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dmarc.org – Domain Message Authentication Reporting & Conformance
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role="search" method="get" class="search-form" action="https://dmarc.org/"> <label> <input type="search" class="search-field" placeholder="Search…" value="" name="s" title="Search for:" /> </label> <input type="submit" class="search-submit" value=" " /> </form> </div> </div> </div> <div class="clearboth"></div> </header><!-- #masthead --> <div class="site-body site-pad"> <div class="site-container"> <div id="primary" class="content-area"> <article id="post-18" class="post-18 page type-page status-publish hentry"> <div class="entry-content"> <h2>What is DMARC?</h2> <p>DMARC, which stands for “Domain-based Message Authentication, Reporting & Conformance”, is an <a href="/wiki/Glossary#Email_Authentication">email authentication</a>, policy, and reporting protocol. It builds on the widely deployed <a href="/wiki/Glossary#SPF">SPF</a> and <a href="/wiki/Glossary#DKIM">DKIM</a> 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.</p> <h2>Overview of DMARC</h2> <p>An overview of how DMARC works is available <a href="https://dmarc.org/overview/">on this page</a>.</p> <h2>Status of DMARC</h2> <p>The IETF RFC Editor published RFC 7489, “Domain-based Message Authentication, Reporting, and Conformance (DMARC)” on the Independent Submission stream on March 18th, 2015. RFC 7489, which can be <a href="https://datatracker.ietf.org/doc/html/rfc7489">found here</a>, is being developed for the Standards Track by the <a href="https://datatracker.ietf.org/wg/dmarc/">IETF DMARC Working Group</a>.</p> <p><a name="whyisDMARCimportant"></a></p> <h3>Why is DMARC Important?</h3> <p>A brief answer to this question is available <a href="https://dmarc.org/wiki/FAQ#Why_is_DMARC_important.3F">here</a>.</p> <p><a name="howdoesDMARCwork"></a></p> <h3>How Does DMARC Work?</h3> <p>A brief, non-technical answer to this question is available <a href="https://dmarc.org/wiki/FAQ#How_does_DMARC_work.2C_briefly.2C_and_in_non-technical_terms.3F">here</a>. A more detailed explanation is available <a href="https://dmarc.org/overview/">on this page</a>.</p> <p><a name="whocanuseDMARC"></a></p> <h3>Who Can Use DMARC?</h3> <p>DMARC policies are published in the public Domain Name System (DNS), and available to everyone. 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