Blue Frog Anti Spam   
http://www.bluesecurity.com

Blue Frog actively fights spam and makes spammers leave you alone. Blue Frog automatically posts complaints on the sites advertised by the spam you receive. Report your spam from any desktop email client or let Blue Frog automatically report your Gmail, Hotmail and Yahoo spam directly from the Firefox or Internet Explorer browser. Make spammers leave you alone. Filtering spam is not enough. Blue Frog protects your email accounts or your entire mail domain by making spammers remove your from their mailing lists. Be active. Fight back! Dowload Blue Frog and join the members of the Blue Community in their fight against spam. Over 420,000 email addresses protected.

MDaemon   
http://www.altn.com

MDaemon , Windows-based email server software, contains full mail server functionality and control with a strong emphasis on security to protect your email communication needs. MDaemon features include top-notch antispam security features; seamless integration with AntiVirus for MDaemon plug-in; built-in groupware functionalities for sharing folders, tasks, contacts, and address; separately licensed plug-in for Outlook users to access groupware functionalities using MDaemon as the mail server and groupware platform; secure instant messaging; free web-based email client; remote administration tool; central address book repository; and much more! MDaemon 8.1 new feature includes the first implementation of DomainKeys Identified Mail (DKIM) for the Microsoft Windows platform. DKIM validates the sender address and message integrity of each email received. MDaemon creates outbound signatures and validates inbound messages signed with DKIM. Read Alt-N's published white paper on DKIM and its implementation in MDaemon at http://www.altn.com/support/white_papers.asp. In addition to DKIM, MDaemon 8.1 includes support for Greylisting, a relatively new spam fighting technique which involves deferring the initial acceptance of a new mail message from unknown senders and tells the sending email server to try again later. When the sending server tries a second time - which most spam sources will not do - MDaemon will accept it. Exception options and white lists can exempt trusted senders from greylist processing. MDaemon 8.1 builds on the groupware, security and administrative improvements made available with MDaemon 8.0. MDaemon now includes free groupware functions, including shared calendars, contacts and task lists. It also continues to lead the industry in email security, professional fine-tuning and beginner ease of use.

TZ Anti Spam Filter   
http://www.trackzapper.com

Eliminate Junk E-Mail Spam, Spyware, Viruses & Tojans. Works with POP3, IMAP, HTTP servers like Yahoo! & Hotmial. This Anti Spam Filter - powerful e-mail checker programs with effective spam elimination. Discover the safe way to stop unwanted viruses & spam e-mails before they get to your PC. Can be used as an effective privacy tool. This is the easiest, most effective way to manage your incoming e-mails like a pro in seconds. TZ Anti Spam Filter & Killer is the best solution to fight the spam mails in your e-mail accounts. Filters the messages using a multiple criteria like spam words, friend list, blocked list, & state of the art algorithm rules. Your account passwords are encrypted by a powerful encryption technique, so its too difficult for any one to hack your passwords. All messages text whatever deleted or resident in the mailbox are saved in your hard drive and appears in the main window list, the reason for deletion or existence and other checking information are also stated.

1Click Spam Shield   
http://www.securepcsolutions.com

1 Click Spam Shield is the solution for eliminating one of the biggest threats of the mailing systems: spam. With this utility, you are receiving all your email safely and securely, all filtering being done in a transparent way, resulting in a clean Inbox with just solicited mail and no more junk. The powerful spam filter is compatible with almost all POP email clients, integrates automatically into Outlook and Outlook Express and removes spam and junk mail in the easiest and most professional way possible. Being fully customizable, you can always decide what is and what is not spam, possessing the power to create custom rule sets and settings. The filtering engine provides 90% accuracy in eliminating spam and contains a comprehensive prebuilt list of known spammer addresses, domains and key phrases together with powerful spam detection algorithms. With Automatic List Management option it allows you to focus on your email and not on unsolicited spam, managing your approved sender lists, automatically learning from your incoming legitimate messages. 1 Click Spam Shields Intelligent Protection Agent automatically removes all tracking and privacy bugs, allowing you to handle your email with confidence that you are not being spied or insecure.

Zaep AntiSpam   
http://www.RhinoSoft.com

Zaep AntiSpam eliminates 100% of the spam you receive without the added hassle of other anti-spam solutions. It doesn't require training to recognize a spam message. It doesn't require that you review its results for any mistakes. It eliminates spam and lets you enjoy receiving new email rather than dreading it. Using a simple challenge-response based system, Zaep AntiSpam verifies the sender's email address before you get the message. This simple procedure is only done once and takes only a few seconds to perform so it doesn't create an inconvenience. Use Zaep Standard to protect each of the email addresses you use at home from receiving hundreds of advertisements for useless products. Or you can deploy Zaep Professional on your corporate network to have it protect every single email account within your business. Increase productivity and start enjoying your email by never looking at another spam message again. Zaep AntiSpam makes it happen.