Dnsbls

Some articles on dnsbls, dnsbl:

DNSBL - Criticisms
... who find their messages blocked from mail servers that use DNSBLs may object, sometimes to the extent of attacking the existence of the lists themselves ... A few DNSBL operators will request payment (e.g ... for senders to configure their systems appropriately to avoid becoming listed on a DNSBL ...
Uses of DNSBLs
... commonly) to accept email based on a DNSBL listing ... This is the oldest usage form of DNSBLs ... or pointless because of how the MTA handles multiple DNSBLs ...
History of DNSBLs
... The first DNSBL was the Real-time Blackhole List (RBL), created in 1997, at first as a BGP feed by Paul Vixie, and then as a DNSBL by Eric Ziegast as part of Vixie's Mail Abuse ... The very first version of the RBL was not published as a DNSBL, but rather a list of networks transmitted via BGP to routers owned by subscribers so that network operators could drop all ... The inventor of the technique later commonly called a DNSBL was Eric Ziegast while employed at Vixie Enterprises ...
The Spamhaus Project - Spamhaus DNSBLs and DNSWLs
... for a number of very widely used anti-spam DNS-based Blocklists (DNSBLs) and Whitelists (DNSWLs) ... Like all DNSBLs, their use is considered controversial by some ... trojan-horse exploits." That is to say, like several other DNSBLs it is a list of known open proxies and exploited computers being used to send spam and ...
History of DNSBLs - URI DNSBLs
... A URI DNSBL is a DNSBL that lists the domain names and IP addresses which are found in the "clickable" links contained in the body of spams, but generally not found inside legitimate messages ... URI DNSBLs were created when it was determined that much spam made it past spam filters during that short time frame between the first use of a spam-sending IP address and the point where that sending IP address was ... when a spam filter extracts all URIs from a message and checks them against a URI DNSBL, then the spam can be blocked even if the sending IP for that spam has not yet been ...