See also:

• Computers: Internet: E-mail: Spam: Filtering  (68)
• Computers: Software: Shareware: Windows: Internet: Email: Spam Filtering  (17)

• Address Munging FAQ - How to spam-block ("munge") your email address.
• Agent Spam - Commercial spam / virus filtering services for corporations and ISP's.
• Anti-Spam | Stop Spam Bots - Converts HTML code to hide email address from spam bots.
• Anti-Spam tips and Resources for Webmasters - Tips to publish email addresses on the web more safely. Includes a text-to-image converter and javascript encoders.
• Avoid Spam - Spam related news, articles, reviews, downloads and forums.
• BestPrac.Org - Learn about best practices in spam prevention and eradication.
• BlackSpider Technologies - Provides spam filtering and virus protection for corporate customers.
• DMA: EMail Preference Service - Maintains a list of opt-out addresses.
• Email Address Encoder - Offers simple and user challenge JavaScript based email encoder to prevent email harvesting.
• Email address encoder - Transforms ascii email addresses into their equivalent decimal entity through the use of Character Entities.
• Email Redirection Technique - Step by step explanation of the email redirection technique to prevent spam from reaching to the end user.
• Emailias - A service that allows a person to generate new e-mail aliases to give to websites that want contact information.
• Graphic @ for Spam Prevention - Prevent e-mail siphons from harvesting your e-mail address by not using the commercial "@" character when displaying your e-mail address on a Web page; use a graphical "@" instead. Examples in Perl, OpenACS, PHP, and ColdFusion.
• How Do Spammers Get Email Addresses? - Twelve ways spammers obtain email address. Includes links to websites explaining how to trace spammers down.
• How do spammers harvest email addresses? - Several methods are described.
• How to Block E-mail Relaying - What to do when your computer is used to relay spam.
• How to Stop Messenger Spam - Explains how to stop web pop-up spam advertising in Windows Messenger.
• MailVeil spam prevention - Offers a service to munge email addresses using flash to prevent harvesting.
• MessageDefense, LLC - Offers services to businesses by acting as an agent between senders and recipients to prevent spam and other insecure email. Includes links to news on spam.
• MessageLevel - The company that invented true Message Level Authentication for e-Mail. Provides an overview of the concept, product descriptions, how to get it for your organization and how to become a partner.
• No Spam Email - Private email address with your own domain and unlimited aliases prevents spammers from obtaining real email address.
• Obsfuscate Email Addresses - Ciphers email addresses to foil spambots.
• OptOutByDomain.com - Universal opt-out by domain list; created as a "convenient opt-out" measure per the CAN-SPAM act.
• Outlook Express Tutorial - Step by step explanation with screenshots of how to set filters.
• Paul Graham: Antispam - An intensive study essentially discussing spam-filtering techniques.
• Personal Email Networks: An Effective Anti-Spam Tool - An automated graph theoretic method for identifying individual users' trusted networks of friends in cyberspace. [PDF/PostScript]
• PHP Spam Poison (phpwpoison) - An automated page generator that create long lists of fake email addresses to poison the spammer's database.
• Redirect Mailto: For Spam Prevention - Prevent e-mail siphons from harvesting your e-mail addresses by separating the address from the Web page while still providing a way for users to click a link and have it open their local mailer. Examples in Perl, OpenACS, PHP, and ColdFusion.
• Some Simple and Practical Means to Help Avoid Spam - Offers a few simple suggestions.
• Spam Vampire - Aims to educate how spammers pay for bandwidth and how spam victims can fight back by endlessly loading their graphics to cost spammers money. Includes examples and customizable pages a victim can tailor to target specific spammers.
• Spambot Beware - How to avoid, detect and harass spambots. Spambots are programs that extract email addresses from web pages, which are then used as targets for spam.
• The Spammeister Guide to Spam - FAQ on spam including ways to reduce the flow of junk email or become spam free.
• SpamMotel - Offering anti-spam program and disposable email addresses.
• Spam.org - Information about fighting and reducing spam. Links to major related sites and news.
• Spam-Proof Your Web Page - Free service to encode the email addresses in your website so that they cannot be gathered by email robots.
• Stop Spam Email - Offers advice under the categories of ISP filtering, services, software, sundries, hints and tips.
• Stopping Spambots: A Spambot Trap - Neil Gunton describes his experiences with software programs browsing websites looking for email addresses, and the techniques he developed to stop them.
• Sugarplum - Generates fake data to give to e-mail harvesting robots.
• Tim Williams: Anti-SpamBot Countermeasures - Ciphers email addresses to foil spambots.
• unspam - A consulting company for businesses and governments promoting do-not-email registries. Includes spam news and articles.
• Wikipedia - CAPTCHA - Explains how captcha features can keep spammers from signing up for certain accounts online, such as email or weblogs. Explains how the system can be circumvented as well.

• SEC Suspends Trading of 35 Companies Touted in Spam Email Campaigns - Press release from the US Securities and Exchange Commission, explaining their recent actions to help curb stock tout spam. (March 8, 2007)
• Why Am I Getting All This Spam? - Report from the Center for Democracy and Technology analysing how email addresses posted on websites and in newsgroups attract spam, and how effective different obfuscation techniques are. (March, 2003)