{"id":12527,"date":"2025-06-15T10:00:00","date_gmt":"2025-06-15T01:00:00","guid":{"rendered":"https:\/\/na-3.com\/wp_na-blog\/?p=12527"},"modified":"2025-06-16T15:43:38","modified_gmt":"2025-06-16T06:43:38","slug":"%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%aedmarc%e8%aa%8d%e8%a8%bc%e3%82%92%e8%a8%ad%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/na-3.com\/wp_na-blog\/2025\/06\/15\/%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%aedmarc%e8%aa%8d%e8%a8%bc%e3%82%92%e8%a8%ad%e5%ae%9a\/","title":{"rendered":"\u30e1\u30fc\u30eb\u306eDMARC\u8a8d\u8a3c\u3092\u8a2d\u5b9a"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"234\" height=\"300\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-234x300.png\" alt=\"DMARC\u8a8d\u8a3c\u304c\u672a\u5b9f\u65bd\" class=\"wp-image-12521\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-234x300.png 234w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image.png 442w\" sizes=\"auto, (max-width: 234px) 100vw, 234px\" \/><\/figure>\n<\/div>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\r\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\r\n<label for=\"ez-toc-cssicon-toggle-item-69d03462306d4\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" 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: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" 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href=\"https:\/\/na-3.com\/wp_na-blog\/2025\/06\/15\/%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%aedmarc%e8%aa%8d%e8%a8%bc%e3%82%92%e8%a8%ad%e5%ae%9a\/#Google%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A7%E7%A2%BA%E8%AA%8D\" >Google\u30e1\u30fc\u30eb\u3067\u78ba\u8a8d<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/na-3.com\/wp_na-blog\/2025\/06\/15\/%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%aedmarc%e8%aa%8d%e8%a8%bc%e3%82%92%e8%a8%ad%e5%ae%9a\/#%E3%83%84%E3%83%BC%E3%83%AB%E3%81%AB%E3%82%88%E3%82%8B%E3%83%81%E3%82%A7%E3%83%83%E3%82%AF\" >\u30c4\u30fc\u30eb\u306b\u3088\u308b\u30c1\u30a7\u30c3\u30af<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/na-3.com\/wp_na-blog\/2025\/06\/15\/%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%aedmarc%e8%aa%8d%e8%a8%bc%e3%82%92%e8%a8%ad%e5%ae%9a\/#%E3%83%AC%E3%83%9D%E3%83%BC%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB\" >\u30ec\u30dd\u30fc\u30c8\u30e1\u30fc\u30eb<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/na-3.com\/wp_na-blog\/2025\/06\/15\/%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%aedmarc%e8%aa%8d%e8%a8%bc%e3%82%92%e8%a8%ad%e5%ae%9a\/#%E3%81%8A%E3%82%8F%E3%82%8A%E3%81%AB\" >\u304a\u308f\u308a\u306b<\/a><\/li><\/ul><\/nav><\/div>\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%AF%E3%81%98%E3%82%81%E3%81%AB\"><\/span>\u306f\u3058\u3081\u306b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/na-3.com\/wp_na-blog\/2024\/10\/19\/%e3%83%a1%e3%83%bc%e3%83%ab%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%80%8cpmailserver2%e3%80%8d%e5%b0%8e%e5%85%a5%e3%83%a1%e3%83%a2\/#%EF%BC%92%EF%BC%8EGMail%E5%AE%9B%E3%81%A6%E3%81%AE%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E8%BF%BD%E5%8A%A0%E8%A8%AD%E5%AE%9A%E3%81%8C%E5%BF%85%E8%A6%81%E3%80%82%E6%9A%97%E5%8F%B7%E5%8C%96%E3%82%84SPF%E8%AA%8D%E8%A8%BC%E8%A8%AD%E5%AE%9A%E7%AD%89\" target=\"_blank\" rel=\"noopener\" title=\"\">SPF<\/a>\u3068<a href=\"https:\/\/na-3.com\/wp_na-blog\/2024\/11\/02\/pmailserver2%e3%81%abdkim%e7%bd%b2%e5%90%8d%e3%82%92%e8%a8%ad%e5%ae%9a\/\" target=\"_blank\" rel=\"noopener\" title=\"\">DKIM<\/a>\u306e\u8a2d\u5b9a\u306f\u5b8c\u4e86\u3057\u3066\u3044\u308b\u304c\uff0cDMARC\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u306a\u3044\u306e\u3067\uff0c\u30c9\u30b3\u30e2\u30b9\u30de\u30db\u5b9b\u3066\u30e1\u30fc\u30eb\u306b\u30ef\u30fc\u30cb\u30f3\u30b0\u304c\u8868\u793a\u3055\u308c\u308b\u3002\u6c17\u306b\u306a\u308b\u306e\u3067\uff0c\u3053\u308c\u3092\u8868\u793a\u3055\u305b\u306a\u3044\u3088\u3046\u306bDNS\u306bTXT\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%82%B9%E3%83%9E%E3%83%9B%E3%81%AE%E3%83%A1%E3%83%BC%E3%83%AB%E8%AA%8D%E8%A8%BC%E3%83%AF%E3%83%BC%E3%83%8B%E3%83%B3%E3%82%B0\"><\/span>\u30b9\u30de\u30db\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u30ef\u30fc\u30cb\u30f3\u30b0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u30b9\u30de\u30db\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u306bDMARC\u8a8d\u8a3c\u304c\u672a\u5b9f\u65bd\u3068\u8868\u793a\u3055\u308c\u308b\u3002(-_-;)\u6c57<\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image.png\"><img