Tech-Pro POP3 Pal   
http://www.tech-pro.net

POP3 Pal is a mail client for people on the move. It provides an easy way to access your POP3 mail from any Windows-based PC. It can also be used for mailbox maintenance - for example, to delete an unwanted large message that is blocking access to your other email. POP3 Pal lets you read and reply to mail directly from your POP3 server. It supports unlimited accounts or profiles, so you can check your mail on any number of POP3 mailboxes. A "Check All" option lets you see at a glance which of your accounts have waiting messages. The optional spam check shows you messages that are likely to be spam. You can delete all the messages marked as spam with a couple of mouse clicks. POP3 Pal Message Composer lets you reply to messages and send new mail using an available SMTP relay host. Copies can be sent to your POP3 server so that you retain the complete "thread" of correspondence when you download the messages into your usual mail client back home.. POP3 Pal has many special features that are rare or unique in this class of software: supports HTML formatting (for received and sent mail); supports attachments, including inline images; spam checking option; integrated address book; supports POP3 APOP and SMTP authentication; all settings stored on a portable .INI file; small enough to fit on a floppy. You can try POP3 Pal free of charge. In evaluation mode its use is restricted to a single POP3 account (profile) and every message you create carries a small advertisement. Registration provides unlimited accounts and removes the advertisement.

Internet Drummer!   
http://www.xemico.com

This program works in the system tray and serves for checking unlimited number of POP3 e-mail accounts. It can execute various types of notifiers whenever there is new e-mail waiting in your mailbox. Each e-mail account can have its own checking interval. You can preview messages while they are still on server and decide which messages to keep and which should be removed immediately. You can set a list of spam filtering conditions and program will automatically remove such messages. You can also set a list of friendly e-mail notifying conditions and get extra notification when such messages arrive. Program also allows you to maintain a list of web pages it should periodically visit and check for changes. Whenever it detects a change on a web page you will be notified by selected notifier and/or automatic web browser launch.

Spam Hound   
http://www.Apocgraphy.com

Spam Hound is a program that works with your current email reader analyzing your email and protecting you against a full range of damaging and time wasting emails. Spam Hound uses Neural Networks to automatically learn and adapt. The more spam you get the smarter Spam Hound gets! Spam Hound uses a full range of methods to analyze your email including Bayesian filtering, keyword analysis, collaborative information sharing, adaptive algorithms, heuristics, blackholes, automatic whitelisting and blacklists. Spam Hound comes preset defaults suitable for most users. Zero configuration is required. Just install and forget about it. Key features are: - Spam protection. - Virus protection. - Hoax protection. - Privacy protection. - Works with all POP3 email programs. - Neural networks automatically learn to recognize spam. - Easy configuration. - Extensive automatic whitelisting. - Mailing list (listserv) aware. - Fully configurable. - Unlimited accounts. - Send and receive through Hotmail and msn. - Cooperative spam detection via the Spam Hound Database and the Distributed Checksum Database - Information on over 6000 different attachment types. - Heuristic spam detection using an extensive list of proven rules. - Block senders with the click of the mouse. - Keyword blocking.

SPAMfighter SMTP Anti Spam Server   
http://www.spamfighter.com

SPAMfighter SMTP Anti Spam Server, is the easy-to-use anti-spam solution for Microsoft Windows Servers. SPAMfighter SMTP Anti Spam Server is powered by the SPAMfighter Server, which is updated by the SPAMfighter community of more than 1.2 million users across the globe. SPAMfighter SMTP Anti Spam Server delivers instant spam protection with no configuration or maintenance what so ever. As email arrives and the SMTP Server routes it to its addressees, SPAMfighter constructs a unique signature for each message and sends it to the SPAMfighter Server for evaluation. If the SPAMfighter Server determines that a message is spam, it filters the mail before it is moved to the user's spam folder.

POP3 Cleaner PRO   
http://www.acmetoolz.com

A powerful manual/automatic mailbox cleaning utility with anti-spam capabilities for Windows. You can preview and delete unwanted e-mail messages directly from the mail server and retrieve the rest with your e-mail client (e.g. MS Outlook). Every message is shown with its sender's address, subject, size and the date it was received. POP3 Cleaner PRO can also run fully automated on the system tray and act as a powerful anti-spam filter. It can connect to the mail server in desired time intervals, check for the new mail (notify you on new mail arrival), apply the anti-spam rules and delete the unwanted messages directly from the mail server. You do not need to change any settings on your computers. The installation and setup is very easy. Lifetime update for free.