[Discover] SURBL -- Spam URI Realtime Blocklists http://www.surbl.org/
(email spam blacklist antispam) 
[Discover] PHP Captcha Security http://www.white-hat-web-design.co.uk/articles/php-captcha.php (php captcha code programming)
[Discover] A Plan for Spam http://www.paulgraham.com/spam.html (bayesian spam programming filtering)
[Discover] Lutz Donnerhacke: Teergrubing FAQ http://www.iks-jena.de/mitarb/lutz/usenet/teergrube.en.html (teergrube smtp email spam)
[Discover] Stop spam with the Anti-Spam-SMTP-Proxy (ASSP) http://assp.sourceforge.net/ (email smtp antispam spam)
[Discover] Better Bayesian Filtering http://www.paulgraham.com/better.html (spam algorithms research email)
[Discover] The Spamhaus Project http://www.spamhaus.org/ (spam antispam email resources)
[Discover] Spam Links - dns & rhs blackhole lists http://spamlinks.net/filter-dnsbl-lists.htm (dns security dnsbl spam)
[Discover] Distributed Spam Harvester Tracking Network | Project Honey Pot http://www.projecthoneypot.org/index.php (email spam honeypot tools)
[Discover] SPF: A Sender Policy Framework to Prevent Email Forgery http://www.openspf.org/ (email security spam dns)
[Discover] Oregon State University - Network Engineering http://oregonstate.edu/net/spam/ (antispam spam rbl)
[Discover] http://www.ibiblio.org/pub/Linux/docs/HOWTO/Spam-Filtering-for-MX http://www.ibiblio.org/pub/Linux/docs/HOWTO/Spam-Filtering-for-MX (antispam spam rbl)
[Discover] Spam DNS Lists - Computer Tyme Support Wiki http://wiki.ctyme.com/index.php/Spam_DNS_Lists (antispam spam rbl isp)
[Discover] FrontPage - Spamikaze Wiki http://spamikaze.org/ (spam email gpl opensource)
[Discover] Habeas: SafeList http://www.habeas.com/en-US/Receivers/safelist/ (antispam spam rbl)
[Discover] sectoor - Server, Domains, Housing und Hosting - security, leading to success http://www.sectoor.de/tor.php (antispam spam tor infosec)
[Discover] Comparison of DNS blacklists - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Comparison_of_DNS_blacklists (spam email antispam rbl)
[Discover] MS Exchange 2003 SP2 bug related to greylisting http://www.greylisting.org/forums/showthread.php?tid=18 (antispam spam greylisting exchange)
[Discover] policyd-weight - A policy daemon for Postfix http://www.policyd-weight.org/ (antispam email spam linux)

[Discover] Gmail: Google's approach to email http://www.google.com/mail/help/fightspam/spamexplained.html (google spam email gmail)
[Discover] Greylisting Trips Up Exchange 2003 http://www.windowsitpro.com/Windows/Article/ArticleID/95331/95331.html (antispam spam greylisting exchange)
[Discover] Catalog Choice - Eliminate unwanted catalog you receive in the mail http://www.catalogchoice.org/ (shopping environment green catalog)
[Discover] RFC-Ignorant.org Home http://www.rfc-ignorant.org/ (rfc blacklist standards email)
[Discover] DNS Stuff: DNS tools, DNS hosting tests, WHOIS, traceroute, ping, and other network and domain ... http://www.dnsstuff.com/ (dns tools whois network)
[Discover] Fighting Spam http://www.clari.net.au/Customers/FightingSpam/ (antispam email tutorial tools)
[Discover] Spam Links - the anti-spam portal http://spamlinks.net/ (antispam email directory smtp)
[Discover] SMTP Transaction Delays http://tldp.org/HOWTO/Spam-Filtering-for-MX/smtpdelays.html (antispam email server serverside)
[Discover] Greylisting: Whitepaper http://projects.puremagic.com/greylisting/whitepaper.html (email spam greylisting security)
[Discover] Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1 http://www.openspf.org/svn/project/specs/rfc4408.html (antispam email server spam)
[Discover] FGA: SPF is harmful. Adopt it. http://homepages.tesco.net/J.deBoynePollard/FGA/smtp-spf-is-harmful.html#HijackTXTResourceRecordType (antispam fga spf)
[Discover] Honeypot.net | It's the least we could do http://honeypot.net/ (antispam honeypot security sysadmin)
[Discover] How To Implement SPF In Postfix | HowtoForge - Linux Howtos and Tutorials http://www.howtoforge.com/postfix_spf (postfix email spf antispam)
[Discover] postfix [DokuWiki] http://wiki.splitbrain.org/postfix (sasl antispam postfix spam)
