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.

Hixus Email Address Protector   
http://www.hixus.com

Prevent spam robots harvesting your email address from your website and help reduce the amount of spam you receive as a result. Hixus Email Address Protector converts your email address so it can be read by people visiting your website, but is not easily found by automated spam robots. If a visitor clicks an email link on your website, it will work as normal, but spam robots will not be able to extract the address from the link. No coding is required. Sophisticated wizards prepare your protected email address links for you.

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.

Apocgraphy - Full spectrum e-mail protection   
http://www.Apocgraphy.com

Apocgraphy is a program that works with your current e-mail reader analyzing your e-mail and protecting you against a full range of damaging and time wasting e-mails. Apocgraphy utilizes a full range of methods to analyze your e-mail including keyword analysis, collaborative information sharing, adaptive algorithms, heuristics, blackholes, automatic whitelisting and blacklists. Apocgraphy 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 e-mail programs. - Easy configuration. - Extensive automatic whitelisting. - Mailing list (listserv) aware. - Fully configurable. - Unlimited accounts. - Send and receive through Hotmail. - Cooperative spam detection via the Apocgraphy 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.