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.
- http://www.sec.gov/news/press/2007/2007-34.htm

Email-Armor
- Offers commercial challenge/authentication method.
- http://www.email-armor.com

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.
- http://en.wikipedia.org/wiki/CAPTCHA

Spam.org
- Information about fighting and reducing spam. Links to major related sites and news.
- http://www.spam.org/

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.
- http://thescambaiter.com/antispam/

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.
- http://www.altruists.org/static/page.asp?id=168

Anti-Spam | Stop Spam Bots
- Converts HTML code to hide email address from spam bots.
- http://www.safeemail.org/

Agent Spam
- Commercial spam / virus filtering services for corporations and ISP's.
- http://www.agentspam.com

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.
- http://www.messagelevel.com

OptOutByDomain.com
- Universal opt-out by domain list; created as a "convenient opt-out" measure per the CAN-SPAM act.
- http://www.optoutbydomain.com/

Avoid Spam
- Spam related news, articles, reviews, downloads and forums.
- http://www.avoidspam.co.uk

UIID: Universal Internet IDentification
- Offers an ID number to replace email signature which can be used to avoid disclosing email addresses in case of harvesting.
- http://uiid.org/

MailVeil spam prevention
- Offers a service to munge email addresses using flash to prevent harvesting.
- http://www.mailveil.com/

PHP Spam Poison (phpwpoison)
- An automated page generator that create long lists of fake email addresses to poison the spammer's database.
- http://www.mariovaldez.net/software/phpwpoison/

Email Redirection Technique
- Step by step explanation of the email redirection technique to prevent spam from reaching to the end user.
- http://www.aydef.com/how_to_stop_spam.htm

Some Simple and Practical Means to Help Avoid Spam
- Offers a few simple suggestions.
- http://w2.syronex.com/jmr/spam.html

Email Address Encoder
- Offers simple and user challenge JavaScript based email encoder to prevent email harvesting.
- http://w2.syronex.com/jmr/safemailto/

BlackSpider Technologies
- Provides spam filtering and virus protection for corporate customers.
- http://www.blackspider.com

Stop Spam Email
- Offers advice under the categories of ISP filtering, services, software, sundries, hints and tips.
- http://homepage.ntlworld.com/nick.daws/

Email address encoder
- Transforms ascii email addresses into their equivalent decimal entity through the use of Character Entities.
- http://www.wbwip.com/wbw/emailencoder.html

How to Stop Messenger Spam
- Explains how to stop web pop-up spam advertising in Windows Messenger.
- http://www.re-quest.net/computers/messenger-spam/index.htm

Email Protector
- Hides email addresses from the spambots by using encryption and Javascript.
- http://www.jracademy.com/~jtucek/email/index.html

Tim Williams: Anti-SpamBot Countermeasures
- Ciphers email addresses to foil spambots.
- http://www.u.arizona.edu/~trw/spam/

Outlook Express Tutorial
- Step by step explanation with screenshots of how to set filters.
- http://www.webterrace.com/outlook/filter.htm

How Do Spammers Get Email Addresses?
- Twelve ways spammers obtain email address. Includes links to websites explaining how to trace spammers down.
- http://www.newcreations.net/webmaster/spam.html

Paul Graham: Antispam
- An intensive study essentially discussing spam-filtering techniques.
- http://www.paulgraham.com/antispam.html

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]
- http://www.arxiv.org/abs/cond-mat/0402143

Obsfuscate Email Addresses
- Ciphers email addresses to foil spambots.
- http://www.alicorna.com/obfuscator.html

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.
- http://www.messagedefense.com

Spam. Don't Buy It.
- Effort to educate consumers. Includes press releases and participation information.
- http://www.spamdontbuyit.org/

No Spam Email
- Private email address with your own domain and unlimited aliases prevents spammers from obtaining real email address.
- http://www.venuemail.us/

unspam
- A consulting company for businesses and governments promoting do-not-email registries. Includes spam news and articles.
- http://www.unspam.com/

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.
- http://www.neilgunton.com/spambot_trap/

SpamMotel
- Offering anti-spam program and disposable email addresses.
- http://www.spammotel.com/

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.
- http://jamesthornton.com/software/graphic@.html

Spam-Proof Your Web Page
- Free service to encode the email addresses in your website so that they cannot be gathered by email robots.
- http://www.seafield-technologies.com/spam-proof/

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.
- http://jamesthornton.com/software/redirect-mailto.html

The Spammeister Guide to Spam
- FAQ on spam including ways to reduce the flow of junk email or become spam free.
- http://mywebpages.comcast.net/spammeister/

DMA: EMail Preference Service
- Maintains a list of opt-out addresses.
- http://www.dmaconsumers.org/emps.html

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.
- http://www.turnstep.com/Spambot/

Emailias
- A service that allows a person to generate new e-mail aliases to give to websites that want contact information.
- http://www.emailias.com/

BestPrac.Org
- Learn about best practices in spam prevention and eradication.
- http://www.bestprac.org/

How do spammers harvest email addresses?
- Several methods are described.
- http://www.private.org.il/harvest.html

Sugarplum
- Generates fake data to give to e-mail harvesting robots.
- http://www.devin.com/sugarplum/