{"id":18566,"date":"2026-09-06T09:54:06","date_gmt":"2026-09-06T00:54:06","guid":{"rendered":"https:\/\/www.bigriver.jp\/?p=18566"},"modified":"2026-09-06T19:37:26","modified_gmt":"2026-09-06T10:37:26","slug":"wp-mail-smtp-%e3%81%ae-spf-%e3%82%a8%e3%83%a9%e3%83%bc-%e3%81%a8-dmarc-%e8%ad%a6%e5%91%8a%e3%81%ae%e8%a7%a3%e6%b6%88","status":"publish","type":"post","link":"https:\/\/www.bigriver.jp\/?p=18566","title":{"rendered":"WP Mail SMTP \u306e SPF \u30a8\u30e9\u30fc \u3068 DMARC \u8b66\u544a\u306e\u89e3\u6d88"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">WordPress \u74b0\u5883\u306b\u5c0e\u5165\u3057\u305f WP Mail SMTP \u3067\u767a\u751f\u3057\u3066\u3044\u305f SPF \u30a8\u30e9\u30fc\u3068 DMARC \u8b66\u544a\u3092\u89e3\u6d88\u3059\u308b\u8a71\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress \u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u898b\u305f\u3068\u3053\u308d<strong>\u201c\u30e1\u30fc\u30eb\u30c9\u30e1\u30a4\u30f3\u306e\u554f\u984c\u304c\u691c\u51fa\u3055\u308c\u307e\u3057\u305f\u201d<\/strong> \u3068\u8868\u793a\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u306e\u4e2d\u8eab\u306f\u4ee5\u4e0b\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u3000\u30bf\u30a4\u30c8\u30eb\u3068\u3057\u305f SPF \u306b\u95a2\u3059\u308b\u30a8\u30e9\u30fc\u3068DMARC\u306b\u95a2\u3059\u308b\u8b66\u544a\u3067\u3059\u3002\u3000\u3053\u306e\u30a8\u30e9\u30fc\u3068\u8b66\u544a\u3092\u89e3\u6d88\u3059\u308b\u5099\u5fd8\u30ed\u30b0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"350\" src=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image.png\" alt=\"\" class=\"wp-image-18567\" srcset=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image.png 740w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-300x142.png 300w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\"><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001DNS\u30b5\u30fc\u30d0\u306b\u306f Alibaba Cloud DNS \u3092\u5229\u7528\u3057\u3066\u304a\u308a\u3001Alibaba Cloud DNS \u3067\u306e\u30ec\u30b3\u30fc\u30c9\u78ba\u8a8d\u3084\u8ffd\u52a0\u306e\u753b\u9762\u306a\u3069\u3082\u4e00\u90e8\u8a18\u8f09\u3059\u308b\u306e\u3067 Alibaba Cloud DNS \u306e\u5229\u7528\u30a4\u30e1\u30fc\u30b8\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306b\u3082\u591a\u5c11\u6709\u7528\u306a\u60c5\u5831\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a9d491be336f\" 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\" 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><\/label><input type=\"checkbox\" style='display:none' id=\"ez-toc-cssicon-toggle-item-6a9d491be336f\"  aria-label=\"Toggle\" \/><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:\/\/www.bigriver.jp\/?p=18566\/#%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%8C%E4%BD%95%E3%82%92%E7%A4%BA%E3%81%99%E3%81%8B%EF%BC%9F\" >\u30a8\u30e9\u30fc\u304c\u4f55\u3092\u793a\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.bigriver.jp\/?p=18566\/#%E7%8F%BE%E7%8A%B6%E3%81%AEDNS%E3%83%AC%E3%82%B3%E3%83%BC%E3%83%89%E3%82%92%E7%A2%BA%E8%AA%8D%E3%81%99%E3%82%8B\" >\u73fe\u72b6\u306eDNS\u30ec\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.bigriver.jp\/?p=18566\/#SPF%E3%83%AC%E3%82%B3%E3%83%BC%E3%83%89%E3%81%AE%E5%95%8F%E9%A1%8C%E3%82%92%E8%A7%A3%E6%B1%BA%E3%81%99%E3%82%8B\" >SPF\u30ec\u30b3\u30fc\u30c9\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.bigriver.jp\/?p=18566\/#DMARC%E3%81%AE%E5%95%8F%E9%A1%8C%E3%82%92%E8%A7%A3%E6%B1%BA%E3%81%99%E3%82%8B\" >DMARC\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.bigriver.jp\/?p=18566\/#%E3%81%BE%E3%81%A8%E3%82%81\" >\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-0\"><span class=\"ez-toc-section\" id=\"%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%8C%E4%BD%95%E3%82%92%E7%A4%BA%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span><span class=\"sgb-heading__inner