DNSBL

DNSBL is the acronym for Domain Name System-Based Blacklist.

What is the acronym DNSBL? Domain Name System-Based Blacklist

Domain Name System-Based Blacklist

A service for the 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. Also known as a Domain Name System-Based Blocklist black hole list, or Domain Name System-Based Blacklist.

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