{"id":178,"date":"2024-02-15T16:33:08","date_gmt":"2024-02-15T07:33:08","guid":{"rendered":"https:\/\/kigyodx.com\/server\/?p=178"},"modified":"2026-03-05T05:16:49","modified_gmt":"2026-03-04T20:16:49","slug":"dmarc","status":"publish","type":"post","link":"https:\/\/kigyodx.com\/server\/dmarc\/","title":{"rendered":"DMARC\u3068\u306f DMARC\u306e\u4ed5\u7d44\u307f\u3068\u8a2d\u5b9a\u65b9\u6cd5"},"content":{"rendered":"\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-553a78f1 wp-block-group-is-layout-constrained\" style=\"background-color:#f0f7ff;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\"><p style=\"font-weight:700\">\ud83d\udccb \u3053\u306e\u8a18\u4e8b\u3067\u308f\u304b\u308b\u3053\u3068<\/p><ul class=\"wp-block-list\"><li>DMARC\u306e\u4ed5\u7d44\u307f\u3068SPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2<\/li><li>DMARC\u30dd\u30ea\u30b7\u30fc\uff08None\u30fbQuarantine\u30fbReject\uff09\u306e\u9055\u3044\u3068\u9069\u7528\u65b9\u6cd5<\/li><li>DMARC\u3092\u5c0e\u5165\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u3068\u624b\u9806<\/li><li>\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u306eDMARC\u5bfe\u5fdc\u78ba\u8a8d\u65b9\u6cd5<\/li><\/ul><\/div>\n\n\n\n<p>DMARC\uff08Domain-based Message Authentication, Reporting &amp; Conformance\uff09\u306f\u3001\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306e\u6700\u7d42\u9632\u885b\u30e9\u30a4\u30f3\u3067\u3059\u3002SPF\u3068DKIM\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u30fb\u9694\u96e2\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u304b\u3089\u7d44\u7e54\u3092\u5b88\u308a\u307e\u3059\u3002\uff082026\u5e743\u6708\u6700\u7d42\u66f4\u65b0\uff09<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DMARC\uff08Domain-based Message Authentication Reporting &amp; Conformance\uff09\u3068\u306f<\/h2>\n\n\n\n<p>DMARC\u3068\u306f\u3001E\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u304c\u672c\u7269\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u3067\u3059\u3002\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u306a\u3069\u306e\u88ab\u5bb3\u3092\u9632\u3050\u305f\u3081\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001SPF\u3068DKIM\u3068\u3044\u3046\u65e2\u5b58\u306e\u6280\u8853\u3092\u5229\u7528\u3057\u3066\u3001E\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u304c\u507d\u88c5\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306f\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u3092DNS\u306b\u516c\u958b\u3057\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>DMARC\u306e\u91cd\u8981\u6027\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u70b9\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"is-style-sango-list-circle wp-block-list\">\n<li><strong>\u9001\u4fe1\u8005\u306e\u78ba\u8a8d<\/strong><br>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u9001\u4fe1\u5143\u304c\u672c\u7269\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30dd\u30ea\u30b7\u30fc\u8a2d\u5b9a<\/strong><br>\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6271\u3044\u65b9\u3092\u660e\u78ba\u306b\u8a2d\u5b9a\u3067\u304d\u3001\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u306b\u5bfe\u3057\u3066\u5bfe\u51e6\u65b9\u6cd5\u3092\u6307\u793a\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u8105\u5a01\u628a\u63e1<\/strong><br>\u7d44\u7e54\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u60aa\u7528\u3057\u305f\u8105\u5a01\u3092\u628a\u63e1\u3057\u3001\u9867\u5ba2\u3084\u53d6\u5f15\u5148\u3092\u542b\u3080\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u5168\u4f53\u3092\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u8a50\u6b3a\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p>DMARC\u306