[Discover] Urban Legends Reference Pages http://www.snopes.com/ (reference humor hoax fun)
[Discover] the djb way: you've got spam! http://www.thedjbway.org/djbrbl/rblsmtpd.html (antispam djb rbl qmail)
[Discover] What is reCAPTCHA? http://recaptcha.net/learnmore.html (books spam tools ocr)
[Discover] DomainKeys with qmail Howto http://jeremy.kister.net/howto/dk.html (spam antispam domainkeys qmail)
[Discover] SPF: SPF Record Syntax http://www.openspf.org/SPF_Record_Syntax (dns email spf smtp)
[Discover] FREE Animated Gif Captcha - The easiest way to keep spam bots away. Secure your blogs, forums, ... http://www.querythe.net/Animated-Gif-Captcha/ (antispam php security captcha)
[Discover] Main Page - Fail2ban http://www.fail2ban.org/wiki/index.php/Main_Page (ssh apache iptables linux)
[Discover] clapf home http://clapf.acts.hu/ (spam antivirus server ocr)
[Discover] SpamSieve: Powerful Spam Filtering for Mac OS X http://c-command.com/spamsieve/ (spam mac software osx)
[Discover] Blacklists: 比伟大的墙更有用的黑名单 - fcicq’s blog-beta http://www.fcicq.net/wp/?p=527 (antispam spam blacklist security)
[Discover] Barracuda Central http://www.barracudacentral.com/ (security)
[Discover] Virus Protection | Content Filtering | Content Security | Proactive Security | http://www.esafe.com/esafe/default.asp (security antispam antivirus shopping)
[Discover] Minute Mail http://www.10minutemail.com/10MinuteMail/index.html (email privacy useful temporary)
[Discover] reCaptcha: Stop Spam, Read Books http://recaptcha.net/ (tools books security publishing)
[Discover] Fighting Spam with Postfix http://able.com.ua/~gnut/fighting-spam.html (postfix antispam network email)
[Discover] Freespamfilter.org http://www.freespamfilter.org/ (email linux spam antispam)
[Discover] URIBL.COM - Realtime URI Blacklist http://www.uribl.com/ (spam security email linux)
[Discover] AppRiver Spam Filtering http://www.appriver.com/ (antispam)
[Discover] DNSBL - Wikipedia http://en.wikipedia.org/wiki/DNSBL (antispam email wikipedia sysadmin)
[Discover] Conference on Email and Anti-Spam http://www.ceas.cc/ (research email spam antispam)
[Discover] ClamAV - Unofficial Phishing Signatures http://www.sanesecurity.co.uk/clamav/docs.htm (antispam clamav antivirus phishing)
[Discover] Singlefin Managed Protection Services, Home http://www.singlefin.net/ (antispam)
[Discover] Cloudmark: Anti-spam, Spam Filter, Anti-virus, Anti-phishing, and Spam-Blocking for Service ... http://www.cloudmark.com/ (email antispam collaboration tool)
[Discover] Planet Antispam http://planet.spam.abuse.net/ (antispam spam aggregator blog)
[Discover] Postfix Anti-UCE Cheat Sheet http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt (postfix spam email antispam)
[Discover] Quick Spam Filter -> ivarch.com http://www.ivarch.com/programs/qsf/ (spam filter open source)
[Discover] Prevent comment SPAM with jQuery http://www.strezlab.com/dropcomment.html (jquery antispam javascript spam)
[Discover] Antispam e.V. http://www.antispam.de/ (antispam forum vereine spam)
[Discover] Nuclear Elephant: The DSPAM Project http://dspam.sourceforge.net/ (antispam email spam mta)
[Discover] Deutsche eMail-Robinsonliste http://www.robinsonliste.de/ (antispam email spam mail)
[Discover] Spam http://www.paulgraham.com/antispam.html (antispam spam email programming)
[Discover] Policy Daemon http://policyd.sourceforge.net/ (postfix antispam greylisting spam)
[Discover] Postfix and Postgrey: A proactive approach to spam filtering | Debian/Ubuntu Tips & Tricks http://www.debuntu.org/postfix-and-postgrey-a-proactive-approach-to-spam-filtering (postfix greylisting tutorial postgrey)
[Discover] Antivirus Power Controls Benelux http://www.antiviruspowercontrols.com/ (antispam antivirus)
[Discover] ПО для борьбы со спамом http://gate.udec.ntu-kpi.kiev.ua/~bat/exp/about-spam.html (antispam)
[Discover] Tagspam and Wblist Antispam Programs http://copsewood.net/tagspam/index.html (antispam bash blacklist tagspam)
[Discover] Stop Comment Spam and Trackback Spam « Akismet http://akismet.com/ (wordpress tools spam plugin)
[Discover] CastleCops® http://www.castlecops.com/ (security windows computer spyware)
