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HandWiki. Domain Name System-based Blackhole List. Encyclopedia. Available online: https://encyclopedia.pub/entry/34419 (accessed on 13 September 2026).

HandWiki. Domain Name System-based Blackhole List. Encyclopedia. Available at: https://encyclopedia.pub/entry/34419. Accessed September 13, 2026.

HandWiki. "Domain Name System-based Blackhole List" Encyclopedia, https://encyclopedia.pub/entry/34419 (accessed September 13, 2026).

HandWiki. (2022, November 14). Domain Name System-based Blackhole List. In Encyclopedia. https://encyclopedia.pub/entry/34419

HandWiki. "Domain Name System-based Blackhole List." Encyclopedia. Web. 14 November, 2022.

Domain Name System-based Blackhole List

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The content is sourced from: https://handwiki.org/wiki/Domain_Name_System-based_blackhole_list

A Domain Name System-based blackhole list, Domain Name System blacklist (DNSBL) or real-time blackhole list (RBL) is a service for operation of mail servers to perform a check via a Domain Name System (DNS) query whether a sending host's IP address is blacklisted for email spam. Most mail server software can be configured to check such lists, typically rejecting or flagging messages from such sites. A DNSBL is a software mechanism, rather than a specific list or policy. Dozens of DNSBLs exist. They use a wide array of criteria for listing and delisting addresses. These may include listing the addresses of zombie computers or other machines being used to send spam, Internet service providers (ISPs) who willingly host spammers, or those which have sent spam to a honeypot system. Since the creation of the first DNSBL in 1998, the operation and policies of these lists have frequently been controversial, both in Internet advocacy circles and occasionally in lawsuits. Many email systems operators and users consider DNSBLs a valuable tool to share information about sources of spam, but others including some prominent Internet activists have objected to them as a form of censorship. In addition, a small number of DNSBL operators have been the target of lawsuits filed by spammers seeking to have the lists shut down.

blacklist censorship dnsbl

References

"What will stop spam?:". December 1997. http://sunsite.uakom.sk/sunworldonline/swol-12-1997/swol-12-vixie.html.
"RFC5782". http://tools.ietf.org/html/rfc5782.
"SURBL". SURBL. http://www.surbl.org/.
"URIBL". URIBL. http://www.uribl.com/.
"ivmURI". Dnsbl.invaluement.com. 2008-05-31. http://dnsbl.invaluement.com/ivmuri/.
"The Domain Block List". The Spamhaus Project. http://www.spamhaus.org/dbl/.
"A new paradigm for DNS based lists". http://www.mentby.com/marc-perkel-2/a-new-paradigm-for-dns-based-lists.html.
As of July 2016, 30 out of 41 MTAs listed in Comparison of mail servers are known to support DNSBL, 1 doesn't, and the remaining 10 are not known.
"Junk Email Filter". Wiki.junkemailfilter.com. 2012-02-17. http://wiki.junkemailfilter.com/index.php/Spam_DNS_Lists.
"Email delivery problems explained". http://www.topwebhosts.org/articles/email-delivery-problems.php.
"Electronic Frontier Foundation, EFFector, Vol. 14, No. 31, Oct. 16, 2001". https://www.eff.org/effector/14/31.
"The Spamhaus Project, Policy Block List". http://www.spamhaus.org/pbl/.
"Maps Rbl". Mail-abuse.com. 2012-03-03. http://www.mail-abuse.com/.
UCEPROTECT. "UCEprotect.net". UCEprotect.net. http://www.uceprotect.net/en/index.php?m=2&s=0.
"Getting onto a blacklist without sending any spam". MailChannels Blog. MailChannels Corporation. http://mailchannels.com/blog/2010/11/getting-off-of-blacklists-uceprotect-in-particular/.
"TOAD.com". TOAD.com. http://www.toad.com/gnu/verio-censorship.html.
"Coalition statement against "stealth blocking"". Peacefire.org. 2001-05-17. http://www.peacefire.org/stealth/group-statement.5-17-2001.html.
McWilliams, Brian (10 September 2003). "No Truce in the Spam Wars". Wired. https://www.wired.com/2003/09/no-truce-in-the-spam-wars/.
"Linxnet.com". Linxnet.com. http://www.linxnet.com/misc/spam/slapp.php.
Leyden, John (5 September 2011). "Spamhaus victorious after 5-year fight with mass mailer". The Register. https://www.theregister.com/2011/09/05/spamhaus_e360_insight_lawsuit/.

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