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Black List Directory

  • The Abusive Hosts Blocking List (AHBL) - Publishes a list of known abusive hosts (open relays, open proxies, spam sources, DoS drones, and more) in various forms including a DNSbl.
  • MAPS Dial-up User List (DUL) - An IP blacklist of dialup-using "stealth" spammers and email trespassers.
  • - Personal (DNSBL) list of abusive networks that the author blocks from sending mail or accessing his web servers.
  • - Spam Blacklist - As a public service, McFadden Associates maintains a free DNSBL blacklist. Anyone sending SPAM into their mail filters is automatically added for a period of thirty days.
  • Five Ten - Local Black Holes - that includes dialup equivalent ip addresses, individual spam sources, netblocks that refuse to remove spammers, bulk mailers that don't require confirmed opt-in, output servers from multi-stage open relay chains and single stage open relays not listed on ORBZ.
  • Blacklists Compared - Weekly reports of DNS blacklists lookups of IP addresses (and reverse DNS lookups) that made SMTP connections to the San Diego Supercomputer Center on that week. Useful for getting a grasp of the size of the various blacklists. Maintained by Jeff Makey.
  • Better Ethics Online - Publishes black list of spammers and seeks to promote online ethics.
  • Not Just Another BlackList (NJABL.ORG) - Spam blocking blacklist of open relays, dial-ups, and direct spam sources.
  • Open Relay Check - Known open relay list.
  • ip4r (DNSBL-style) DNS lookups - List, in table form, of blacklists. Includes table with the name of the blacklists, their lookup domains, the IP that is returned in case of a match and a description.
  • Spamikaze - Automated spam blocklist system, designed to block spam at the SMTP level.
  • The DNSBL - An IP-to-country DNS mapping service so you can choose to block a specific country or countries.
  • Spam & Open Relay Blocking System (SORBS) - Lists Open Relays and Open Proxies (Open HTTP Proxy Servers and Open SOCKS Proxy Servers). SORBS only scans a host when it attempts to send mail to one of the feeder servers.
  • DNS Real-time Black List (DNSRBL) - DNSRBL publishes, via DNS, a list of IP addresses that are either direct SPAM sources or Dial-up (dynamic address) pools which would never be a source of non-SPAM eMail.
  • AntiSpam DNSBL - Identifies spam sources - whether intentional or not - at the time they are sending spam. Not before and not after.
  • The South Korea Blocking List - Blocking list to filter out Korean spam.
  • Clueless Mailers - Offers background information on the worst of the new Internet abusers.
  • Spamware Vendor List - List of live spamware sites and related links.
  • Blacklist of Internet Advertisers - To curb inappropriate advertising on usenet newsgroups and via junk e-mail.
  • Spam Filtering @ Monkeys.Com - Unsecured Proxies List - Lists open proxies. An open proxy of one kind or another is bad because spammers may use it to send out massive amounts of unsolicited bulk e-mail spam.
  • - Publishing a variety of DNS blocklists including entire countries and ISP's.
  • UCEPROTECT Network - Three different Blacklists made in Germany available for Download (Wget), Rsync or use by (eXtreme spam Blocking List) -
  • Providers that let users spam,, and other spamtraps and ignore reports, host spamvertized pages or pages selling spamware get listed. Using risks missing a lot of legitimate e-mail.
  • MailPolice RHS-BL -
  • RHS-style lists of domains which have sent spam to MailPolice customers. Currently divided into two lists, bulk senders - domains associated with bulk mail - and pornography - domains associated with sending and hosting pornographic content.
  • Blitzed IRC Network (OPM.BLITZED.ORG) - A dnsbl of open proxies (HTTP, Socks and wingate), populated by IRC connection scanners and spamtraps.
  • Easynet Nederland ( Spamlists - DISCONTINUED DEC 1 2003
  • Whois-Details for Blacklisted Spam Domains - List of domains that have been advertised via spam, with name server, registration date, registrant. This list is updated daily.
  • Chinese and Korean Net Blocks - Lists IP blocks of China and Korea for those who want to avoid asian spam.
  • Electric Eye Ultimate Banned List - A manually updated and verified online database of spammers. Provides email address and domain blocklist.
  • Spam Support Permanent Blocklist - A permanent blocklist of spam supporting web hosts and ISPs.
  • Spamerang - A call for all internet users to turn the spammers' own email addresses into spam bait.
  • Spambag of the Month - Makes examples of people who feel the need to send unsolicited emails. Sample emails and follow-up information.
  • - List of known bulk email software regarded as Spamware.
  • Known Spammers List - List of emails and addresses of persons or organizations known to spam.
  • RBL-Type Services - A listing of sites offering spam-related filter / blackhole lists.
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Untitled Document
What is Blacklist?  
Types of Blacklist?
How did you land in a Blacklist?
How do Blacklists work?
Delisting from Blacklist? 
How to avoid Blacklist?
(Good email marketing strategy?)
Email Marketing Do's and Don'ts?
Open Relay
Proposals offered to nip the spam bud?
Spam filters?
Spammer's notebook?
Synopsis of Can-Spam Act
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