sgb-heading--type2\" style=\"background-color:var(--sgb-main-color);border-color:transparent;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#FFF\">\u30a8\u30e9\u30fc\u304c\u4f55\u3092\u793a\u3059\u304b\uff1f<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a8\u30e9\u30fc\u3068\u8b66\u544a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u539f\u6587\u306f\u4ee5\u4e0b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>SPF\n<ul class=\"wp-block-list is-style-sango-list-main-color\">\n<li><strong>Action Needed:<\/strong> It doesn\u2019t look like the SPF record required by your SMTP server has been added to your domain. Please contact your SMTP server provider for details on how to find the SPF record, and how to add this record to your domain\u2019s DNS.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>DMARC\n<ul class=\"wp-block-list is-style-sango-list-main-color\">\n<li><strong>Action Recommended:<\/strong> It doesn\u2019t look like DMARC has been set up on your domain (bigriver.jp). We recommend using the DMARC protocol because it helps protect your domain from unauthorized use. Please check out this step-by-step guide for details on how to add the DMARC record to your domain\u2019s DNS.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u79c1\u306e\u30c9\u30e1\u30a4\u30f3\uff08<code>bigriver.jp<\/code>\uff09\u306eDNS\u8a2d\u5b9a\u306b\u4ee5\u4e0b\u306e\u554f\u984c\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list is-style-sango-list-main-color\">\n<li><strong>SPF\u30a8\u30e9\u30fc\uff08Action Needed\uff09\uff1a<\/strong> WP Mail SMTP\u7d4c\u7531\u3067\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u304c\u3001\u300c\u3053\u306e\u30c9\u30e1\u30a4\u30f3\uff08<code>bigriver.jp<\/code>\uff09\u304b\u3089\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u8a31\u53ef\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u300d\u3068\u3057\u3066DNS\u306eSPF\u30ec\u30b3\u30fc\u30c9\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u3053\u306e\u307e\u307e\u3060\u3068\u3001\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u5074\u3067\u8ff7\u60d1\u30e1\u30fc\u30eb\uff08\u30b9\u30d1\u30e0\uff09\u6271\u3044\u3055\u308c\u305f\u308a\u3001\u4e0d\u9054\uff08\u30d0\u30a6\u30f3\u30b9\uff09\u306b\u306a\u308b\u30ea\u30b9\u30af\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>DMARC\u8b66\u544a\uff08Action Recommended\uff09\uff1a<\/strong> \u30c9\u30e1\u30a4\u30f3\u306bDMARC\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002DMARC\u306f\u3001\u6210\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u691c\u77e5\u3084\u3001SPF\/DKIM\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u6271\u3044\uff08\u76e3\u8996\u30fb\u9694\u96e2\u30fb\u62d2\u5426\uff09\u3092\u6307\u5b9a\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u8a2d\u5b9a\u304c\u306a\u304f\u3066\u3082\u9001\u4fe1\u81ea\u4f53\u306f\u3067\u304d\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4e3b\u8981\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\uff08Gmail\u3084Yahoo!\u7b49\uff09\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u304a\u3044\u3066\u8a2d\u5b9a\u304c\u5f37\u304f\u63a8\u5968\u30fb\u7fa9\u52d9\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u79c1\u306e\u30c9\u30e1\u30a4\u30f3\uff08<code>bigriver.jp<\/code>\uff09\u306f\u3053\u306e\u30d6\u30ed\u30b0\u30b5\u30a4\u30c8\u306eA\u30ec\u30b3\u30fc\u30c9\u3067\u3082\u4f7f\u3063\u3066\u3044\u307e\u3059\u304c\u3001Google Workspace \u306e\u30e1\u30fc\u30eb\u3068 Exchange Online \u306e\u30e1\u30fc\u30eb\u3067\u3082\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3000Google \u3068 Microsoft \u306e\u30e1\u30fc\u30eb\u306f\u899a\u3048\u3066\u3044\u306a\u3044\u304f\u3089\u3044\u3001\u304a\u305d\u3089\u304f6\uff5e7\u5e74\u524d\u304b\u3089\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u5f53\u6642SPF\u306f\u8a2d\u5b9a\u3057\u305f\u8a18\u61b6\u306f\u3042\u308a\u3064\u3064\u3001DMARC\u306f\u5916\u90e8\u3078\u306e\u9001\u4fe1\u306f\u307b\u3068\u3093\u3069\u7121\u3044\u305f\u3081\u8a2d\u5b9a\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u8a18\u61b6\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u56de\u306f\u3001\u73fe\u72b6\u3069\u3046\u306a\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3001\u5fc5\u8981\u306a\u5bfe\u5fdc\u3092\u884c\u3046\u3053\u3068\u306b\u3057\u307e\u3059\u3002 DMARC \u3082\u5fc5\u9808\u3067\u306f\u7121\u3044\u3067\u3059\u304c\u4e00\u3064\u306e\u7d4c\u9a13\u3068\u3057\u3066\u4eca\u56de\u8a2d\u5b9a\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-1\"><span class=\"ez-toc-section\" id=\"%E7%8F%BE%E7%8A%B6%E3%81%AEDNS%E3%83%AC%E3%82%B3%E3%83%BC%E3%83%89%E3%82%92%E7%A2%BA%E8%AA%8D%E3%81%99%E3%82%8B\"><\/span><span class=\"sgb-heading__inner sgb-heading--type2\" style=\"background-color:var(--sgb-main-color);border-color:transparent;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#FFF\">\u73fe\u72b6\u306eDNS\u30ec\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u524d\u306b\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3084\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u73fe\u5728\u306eDNS\u30ec\u30b3\u30fc\u30c9\uff08TXT\u30ec\u30b3\u30fc\u30c9\uff09\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>Windows \u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8<\/span><pre><code>c:\\temp&gt;<strong>nslookup -type=TXT bigriver.jp<\/strong>\n\u30b5\u30fc\u30d0\u30fc:  UnKnown\nAddress:  192.168.3.1\n\n\u6a29\u9650\u306e\u306a\u3044\u56de\u7b54:\nbigriver.jp     text =\n\n        \"bn1df7chl3ckvxdsfvznmpfjpqnwps37\"\nbigriver.jp     text =\n\n        \"_globalsign-domain-verification=2JlaIfCwIXaSXt579ZuRALeGLIQQRbRRKXIXJSMakL\"\nbigriver.jp     text =\n\n        \"_38b10ak8wh8n76ks5drjo1ntomc2xmc\"\nbigriver.jp     text =\n\n        \"q98pv4ctn9vh0kgz80qcrdxmbnmt7jhs\"\nbigriver.jp     text =\n\n        \"rd4m8slzxymw3x3dndpm2trn9t8ms6z8\"\nbigriver.jp     text =\n\n        \"aliyun-site-verification=208cc20c-89e5-4e45-a738-662ad4955bf0\"\n\n\n\nc:\\temp&gt;<strong>nslookup -type=TXT m.bigriver.jp<\/strong>\n\u30b5\u30fc\u30d0\u30fc:  UnKnown\nAddress:  192.168.3.1\n\n\u6a29\u9650\u306e\u306a\u3044\u56de\u7b54:\nm.bigriver.jp   text =\n\n        \"v=spf1 include:spf.protection.outlook.com -all\"\n<\/code><\/pre><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u884c\u7d50\u679c\u304b\u3089\u3001<code>v=spf1 ...<\/code> \u3067\u59cb\u307e\u308b\u884c\u304c\u3042\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3000 Google Workspace \u3067\u4f7f\u3063\u3066\u3044\u308b\u201dbigriver.jp\u201d\u30c9\u30e1\u30a4\u30f3\u306eSPF\u30ec\u30b3\u30fc\u30c9\u304c\u3042\u308a\u307e\u305b\u3093\u306d\u30fb\u30fb\u3002\u3000 Exchange Online \u3067\u5229\u7528\u3057\u3066\u3044\u308b\u201dm.bigriver.jp\u201d\u306f\u3061\u3083\u3093\u3068SPF\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u6614\u306e\u3053\u3068\u306a\u306e\u3067\u8a2d\u5b9a\u6f0f\u308c\u306a\u306e\u304b\u610f\u56f3\u7684\u306a\u306e\u304b\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002\u3000\u3061\u3087\u3046\u3069\u4eca\u56de\u305d\u308c\u304c\u308f\u304b\u3063\u3066\u826f\u304b\u3063\u305f\u3068\u8a00\u3046\u3053\u3068\u3067\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-2\"><span class=\"ez-toc-section\" id=\"SPF%E3%83%AC%E3%82%B3%E3%83%BC%E3%83%89%E3%81%AE%E5%95%8F%E9%A1%8C%E3%82%92%E8%A7%A3%E6%B1%BA%E3%81%99%E3%82%8B\"><\/span><span class=\"sgb-heading__inner sgb-heading--type2\" style=\"background-color:var(--sgb-main-color);border-color:transparent;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#FFF\">SPF\u30ec\u30b3\u30fc\u30c9\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WP Mail SMTP\u3067Google Workspace\uff08<code>xxxx@bigriver.jp<\/code>\uff09\u306eAPI\u3084SMTP\u7d4c\u7531\u3067\u9001\u4fe1\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u30c9\u30e1\u30a4\u30f3 <code>bigriver.jp<\/code> \u306bGoogle\u7528\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002  <\/p>\n\n\n<div id=\"id-79f883e4-fe0e-453a-9d35-6dd0a5a4f0af\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9805\u76ee<\/th><th>\u8a2d\u5b9a\u5024<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7<\/strong><\/td><td>TXT<\/td><\/tr><tr><td><strong>\u30db\u30b9\u30c8\u540d\uff08\u540d\u524d\uff09<\/strong><\/td><td><code>bigriver.jp<\/code> \uff08\u307e\u305f\u306f <code>@<\/code> \/ \u7a7a\u6b04\uff09<\/td><\/tr><tr><td><strong>\u5024\uff08\u5185\u5bb9\uff09<\/strong><\/td><td><code>v=spf1 include:_spf.google.com ~all<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u304b\u3089\u306f\u79c1\u304c\u5229\u7528\u3057\u3066\u3044\u308bDNS Server \u306f Alibaba Cloud DNS \u306a\u306e\u3067 Alibaba Cloud \u306e\u30b3\u30f3\u30bd\u30fc\u30eb\u304b\u3089\u64cd\u4f5c\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alibaba Cloud DNS &gt; Configurations &gt; Public Zone \u753b\u9762\u304b\u3089bigriver.jp \u30be\u30fc\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-sango-with-big-shadow\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"463\" src=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-1-1024x463.png\" alt=\"\" class=\"wp-image-18568\" srcset=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-1-1024x463.png 1024w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-1-300x136.png 300w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-1-768x347.png 768w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-1-938x424.png 938w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-1.png 1367w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cAdd Record\u201d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-sango-with-big-shadow\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"411\" src=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-2-1024x411.png\" alt=\"\" class=\"wp-image-18569\" srcset=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-2-1024x411.png 1024w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-2-300x120.png 300w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-2-767x308.png 767w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-2-939x377.png 939w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-2.png 1136w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Record Type \u306b\u306f\u201dTXT\u201d\u3092\u6307\u5b9a\u3057\u3001Hostname\u306b\u306f\u201d@\u201d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002 TTL\u306f\u7279\u306b\u3053\u306e\u5024\u306b\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u8981\u4ef6\u3001\u6761\u4ef6\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001Alibaba Cloud DNS \u306e\u58f2\u308a\u306e1\u3064\u306a\u306e\u30671\u79d2\u306b\u3057\u307e\u3059\u3002\u3000\u6700\u5f8c\u306bRecord Value \u3068\u3057\u3066\u201d<code>v=spf1 include:_spf.google.com ~all<\/code>\u201c\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-sango-with-big-shadow\"><img loading=\"lazy\" decoding=\"async\" width=\"807\" height=\"686\" src=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-3.png\" alt=\"\" class=\"wp-image-18570\" srcset=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-3.png 807w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-3-300x255.png 300w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-3-767x652.png 767w\" sizes=\"auto, (max-width: 807px) 100vw, 807px\"><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ffd\u52a0\u5f8c\u306b\u3001\u518d\u5ea6\u3001DNS\u30ec\u30b3\u30fc\u30c9\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3000\u5148\u307b\u3069\u767b\u9332\u3057\u305f\u201dv=spf1 include:_spf.google.com ~all\u201d\u306e\u5fdc\u7b54\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>Windows \u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8<\/span><pre><code>c:\\temp&gt;<strong>nslookup -type=TXT bigriver.jp<\/strong>\n\u30b5\u30fc\u30d0\u30fc:  UnKnown\nAddress:  192.168.3.1\n\n\u6a29\u9650\u306e\u306a\u3044\u56de\u7b54:\n\n\uff5e\u7701\u7565\uff5e\n\nbigriver.jp     text =\n\n        \"v=spf1 include:_spf.google.com ~all\"\n\n\uff5e\u7701\u7565\uff5e<\/code><\/pre><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress \u3067\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3000\u201d<strong>Success<\/strong>! The SPF record required by your SMTP server is set up and working correctly.