Server based antispam software for Exchange Server and SMTP servers. It features extensive Spam filter features for effective anti spam on your mail servers.GFI MailEssentials also features disclaimers, mail monitoring, mail archiving, mail reporting, POP3 downloading and auto replies.

This website has information about the Federal Trade Commission’s recent law enforcement actions against deceptive commercial email and spammers who don’t honor their "remove me" claims.

A not-for-profit organization whose mission is to defend the Internet's e-mail system from abuse by spammers.

Mail Washer is a simple, easy to use email checker with powerful features to stop spam and eliminate viruses.

SpamKiller block emails using both lists and preset filters. Update internal filters automatically. Create custom filters. Quarantine spam outside of your inbox and monitor and filter multiple email accounts. Fight back against spammers!

Unsolicited spam occurring now on Instant Messenger. Read full article here.

A comprehensive introduction to the behavior of email headers. It is primarily intended to help victims of unsolicited email (email spam) attempting to determine the real source of the (generally forged) email that plagues them; it should also help in attempts to understand any other forged email.

SORBS anti-spam email blocking and filtering system. Tips and tricks for closing open proxy servers, along with useful tips for configuring smtp mail servers.

Spam laws separated between State and Federal laws and also selected cases.

A broad-based organization to reduce the amount of unsolicited email, or spam, on the Internet.

Information about spyware and how to guard your privacy. Dump Internet Explorer, but if you have to use MSIE follow these guidelines.

Internet ScamBusters is an award winning free electronic newsletter (e-zine) to help people protect themselves from Internet scams, misinformation and hype that are costing entrepreneurs a fortune.

The Network Abuse Clearinghouse is intended to help the Internet community to report and control network abuse and abusive users.

ARIN is the regional registry of IP and ASN numbers for North America, South America, the Caribbean, and sub-Saharan Africa.

Learn what you need to know to help stop the spread of misinformation and junk e-mail.

Actual email spam questions posted to CAUCE. The Coalition Against Unsolicited Commercial Email answers questions such as how do you define spam and more.

A chain letter is a get rich quick scheme that promises that your mail box will soon be stuffed full of cash if you decide to participate. You're told you can make thousands of dollars every month if you follow the detailed instructions in the letter.

Information about Hoaxes. What are internet Hoaxes and Chain Letters? Tips and information on how to recognize Hoaxes and Chain letters.

This site is designed to provide information about the problems of junk email, some proposed solutions, and to provide resources for the Net Community to make informed choices about the issues surrounding junk e-mail.

Welcome to the world's first absolutely free online Computer Tips site. Please have a look around. We offer various help topics including A to Z Computer Free Tips and Help.

ToastedSpam.com's free base64 decoder. Decode and report all spam to host providers and registrants.

ToastedSpam.com's free quoted-pritable text decoder. Decode and report all spam to host providers and registrants.

Get rid of spam. EarthLink's easiest and most effective way to fight junk mail. Spaminator!

Help Stamp Out Spam! Anti-junk mailfilters, IP blocking, blacklists, other boycott tools to keep the net useful for everyone!

Tips on how to avoid and fight email spam. A few easy steps to minimize exposure to email spam.

Internet Hoaxes and Chain Letters organized by categories. Search for known Hoaxes and Chain Letters. Tips and information on how to recognize Hoaxes and Chain letters.

Need to look up an IP address and locate its identity? Use this site for an index relating IP network numbers to network names and identities, for class A, B and C networks.

Once your email address is on a spammer's list, it can be very hard to get off, especially if he's selling it. Tips on how to stop spam before it starts.

Outblaze wishes to clarify a number of issues concerning unsolicited commercial email messages, also known as Spam or junk mail. Outblaze is strongly opposed to any form of Spam, and provides a number of mechanisms to help prevent Spam.

RIPE (Réseaux IP Européens) is an open collaborative community of organisations and individuals,operating wide area IP networks in Europe and beyond.

GRC Internet Security Detection System. Test your computer network security and internet security with this free utility. The shields up tool will test internet shields and probe internet ports security. Free results details any security breaches.

Fight Spam on the Internet! Great site to learn about spam and how to fight it. Get answers to questions like 'How to Block spam email for an entire site?' or 'How to filter mail to your personal account?'.

Protecting the internet community through technology, not legislation. SpamCop eliminates spam. Automatically file spam reports with the network administrators who can stop spam at the source. Subscribe, and filter your email through powerful statistical analysis before it reaches your inbox.

Abused by e-mail advertising? Here are legitimate and legal ways of doing something about it!

This is the SPAM-L FAQ, a document dealing primarily with how to post to the SPAM-L mailing list, what to post, and what not to post. It also includes technical information on how to track down spammers, decipher message headers, perform traceroutes, etc. If you are a newbie and these terms confuse you, everything is explained here.

Tracking the Elusive Spammer by Gary Shuster from Computer Bits magazine.

A list of e-mail collector robots and their user agent names as used in the HTTP_USER_AGENT variable.

Here's a script to prevent spammers and email harvesters from finding your email address on your website.

Anti-Spam Tip #001: A simple and free trick to protect your web site effectively from spam mail.

Prescan will try and determine more information about a computer. Check your system security with this free tool.