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Spam Links Index > Spam Filtering > Server Side Spam Filtering

To link to this page use: http://spamlinks.net/filter-server.htm

Server Spam Filtering

How to implement spam filtering or spam blocking on your server.

Filtering Solutions

Additional Resources


Cross Platform Server Filters

These spam filtering applications should function whatever your operating system.

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http://www.postarmor.com/ (Java)
http://www.sortmonster.com/MessageSniffer/
http://jspamfilter.com/ (Java)
http://www.logsat.com/SpamFilter/
http://www.habeas.com/
http://sourceforge.net/projects/xpmntr/ (POSIX, uses Markov model)
http://sourceforge.net/projects/spambayes/ (Pythons)
http://www.lyris.com/products/mailshield/server/
http://www.ima.com/iems/aspam.html
http://www.hexamail.com/hexamailguard/ (Windows/Linux)
http://www.bondedsender.com/
http://assp.sourceforge.net/
http://www.mailshell.com/mail/client/oem2.html/step/module
http://www.habeas.com/services/swe.htm (Sender Warranted Email)
http://pyzor.sourceforge.net/ (Pythons, distributed)
http://www.spammanager.com/
http://paidstamp.com/
http://mini.net/tcl/3901 (TCL)
http://www.squirrelmail.org/plugin_view.php?id=115 (Squirrel Mail)

Perl Server Spam Filters

Perl (Perl is also available here and here)

http://razor.sourceforge.net/ (distributed)
http://www.contactor.se/~dast/spam.html

http://www.river.com/tools/blackberries/
http://develooper.com/code/qpsmtpd/
http://freshmeat.net/projects/disspam/
http://www.activestate.com/Products/PureMessage/
http://www.xisp.net/notespam/
http://plumeria.vmth.ucdavis.edu/~saintly/zfilter/
http://www.cpan.org/modules/by-module/Mail/Mail-SpamTest-Bayesian-0.01.readme (Bayes)
http://www.tycho.org/spamradar/ (not yet ready)
http://plumeria.vmth.ucdavis.edu/~saintly/zfilter/
http://adamspiers.org/computing/parp/
http://search.cpan.org/author/DAGOLDEN/Mail-Classifier-0.10/

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UNIX Server Spam Filters

These solutions should work with most UNIX (and POSIX) platforms.
If you wish to use procmail or other applications to filter individual mail boxes see: Unix Client Side Spam Filters