loading=\"lazy\" decoding=\"async\" width=\"234\" height=\"300\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-234x300.png\" alt=\"\" class=\"wp-image-12521\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-234x300.png 234w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image.png 442w\" sizes=\"auto, (max-width: 234px) 100vw, 234px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNS%E3%81%AB_dmarc%E3%82%92%E8%BF%BD%E5%8A%A0%E8%A8%AD%E5%AE%9A\"><\/span>DNS\u306b_dmarc\u3092\u8ffd\u52a0\u8a2d\u5b9a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u3068\u308a\u3042\u3048\u305a\u6700\u5c0f\u9650\u306e\u8a2d\u5b9a\u3067\u8a66\u3057\u3066\u307f\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"value-domain_%E3%81%AE%E8%A8%AD%E5%AE%9A%E4%BE%8B\"><\/span>value-domain \u306e\u8a2d\u5b9a\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u30db\u30b9\u30c8\u540d\u3000_dmarc<br>TXT v=DMARC1; p=none;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-6.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"98\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-6-1024x98.png\" alt=\"\" class=\"wp-image-12523\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-6-1024x98.png 1024w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-6-300x29.png 300w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-6-768x73.png 768w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-6.png 1373w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>value-domain \u306eDNS\u8a2d\u5b9a\u753b\u9762\u3078\u306e\u5165\u529b\u4f8b<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>txt _dmarc v=DMARC1; p=none; <\/code><\/pre><\/div>\n\n\n\n<p>value-domain ONE \u304b\u3089\u3082DNS\u8a2d\u5b9a\u53ef\u80fd\u3060\u304c\uff0c\u30ec\u30b3\u30fc\u30c9\u524a\u9664\u306b\u30d0\u30b0?\u3042\u308a<br><a href=\"https:\/\/one.value-domain.com\/panel\" target=\"_blank\" rel=\"noreferrer noopener\">One Panel (value-domain.com)<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"MyDNS_%E3%81%AE%E8%A8%AD%E5%AE%9A%E4%BE%8B\"><\/span>MyDNS \u306e\u8a2d\u5b9a\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u30db\u30b9\u30c8\u540d\u3000_dmarc<br>TXT v=DMARC1; p=none;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-5.png\"><img loading=\"lazy\" decoding=\"async\" width=\"873\" height=\"62\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-5.png\" alt=\"\" class=\"wp-image-12522\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-5.png 873w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-5-300x21.png 300w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-5-768x55.png 768w\" sizes=\"auto, (max-width: 873px) 100vw, 873px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%A8%AD%E5%AE%9A%E5%BE%8C%E3%81%AE%E7%A2%BA%E8%AA%8D\"><\/span>\u8a2d\u5b9a\u5f8c\u306e\u78ba\u8a8d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%83%84%E3%83%BC%E3%83%AB%E3%81%A7%E8%A8%AD%E5%AE%9A%E7%A2%BA%E8%AA%8D\"><\/span>\u30c4\u30fc\u30eb\u3067\u8a2d\u5b9a\u78ba\u8a8d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><a href=\"https:\/\/dmarcian.com\/dmarc-inspector\/\" target=\"_blank\" rel=\"noreferrer noopener\">DMARC\u30ec\u30b3\u30fc\u30c9\u30c1\u30a7\u30c3\u30ab\u30fc<\/a>\u3000\u304b\u3089\u30e1\u30fc\u30eb\u30c9\u30e1\u30a4\u30f3\u3092\u6307\u5b9a\u3057\u3066DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u691c\u67fb<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-7.