HomeBest Practices

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.

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June 15, 2016

M3AAWG Introduction to Traffic Analysis

M3AAWG outlines the key characteristics of traffic analysis attacks, discusses potential ways to avoid them, and considers the advantages and disadvantages of deploying preventative measures.
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February 07, 2016

M3AAWG Best Practices for Unicode Abuse Prevention

With the advent of International Domain Names, Internationalized Top-Level Domains and Email Address Internationalization there will be an increase in the legitimate usage of Unicode characters and an increase in the potential for its abuse as well. This document provides best practices to curtail the potential Unicode abuse.
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February 07, 2016

M3AAWG Unicode Abuse Overview and Tutorial

Provides background on the use of Unicode characters in the abuse context with a tutorial on the options to curtail that abuse.
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January 31, 2016

M3AAWG Initial Recommendations for Using Forward Secrecy to Secure Data

Opportunistic encryption is one step in protecting email traffic between messaging providers but it might not be sufficient unless forward secrecy is also employed for the connection. This document explains why forward secrecy is necessary and provides guidance for implementing it.
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January 21, 2016

M3AAWG Protecting Parked Domains Best Common Practices-Updated December 2015

Many organizations and individuals register “parked” domains not meant to either send or receive email traffic. Mailbox providers can authenticate incoming email from these domains quite effectively, provided such domains have the necessary identifiers. This best practices document describes what identifiers can be used to indicate a domain or subdomain that is not meant to send or receive emails. The December 2015 version updates some industry links that changed.

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