http://rblcheck.sourceforge.net/
http://www.blars.org/mod_access_rbl.html (For Apache)
http://www.samiam.org/spam/index.html
http://www.nmt.edu/~mfisk/style.cgi?unixtools/mailfilt.html
http://www.flounder.net/~mrsam/maildrop/
http://www.island-resort.com/sm.htm
ftp://ftp.media.mit.edu/pub/agents/interface-agents/MAXIMS/
http://www.abuse.net/bmtp/
http://spamassassin.org/ (track sources of spam: http://www.unicom.com/sw/spamtrak/)
http://cr.yp.to/ucspi-tcp/tcprules.html
http://cr.yp.to/ucspi-tcp/tcpserver.html
http://cr.yp.to/ucspi-tcp/rblsmtpd.html
http://www.dnsbliab.com/work.html
http://tmda.net/
http://utcc.utoronto.ca/abuse/antispam-stuff/email.html
http://www.mcfsoftware.com/simpletextfilter/
http://www.oitc.com/EIMS/Filters.html
http://utcc.utoronto.ca/abuse/antispam-stuff/email.html
http://www.jak.com/
http://www.postini.com/services/
http://www.marshalsoftware.com/issues/spam.asp
http://www.isux.com/projects/
http://www.mail-abuse.org/rbl/endorsements.html (Products that can use the RBL)
http://mailfilter.sourceforge.net/ (http://e-scribe.com/osx/mailfilter/ - how to use with OS X)
http://www.jsm-net.demon.co.uk/blackmail/blackmail.html
http://www.kallisys.com/mac/ (Mac)
http://www.tycho.org/spamradar/
http://mach3.osirusoft.com/mirror (IPTables script)
http://sourceforge.net/projects/spfilter/ (Mirrors: http://spfilter.openrbl.org/, http://mirror.bliab.com/spfilter/)
http://www.tech-mavens.com/MavenFilter/
http://www.scanmail-software.com/
http://iland.net/~ckennedy/blackhole.shtml
http://jguellec.free.fr/program/perl/clean_mail/clean_mail_english.htm (clean up mail spools)
http://dial-spam-block.sourceforge.net/
http://www.enderunix.org/index.php?tab=software&softname=spamguard (for Qmail, Sendmail, Postfix)
http://messagewall.org/
http://www.chiark.greenend.org.uk/~ian/sauce/
http://sd.inodes.org/
http://p-nand-q.com/shicks.htm
http://www.roble.com/docs/spamrep_today_byuser , http://www.roble.com/docs/spamrep_today (Filtering Reports)
http://crm114.sourceforge.net/
http://www.ai.mit.edu/~jrennie/ifile/ (Uses Bayes Theorem. Database for ifile: http://www2.picante.com:81/~gtaylor/spam/)
http://www.ai.mit.edu/~jrennie/ifile/ASS/
http://www.catb.org/~esr/bogofilter/ (Bayes)
http://sourceforge.net/projects/spamprobe/ (Bayes)
http://www.emacswiki.org/elisp/spam-stat.el (For GNU. I know, GNU is not UNIX)
http://www.sortmonster.com/MessageSniffer/
http://www.munts.com/spamfilter/spamfilter.html (OpenBSD)
http://www.eridani.co.uk/MailStripper/ (SMTP proxy)
http://expaminator.sourceforge.net/ (Bayes)
http://sourceforge.net/projects/sorbs/ (checks incoming servers for open relays and proxies)
http://grimlock.angmar.com/smtpblock/ (checks incoming servers against DNSBLs, then tests them)
http://spamfilter.nl.linux.org/
http://www.eleven.de/products/expurgate/
http://bmf.sourceforge.net/ (Bayes)
http://www.dcc-servers.net/dcc/ (distributed)
http://www.rhyolite.com/anti-spam/dcc/ (distributed)
http://mail-abuse.org/vtf/dccbeta.html (distributed)
http://lexx.shinn.net/cmeclax/nilsimsa.html (distributed)
http://www.bebits.com/app/3055 (BeOS)
http://www.networkdweebs.com/products/dspam/ (Bayes)
http://www.eridani.co.uk/MailStripper/

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Windows Server Spam Filters

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http://www.ima.com/
http://www.sica.com/freestuf/scsmfilt.htm
http://www.cmsconnect.com/Praetor/prMain.htm
http://www.software602.com/products/ls/
http://imgate.meiway.com/
http://www.tech-mavens.com/MavenFilter/
http://www.bcwaresystems.com/nospam/ (Win2k/XP)
http://www.j-bg.demon.co.uk/
http://www.ezmts.org/
http://www.rockliffe.com/products/mailsite/
http://www.pmail.com/overviews/ovw_mercury.htm
http://www.duketown.com/pinjo/
http://mailenable.com/
http://www.openhandhome.com/howtosa.html (Using Spam Assassin with Windows)
http://www.policypatrol.com/PolicyPatrolEnterprise.htm (Exchange/Lotus Domino)
http://www.dciseries.com/products/imail/
http://www.mimesweeper.com/info/spam/keyissues_spam_proactive.asp (Windows 2000 upwards)
http://www.matthew-jones.com/publish/index.php/article/articleview/28/1/9/ (VPOP3)
http://www.spambolt.com/

Exchange Server Spam Filters

http://www.dataenter.com/products/xwall.htm
http://www.gfi.com/mes/
http://www.cdolive.net/download/SMTPTransportEvent-RBLBlocking.zip
http://www.vamsoft.com/
http://www.nemx.com/products/powerpac/
http://www.appriver.com/arm/exchange.htm
http://www.trendmicro.com/en/products/email/smem/evaluate/overview.htm
http://www.microsoft.com/exchange/evaluation/ti/beta.asp ("Titanium")
http://www.eleven.de/products/expurgate/

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Specific Mail Server Spam Filters

Filtering add-ons to specific mail server applications and instructions on how to filter spam with specific servers.