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"448\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-7-1024x448.png\" alt=\"\" class=\"wp-image-12524\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-7-1024x448.png 1024w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-7-300x131.png 300w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-7-768x336.png 768w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-7.png 1199w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%90%84%E3%82%B9%E3%83%9E%E3%83%9B%E3%82%AD%E3%83%A3%E3%83%AA%E3%82%A2%E3%81%AE%E5%8F%97%E4%BF%A1%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A7%E7%A2%BA%E8%AA%8D\"><\/span>\u5404\u30b9\u30de\u30db\u30ad\u30e3\u30ea\u30a2\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u3067\u78ba\u8a8d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%83%89%E3%82%B3%E3%83%A2%E3%81%AE%E5%8F%97%E4%BF%A1%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A7%E7%A2%BA%E8%AA%8D\"><\/span>\u30c9\u30b3\u30e2\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u3067\u78ba\u8a8d<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/04\/image-17.png\"><img loading=\"lazy\" decoding=\"async\" width=\"263\" height=\"300\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/04\/image-17-263x300.png\" alt=\"\" class=\"wp-image-12525\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/04\/image-17-263x300.png 263w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/04\/image-17.png 719w\" sizes=\"auto, (max-width: 263px) 100vw, 263px\" \/><\/a><\/figure>\n\n\n\n<p>\u8a73\u7d30\u306a\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\uff08\u95a2\u9023\u629c\u7c8b\uff09<br> spf=<strong><mark style=\"background-color:#8ed1fc\" class=\"has-inline-color\">pass<\/mark><\/strong> smtp.mailfrom=\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb<br> dkim=<strong><mark style=\"background-color:#8ed1fc\" class=\"has-inline-color\">pass<\/mark><\/strong> header.d=\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb<br> dmarc=<strong><mark style=\"background-color:#8ed1fc\" class=\"has-inline-color\">pass<\/mark><\/strong> header.from=\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb\u30fb<br>3\u9805\u76ee\u3068\u3082pass\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"au%E3%81%AE%E5%8F%97%E4%BF%A1%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A7%E7%A2%BA%E8%AA%8D\"><\/span>au\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u3067\u78ba\u8a8d<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>auWeb\u30e1\u30fc\u30eb\u3067\u78ba\u8a8d<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"99\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-3-1024x99.png\" alt=\"\" class=\"wp-image-12551\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-3-1024x99.png 1024w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-3-300x29.png 300w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-3-768x74.png 768w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-3.png 1078w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.au.com\/mobile\/service\/attention\/spf-record\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/www.au.com\/mobile\/service\/attention\/spf-record<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Google%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A7%E7%A2%BA%E8%AA%8D\"><\/span>Google\u30e1\u30fc\u30eb\u3067\u78ba\u8a8d<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"180\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-2-300x180.png\" alt=\"\" class=\"wp-image-12549\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-2-300x180.png 300w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-2.png 