\u201d\u3068\u30b9\u30c6\u30fc\u30bf\u30b9\u304c\u6b63\u5e38\u5316\u3057\u305f\u3053\u3068\u3092\u78ba\u8a8d\u51fa\u6765\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"742\" height=\"327\" src=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-4.png\" alt=\"\" class=\"wp-image-18571\" srcset=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-4.png 742w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-4-300x132.png 300w\" sizes=\"auto, (max-width: 742px) 100vw, 742px\"><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306b\u3001Google Workspace \u3068\u3057\u3066\u5916\u90e8\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u30e1\u30fc\u30eb\u9001\u53d7\u4fe1\u306b\u554f\u984c\u304c\u7121\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3000\u3053\u3053\u3067\u4eca\u56de\u306eSPF\u672a\u8a2d\u5b9a\u3068\u306f\u5168\u304f\u5225\u306e\u554f\u984c\u306b\u6c17\u3065\u304d\u307e\u3057\u305f\u3002\u3000\u305d\u306e\u8a71\u306f\u307e\u305f\u5225\u9014\u3002\u3000\u6700\u7d42\u7684\u306bSPF\u30ec\u30b3\u30fc\u30c9\u8ffd\u52a0\u5f8c\u3082\u30e1\u30fc\u30eb\u9001\u53d7\u4fe1\u306f\u6b63\u3057\u304f\u884c\u3048\u308b\u3053\u3068\u3092\u78ba\u8a8d\u51fa\u6765\u307e\u3057\u305f\u3002\u3000\u6b21\u306fDMARC\u306e\u8b66\u544a\u3092\u89e3\u6d88\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-3\"><span class=\"ez-toc-section\" id=\"DMARC%E3%81%AE%E5%95%8F%E9%A1%8C%E3%82%92%E8%A7%A3%E6%B1%BA%E3%81%99%E3%82%8B\"><\/span><span class=\"sgb-heading__inner sgb-heading--type2\" style=\"background-color:var(--sgb-main-color);border-color:transparent;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#FFF\">DMARC\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-sgb-headings sgb-heading\"><span class=\"sgb-heading__inner sgb-heading--type1 with-icon\" style=\"background-color:transparent;border-color:transparent;font-size:1.2em\"><i class=\"fa fa-check\" style=\"color:var(--wp--preset--color--sango-main)\"><\/i><span class=\"sgb-heading__text\" style=\"color:#333\">DMARC\uff08\u30c7\u30a3\u30fc\u30de\u30fc\u30af\uff09\u3068\u306f\uff1f<\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SPF\u3084DKIM\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u884c\u3063\u305f\u3046\u3048\u3067\u3001<strong>\u300c\u3082\u3057\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u305f\u5834\u5408\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\uff08Gmail\u3084Yahoo!\u306a\u3069\uff09\u306b\u3069\u3046\u51e6\u7406\u3057\u3066\u307b\u3057\u3044\u304b\u300d\u3092\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u304c\u5ba3\u8a00\u3059\u308b\u4ed5\u7d44\u307f<\/strong>\u304cDMARC\uff08Domain-based Message Authentication, Reporting, and Conformance\uff09\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WP Mail SMTP\u306e\u8b66\u544a\u753b\u9762\u3067\u8868\u793a\u3055\u308c\u3066\u3044\u305f\u300cAction Recommended\u300d\u306f\u3001<code>bigriver.jp<\/code> \u306bDMARC\u30ec\u30b3\u30fc\u30c9\u304c\u672a\u8a2d\u5b9a\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DMARC\u30dd\u30ea\u30b7\u30fc\u306b\u306f\u4ee5\u4e0b\u306e3\u6bb5\u968e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list