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Sendmail Spam Filters

Sendmail

http://www.duh.org/spamblock/
http://www.jsm-net.demon.co.uk/blackmail/blackmail.html
http://www.lyris.com/products/mailshield/
http://www.digitalanswers.org/check_local/
http://www.scanmail-software.com/
http://www.activestate.com/Products/PureMessage/
http://opensource.confusticate.com/rbl-milter/
http://grimlock.angmar.com/smtpblock/
http://www.megacity.org/software.html
http://www.canit.ca/
http://www.sng.ecs.soton.ac.uk/mailscanner/
http://www.gtoal.com/spam/sendmail.html
http://www.cs.niu.edu/~rickert/cf/
http://blue-labs.org/software/Bmilter/
http://tweegy.demon.nl/projects/spammilt/
http://www.bsmdevelopment.com/Products/VFilterDL.html
http://www.dansie.net/anti_spam.html
http://www.visi.com/~hawkeyd/spamfilters.html
http://www.duh.org/pmilter/ (Milter, in Perl)
http://www.linuxmailmanager.com/tantalus.html (Milter, Perl, alleviates dictionary attacks)
http://www.megacity.org/software_downloads/spamcheck.milter.txt (See http://www.megacity.org/software.html)
ftp://ftp.perl.org/pub/CPAN/modules/by-module/Sendmail/ (Perl interface to Milter)
http://tweegy.demon.nl/projects/spammilt/
http://spam.geht.net/
http://openbottle.sourceforge.net/ (per-user whitelisting)

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Postfix Spam Filters

Postfix

http://www.postfix.cs.uu.nl/uce.html
http://www.monkeys.com/anti-spam/filtering/additions.html
http://www.kobitosan.net/postfix/antispam.html (Japanese)
http://www.stahl.bau.tu-bs.de/~hildeb/postfix/
http://www.bagley.org/~doug/spam/postfix.shtml
http://www.hispalinux.es/~data/postfix/craig-sanders/index.txt
http://www.postfix.org/addon.html#uce
http://www.kfki.hu/~kadlec/sw/postfix_patch.html (per user filtering)
http://x.guimard.free.fr/postfix/uce.html
http://www.xigole.com/bbd/postfix/
http://www.kaspersky.com/buyonline.html?chapter=967506
http://www.advosys.ca/papers/printable/postfix-filtering.html
http://www.mengwong.com/misc/postfix-uce-guide.txt

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Exim Spam Filters

Exim

http://www.exim.org/howto/rbl.html
http://sourceforge.net/projects/iscan/
http://colondot.net/mbm/mailfilter-full.shtml
http://www.sng.ecs.soton.ac.uk/mailscanner/
http://www.smnolde.com:7080/exim/system_filter.exim
http://www.chiark.greenend.org.uk/~ian/sauce/
http://www.etla.org/articles/filter/ (Perl)
http://iscan.sourceforge.net/home/index.php
http://marc.merlins.org/linux/exim/sa.html (SpamAssassin)
http://elspy.sourceforge.net/

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Qmail Spam Filters

Qmail

http://www.qmail.org/top.html#spam
http://web.greens.org/about/software/dnsbl.shtm

http://www.mouken.com/SPAMbaffle/
http://omail.omnis.ch/ospam/
http://spamthrottle.qmail.ca/
http://www.garyarnold.com/projects.php#bayespam (Bayes)
http://www.chrishardie.com/tech/qmail/qmail-antispam.html
http://deny-spammers.sourceforge.net/ (firewall spammers off)
http://www.pgregg.com/projects/qmail/spamfilter/ (uses procmail)
http://www.qmail.org/spam-filter
http://www.qmail.org/qqrbl
http://www.qmail.org/qmail-smtpd-relay-reject (reject relay tests)
http://www.gbnet.net/~jrg/qmail/ifspamh/ (spamassassin plugin)
http://www.30below.com/~zmerch/qmail/spambad.cfm
http://chris.shenton.org/sysadm/antispam/dcc-qmail-gnus.html

