POPcon PRO   
http://www.christensen-software.de

POPcon PRO connects MS Exchange Server(tm) to POP3 and IMAP mailboxes. It acts as an e-mail collector that retrieves messages from POP3 mailboxes and delivers them to your Microsoft Exchange Server mailboxes according to the intended user found in the mails. POPcon offers the following features: * Poll private POP3 and IMAP mailboxes and forward mail to a single MS Exchange(TM) mailbox or distribute mail from multi-drop POP3 mailboxes to multiple MS Exchange(TM) users according to address the mail was sent to. * Scans incomming Emails for SPAM against public internet spam blacklists and reroutes or deletes spam emails. * Scans incomming emails with built-in antivirus engine and reroutes or deletes infected emails. * Installs as a service - no need for a user to log in. * Can be installed on same machine as MS Exchange Server(TM) - uses only one internet connection and one POP3 mailbox to receive mail for the whole workgroup or company. * Polls multiple POP3 and IMAP mailboxes and distributes mail to your MS Exchange(TM) mail server. * Flexible scheduling for mail retrieval based on day of week. * Monitor POPcons actions from any system in your network using "POPcon Control" included with the software.

Cactus Spam Filter   
http://www.codeode.com

Cactus Spam Filter is a free easy-to-use spam blocker. It protects your inbox by learning to detect spam as it's being used. After a short while it has adapted to your personal mailbox and blocks out most of the junk e-mail. Since the filter becomes personal, spammers will not be able to fool it. Installation is very simple. No setup is required in your e-mail client; this spam stopper integrates seamlessly with all e-mail clients that use POP3. It has been successfully tested with Microsoft Outlook, Microsoft Outlook Express, Netscape, Opera, Mozilla, Mozilla Thunderbird, Eudora, Pegasus Mail, IncrediMail, Foxmail, POP Peeper, Command Line POP Client and Phoenix Mail. This anti-spam program learns to detect spam as it's being used, and believe me, Cactus Spam Filter is a fast learner. After a few e-mails it will start to make its own decisions to relieve you from the spam burden. Even though this is a brutal, merciless spam killer, no e-mails will get lost unless you delete them. One of the unique features of Cactus Spam Filter is the ease of use. After you have downloaded and installed it no more settings are required! No account setup, no POP proxies, nothing! Just start your favorite e-mail program and Cactus Spam Filter will instantly protect it!

POP3 Sweeper   
http://www.devicode.com

POP3 Sweeper is an email removal program that allows you to delete email messages directly from your email server, before it is dowloaded into your computer. It can save substantial amount of time, specially if you are using a dial-up account. POP3 Sweeper is simple to use, yet powerful enough for most users. It allows you to selectively delete email whether they are unsolicited emails, large emails or unwanted emails from your mailbox. Your email program will download the filtered e-mails. In addition, you can also create powerful rules to automate the deletion of spam mails from your mailbox. POP3 Sweeper allows you to set up a variety of spam filtering rules based on the sender, recipient, subject, message body, size and date. Features : - Check unlimited number of email accounts. - Add rules to automatically remove emails. Anti-spam capabilities. - Safely preview and delete email directly from your email server. - Delete e-mail based on the contents of the Sender (FROM), Recipient (TO), Subject, CC, Body and Date fields. - Create advanced rules based on regular expressions. - Spam filter, anti spam, junk mail, email filter tool, pop3 mailbox cleaner.

Spam Alarm for POP3   
http://www.dignitysoftware.com

Spam Alarm is a highly configurable and extremely efficient e-mail scanning software solution which can be tailored specifically to your system to remove the unsolicited e-mail. Spam Alarm utilizes our innovative multilevel filtering, statistical analysis of individual words and heuristic scanning. Key Features: Blocks 99% of spam with zero false positives Standalone application - your email client remains intact Multiple e-mail account processing Attractive user interface with the skin engine No special configuration is required Black & White lists are available for precise settings No user interaction - works quietly in your system tray Mail alerts w/sound Automatic filter updates - spam filters will never "expire" Activity logging

SpamDummy!   
http://www.dummysoftware.com

SpamDummy! is a powerful and easy to use spam blocker for all POP3 email clients including Microsoft Outlook, Microsoft Outlook Express, and more. SpamDummy! blocks spam, email viruses, and harmful content directly at the email server so that you never have to waste time downloading them. SpamDummy! is compatible with Windows 95/98/ME/NT/2000/XP, Microsoft Outlook/Outlook Express, and all other POP3 email clients. SpamDummy! contains the following unique features to protect your email: SpamDummy! is very easy to install. Outlook and Outlook Express requires no setup on your part - configuration is done automatically. Emails sent to you are checked against several DNS blacklist databases. These databases contains thousands of spam IP addresses and are updated daily. Emails sent to you are checked for viruses and harmful attachments. All harmful email is deleted at the server and never reaches your PC. Emails sent to you are checked against a list of custom Block Rules you create yourself. These rules allow you to block email containing certain words in the body, subject, etc. SpamDummy! also has the option to convert all HTML emails to plain text. This protects you from spammers and viruses which might embed harmful HTML commands or tracking codes within email.