{"id":21430,"date":"2026-03-10T11:24:12","date_gmt":"2026-03-10T02:24:12","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=21430"},"modified":"2026-03-10T15:51:07","modified_gmt":"2026-03-10T06:51:07","slug":"dmarc-policy","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/spam\/dmarc-policy","title":{"rendered":"DMARC\u30dd\u30ea\u30b7\u30fc\u3068\u306f\uff1fnone\u30fbquarantine\u30fbreject\u306e\u9055\u3044\u3068\u6b63\u3057\u3044\u79fb\u884c\u624b\u9806\u3092\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/03\/dmarc-policy2.jpg\" alt=\"DMARC\u30dd\u30ea\u30b7\u30fc\u3068\u306f\uff1fnone\u30fbquarantine\u30fbreject\u306e\u9055\u3044\u3068\u6b63\u3057\u3044\u79fb\u884c\u624b\u9806\u3092\u5fb9\u5e95\u89e3\u8aac\" width=\"1376\" height=\"768\" class=\"alignnone size-full wp-image-21434\" \/><\/p>\n<p>Gmail\u3084Yahoo!\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u53b3\u683c\u5316\u3055\u308c\u3001DMARC\uff08\u30c7\u30a3\u30fc\u30de\u30fc\u30af\uff09\u306e\u8a2d\u5b9a\u306f\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3046\u3059\u3079\u3066\u306e\u4f01\u696d\u306b\u3068\u3063\u3066\u5fc5\u9808\u306e\u5bfe\u5fdc\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3044\u3056DMARC\u3092\u5c0e\u5165\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u300c\u30dd\u30ea\u30b7\u30fc\u306enone\u30fbquarantine\u30fbreject\u306f\u4f55\u304c\u9055\u3046\u306e\u304b\u300d\u300c\u81ea\u793e\u306b\u306f\u3069\u306e\u30dd\u30ea\u30b7\u30fc\u304c\u6700\u9069\u306a\u306e\u304b\u300d\u300c\u3044\u304d\u306a\u308areject\u306b\u3057\u3066\u5927\u4e08\u592b\u306a\u306e\u304b\u300d\u3068\u8ff7\u3046\u30b1\u30fc\u30b9\u306f\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u7279\u306b2024\u5e742\u6708\u4ee5\u964d\u3001<span style=\"color: #ff0000;\"><strong>Google\u306f1\u65e55,000\u901a\u4ee5\u4e0a\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u5927\u91cf\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3066\u3001DMARC\u306e\u8a2d\u5b9a\u3092\u7fa9\u52d9\u5316\u3057\u3066\u3044\u307e\u3059<\/strong><\/span>\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/gmail-guideline-202402\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/DKIM-2.png\" alt=\"\u30102025\u5e7411\u6708\u66f4\u65b0\u30112024\u5e742\u6708\u3088\u308aGmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5909\u66f4\uff011\u65e55,000\u4ef6\u4ee5\u4e0a\u306e\u914d\u4fe1\u306f\u5bfe\u5fdc\u5fc5\u9808\uff01\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30102025\u5e7411\u6708\u66f4\u65b0\u30112024\u5e742\u6708\u3088\u308aGmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5909\u66f4\uff011\u65e55,000\u4ef6\u4ee5\u4e0a\u306e\u914d\u4fe1\u306f\u5bfe\u5fdc\u5fc5\u9808\uff01<\/div>\n    <div class=\"blogcard_excerpt\">2023\u5e7410\u6708\u3001Gmail\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u307e\u3057\u305f\u3002 Google\u516c\u5f0f\uff1a\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3 \u3053\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u304b\u3089\u30013\u3064\u306e\u30dd\u30ea\u30b7\u30fc\uff08none\u30fbquarantine\u30fbreject\uff09\u306e\u5177\u4f53\u7684\u306a\u9055\u3044\u3001DNS\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3001\u305d\u3057\u3066none\u304b\u3089reject\u307e\u3067\u306e\u5b89\u5168\u306a\u79fb\u884c\u624b\u9806\u307e\u3067\u3092\u3001\u5b9f\u52d9\u306b\u5373\u3057\u305f\u8996\u70b9\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u74b0\u5883\u3092\u5b88\u308a\u306a\u304c\u3089\u3001\u6bb5\u968e\u7684\u306bDMARC\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316\u3059\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi-doc\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/06\/unnamed-1.jpg\" alt=\"bimi\u5b8c\u5168\u30ac\u30a4\u30c9\" width=\"1024\" height=\"373\" class=\"alignnone