Flow Ruler for Outlook 1.0
Flow Ruler allows you to automatically organize your inbox, eliminate spam, administrate contacts and appointments, and assign tasks through simple Rules which are graphically designed. Flow Ruler for Outlook is an Add In for MS Outlook® that expands the possibility of configuring and executing rules in your Inbox and in the other folders as well.

Extensible Messaging Platform Anti-Spam Filter 5.5
Server based Anti-Spam Filter protects organizational mail servers (Exchange Server, Novell GroupWise, Lotus Domino, Sendmail, etc) from spam, email-borne viruses (including dangerous auto-launch viruses) and objectionable content using contextual pattern signatures (not simple keywords). The use of contextual signatures results in high success and extremely low false-positive rates.

Elgr anti-spam for Outlook Express 2.42
Elgr sits between the e-mail reader and the internet, checking e-mail as it is received. Spam is automatically moved to the deleted items folder. Elgr uses several powerful methods to trap spam. Elgr is free, effective and very easy to use. Elgr is kept up to date by an automatic update mechanism. Works with Outlook Express.

Mail UnKnown Anti-Spam 1.532
Stop spam with Mail UnKnown. Mail UnKnown does NOT use spam filters to guess what’s spam and what’s not. It uses a Verify then Validate method giving you full control of the emails you receive. All incoming emails are put on hold until the sender of the email is first verified. After they are, you have the option to validate them as an email sender you want to receive emails from.

Out Spam 1.1
Out Spam is a spam filter program. It can remove junk letters from a POP3 mail server without downloading them to a client computer. The principal way to separate mail is the use of worldwide black lists of spam mail servers. The program can also filter letters by languages and letter header errors. It supports the multi accounts usage. Validation rules allow user to prevent deleting important letters by mistake.

Spam Trapper for Outlook 1.3.3
Spam Trapper is a multilevel spam filter for Microsoft Outlook version 2000 and later. It is a plug-in component with clear convenient interface. The first level checks your address book and validates all letters from your clients. So letters from your friends and colleagues are never processed as spam. The last level is a Bayes Filter. Any level can be switched off. Spam Trapper does not work with Outlook Express.

Ad Nuker Popup Blocker & Spam Filter 4.5.0.0
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.

BusinessMail Email Server + Anti Spam System 4.70.00
BusinessMail 4 is a powerful multi threaded Intranet/Internet email server and a powerful anti-spam systems with windows Service option, designed specifically for the business environment. It can be installed on any W95/W98//ME/W2K/XP or NT4 PC. BusinessMail 4 offers single/multiple email domain support, can be run as a windows Service, fully user configurable scoring anti-spam system, user & domain aliasing, powerful routing/filtering, flexible connection scheduling and much more.

Spam Reader 2.5
Spam Reader is an MS Outlook plugin that extends Outlook functionality with a Bayesian spam filter. There is no need to run an external program. Spam Reader fully integrates into MS Outlook. Spam Reader analyzes each message when you receive it and puts it in the Spam folder if needed. SpamReader does not break existing Outlook filtering rules. The Bayesian spam filter is self-trainable. You can also tune it up for better accuracy.

SpamAI Anti-Spam Filter Software DR-4.20.0
SpamAI fights spammers with 100% spam rejection. Only email you approve or build rules for is allowed in. You preview unapproved email in a text-only holding tank that immunizes you from all malware. By simple point and click, including a convenient identity verification checkbox, you build rules for what you want to receive automatically.