[Discover] PHP Captcha Security http://www.white-hat-web-design.co.uk/articles/php-captcha.php (php captcha code programming)
[Discover] A Plan for Spam http://www.paulgraham.com/spam.html (bayesian spam programming filtering)
[Discover] Lutz Donnerhacke: Teergrubing FAQ http://www.iks-jena.de/mitarb/lutz/usenet/teergrube.en.html (teergrube smtp email spam)
[Discover] Stop spam with the Anti-Spam-SMTP-Proxy (ASSP) http://assp.sourceforge.net/ (email smtp antispam spam)
[Discover] Better Bayesian Filtering http://www.paulgraham.com/better.html (spam algorithms research email)
[Discover] The Spamhaus Project http://www.spamhaus.org/ (spam antispam email resources)
[Discover] Spam Links - dns & rhs blackhole lists http://spamlinks.net/filter-dnsbl-lists.htm (dns security dnsbl spam)
[Discover] Distributed Spam Harvester Tracking Network | Project Honey Pot http://www.projecthoneypot.org/index.php (email spam honeypot tools)
[Discover] SPF: A Sender Policy Framework to Prevent Email Forgery http://www.openspf.org/ (email security spam dns)
[Discover] Oregon State University - Network Engineering http://oregonstate.edu/net/spam/ (antispam spam rbl)
[Discover] http://www.ibiblio.org/pub/Linux/docs/HOWTO/Spam-Filtering-for-MX http://www.ibiblio.org/pub/Linux/docs/HOWTO/Spam-Filtering-for-MX (antispam spam rbl)
[Discover] Spam DNS Lists - Computer Tyme Support Wiki http://wiki.ctyme.com/index.php/Spam_DNS_Lists (antispam spam rbl isp)
[Discover] FrontPage - Spamikaze Wiki http://spamikaze.org/ (spam email gpl opensource)
[Discover] Habeas: SafeList http://www.habeas.com/en-US/Receivers/safelist/ (antispam spam rbl)
[Discover] sectoor - Server, Domains, Housing und Hosting - security, leading to success http://www.sectoor.de/tor.php (antispam spam tor infosec)
[Discover] Comparison of DNS blacklists - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Comparison_of_DNS_blacklists (spam email antispam rbl)
[Discover] MS Exchange 2003 SP2 bug related to greylisting http://www.greylisting.org/forums/showthread.php?tid=18 (antispam spam greylisting exchange)
[Discover] policyd-weight - A policy daemon for Postfix http://www.policyd-weight.org/ (antispam email spam linux)
[Discover] Gmail Improves False-Positive Spam Detection http://googlesystem.blogspot.com/2006/10/gmail-improves-false-positive-spam.html (google antispam gmail)
[Discover] Gmail: Google's approach to email http://www.google.com/mail/help/fightspam/spamexplained.html (google spam email gmail)
[Discover] Greylisting Trips Up Exchange 2003 http://www.windowsitpro.com/Windows/Article/ArticleID/95331/95331.html (antispam spam greylisting exchange)
[Discover] Catalog Choice - Eliminate unwanted catalog you receive in the mail http://www.catalogchoice.org/ (shopping environment green catalog)
[Discover] RFC-Ignorant.org Home http://www.rfc-ignorant.org/ (rfc blacklist standards email)
[Discover] DNS Stuff: DNS tools, DNS hosting tests, WHOIS, traceroute, ping, and other network and domain ... http://www.dnsstuff.com/ (dns tools whois network)
[Discover] Fighting Spam http://www.clari.net.au/Customers/FightingSpam/ (antispam email tutorial tools)
[Discover] Spam Links - the anti-spam portal http://spamlinks.net/ (antispam email directory smtp)
[Discover] SMTP Transaction Delays http://tldp.org/HOWTO/Spam-Filtering-for-MX/smtpdelays.html (antispam email server serverside)
[Discover] Greylisting: Whitepaper http://projects.puremagic.com/greylisting/whitepaper.html (email spam greylisting security)
[Discover] Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1 http://www.openspf.org/svn/project/specs/rfc4408.html (antispam email server spam)
[Discover] FGA: SPF is harmful. Adopt it. http://homepages.tesco.net/J.deBoynePollard/FGA/smtp-spf-is-harmful.html#HijackTXTResourceRecordType (antispam fga spf)
[Discover] Honeypot.net | It's the least we could do http://honeypot.net/ (antispam honeypot security sysadmin)
[Discover] How To Implement SPF In Postfix | HowtoForge - Linux Howtos and Tutorials http://www.howtoforge.com/postfix_spf (postfix email spf antispam)
[Discover] postfix [DokuWiki] http://wiki.splitbrain.org/postfix (sasl antispam postfix spam)
