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ICANN - DNS abuse handling
RIPE NCC-690 - Best Current Operational Practice for Operators: IPv6 prefix assignment for end-users - persistent vs non-persistent, and what size to choose
M3AAWG Best Practices for Managing SPF Records - Defining and maintaining a Sender Policy Framework (SPF) record is an important part of establishing an email sender’s online identity. SPF, as defined by the IETF (Internet Engineering Task Force) standard RFC 7208 (https://www.rfc-editor.org/rfc/rfc7208.txt) 1, enables senders to identify servers that are authorized to send email on behalf of a domain owner.
M3AAWG Trust in Email Begins with Authentication - The Internet’s growth allows us to interact with people all over the world. Unfortunately, some of those people do not make good neighbors. Along with the effort to detect and filter the problematic traffic they generate, there is a complementary effort to identify trustworthy participants. In security technology parlance, the first seeks to identify Bad Actors, whereas the second creates ways of distinguishing Good Actors.
M3AAWG Email Authentication Recommended Best Practices 2020 This document recommends a set of best practices for authenticating email messages using the security protocols Sender Policy Framework (SPF), Domain Keys Identified Mail (DKIM), Domain-based Message Authentication, Reporting & Conformance) DMARC and Authenticated Received Chain (ARC). (Another security protocol, SMTP authentication, meaning the presentation of credentials during the submission of a

message by a Mail User Agent (MUA) or Mail Submission Agent (MSA) to a Mail Transfer Agent (MTA) serves a different purpose and is outside the scope of this document.)