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.
Nearly all email systems, including those of Email Sender Providers and network operators, at some point have delivery issues because their sending IPs or domains are on a blocklist. This document shares established procedures defining how to triage and respond to a blocklisting to assist in a timely and effective resolution. Version 1.0.1 was updated in February 2018.
Over a thousand new generic Top-Level Domains (gTLDs) have been, or are in, the process of being created under ICANN’s new gTLD program. This paper is written for current Registry operators and for companies interested in applying for new gTLDs, and outlines the risks and some relatively simple recommendations that can help correct these problems.
Email abuse rates can significantly affect a sender’s reputation and, consequently, its ability to deliver customers’ emails to the inbox. This paper explains some of the common processes senders can use to effectively manage and monitor email complaints and to help their customers, who are the list owners, develop healthy email practices that generate better results.
of email lists.
Many list web forms provoke an email confirmation to the subscriber's email address provided in the form but malicious entities are now using this feature to do bulk form submissions with forged addresses that flood the subscriber’s inbox. M3AAWG members collaborated across the industry to propose a header as an initial step that hosting and sending companies can implement to help protect against these attacks. The header allows receivers to identify floods of mail coming from sign-up forms that are bombarding victim mailboxes.
This document covers best practices on how to properly construct and maintain an SPF record, common errors and some unintended consequences. It is targeted at those with a basic understanding of the purpose and usage of SPF.