742w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<p>\u6700\u5c0f\u9650\u306e\u8a2d\u5b9a\u3067\u30ef\u30fc\u30cb\u30f3\u30b0\u304c\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u3063\u305f\u306e\u3067\u8a2d\u5b9a\u306f\u554f\u984c\u306a\u3044\u3088\u3046\u3060\u3002\u4eca\u5f8c\u4e0b\u8a18\u306e\u3088\u3046\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u3059\u308b\u8a2d\u5b9a\u306b\u5909\u66f4\u3057\u3066\u3044\u304f\u3053\u3068\u306b\u3059\u308b\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>v=DMARC1; p=quarantine; rua=mailto:rua@example.com; ri=86400; ruf=mailto:ruf@example.com; fo=0; adkim=r; aspf=r; <\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%83%84%E3%83%BC%E3%83%AB%E3%81%AB%E3%82%88%E3%82%8B%E3%83%81%E3%82%A7%E3%83%83%E3%82%AF\"><\/span>\u30c4\u30fc\u30eb\u306b\u3088\u308b\u30c1\u30a7\u30c3\u30af<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><a href=\"https:\/\/mxtoolbox.com\/dmarc.aspx\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/mxtoolbox.com\/dmarc.aspx<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-4.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"551\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-4-1024x551.png\" alt=\"\" class=\"wp-image-12556\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-4-1024x551.png 1024w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-4-300x161.png 300w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-4-768x413.png 768w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-4-1536x826.png 1536w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-4.png 1847w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%83%AC%E3%83%9D%E3%83%BC%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB\"><\/span>\u30ec\u30dd\u30fc\u30c8\u30e1\u30fc\u30eb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>docomo\u304b\u3089\u306eDMARC\u30ec\u30dd\u30fc\u30c8\u30e1\u30fc\u30eb<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-9.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"150\" src=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-9-1024x150.png\" alt=\"\" class=\"wp-image-12585\" srcset=\"https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-9-1024x150.png 1024w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-9-300x44.png 300w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-9-768x112.png 768w, https:\/\/na-3.com\/wp_na-blog\/wp-content\/uploads\/2025\/06\/image-9.png 1226w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%8A%E3%82%8F%E3%82%8A%E3%81%AB\"><\/span>\u304a\u308f\u308a\u306b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u7279\u306b\u554f\u984c\u306a\u3044\u3088\u3046\u306a\u306e\u3067\uff0c\u3053\u306e\u8a2d\u5b9a\u3067\u3057\u3070\u3089\u304f\u904b\u7528\u3057\u3066\u3055\u3089\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u3057\u305f\u8a2d\u5b9a\u3092\u4eca\u5f8c\u691c\u8a0e\u3059\u308b\u3053\u3068\u3068\u3059\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b SPF\u3068DKIM\u306e\u8a2d\u5b9a\u306f\u5b8c\u4e86\u3057\u3066\u3044\u308b\u304c\uff0cDMARC <a class=\"more-link\" href=\"https:\/\/na-3.com\/wp_na-blog\/2025\/06\/15\/%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%aedmarc%e8%aa%8d%e8%a8%bc%e3%82%92%e8%a8%ad%e5%ae%9a\/\">\u7d9a\u304d\u3092\u8aad\u3080 &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":12521,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"ngg_post_thumbnail":0,"footnotes":""},"categories":[48,52],"tags":[719,720,575],"class_list":["post-12527","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","category-software","tag-dmarc","tag-dns","tag-575"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/posts\/12527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/comments?post=12527"}],"version-history":[{"count":21,"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/posts\/12527\/revisions"}],"predecessor-version":[{"id":12587,"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/posts\/12527\/revisions\/12587"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/media\/12521"}],"wp:attachment":[{"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/media?parent=12527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/categories?post=12527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/na-3.com\/wp_na-blog\/wp-json\/wp\/v2\/tags?post=12527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}