is-style-sango-list-main-color\">\n<li><strong><code>p=none<\/code>\uff08\u76e3\u8996\u30e2\u30fc\u30c9\uff09\uff1a<\/strong> \u8a8d\u8a3c\u5931\u6557\u30e1\u30fc\u30eb\u3082\u62d2\u5426\u305b\u305a\u901a\u5e38\u901a\u308a\u914d\u4fe1\u3057\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u307f\u53d7\u3051\u53d6\u308b\uff08\u2605\u6700\u521d\u306f\u3053\u308c\u304b\u3089\u59cb\u3081\u308b\u306e\u304c\u63a8\u5968\u3067\u3059\uff09\u3002<\/li>\n\n\n\n<li><strong><code>p=quarantine<\/code>\uff08\u9694\u96e2\uff09\uff1a<\/strong> \u8a8d\u8a3c\u5931\u6557\u30e1\u30fc\u30eb\u3092\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u9694\u96e2\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong><code>p=reject<\/code>\uff08\u62d2\u5426\uff09\uff1a<\/strong> \u8a8d\u8a3c\u5931\u6557\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u62d2\u5426\uff08\u30d0\u30a6\u30f3\u30b9\uff09\u3059\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u56de\u306f\u3001\u65e2\u5b58\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u306a\u3044\u300c\u76e3\u8996\u30e2\u30fc\u30c9\uff08<code>p=none<\/code>\uff09\u300d\u3067DMARC\u3092\u521d\u3081\u3066\u5c0e\u5165\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-sgb-headings sgb-heading\"><span class=\"sgb-heading__inner sgb-heading--type1 with-icon\" style=\"background-color:transparent;border-color:transparent;font-size:1.2em\"><i class=\"fa fa-check\" style=\"color:var(--wp--preset--color--sango-main)\"><\/i><span class=\"sgb-heading__text\" style=\"color:#333\">DNS\u3078\u306e\u8a2d\u5b9a\u624b\u9806<\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DNS\u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u3001\u4ee5\u4e0b\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n<div id=\"id-c0ec6e08-f364-4898-985d-1f89e97cc52f\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9805\u76ee<\/th><th>\u8a2d\u5b9a\u5024<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7<\/strong><\/td><td><code>TXT<\/code><\/td><td>\u30ec\u30b3\u30fc\u30c9\u306e\u7a2e\u985e<\/td><\/tr><tr><td><strong>\u30db\u30b9\u30c8\u540d\uff08\u540d\u524d\uff09<\/strong><\/td><td><code>_dmarc.bigriver.jp<\/code> \uff08\u307e\u305f\u306f <code>_dmarc<\/code>\uff09<\/td><td>DNS\u4e8b\u696d\u8005\u306b\u3088\u3063\u3066\u672b\u5c3e\u306e\u30c9\u30e1\u30a4\u30f3\u5165\u529b\u304c\u4e0d\u8981\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059<br><strong>Alibaba Cloud DNS \u3067\u306f \u201c_dmarc\u201d\u3060\u3051\u3092\u8a2d\u5b9a\u3057\u307e\u3059<\/strong><\/td><\/tr><tr><td><strong>\u5024\uff08\u5185\u5bb9\uff09<\/strong><\/td><td><code>v=DMARC1; p=none;<\/code><\/td><td>DMARC\u30d0\u30fc\u30b8\u30e7\u30f31\u3001\u30dd\u30ea\u30b7\u30fc\u306f\u76e3\u8996\uff08none\uff09\u3092\u6307\u5b9a<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">DMARC\u306e\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\uff08\u8a8d\u8a3c\u72b6\u6cc1\u306e\u7d71\u8a08\u60c5\u5831\uff09\u3092\u81ea\u5206\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u53d7\u3051\u53d6\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b <code>rua<\/code> \u30bf\u30b0\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>DNS\u30ec\u30b3\u30fc\u30c9<\/span><pre><code>v=DMARC1; p=none; rua=mailto:xxxx@bigriver.jp;<\/code><\/pre><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Alibaba Cloud DNS \u304b\u3089DMARC\u7528\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-sango-with-big-shadow\"><img loading=\"lazy\" decoding=\"async\" width=\"795\" height=\"682\" src=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-5.png\" alt=\"\" class=\"wp-image-18573\" srcset=\"https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-5.png 795w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-5-300x257.png 300w, https:\/\/www.bigriver.jp\/wp-content\/uploads\/2026\/09\/image-5-767x658.png 767w\" sizes=\"auto, (max-width: 795px) 100vw, 795px\"><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">nslookup\u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3000\u3000\u60f3\u5b9a\u901a\u308a\u306e\u5fdc\u7b54\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>Windows \u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8<\/span><pre><code>c:\\temp&gt;<strong>nslookup -type=TXT _dmarc.bigriver.jp<\/strong>\n\u30b5\u30fc\u30d0\u30fc:  UnKnown\nAddress:  192.168.3.1\n\n\u6a29\u9650\u306e\u306a\u3044\u56de\u7b54:\n_dmarc.bigriver.jp      text =\n\n        \"v=DMARC1; p=none; rua=mailto:xxxxxxxxxx@bigriver.jp;\"\n<\/code><\/pre><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3061\u306a\u307f\u306b\u201d_dmarc.bigriver.jp\u201d\u3067\u306f\u306a\u304f\u201d_dmarc\u201d\u3060\u3051\u3067\u306f\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>Windows \u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8<\/span><pre><code>c:\\temp&gt;<strong>nslookup -type=TXT _dmarc<\/strong>\n\u30b5\u30fc\u30d0\u30fc:  UnKnown\nAddress:  192.168.3.1\n\n*** UnKnown \u304c _dmarc \u3092\u898b\u3064\u3051\u3089\u308c\u307e\u305b\u3093: Non-existent domain<\/code><\/pre><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Alibaba Cloud DNS \u306eTXT\u30ec\u30b3\u30fc\u30c9\u3067\u306fhostname \u3068\u3057\u3066\u201d_dmarc\u201d\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u304c\u3001Alibaba Cloud DNS \u5074\u3067\u306f\u201d_dmarc.bigriver.jp\u201d\u3068\u88dc\u5b8c\u3059\u308b\u52d5\u4f5c\u3068\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002\u3000<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alibaba Cloud DNS \u3067DMARC\u3092\u8a2d\u5b9a\u3059\u308b\u8003\u3048\u65b9\u3001\u5177\u4f53\u7684\u306a\u5185\u5bb9\u306b\u95a2\u3059\u308b\u516c\u958b\u60c5\u5831\u306f\u3053\u3061\u3089<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.alibabacloud.com\/help\/en\/alibaba-mail\/latest\/what-is-dmarc-how-do-i-set-it-up\">https:\/\/www.alibabacloud.com\/help\/en\/alibaba-mail\/latest\/what-is-dmarc-how-do-i-set-it-up<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8a18\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u3082hostname \u3068\u3057\u3066\u201d_dmarc\u201d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u306e\u7ba1\u7406\u753b\u9762\u3067\u3082\u78ba\u8a8d\u3057\u3001DMARC\u306b\u95a2\u3059\u308b\u8b66\u544a\u304c\u89e3\u6d88\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306b\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u3068\u53d7\u4fe1\u306b\u554f\u984c\u304c\u7121\u3044\u3053\u3068\u3082\u78ba\u8a8d\u3057\u3001DMARC\u306e\u8b66\u544a\u306e\u89e3\u6d88\u306f\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-4\"><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span><span class=\"sgb-heading__inner sgb-heading--type2\" style=\"background-color:var(--sgb-main-color);border-color:transparent;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#FFF\">\u307e\u3068\u3081<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306bWordPress \u00d7 Google Workspace \u00d7 Exchange Online \u306e\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u69cb\u6210\u3060\u304b\u3089\u3053\u305d\u5f97\u3089\u308c\u305f\u77e5\u898b\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-sgb-headings sgb-heading\"><span class=\"sgb-heading__inner sgb-heading--type1 with-icon\" style=\"background-color:transparent;border-color:transparent;font-size:1.2em\"><i class=\"fa fa-check\" style=\"color:var(--wp--preset--color--sango-main)\"><\/i><span class=\"sgb-heading__text\" style=\"color:#333\">1. WP Mail SMTP \u5c0e\u5165\u306b\u4f34\u3046\u5bfe\u5fdc\u3068 SPF \u306e\u72ec\u7acb\u904b\u7528<\/span><\/span><\/p>\n\n\n\n<ul class=\"wp-block-list is-style-sango-list-main-color\">\n<li><strong>\u5bfe\u5fdc\u3057\u305f\u3053\u3068\uff1a<\/strong> WP Mail SMTP \u3067\u9001\u4fe1\u30ea\u30ec\u30fc\u3068\u3057\u3066\u6307\u5b9a\u3057\u305f Google Workspace\uff08<code>postwater9@bigriver.jp<\/code>\uff09\u5411\u3051\u306b\u3001\u89aa\u30c9\u30e1\u30a4\u30f3\uff08<code>bigriver.jp<\/code>\uff09\u3078 