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Lotus Domino Spam Filters

http://www.idgnews.net/SpamFilter
http://www.tomlyne.com/kspam/
http://enterprisesecurity.symantec.com/products/products.cfm?ProductID=135
http://www.maysoft.com/web3.nsf/bykey/FPAO5KRQX6

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ZMailer Spam Filters

ZMailer

http://utcc.utoronto.ca/abuse/antispam-stuff/zmailer.html
http://www.zmailer.org/smtp-policy.html

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Communigate Pro Spam Filters

Communigate Pro

http://www.stalker.com/CommuniGatePro/AntiSpam.html#BlackDNS

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IMail Spam Filters

IMail Server for NT

http://www.sortmonster.com/IMFilter/
http://imgate.meiway.com/
http://www.declude.com/JunkMail/
http://www.imagefxonline.net/apps/delog/ (log viewer for JunkMail)
http://www.slsoft.com/spamreview.htm (log viewer for JunkMail)
http://www.imagefxonline.net/apps/sf/ (plugin for JunkMail)

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Eudora Internet Mail Server Spam Filters

Eudora Internet Mail Server for the Mac

http://www.oitc.com/EIMS/VirusFilters.html
http://www.moensted.dk/eims/
http://www.eudora.co.nz/eimsfilters.html
http://www.madoverlord.com/Projects/TOLD.t

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Novell Groupwise Spam Filters

http://www.beginfinite.com/

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RMail Spam Filters

RMail GNU Emacs

http://www.weizmann.ac.il/home/eli/Downloads/rmail-spam-filter/

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Mac Spam Filters

http://www.raeinternet.com/rav/rav_mailservers.html
http://www.spambolt.com/

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Application Service Provider Spam Filters

Application Service Providers, who pass your email via their own hosted service servers before delivering it to your own servers.
A similar service is possible on a single mailbox level: Third Party Client-side Spam Filters

Mailshell

http://spamlinks.mailshell.com/sc_asp_join.html
http://www.brightmail.com/
http://mail-cleaner.com/

http://www.singlefin.net/services/spam_filter.php
http://www.messagelabs.com/page.asp?id=568
http://www.spamlion.com/ (whitelisting)
http://www.jak.com/spam_blocking.htm
http://marvin.sihope.com/
http://www.junkproof.net/
http://www.eleven.de/products/expurgate/asp
http://www.edoxs.com/
http://www.emailclean.com/
http://www.spamstopshere.com/
http://www.frontbridge.com/services/spam_filtering/
http://www.mxlogic.com/services/spam_guard.php
http://www.mailfoundry.com/product_info/mailfoundry_asp/overview/
http://www.versature.com/
http://www.mailcleanser.com/anti-spam.php
http://www.mailwatch.com/
http://www.sonicmail.net/

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Standalone Appliance Spam Filters

A separate spam filtering appliance that sits in front of your mail server.

http://www.escom.com/asmtp.html
http://www.8e6technologies.com/products/es2000/
http://www.mirapoint.com/products/message_director.shtml
http://www.vircom.com/Enterprise/Solutions/antispamgate/
http://www.borderware.com/products/mg/
http://www.mxtreme.com/ (see http://www.mxtreme.com/products/mx/mxserver.shtml)
http://www.cloudmark.com/products/authority/
http://www.bluecatnetworks.com/meridius/
http://www.tumbleweed.com/en/products/solutions/appliance_edition.html
http://www.mailfoundry.com/stop_spam/
http://www.sentinet.net/index.php?page=products/sentinet/aim&menu=products
http://www.trimmail.com/
http://www.borderware.com/iforce/

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Blacklists and DNS Blackhole Lists

DNS Blackhole Lists (DNSBLs) provide a database which can be queried by DNS, which is useful primarily for server side applications but are now being utilised in client side implementations.

Blacklists offer much the same service but are used delivered as single-line text records for input into a mail program.

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How Spam Filtering Works

Principles and specific examples on how to filter spam on a server level.

Filtering Frequently Asked Questions

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To link to this page use: http://spamlinks.net/filter-server.htm

Last updated: 28 Agosto, 2019

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