{"id":36,"date":"2026-09-28T12:17:51","date_gmt":"2026-09-28T09:17:51","guid":{"rendered":"https:\/\/mx1mail.com\/blog\/what-is-dmarc-how-does-it-protect-companies\/"},"modified":"2026-09-28T12:17:51","modified_gmt":"2026-09-28T09:17:51","slug":"what-is-dmarc-how-does-it-protect-companies","status":"publish","type":"post","link":"https:\/\/mx1mail.com\/blog\/en\/what-is-dmarc-how-does-it-protect-companies\/","title":{"rendered":"What Is DMARC and How Does It Protect Companies?"},"content":{"rendered":"<p>DMARC stands for Domain-based Message Authentication, Reporting and Conformance. It uses SPF and DKIM authentication results to help receiving mail systems decide how messages using a domain should be handled.<\/p>\n<h2>Why is DMARC important?<\/h2>\n<p>Attackers may attempt to send fraudulent messages while displaying a company domain in the visible From address. DMARC gives receiving systems a published policy for evaluating these messages.<\/p>\n<h2>How does DMARC work with SPF and DKIM?<\/h2>\n<p>DMARC is not an independent authentication method. It builds on SPF and DKIM and evaluates whether authenticated domains align with the domain visible to the recipient.<\/p>\n<h2>DMARC policy levels<\/h2>\n<ul>\n<li><strong>p=none:<\/strong> Used primarily for monitoring.<\/li>\n<li><strong>p=quarantine:<\/strong> Suggests treating failed messages as suspicious.<\/li>\n<li><strong>p=reject:<\/strong> Suggests rejecting messages that fail DMARC.<\/li>\n<\/ul>\n<h2>Why are DMARC reports useful?<\/h2>\n<p>Reports can reveal which systems are sending email on behalf of your domain. They are useful for identifying unauthorized senders and legitimate services that have not been configured correctly.<\/p>\n<h2>Deploy DMARC gradually<\/h2>\n<p>Moving immediately to a strict policy can affect legitimate mail. Monitoring first and correcting SPF and DKIM alignment generally provides a safer path.<\/p>\n<p>For the fundamentals, read <a href=\"https:\/\/mx1mail.com\/blog\/en\/what-are-spf-dkim-and-dmarc\/\">What Are SPF, DKIM and DMARC?<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how DMARC uses SPF and DKIM results, helps reduce domain spoofing, and provides reporting that improves business email security.<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[106,111,116,101],"class_list":["post-36","post","type-post","status-publish","format-standard","hentry","category-technical-guides","tag-dkim-en","tag-dmarc-en","tag-email-security","tag-spf-en"],"_links":{"self":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts\/36","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/comments?post=36"}],"version-history":[{"count":0,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts\/36\/revisions"}],"wp:attachment":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/media?parent=36"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/categories?post=36"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/tags?post=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}