fE\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u3092\u78ba\u5b9f\u306b\u8a8d\u8a3c\u3057\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001E\u30e1\u30fc\u30eb\u306b\u95a2\u9023\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u306e\u6709\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u65b9\u6cd5<\/h2>\n\n\n\n<p>DMARC\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u691c\u77e5\u3057\u3066\u9632\u6b62\u3059\u308b\u305f\u3081\u306e\u30e1\u30fc\u30eb\u691c\u8a3c\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u306a\u3069\u3067\u983b\u7e41\u306b\u5229\u7528\u3055\u308c\u308b\u624b\u6cd5\u306e\u4e00\u3064\u3067\u3042\u308b\u3001\u6b63\u898f\u306e\u7d44\u7e54\u304b\u3089\u306e\u3088\u3046\u306b\u507d\u88c5\u3055\u308c\u305f\u9001\u4fe1\u8005\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3064\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3053\u3068\u3092\u52a9\u3051\u307e\u3059\u3002DMARC\u306f\u3001DKIM\u3068SPF\u3068\u3044\u3046\u6a19\u6e96\u306b\u5f93\u3063\u3066\u3001\u6b63\u5f53\u306a\u96fb\u5b50\u30e1\u30fc\u30eb\u3092\u9069\u5207\u306b\u8a8d\u8a3c\u3057\u3001\u305d\u306e\u7d44\u7e54\u304c\u7ba1\u7406\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u30e1\u30fc\u30eb\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u9867\u5ba2\u306e\u53d7\u4fe1\u7bb1\u306b\u8a50\u6b3a\u884c\u70ba\u304c\u5c4a\u304f\u524d\u306b\u305d\u308c\u3092\u9632\u6b62\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001DMARC\u306f\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u8a50\u6b3a\u653b\u6483\u3092\u9632\u3050\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001\u8868\u793a\u540d\u8a50\u6b3a\u3084\u985e\u4f3c\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u305f\u8a50\u6b3a\u30e1\u30fc\u30eb\u306f\u3001DMARC\u3067\u306f\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002DMARC\u306f\u3001\u7d0430\uff05\u306e\u30e1\u30fc\u30eb\u8a50\u6b3a\u653b\u6483\u306b\u6709\u52b9\u306a\u5bfe\u7b56\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u5b8c\u74a7\u306a\u89e3\u6c7a\u7b56\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DMARC\u306e\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u8a8d\u8a3c\u3068\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/strong><\/h3>\n\n\n\n<p>\u30e1\u30c3\u30bb\u30fc\u30b8\u304cDMARC\u8a8d\u8a3c\u306b\u5408\u683c\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u3059\u308bSPF\u8a8d\u8a3c\u3068DKIM\u8a8d\u8a3c\u306e\u3044\u305a\u308c\u304b\u3001\u307e\u305f\u306f\u4e21\u65b9\u3092\u30d1\u30b9\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u60c5\u5831\u3068\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3001\u3064\u307e\u308aSPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u30d1\u30b9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30dd\u30ea\u30b7\u30fc<\/strong><\/h3>\n\n\n\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306b\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u304c\u8a2d\u5b9a\u3067\u304d\u308b3\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"is-style-sango-list-check wp-block-list\">\n<li><strong>None (\u7121\u3057)<\/strong><br>\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u53d7\u4fe1\u8005\u306b\u914d\u4fe1\u3055\u308c\u307e\u3059\u304c\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u306f\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>Quarantine (\u9694\u96e2)<\/strong><br>\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u9694\u96e2\u30d5\u30a9\u30eb\u30c0\u306b\u79fb\u52d5\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>Reject (\u62d2\u5426)<\/strong><br>\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u5168\u304f\u914d\u4fe1\u3055\u308c\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528<\/strong><\/h3>\n\n\n\n<ul