This is still a DRAFT document, do not apply it on production server.
Quote from DMARC.org:
DMARC, which stands for Domain-based Message Authentication, Reporting & Conformance, is an email authentication, policy, and reporting protocol. It builds on the widely deployed SPF and DKIM protocols, adding linkage to the author (
From:) domain name, published policies for recipient handling of authentication failures, and reporting from receivers to senders, to improve and monitor protection of the domain from fraudulent email.
OpenDMARC is a free open source software implementation of the DMARC specification. Source code hosted on GitHub.
OpenDMARC version 1.3.2 (or later) is required (version 1.3.1 is buggy).
Supported OS Linux/BSD distributions:
|CentOS||6, 7||Yum repo
|Ubuntu||18.04||16.04 ships OpenDMARC-1.3.1 which is buggy.|
|OpenBSD||The latest 6.5 release doesn't offer opendmarc binary package.|
yum clean metadata && yum install opendmarc
apt-get update && apt-get install opendmarc
cd /usr/ports/mail/opendmarc && make install clean