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Spam Filtering
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Filtering Spam with Spamassassin on Redhat 9
How to filter spam with Spamassassin on Redhat 9. [Unix]
jASEN
A Java program using a Chi Square algorithm to detect spam. It is best suited to developers wishing to integrate anti-spam services into an existing server based java E-mail application, but can be used for client applications. [Java]
Hamster RBL-Check for Windows
Free open-source software for users of the free Windows Hamster local news and mail server, to filter out spam using any of the publicly available Realtime Block Lists (RBL). [Windows]
RBL Spam Daemon
A small, fast, open-source spam filter. Designed to work with or replace SpamAssassin. Uses DNSBL lookups to discriminate spam. [Unix]
SMTPD Spammer Deterrent
Patched version of Obtuse SMTPD that provides content filtering and tar pitting. [Unix]
Spam filters & email security - ePrism secure email filter & spam control filter
ePrism is an email filter and spam filtering appliance that provides organizations with a total secure email perimeter defense solution. [Hardware]
Barracuda Networks Spam Firewall
The Barracuda Spam Firewall handles over 10 million messages a day, without bogging down your email servers. [Hardware]
Spam Sleuth Enterprise
Anti-spam software that filters spam, viruses, web bugs, and phishing scams. Eliminates unwanted junk e-mail from corporate servers. [Windows]
Corvigo, Inc.
Intent based filtering technology. Simply better e-mail. You plug it in, and all that junk email just goes away. [Hardware]
Declude JunkMail
Advanced spam control using many different tests with a variety of possible actions to take on spam. [Windows]
MailStripper
MailStripper is an SMTP-level spam filter with antivirus capability for Linux, FreeBSD and Solaris. [Unix]
ESCOM Corporation
The Active SMTP Appliance is a hardware appliance that dynamically filters and quarantines junk e-mail before it gets to the mail server. [Hardware]
PowerElf II
The PowerElf II anti-spam appliance uses several different techniques to help stop spam at its entry point, before it has a chance to travel to the end-user’s mailbox. [Hardware]
HartSoft Catch
Advanced E-mail proxy incorporating Spamassassin. [Windows]
Hijack Protection from anonymous Dial-in Access
Prevents SMTP hijacking (outgoing spam) of the respective MX SMTP Server from anonymous Dial-In Users. [Unix]
Extensible Messaging Platform - Anti-Spam Firewall
Software intercepts spam, email-borne viruses, and other objectionable content before reaching your organization's mail server by utilizing complex contextual signatures as opposed to simple keyword lists. [Unix, Windows]
SPAMFilter ISP
Anti-spam software that acts as a proxy to existing SMTP servers. Filters E-mail based on DNS blacklists and individual filters such as keywords, IP, From address. [Unix,Windows]
MailShield
MailShield filters e-mail before it gets to the mail server. Customizable. Free trial available. [Unix,Windows]
MailChannels
MailChannels eliminates false positives by using a new technique using subdomains in E-mail addresses. [Windows]
MailFrontier
An internet security company offering solutions to prevent spam, phishing, viruses, policy violations, and denial of service attacks. [Hardware]
Using Exim 4 ACLs
This article explains how to set up ACLs in Exim 4 to reject spam.
JSpamFilter
JSpamFilter is Java-based, performs both source and content filtering, and provides a variety of treatment options. It is high-performance and highly customizable. [Java]
mxGuard
The purpose of this add-on is to intercept each message passing through the IMail server. It then runs a range of tests to determine if the message is unsolicited commercial e-mail (UCE), commonly referred to as junk mail or spam. [Windows]
Pinjo
Spam control using Blacklists, mark spam by modifying subject, anti relay possiblities. [Windows]
White List Email (WLE)
Challenge/response system. Multi-platform filtering free software written on Python. WLE requires a confirmation from unknown senders before delivering their mail in your mailbox. [Unix]
CanIt
CanIt is a flexible server-based anti-spam solution built around SpamAssassin. [Unix]
Mail Warden Pro
Mail Warden Pro is E-mail server security software with anti-spam, anti-virus and content filtering for any mailserver. [Windows]
SMTPTrap.com
Spam killer software. It blocks spam before it is even delivered to your mail server. [Windows]
MailFoundry Antispam Appliance
A very effective anti-spam appliance. MailFoundry creates a spam firewall for effectively stopping spam. [hardware]
Message Sniffer
Accurate, multi-platform spam filter updated several times per day using 60,000+ heuristics. Typically scans messages in under 200 milliseconds on modest hardware. [Unix,Windows]
STAT AntiSpam Software Project
Perl based spam and anti-virus filters. The content of individual messages and their attachments is analyzed across several broad categories. The program works with the Mercury32 email server. [Windows]
Tethernet, Inc.
Tethernet TetherFilter is an easy to deploy, affordable anti-spam and anti-virus appliance that can be used in front of any existing Internet email server. [Hardware]
trimMail Inbox
Appliance filters mail coming into your network for spam and dangerous content. [Hardware]
Debian open source gateway email spam filter
Explains how to build a Debian anti-spam and anti-virus gateway E-mail server using Postfix, amavisd-new, SpamAssassin, Razor, DCC, Pyzor and ClamAV.[Unix]
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