class=\"is-style-sango-list-check wp-block-list\">\n<li>&#8220;None&#8221;\u30dd\u30ea\u30b7\u30fc\u306f\u3001DMARC\u3092\u5c0e\u5165\u3059\u308b\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u671b\u307e\u3057\u3044\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306f\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u72b6\u6cc1\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306f\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308a\u3001\u3059\u3079\u3066\u306e\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u304c\u9069\u5207\u306b\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u6b63\u5f53\u306a\u9001\u4fe1\u8005\u3092\u7279\u5b9a\u3057\u3001\u8a8d\u8a3c\u306e\u554f\u984c\u3092\u4fee\u6b63\u3057\u305f\u5f8c\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306f&#8221;Reject&#8221;\u30dd\u30ea\u30b7\u30fc\u306b\u79fb\u884c\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e1\u30fc\u30eb\u8a50\u6b3a\u653b\u6483\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>DMARC\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7d44\u7e54\u306f\u30bb\u30ad\u30e5\u30a2\u306a\u30e1\u30fc\u30eb\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u901a\u3058\u3066DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u7528\u3057\u3001\u5f93\u696d\u54e1\u3092\u30e1\u30fc\u30eb\u306e\u8105\u5a01\u304b\u3089\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DMARC\u306e\u5229\u70b9<\/h2>\n\n\n\n<ul class=\"is-style-sango-list-check wp-block-list\">\n<li><strong>\u5f93\u696d\u54e1\u3001\u53d6\u5f15\u5148\u3001\u9867\u5ba2\u3092\u4fdd\u8b77\u3059\u308b<\/strong><br>DMARC\u306f\u3001\u7d44\u7e54\u306b\u95a2\u9023\u3059\u308b\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u5168\u4f53\u3092\u72d9\u3046\u4e0d\u6b63\u306a\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u7bb1\u306b\u5c4a\u304f\u524d\u306b\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5f93\u696d\u54e1\u3001\u53d6\u5f15\u5148\u4f01\u696d\u3001\u9867\u5ba2\u306a\u3069\u304c\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u8105\u5a01\u3092\u5373\u5ea7\u306b\u53ef\u8996\u5316\u3059\u308b<\/strong><br>DMARC\u306e\u5c0e\u5165\u3068\u8a2d\u5b9a\u306b\u3088\u308a\u3001\u7d44\u7e54\u3092\u72d9\u3046\u8105\u5a01\u3092\u3059\u3050\u306b\u53ef\u8996\u5316\u3067\u304d\u307e\u3059\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u3084\u30c9\u30e1\u30a4\u30f3\u306e\u306a\u308a\u3059\u307e\u3057\u306b\u5bfe\u51e6\u3057\u3001\u9867\u5ba2\u3084\u53d6\u5f15\u5148\u4f01\u696d\u3092\u4fdd\u8b77\u3057\u3001\u30d6\u30e9\u30f3\u30c9\u4fa1\u5024\u306e\u6bc0\u640d\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u3068\u30a8\u30f3\u30b2\u30fc\u30b8\u30e1\u30f3\u30c8\u306e\u5411\u4e0a<\/strong><br>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u304c\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001DMARC\u306f\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u914d\u4fe1\u53ef\u80fd\u6027\u3068\u30a8\u30f3\u30b2\u30fc\u30b8\u30e1\u30f3\u30c8\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u9867\u5ba2\u30b5\u30fc\u30d3\u30b9\u30b3\u30b9\u30c8\u306e\u524a\u6e1b<\/strong><br>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u3001DMARC\u306f\u9867\u5ba2\u30b5\u30fc\u30d3\u30b9\u306e\u30b3\u30b9\u30c8\u3092\u5287\u7684\u306b\u524a\u6e1b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5229\u70b9\u306b\u3088\u308a\u3001DMARC\u306f\u7d44\u7e54\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3067\u3042\u308a\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u3068\u9867\u5ba2\u4fdd\u8b77\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DMARC\u3092\u59cb\u3081\u308b\u305f\u3081\u306b<\/h2>\n\n\n\n<ul