DNS Providers Blacklist (DNS-bl)

(not to be confused with dsbl.org. The DNS-bl is for use by DNS Providers, it is not for use as mail server spam blocker. Although an exception to this exists in the ancillary zone ex.dnsbl.org which can be used in that context, the primary purpose of the DNS-bl is for DNS Providers to collectively deny DNS services to known spam domains.)

Attention Postmasters!

Are you using the in.dnsbl.org zone on your mail servers? Don't Do That! Read this

The DNS-bl is a co-operative effort by DNS providers across the internet to deny DNS service to known spam domains.

To contribute to the DNS-bl you must be one of the following:

Entities that make up the above industry can individually make it easy for spam domains to operate, as services such as these make it easy for the spammers to hop from provider to provider because their DNS is managed from an independent third point. And as these spammers eventually get kicked off a DNS provider for AUP or ToS violations, they simply change to another and begin anew.

Conversely, entities that make up the above industry can collectively make it difficult for spam domains to operate. If a spam domain gets kicked off one DNS provider for AUP or ToS violations, they may not sweat it until they realize they cannot move to many of the other alternatives because of the DNS-bl.

Qualified entities who want to participate in the DNS-bl initiative should email info@dnsbl.org

The current status of the DNS-bl is: operational


Search the DNS-bl:
Home | FAQ | ex.dnsbl.org
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