{"id":3411,"date":"2026-03-05T19:36:44","date_gmt":"2026-03-05T14:06:44","guid":{"rendered":"https:wyzard.local\/?p=3411"},"modified":"2026-03-05T19:36:54","modified_gmt":"2026-03-05T14:06:54","slug":"dmarc-setup-guide","status":"publish","type":"post","link":"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/","title":{"rendered":"What Is DMARC And How To Set It Up"},"content":{"rendered":"\n<p>DMARC stands for <strong>Domain-based Message Authentication, Reporting, and Conformance<\/strong>. It\u2019s a standard that helps protect your domain from spoofing and improves trust with mailbox providers. DMARC tells receiving servers what to do when a message claiming to be from your domain fails authentication checks.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-black ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #fcfcfc;color:#fcfcfc\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #fcfcfc;color:#fcfcfc\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/#What_DMARC_Checks\" >What DMARC Checks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/#DMARC_Policies_You_Can_Set\" >DMARC Policies You Can Set<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/#How_To_Set_Up_DMARC_Step-By-Step\" >How To Set Up DMARC (Step-By-Step)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/#Useful_DMARC_Tags\" >Useful DMARC Tags<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/#Where_To_Publish_DMARC\" >Where To Publish DMARC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/#IT_Hygiene_With_A_Revenue_Lever\" >IT Hygiene With A Revenue Lever<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_DMARC_Checks\"><\/span><strong>What DMARC Checks<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>DMARC works with <strong>SPF<\/strong> and <strong>DKIM<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SPF<\/strong> lists which sending servers can send mail for your domain.<\/li>\n\n\n\n<li><strong>DKIM<\/strong> adds a cryptographic signature to messages so recipients can verify the message wasn\u2019t altered in transit.<\/li>\n<\/ul>\n\n\n\n<p>When a message arrives, the recipient evaluates SPF and DKIM, then applies your DMARC policy. If alignment or authentication fails, DMARC instructs the receiver how to handle that message.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DMARC_Policies_You_Can_Set\"><\/span><strong>DMARC Policies You Can Set<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>DMARC policies live inside your DNS record:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>p=none<\/strong>: Collect reports, take no enforcement action.<\/li>\n\n\n\n<li><strong>p=quarantine<\/strong>: Route failing messages to spam or junk.<\/li>\n\n\n\n<li><strong>p=reject<\/strong>: Block failing messages.<\/li>\n<\/ul>\n\n\n\n<p>A common rollout is to start with p=none so you can watch what\u2019s happening, then move to quarantine, then reject once legitimate sources are authenticated.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_To_Set_Up_DMARC_Step-By-Step\"><\/span><strong>How To Set Up DMARC (Step-By-Step)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Step 1: Sign in to your DNS provider<\/strong><strong><br><\/strong> Examples: Cloudflare, GoDaddy, Namecheap, Route 53.<\/p>\n\n\n\n<p><strong>Step 2: Create a new TXT record<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Name \/ Host:<\/strong> _dmarc<br>(Some providers ask for _dmarc.yourdomain.com.)<\/li>\n\n\n\n<li><strong>Type:<\/strong> TXT<\/li>\n<\/ul>\n\n\n\n<p><strong>Step 3: Add a starter DMARC value<\/strong><strong><br><\/strong> Start simple:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>v=DMARC1; p=none<\/li>\n<\/ul>\n\n\n\n<p><strong>Step 4: Save and wait for DNS propagation<\/strong><strong><br><\/strong> Propagation often takes minutes, sometimes longer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Useful_DMARC_Tags\"><\/span><strong>Useful DMARC Tags<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>DMARC records can include extra tags beyond v and p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>rua=: Where aggregate reports should be sent.<\/li>\n\n\n\n<li>pct=: Apply the policy to a percentage of mail during rollout.<\/li>\n\n\n\n<li>aspf= and adkim=: Alignment mode (r relaxed, s strict).<\/li>\n\n\n\n<li>sp=: Policy for subdomains.<\/li>\n<\/ul>\n\n\n\n<p>A more complete example might look like this (use addresses and settings that fit your setup):<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>v=DMARC1; p=quarantine; pct=50; rua=mailto:dmarc-reports@yourdomain.com; aspf=r; adkim=r<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_To_Publish_DMARC\"><\/span><strong>Where To Publish DMARC<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Most teams publish DMARC on the <strong>root domain<\/strong> so coverage isn\u2019t fragmented. Subdomain behavior can be controlled with sp= if needed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"IT_Hygiene_With_A_Revenue_Lever\"><\/span><strong>IT Hygiene With A Revenue Lever<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>DMARC issues don\u2019t stay \u201ctechnical\u201d for long. If outbound and follow-ups get flagged, pipeline slows. <a href=\"https:\/\/wyzard.ai\/blog\/?utm_source=website&amp;utm_medium=blog&amp;utm_campaign=Deliverability_Validation\">Wyzard.ai<\/a> helps teams validate sender readiness by checking key DNS authentication and deliverability signals before sequences go live, so high-intent leads get the response they should. <a href=\"https:\/\/wyzard.ai\/blog\/demo\/?utm_source=website&amp;utm_medium=blog&amp;utm_campaign=Deliverability_Validation\">Learn more at Wyzard.ai<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DMARC stands for Domain-based Message Authentication, Reporting, and Conformance. It\u2019s a standard that helps protect your domain from spoofing and improves trust with mailbox providers. DMARC tells receiving servers what to do when a message claiming to be from your domain fails authentication checks. What DMARC Checks DMARC works with SPF and DKIM: When a&hellip; <a class=\"more-link\" href=\"https:\/\/wyzard.ai\/blog\/dmarc-setup-guide\/\">Continue reading <span class=\"screen-reader-text\">What Is DMARC And How To Set It Up<\/span><\/a><\/p>\n","protected":false},"author":15,"featured_media":3412,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DMARC Setup Guide: What DMARC Is and How to Add It to DNS | Wyzard.ai<\/title>\n<meta name=\"description\" content=\"Learn what DMARC is, how it works with SPF\/DKIM, and how to publish a DMARC TXT record in DNS to protect your domain and improve 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