# Integrate OpenDMARC in iRedMail [TOC] !!! warning This is still a DRAFT document, do not apply it on production server. ## What are DMARC and OpenDMARC? Quote from [DMARC.org](https://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](https://github.com/trusteddomainproject/OpenDMARC). ## Requirements * OpenDMARC-1.3.1 is buggy, only the latest OpenDMARC-1.3.2 is required. * Supported OS Linux/BSD distributions: Distribution | Releases | Comment ---|---|--- CentOS | 6, 7 | Yum repo `epel` is required. Debian | 9, 10 | 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. FreeBSD | 11.x, 12.x | Port `mail/opendmarc`. ## Install OpenDMARC ## Configure OpenDMARC