Overview of Best Email DNS-Based List Operational Practices
RFC 6471, “Overview of Best Email DNS-Based List Operational Practices”, is an Informational document published in January 2012 by C. Lewis, M. Sergeant. The canonical text is published by the RFC Editor.
Abstract
The rise of spam and other anti-social behavior on the Internet has led to the creation of shared DNS-based lists (DNSBLs) of IP addresses or domain names intended to help guide email filtering. This memo summarizes guidelines of accepted best practice for the management of public DNSBLs by their operators as well as for the proper use of such lists by mail server administrators (DNSBL users), and it provides useful background for both parties. It is not intended to advise on the utility or efficacy of particular DNSBLs or the DNSBL concept in general, nor to assist end users with questions about spam. This document is not an Internet Standards Track specification; it is published for informational purposes.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 6471 is hosted at rfc-editor.org. Available in TXT,HTML.
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