also register your entire e-mail domain.
Download Blue Frog and join the members of the Blue Community in their fight against spam. Over 400,000 email addresses protected.