These best practices and white papers represent the cooperative efforts of M3AAWG members to provide the industry with recommendations and background information to improve messaging security and protect users. M3AAWG best practices are updated as needed and new documents are added as they become available.
These updated best practices outline the criteria for exit, entry, remediation and subscriber education when using a walled garden to remediate virus and bot infections in subscriber devices.
This document gives an overview of the current best common practices for sending commercial electronic messaging, focusing on the technical and practical policy aspects of these operations. The goal of these practices is to promote and enhance the transparency of senders maintaining legitimate messaging so that both individual recipients and mailbox providers are more easily able to distinguish legitimate messaging from messaging abuse.
M3AAWG recommends three basic measures, including turning on opportunistic TLS, that messaging providers can implement relatively quickly to enhance the security and privacy of their users’ mail.
M3AAWG Network Address Translation Best Practices: The Implications of Large Scale NAT for Security Logging
Provides guidance for system operators, network designers, security professionals and Internet Service Providers about potential issues associated with Large Scale Network Address Translation systems.
ESPs take on significant risk every time a new customer sends email. A bad client can undermine the sending reputation for the ESP’s other clients as well as inflict abuse at recipient domains. This paper reviews some vetting practices to avoid these problems.