wp-image-21292 size-full\" \/><\/a><\/p>\n<h2>DMARC\u30dd\u30ea\u30b7\u30fc\u3068\u306f\uff1f\u57fa\u672c\u306e\u4ed5\u7d44\u307f\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/h2>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3068\u306f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb\u304cDMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3057\u3066\u307b\u3057\u3044\u304b\u3092\u6307\u793a\u3059\u308b\u30eb\u30fc\u30eb\u306e\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u30dd\u30ea\u30b7\u30fc\u306f\u3001DNS\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u516c\u958b\u3055\u308c\u3001\u4e16\u754c\u4e2d\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304c\u53c2\u7167\u3059\u308b\u4ed5\u7d44\u307f\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>DMARC\u306e\u6b63\u5f0f\u540d\u79f0\u3068\u5f79\u5272<\/h3>\n<p>DMARC\u306f\u300cDomain-based Message Authentication, Reporting and Conformance\u300d\u306e\u7565\u79f0\u3067\u3001\u65e5\u672c\u8a9e\u3067\u306f\u300c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u300d\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u3084\u6539\u3056\u3093\u3092\u9632\u3050\u305f\u3081\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6280\u8853\u306e\u4e00\u3064\u3067\u3042\u308a\u3001\u65e2\u5b58\u306eSPF\uff08Sender Policy Framework\uff09\u3068DKIM\uff08DomainKeys Identified Mail\uff09\u3068\u3044\u30462\u3064\u306e\u8a8d\u8a3c\u6280\u8853\u3092\u57fa\u76e4\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n<p>DMARC\u306e\u6700\u5927\u306e\u7279\u5fb4\u306f\u3001<strong>\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u9001\u4fe1\u8005\u5074\u304c\u6307\u5b9a\u3067\u304d\u308b<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002SPF\u3084DKIM\u3060\u3051\u3067\u306f\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u306f\u53d7\u4fe1\u8005\u5074\u306e\u5224\u65ad\u306b\u59d4\u306d\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002DMARC\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u304c\u300c\u8a8d\u8a3c\u5931\u6557\u6642\u306b\u306f\u3053\u306e\u3088\u3046\u306b\u51e6\u7406\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306b\u6307\u793a\u3092\u51fa\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>SPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u6027<\/h3>\n<p>DMARC\u306fSPF\u3068DKIM\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u300c\u675f\u306d\u308b\u53f8\u4ee4\u5854\u300d\u306e\u3088\u3046\u306a\u5b58\u5728\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u3092\u6574\u7406\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\uff1a<\/strong>\u30e1\u30fc\u30eb\u304c\u6b63\u898f\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u3082\u306e\u304b\u3069\u3046\u304b\u3092\u3001IP\u30a2\u30c9\u30ec\u30b9\u30d9\u30fc\u30b9\u3067\u78ba\u8a8d\u3059\u308b\u6280\u8853\u3067\u3059\u3002DNS\u306b\u767b\u9332\u3055\u308c\u305f\u9001\u4fe1\u8a31\u53ef\u30b5\u30fc\u30d0\u30fc\u306e\u30ea\u30b9\u30c8\u3068\u3001\u5b9f\u969b\u306e\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u3092\u7167\u5408\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u6b63\u306a\u9001\u4fe1\u5143\u3092\u691c\u77e5\u3057\u307e\u3059\u3002<\/li>\n<li><strong>DKIM\uff1a<\/strong>\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3001\u9001\u