Google \u7528\u306e SPF \u30ec\u30b3\u30fc\u30c9\uff08<code>v=spf1 include:_spf.google.com ~all<\/code>\uff09\u3092\u65b0\u898f\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002<\/li>\n\n\n\n<li><strong>\u6c17\u3065\u304d\uff1a<\/strong> WP Mail SMTP\u3068\u306f\u76f4\u63a5\u95a2\u4fc2\u3057\u306a\u3044\u8a71\u3067\u3059\u304c\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\uff08<code>m.bigriver.jp<\/code>\uff09\u3067\u5229\u7528\u3057\u3066\u3044\u308b Exchange Online \u5074\uff08<code>include:spf.protection.outlook.com<\/code>\uff09\u306e SPF \u3068\u306f FQDN \u3054\u3068\u306b\u72ec\u7acb\u3057\u3066\u7ba1\u7406\u3059\u308b\u305f\u3081\u3001\u89aa\u30c9\u30e1\u30a4\u30f3\u5074\u306b \u30b5\u30d6\u30c9\u30e1\u30a4\u30f3 \u306e\u305f\u3081\u306eSPF\u8a18\u8ff0\u3092\u6df7\u305c\u308b\u5fc5\u8981\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u30fb\u6574\u7406\u3067\u304d\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-sgb-headings sgb-heading\"><span class=\"sgb-heading__inner sgb-heading--type1 with-icon\" style=\"background-color:transparent;border-color:transparent;font-size:1.2em\"><i class=\"fa fa-check\" style=\"color:var(--wp--preset--color--sango-main)\"><\/i><span class=\"sgb-heading__text\" style=\"color:#333\">2. \u521d\u3081\u3066\u306e DMARC \u5c0e\u5165\uff08<code>p=none<\/code>\uff09<\/span><\/span><\/p>\n\n\n\n<ul class=\"wp-block-list is-style-sango-list-main-color\">\n<li><strong>\u5bfe\u5fdc\u3057\u305f\u3053\u3068\uff1a<\/strong> \u89aa\u30c9\u30e1\u30a4\u30f3\uff08<code>_dmarc.bigriver.jp<\/code>\uff09\u306b <code>v=DMARC1; p=none;<\/code> \u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002<\/li>\n\n\n\n<li><strong>\u6c17\u3065\u304d\uff1a<\/strong> \u89aa\u30c9\u30e1\u30a4\u30f3\u306b DMARC \u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u3060\u3051\u3067\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\uff08<code>m.bigriver.jp<\/code>\uff09\u3082\u542b\u3081\u3066\u30c9\u30e1\u30a4\u30f3\u5168\u4f53\u306b\u30dd\u30ea\u30b7\u30fc\u304c\u9069\u7528\u3055\u308c\u3001\u6210\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306e\u7b2c\u4e00\u6b69\u3092\u8e0f\u307f\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u307e\u305a\u306f\u65e2\u5b58\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u963b\u5bb3\u3057\u306a\u3044\u300c\u76e3\u8996\u30e2\u30fc\u30c9\uff08<code>p=none<\/code>\uff09\u300d\u304b\u3089\u5b89\u5168\u306b\u958b\u59cb\u3059\u308b\u306e\u304c\u9244\u5247\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>WordPress \u74b0\u5883\u306b\u5c0e\u5165\u3057\u305f WP Mail SMTP \u3067\u767a\u751f\u3057\u3066\u3044\u305f SPF \u30a8\u30e9\u30fc\u3068 DMARC \u8b66\u544a\u3092\u89e3\u6d88\u3059\u308b\u8a71\u3067\u3059\u3002 WordPress \u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u898b\u305f\u3068\u3053\u308d\u201c\u30e1\u30fc\u30eb\u30c9\u30e1\u30a4\u30f3\u306e\u554f &#8230; <\/p>\n","protected":false},"author":1,"featured_media":18567,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,9],"tags":[],"class_list":["post-18566","post","type-post","status-publish","format-standard","has-post-thumbnail","category-alibaba-cloud","category-dns","entry"],"views":23,"_links":{"self":[{"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=\/wp\/v2\/posts\/18566","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18566"}],"version-history":[{"count":8,"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=\/wp\/v2\/posts\/18566\/revisions"}],"predecessor-version":[{"id":18584,"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=\/wp\/v2\/posts\/18566\/revisions\/18584"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=\/wp\/v2\/media\/18567"}],"wp:attachment":[{"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bigriver.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}