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A Domain Name System-based Blackhole List (DNSBL) or Real-time Blackhole List (RBL) is an effort to stop email spamming. [1]

38 relations: Advocacy, Apache SpamAssassin, Appellate court, Black hole (networking), Blacklist (computing), Border Gateway Protocol, Boycott, Comparison of DNS blacklists, Comparison of DNS server software, Competition law, Denial-of-service attack, DNSWL, Electronic Frontier Foundation, Florida, Honeypot (computing), Internet protocol suite, Internet service provider, IP address, John Gilmore (activist), Lawsuit, List of spammers, Loopback, Message transfer agent, Open mail relay, Open Relay Behavior-modification System, Paul Vixie, Peacefire, Restraint of trade, Router (computing), Sendmail, Spam and Open Relay Blocking System, Spam Prevention Early Warning System, Spamming, Standing (law), SURBL, The Spamhaus Project, Uniform Resource Identifier, Zombie (computer science).


Advocacy is an activity by an individual or group which aims to influence decisions within political, economic, and social systems and institutions.

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Apache SpamAssassin

SpamAssassin is a computer program used for e-mail spam filtering.

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Appellate court

An appellate court, commonly called an appeals court, court of appeals (American English), appeal court (British English), court of second instance or second instance court, is any court of law that is empowered to hear an appeal of a trial court or other lower tribunal.

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Black hole (networking)

In networking, black holes refer to places in the network where incoming or outgoing traffic is silently discarded (or "dropped"), without informing the source that the data did not reach its intended recipient.

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Blacklist (computing)

In computing, a blacklist or block list is a basic access control mechanism that allows through all elements (email addresses, users, passwords, URLs, IP addresses, domain names, file hashes, etc.), except those explicitly mentioned.

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Border Gateway Protocol

Border Gateway Protocol (BGP) is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems (AS) on the Internet.

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A boycott is an act of voluntary and intentional abstention from using, buying, or dealing with a person, organization, or country as an expression of protest, usually for moral, social, political, or environmental reasons.

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Comparison of DNS blacklists

The following table lists technical information for a number of DNS blacklists.

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Comparison of DNS server software

This article presents a succinct comparison of the features, platform support, and packaging of many independent implementations of Domain Name System (DNS) name server software.

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Competition law

Competition law is a law that promotes or seeks to maintain market competition by regulating anti-competitive conduct by companies.

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Denial-of-service attack

In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet.

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DNSWL ("DNS-based whitelist") is both a generic term and a specific list.

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Electronic Frontier Foundation

The Electronic Frontier Foundation (EFF) is an international non-profit digital rights group based in San Francisco, California.

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Florida (Spanish for "land of flowers") is the southernmost contiguous state in the United States.

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Honeypot (computing)

In computer terminology, a honeypot is a computer security mechanism set to detect, deflect, or, in some manner, counteract attempts at unauthorized use of information systems.

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Internet protocol suite

The Internet protocol suite is the conceptual model and set of communications protocols used on the Internet and similar computer networks.

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Internet service provider

An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet.

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IP address

An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

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John Gilmore (activist)

John Gilmore (born 1955) is one of the founders of the Electronic Frontier Foundation, the Cypherpunks mailing list, and Cygnus Solutions.

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A lawsuit (or suit in law) is "a vernacular term for a suit, action, or cause instituted or depending between two private persons in the courts of law." A lawsuit is any proceeding by a party or parties against another in a court of law.

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List of spammers

This is a list of individuals and organizations noteworthy for engaging in bulk electronic spamming, either on their own behalf or on behalf of others.

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Loopback, or loop-back, refers to the routing of electronic signals, digital data streams, or flows of items back to their source without intentional processing or modification.

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Message transfer agent

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture.

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Open mail relay

An open mail relay is an SMTP server configured in such a way that it allows anyone on the Internet to send e-mail through it, not just mail destined to or originating from known users.

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Open Relay Behavior-modification System

Open Relay Behavior-modification System (ORBS), created and run by Alan Brown in New Zealand, was one of the first DNS-based Blackhole Lists (DNSBL), a means by which an internet domain may publish a list of IP addresses, in a database which can be easily queried automatically by other computer programs on the Internet.

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Paul Vixie

Paul Vixie is an American computer scientist whose technical contributions include Domain Name System (DNS) protocol design and procedure, mechanisms to achieve operational robustness of DNS implementations, and significant contributions to open source software principles and methodology.

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Peacefire is a U.S.-based website, with a registered address in Bellevue, Washington, dedicated to "preserving First Amendment rights for Internet users, particularly those younger than 18".

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Restraint of trade

Restraint of trade is a common law doctrine relating to the enforceability of contractual restrictions on freedom to conduct business.

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Router (computing)

A router is a networking device that forwards data packets between computer networks.

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Sendmail is a general purpose internetwork email routing facility that supports many kinds of mail-transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet.

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Spam and Open Relay Blocking System

SORBS ("Spam and Open Relay Blocking System") is a list of e-mail servers suspected of sending or relaying spam (a DNS Blackhole List).

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Spam Prevention Early Warning System

The Spam Prevention Early Warning System (SPEWS) was an anonymous service which maintained a list of IP address ranges belonging to Internet service providers (ISPs) which host spammers and show little action to prevent their abuse of other networks' resources.

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Electronic spamming is the use of electronic messaging systems to send an unsolicited message (spam), especially advertising, as well as sending messages repeatedly on the same site.

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Standing (law)

In law, standing or locus standi is the term for the ability of a party to demonstrate to the court sufficient connection to and harm from the law or action challenged to support that party's participation in the case.

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SURBL (previously stood for Spam URI RBL) is a collection of URI DNSBL lists of Uniform Resource Identifier (URI) hosts, typically web site domains, that appear in unsolicited messages.

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The Spamhaus Project

The Spamhaus Project is an international organisation, based in both London and Geneva, founded in 1998 by Steve Linford to track email spammers and spam-related activity.

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Uniform Resource Identifier

A Uniform Resource Identifier (URI) is a string of characters designed for unambiguous identification of resources and extensibility via the URI scheme.

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Zombie (computer science)

In computer science, a zombie is a computer connected to the Internet that has been compromised by a hacker, computer virus or trojan horse program and can be used to perform malicious tasks of one sort or another under remote direction.

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Redirects here:

DNS Blacklist, DNSBLs, DNSbl, Dnsbl, RBL (Internet), RHSBL, RHSbl, Real-time Blackhole List, Real-time blackhole list, Realtime Blackhole List, Rhsbl, URIBL.


[1] https://en.wikipedia.org/wiki/DNSBL

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