4fe1\u5f8c\u306b\u5185\u5bb9\u304c\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u691c\u8a3c\u3059\u308b\u6280\u8853\u3067\u3059\u3002\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u3067\u79d8\u5bc6\u9375\u3092\u4f7f\u3063\u3066\u7f72\u540d\u3057\u3001\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304cDNS\u4e0a\u306e\u516c\u958b\u9375\u3067\u691c\u8a3c\u3059\u308b\u4ed5\u7d44\u307f\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>DMARC\uff1a<\/strong>SPF\u307e\u305f\u306fDKIM\u306e\u8a8d\u8a3c\u7d50\u679c\u306b\u52a0\u3048\u3066\u300c\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff08\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u81f4\u78ba\u8a8d\uff09\u300d\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u51e6\u7406\u65b9\u91dd\u3092\u30dd\u30ea\u30b7\u30fc\u3068\u3057\u3066\u6307\u5b9a\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u8a8d\u8a3c\u7d50\u679c\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306b\u9001\u4fe1\u3059\u308b\u6a5f\u80fd\u3082\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div>\n<p>\u3064\u307e\u308a\u3001SPF\u3068DKIM\u304c\u300c\u30e1\u30fc\u30eb\u306e\u6b63\u5f53\u6027\u3092\u691c\u8a3c\u3059\u308b\u6280\u8853\u300d\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001DMARC\u306f\u300c\u691c\u8a3c\u7d50\u679c\u306b\u57fa\u3065\u3044\u3066\u51e6\u7406\u3092\u6c7a\u5b9a\u3057\u3001\u72b6\u6cc1\u3092\u53ef\u8996\u5316\u3059\u308b\u6280\u8853\u300d\u3068\u3044\u3046\u4f4d\u7f6e\u3065\u3051\u3067\u3059\u3002DKIM\u306e\u4ed5\u7d44\u307f\u3084SPF\u3068\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/dkim\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/09\/dkim1.jpg\" alt=\"\u3010\u56f3\u89e3\u3011DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4ed5\u7d44\u307f\u3068SPF\u30fbDMARC\u3068\u306e\u9055\u3044\u3092\u89e3\u8aac\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u3010\u56f3\u89e3\u3011DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4ed5\u7d44\u307f\u3068SPF\u30fbDMARC\u3068\u306e\u9055\u3044\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">DKIM\u3063\u3066\u3069\u3093\u306a\u4ed5\u7d44\u307f\uff1fGmail\u3084Outlook\u306b\u306f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u306e\uff1f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e1\u3064\u3067\u3042\u308bDKIM\u306e\u4ed5\u7d44\u307f\u3084\u5f79\u5272\u306b\u3064\u3044\u3066\u56f3\u89e3\u3057\u307e\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>DMARC\u8a8d\u8a3c\u306e\u6d41\u308c<\/h3>\n<p>DMARC\u8a8d\u8a3c\u306f\u4ee5\u4e0b\u306e\u6d41\u308c\u3067\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u304cDMARC\u30dd\u30ea\u30b7\u30fc\u60c5\u5831\uff08DMARC\u30ec\u30b3\u30fc\u30c9\uff09\u3092DNS\u30b5\u30fc\u30d0\u30fc\u306b\u767b\u9332\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3057\u305f\u969b\u3001\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002DMARC\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001SPF\u304a\u3088\u3073DKIM\u306e\u8a8d\u8a3c\u3068\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u691c\u8a3c\u3092\u5b9f\u65bd\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u304c\u300c\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u300d\u3068\u3044\u3046\u6982\u5ff5\u3067\u3059\u3002\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0From\uff08\u5dee\u51fa\u4eba\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u308b\u30c9\u30e1\u30a4\u30f3\uff09\u3068\u3001SPF\u3067\u8a8d\u8a3c\u3055\u308c\u305fReturn-Path\u30c9\u30e1\u30a4\u30f3\u3001\u307e\u305f\u306fDKIM\