class=\"is-style-sango-list-circle wp-block-list\">\n<li><strong>\u7406\u89e3\u3068\u8a08\u753b<\/strong><br>DMARC\u306e\u5c0e\u5165\u306b\u5411\u3051\u3066\u3001\u7d44\u7e54\u5185\u3067\u306e\u7406\u89e3\u3092\u6df1\u3081\u3001\u8a08\u753b\u3092\u7acb\u3066\u307e\u3059\u3002DMARC\u306e\u57fa\u672c\u7684\u306a\u6982\u5ff5\u3084\u30e1\u30ea\u30c3\u30c8\u3001\u5c0e\u5165\u306b\u4f34\u3046\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066\u5f93\u696d\u54e1\u3084\u95a2\u4fc2\u8005\u306b\u8aac\u660e\u3057\u3001\u652f\u63f4\u3092\u5f97\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u751f\u6210<\/strong><br>DMARC\u30ec\u30b3\u30fc\u30c9\u751f\u6210\u30c4\u30fc\u30eb\u3092\u5229\u7528\u3057\u3066\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u30ec\u30b3\u30fc\u30c9\u306b\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\u3084\u30ec\u30dd\u30fc\u30c8\u306e\u9001\u4fe1\u5148\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u751f\u6210\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u8005\u304c\u884c\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>DNS\u3078\u306e\u30ec\u30b3\u30fc\u30c9\u8ffd\u52a0<\/strong><br>\u751f\u6210\u3057\u305fDMARC\u30ec\u30b3\u30fc\u30c9\u3092DNS\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002DNS\u7ba1\u7406\u753b\u9762\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u4f5c\u696d\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u8a8d\u8a3c\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u8abf\u6574<\/strong><br>DMARC\u3092\u5c0e\u5165\u3057\u305f\u5f8c\u306f\u3001\u5b9a\u671f\u7684\u306bDMARC\u30ec\u30dd\u30fc\u30c8\u3092\u53ce\u96c6\u3057\u3001\u89e3\u6790\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u72b6\u6cc1\u3084DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528\u72b6\u6cc1\u3092\u628a\u63e1\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30dd\u30ea\u30b7\u30fc\u3084\u8a2d\u5b9a\u3092\u8abf\u6574\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u6bb5\u968e\u7684\u306a\u5c0e\u5165\u3068\u30c8\u30e9\u30a4\u30a2\u30eb<\/strong><br>\u5168\u3066\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3057\u3066\u4e00\u5ea6\u306bDMARC\u3092\u5c0e\u5165\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u6bb5\u968e\u7684\u306b\u5c0e\u5165\u3057\u3001\u30c8\u30e9\u30a4\u30a2\u30eb\u3092\u884c\u3044\u307e\u3059\u3002\u7279\u306b\u5927\u898f\u6a21\u306a\u7d44\u7e54\u3067\u306f\u3001\u4e00\u90e8\u306e\u30c9\u30e1\u30a4\u30f3\u3084\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u59cb\u3081\u3001\u7d4c\u9a13\u3092\u7a4d\u307f\u306a\u304c\u3089\u5c55\u958b\u3092\u9032\u3081\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u610f\u8b58\u306e\u5411\u4e0a<\/strong><br>\u30e6\u30fc\u30b6\u30fc\u3084\u5f93\u696d\u54e1\u306b\u5bfe\u3057\u3066\u3001DMARC\u306e\u5c0e\u5165\u3068\u305d\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u5553\u767a\u6d3b\u52d5\u3092\u884c\u3044\u307e\u3059\u3002\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u610f\u8b58\u3092\u9ad8\u3081\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306a\u3069\u304b\u3089\u306e\u9632\u5fa1\u529b\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>DMARC\u306e\u5c0e\u5165\u306f\u7d44\u7e54\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3067\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u306a\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u304b\u3089\u59cb\u3081\u3001\u6bb5\u968e\u7684\u306b\u5c55\u958b\u3057\u3066\u3044\u304f\u3053\u3068\u3067\u3001\u52b9\u679c\u7684\u306a\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u7acb\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u306e\