[Discover] Urban Legends Reference Pages http://www.snopes.com/ (reference humor hoax fun)
[Discover] the djb way: you've got spam! http://www.thedjbway.org/djbrbl/rblsmtpd.html (antispam djb rbl qmail)
[Discover] What is reCAPTCHA? http://recaptcha.net/learnmore.html (books spam tools ocr)
[Discover] DomainKeys with qmail Howto http://jeremy.kister.net/howto/dk.html (spam antispam domainkeys qmail)
[Discover] SPF: SPF Record Syntax http://www.openspf.org/SPF_Record_Syntax (dns email spf smtp)
[Discover] FREE Animated Gif Captcha - The easiest way to keep spam bots away. Secure your blogs, forums, ... http://www.querythe.net/Animated-Gif-Captcha/ (antispam php security captcha)
[Discover] Main Page - Fail2ban http://www.fail2ban.org/wiki/index.php/Main_Page (ssh apache iptables linux)
[Discover] clapf home http://clapf.acts.hu/ (spam antivirus server ocr)
[Discover] SpamSieve: Powerful Spam Filtering for Mac OS X http://c-command.com/spamsieve/ (spam mac software osx)
[Discover] Blacklists: 比伟大的墙更有用的黑名单 - fcicq’s blog-beta http://www.fcicq.net/wp/?p=527 (antispam spam blacklist security)
[Discover] Barracuda Central http://www.barracudacentral.com/ (security)
[Discover] Virus Protection | Content Filtering | Content Security | Proactive Security | http://www.esafe.com/esafe/default.asp (security antispam antivirus shopping)
[Discover] Minute Mail http://www.10minutemail.com/10MinuteMail/index.html (email privacy useful temporary)
[Discover] reCaptcha: Stop Spam, Read Books http://recaptcha.net/ (tools books security publishing)
[Discover] Fighting Spam with Postfix http://able.com.ua/~gnut/fighting-spam.html (postfix antispam network email)
[Discover] Freespamfilter.org http://www.freespamfilter.org/ (email linux spam antispam)
[Discover] URIBL.COM - Realtime URI Blacklist http://www.uribl.com/ (spam security email linux)
[Discover] AppRiver Spam Filtering http://www.appriver.com/ (antispam)
[Discover] DNSBL - Wikipedia http://en.wikipedia.org/wiki/DNSBL (antispam email wikipedia sysadmin)
[Discover] Conference on Email and Anti-Spam http://www.ceas.cc/ (research email spam antispam)
[Discover] ClamAV - Unofficial Phishing Signatures http://www.sanesecurity.co.uk/clamav/docs.htm (antispam clamav antivirus phishing)
[Discover] Singlefin Managed Protection Services, Home http://www.singlefin.net/ (antispam)
[Discover] Cloudmark: Anti-spam, Spam Filter, Anti-virus, Anti-phishing, and Spam-Blocking for Service ... http://www.cloudmark.com/ (email antispam collaboration tool)
[Discover] Planet Antispam http://planet.spam.abuse.net/ (antispam spam aggregator blog)
[Discover] Postfix Anti-UCE Cheat Sheet http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt (postfix spam email antispam)
[Discover] Quick Spam Filter -> ivarch.com http://www.ivarch.com/programs/qsf/ (spam filter open source)
[Discover] Prevent comment SPAM with jQuery http://www.strezlab.com/dropcomment.html (jquery antispam javascript spam)
[Discover] Antispam e.V. http://www.antispam.de/ (antispam forum vereine spam)
[Discover] Nuclear Elephant: The DSPAM Project http://dspam.sourceforge.net/ (antispam email spam mta)
[Discover] Deutsche eMail-Robinsonliste http://www.robinsonliste.de/ (antispam email spam mail)
[Discover] Spam http://www.paulgraham.com/antispam.html (antispam spam email programming)
[Discover] Policy Daemon http://policyd.sourceforge.net/ (postfix antispam greylisting spam)
[Discover] Postfix and Postgrey: A proactive approach to spam filtering | Debian/Ubuntu Tips & Tricks http://www.debuntu.org/postfix-and-postgrey-a-proactive-approach-to-spam-filtering (postfix greylisting tutorial postgrey)
[Discover] Antivirus Power Controls Benelux http://www.antiviruspowercontrols.com/ (antispam antivirus)
[Discover] ПО для борьбы со спамом http://gate.udec.ntu-kpi.kiev.ua/~bat/exp/about-spam.html (antispam)
[Discover] Tagspam and Wblist Antispam Programs http://copsewood.net/tagspam/index.html (antispam bash blacklist tagspam)
[Discover] Stop Comment Spam and Trackback Spam « Akismet http://akismet.com/ (wordpress tools spam plugin)
[Discover] CastleCops® http://www.castlecops.com/ (security windows computer spyware)