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u78ba\u8a8d\u3059\u308b\u5834\u5408\u3001\u300c\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u540d\uff0bDMARC\u300d\u3067\u3001\u691c\u7d22\u3059\u308b\u3053\u3068\u3067\u5bfe\u5fdc\u306e\u6709\u7121\u3084\u65b9\u6cd5\u3092\u8abf\u3079\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u30d8\u30eb\u30d7\u30b5\u30a4\u30c8\u304c\u898b\u3064\u304b\u308a\u307e\u3059\u306e\u3067\u3001\u53c2\u8003\u306b\u3059\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>DMARC\u306fSPF\u30fbDKIM\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u52b9\u679c\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3059\u308b\u5f37\u529b\u306a\u30e1\u30fc\u30eb\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002\u7279\u306b2024\u5e74\u4ee5\u964d\u3001Gmail\u306a\u3069\u4e3b\u8981\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304cDMARC\u5bfe\u5fdc\u3092\u8981\u4ef6\u3068\u3057\u3066\u304a\u308a\u3001\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u306b\u306f\u5fc5\u9808\u306e\u8a2d\u5b9a\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"is-style-sango-list-check wp-block-list\"><li>DMARC\u306fSPF\u30fbDKIM\u3068\u9023\u643a\u3057\u3066\u30e1\u30fc\u30eb\u306a\u308a\u3059\u307e\u3057\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u30dd\u30ea\u30b7\u30fc\u8a2d\u5b9a<\/li><li>\u30dd\u30ea\u30b7\u30fc\u306fNone\u2192Quarantine\u2192Reject\u306e\u9806\u306b\u6bb5\u968e\u7684\u306b\u5f37\u5316\u3059\u308b<\/li><li>DMARC\u30ec\u30dd\u30fc\u30c8\u3067\u4e0d\u6b63\u5229\u7528\u306e\u72b6\u6cc1\u3092\u53ef\u8996\u5316\u30fb\u76e3\u8996\u3067\u304d\u308b<\/li><li>Gmail\u306a\u3069\u4e3b\u8981\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u914d\u4fe1\u7387\u5411\u4e0a\u306b\u3082\u52b9\u679c\u7684<\/li><\/ul>\n\n\n\n<p>\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u4e09\u672c\u67f1\u3067\u3042\u308b<a href=\"https:\/\/kigyodx.com\/server\/spf\/\">SPF<\/a>\u30fb<a href=\"https:\/\/kigyodx.com\/server\/dkim\/\">DKIM<\/a>\u30fbDMARC\u3092\u3059\u3079\u3066\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4e07\u5168\u306b\u3057\u307e\u3057\u3087\u3046\u3002DKIM\u5bfe\u5fdc\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u304a\u63a2\u3057\u306e\u65b9\u306f<a href=\"https:\/\/kigyodx.com\/server\/server-select\/\">\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u9078\u3073\u65b9<\/a>\u3082\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udccb \u3053\u306e\u8a18\u4e8b\u3067\u308f\u304b\u308b\u3053\u3068 DMARC\uff08Domain-based Message Authentication, Reporting &amp; Conformance\uff09\u306f\u3001\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306e\u6700\u7d42\u9632\u885b\u30e9\u30a4\u30f3\u3067\u3059\u3002SP [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":132,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-178","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-column"],"acf":[],"_links":{"self":[{"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/posts\/178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/comments?post=178"}],"version-history":[{"count":3,"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/posts\/178\/revisions"}],"predecessor-version":[{"id":510,"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/posts\/178\/revisions\/510"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/media\/132"}],"wp:attachment":[{"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/media?parent=178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/categories?post=178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kigyodx.com\/server\/wp-json\/wp\/v2\/tags?post=178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}