u306e\u7f72\u540d\u30c9\u30e1\u30a4\u30f3\uff08d=\u30bf\u30b0\uff09\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002SPF\u3084DKIM\u306e\u8a8d\u8a3c\u304c\u6210\u529f\u3057\u3066\u3082\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3051\u308c\u3070DMARC\u8a8d\u8a3c\u306f\u5931\u6557\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306b\u5f93\u3063\u3066\u30e1\u30fc\u30eb\u304c\u51e6\u7406\u3055\u308c\u3001\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306bDMARC\u30ec\u30dd\u30fc\u30c8\u304c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><strong>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastengine.jp\/blog_content\/dmarc-alignment\/\" target=\"_blank\" rel=\"noopener\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1f\u5fc5\u8981\u6027\u3084\u7a2e\u985e\u3001\u4ed5\u7d44\u307f\u3092\u5fb9\u5e95\u89e3\u8aac<\/a><\/strong><\/p>\n<h2>DMARC\u30dd\u30ea\u30b7\u30fc\u306e3\u7a2e\u985e\uff1anone\u30fbquarantine\u30fbreject\u306e\u9055\u3044<\/h2>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306b\u306f\u3001\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u51e6\u7406\u65b9\u6cd5\u3068\u3057\u30663\u3064\u306e\u9078\u629e\u80a2\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3092\u6b63\u78ba\u306b\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u3001\u9069\u5207\u306a\u30dd\u30ea\u30b7\u30fc\u9078\u629e\u306e\u7b2c\u4e00\u6b69\u3067\u3059\u3002<\/p>\n<h3>p=none\uff08\u76e3\u8996\u30e2\u30fc\u30c9\uff09\u306e\u7279\u5fb4\u3068\u4f7f\u3044\u3069\u3053\u308d<\/h3>\n<p>p=none\u306f\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066<strong>\u4f55\u3082\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u53d6\u3089\u306a\u3044<\/strong>\u30dd\u30ea\u30b7\u30fc\u3067\u3059\u3002\u300c\u76e3\u8996\u30e2\u30fc\u30c9\u300d\u3068\u3082\u547c\u3070\u308c\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3067\u3042\u3063\u3066\u3082\u901a\u5e38\u901a\u308a\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u914d\u4fe1\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30dd\u30ea\u30b7\u30fc\u306e\u6700\u5927\u306e\u76ee\u7684\u306f\u3001<strong>DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u53ce\u96c6\u3057\u3066\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u72b6\u6cc1\u3092\u53ef\u8996\u5316\u3059\u308b<\/strong>\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002DMARC\u30ec\u30b3\u30fc\u30c9\u306brua\u30bf\u30b0\u3067\u30ec\u30dd\u30fc\u30c8\u9001\u4fe1\u5148\u3092\u6307\u5b9a\u3057\u3066\u304a\u304f\u3068\u3001\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\uff08Aggregate Report\uff09\u304cXML\u5f62\u5f0f\u3067\u5c4a\u304d\u307e\u3059\u3002<\/p>\n<p>p=none\u306f<strong>DMARC\u5c0e\u5165\u306e\u521d\u671f\u6bb5\u968e<\/strong>\u3067\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u307e\u305a\u306f\u73fe\u72b6\u628a\u63e1\u3068\u3057\u3066\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u3069\u306e\u3088\u3046\u306a\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u8a8d\u8a3c\u306e\u6210\u529f\u30fb\u5931\u6557\u72b6\u6cc1\u306f\u3069\u3046\u306a\u3063\u3066\u3044\u308b\u304b\u3092\u30ec\u30dd\u30fc\u30c8\u3067\u78ba\u8a8d\u3059\u308b\u30d5\u30a7\u30fc\u30ba\u3067\u3059\u3002\u305f\u3060\u3057\u3001<span style=\"color: #ff0000;\"><strong>p=none\u306b\u306f\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u52b9\u679c\u304c\u306a\u3044<\/strong><\/span>\u3068\u3044\u3046\u5927\u304d\u306a\u5f31\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u3042\u304f\u307e\u3067\u30ec\u30dd\u30fc\u30c8\u53ce\u96c6\u306e\u305f\u3081\u306e\u300c\u6e96\u5099\u6bb5\u968e\u300d\u3067\u3042\u308a\u3001\u9577\u671f\u9593\u306b\u308f\u305f\u3063\u3066p=none\u306e\u307e\u307e\u653e\u7f6e\u3059\u308b\u3053\u3068\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u30ea\u30b9\u30af\u3092\u653e\u7f6e\u3057\u3066\u3044\u308b\u3053\u3068\u3068\u540c\u7fa9\u3067\u3059\u3002<\/p>\n<h3>p=quarantine\uff08\u9694\u96e2\u30e2\u30fc\u30c9\uff09\u306e\u7279\u5fb4\u3068\u4f7f\u3044\u3069\u3053\u308d<\/h3>\n<p>p=quarantine\u306f\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3084\u9694\u96e2\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u308b<\/strong>\u3088\u3046\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u30fc\u306b\u6307\u793a\u3059\u308b\u30dd\u30ea\u30b7\u30fc\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30dd\u30ea\u30b7\u30fc\u3067\u306f\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u304c\u5373\u5ea7\u306b\u524a\u9664\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u53d7\u4fe1\u8005\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u79fb\u52d5\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4e07\u304c\u4e00\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u304c\u8aa4\u3063\u3066\u8a8d\u8a3c\u5931\u6557\u3057\u305f\u5834\u5408\u3067\u3082\u3001\u53d7\u4fe1\u8005\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3092\u78ba\u8a8d\u3059\u308c\u3070\u5185\u5bb9\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3068\u3044\u3046\u30bb\u30fc\u30d5\u30c6\u30a3\u30cd\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002p=quarantine\u306e\u8a2d\u5b9a\u304c\u9069\u3057\u3066\u3044\u308b\u72b6\u6cc1\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>p=none\u3067\u306e\u30ec\u30dd\u30fc\u30c8\u5206\u6790\u304c\u5b8c\u4e86\u3057\u3001\u4e3b\u8981\u306a\u9001\u4fe1\u5143\u306eSPF\u30fbDKIM\u8a2d\u5b9a\u304c\u6574\u3063\u305f\u6bb5\u968e<\/li>\n<li>p=reject\u306b\u79fb\u884c\u3059\u308b\u524d\u306e\u30c6\u30b9\u30c8\u671f\u9593\u3068\u3057\u3066<\/li>\n<li>\u6b63\u898f\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u5931\u6557\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u5316\u3057\u305f\u5f8c\u306e\u4e2d\u9593\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066<\/div><\/li>\n<\/ul>\n<p>\u307e\u305f\u3001<strong>BIMI\uff08Brand Indicators for Message Identification\uff09<\/strong>\u3092\u5c0e\u5165\u3059\u308b\u5834\u5408\u306f\u3001p=quarantine\u4ee5\u4e0a\u306e\u30dd\u30ea\u30b7\u30fc\u304c\u5fc5\u9808\u6761\u4ef6\u3068\u306a\u308a\u307e\u3059\u3002BIMI\u3068\u306f\u3001\u53d7\u4fe1\u8005\u306e\u30e1\u30fc\u30eb\u4e00\u89a7\u753b\u9762\u3067\u9001\u4fe1\u8005\u540d\u306e\u6a2a\u306b\u81ea\u793e\u306e\u516c\u5f0f\u30ed\u30b4\u30de\u30fc\u30af\u3092\u8868\u793a\u3055\u305b\u308b\u4ed5\u7d44\u307f\u306e\u3053\u3068\u3067\u3059\u3002\u3064\u307e\u308a\u3001p=quarantine\u306e\u8a2d\u5b9a\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u9069\u5207\u306b\u884c\u308f\u308c\u3066\u3044\u308b\u4e00\u3064\u306e\u6307\u6a19\u3068\u3082\u306a\u308a\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mailmagazine\/about-bimi\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/01\/about-bimi.png\" alt=\"BIMI\u3068\u306f\uff1f\u8a2d\u5b9a\u65b9\u6cd5\u3092\u5b8c\u5168\u89e3\u8aac\u30102026\u5e74\u6700\u65b0\u3011Gmail\u3067\u306e\u30ed\u30b4\u8868\u793a\u30fbVMC\u53d6\u5f97\u624b\u9806\u307e\u3067\" width=\"90\" height=\"60\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">BIMI\u3068\u306f\uff1f\u8a2d\u5b9a\u65b9\u6cd5\u3092\u5b8c\u5168\u89e3\u8aac\u30102026\u5e74\u6700\u65b0\u3011Gmail\u3067\u306e\u30ed\u30b4\u8868\u793a\u30fbVMC\u53d6\u5f97\u624b\u9806\u307e\u3067<\/div>\n    <div class=\"blogcard_excerpt\">\u300c\u6700\u8fd1\u30ed\u30b4\u306e\u3064\u3044\u305f\u30e1\u30eb\u30de\u30ac\u304c\u5897\u3048\u3066\u308b\u3051\u3069\u3001\u4e00\u4f53\u3069\u3046\u3084\u3063\u3066\u3044\u308b\u3093\u3060\u308d\u3046\uff1f\u300d\u3068\u601d\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f \u30e1\u30fc\u30eb\u306b\u30ed\u30b4\u3092\u4ed8\u3051\u308b\u65b9\u6cd5\u306f\u300cBIMI\u300d\u3068\u547c\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>p=reject\uff08\u62d2\u5426\u30e2\u30fc\u30c9\uff09\u306e\u7279\u5fb4\u3068\u4f7f\u3044\u3069\u3053\u308d<\/h3>\n<p>p=reject\u306f\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u30fc\u304c<strong>\u5b8c\u5168\u306b\u62d2\u5426\u3057\u3001\u53d7\u4fe1\u8005\u306b\u4e00\u5207\u914d\u4fe1\u3057\u306a\u3044<\/strong>\u30dd\u30ea\u30b7\u30fc\u3067\u3059\u3002\u3053\u308c\u306f<span style=\"color: #ff0000;\">DMARC\u306e<strong>\u6700\u3082\u53b3\u683c\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306f\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u3082\u5c4a\u304b\u305a\u3001\u5b8c\u5168\u306b\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u8005\u306b\u5c4a\u304f\u30ea\u30b9\u30af\u3092\u307b\u307c\u30bc\u30ed\u306b\u3067\u304d\u308b\u305f\u3081\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u3084\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\uff08BEC\uff09\u3078\u306e\u6700\u3082\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u3068\u306a\u308a\u307e\u3059\u3002p=reject\u306e\u8a2d\u5b9a\u304c\u9069\u3057\u3066\u3044\u308b\u72b6\u6cc1\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>SPF\u30fbDKIM\u306e\u8a2d\u5b9a\u304c\u5b8c\u5168\u306b\u6574\u3044\u3001\u3059\u3079\u3066\u306e\u6b63\u898f\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u304cDMARC\u8a8d\u8a3c\u3092\u30d1\u30b9\u3057\u3066\u3044\u308b\u72b6\u614b<\/li>\n<li>p=quarantine\u3067\u5341\u5206\u306a\u671f\u9593\u3092\u7d4c\u3066\u3001\u8aa4\u5224\u5b9a\u304c\u306a\u3044\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u305f\u5834\u5408<\/li>\n<li>\u30d6\u30e9\u30f3\u30c9\u4fdd\u8b77\u3084\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u8981\u4ef6\u3067\u53b3\u683c\u306a\u30e1\u30fc\u30eb\u8a8d\u8a3c\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u5408<\/li>\n<\/ul>\n<\/div>\n<p>\u6700\u7d42\u7684\u306b\u306fp=reject\u3092\u76ee\u6307\u3059\u306e\u304c\u30d9\u30b9\u30c8\u3067\u3059\u304c\u3001<strong>\u8a2d\u5b9a\u306b\u4e0d\u5099\u304c\u3042\u308b\u72b6\u614b\u3067reject\u3092\u6709\u52b9\u306b\u3059\u308b\u3068\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u307e\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3057\u307e\u3046<\/strong>\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u6bb5\u968e\u7684\u306a\u79fb\u884c\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<h3>3\u3064\u306e\u30dd\u30ea\u30b7\u30fc\u306e\u6bd4\u8f03\u8868<\/h3>\n<p>DMARC\u306e3\u3064\u306e\u30dd\u30ea\u30b7\u30fc\uff08none\u30fbquarantine\u30fbreject\uff09\u306e\u9055\u3044\u3092\u4e00\u76ee\u3067\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u3001\u6bd4\u8f03\u8868\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u81ea\u793e\u306e\u30d5\u30a7\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u6700\u9069\u306a\u8a2d\u5b9a\u3092\u9078\u629e\u3059\u308b\u305f\u3081\u306e\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left\">\u9805\u76ee<\/th>\n<th style=\"text-align: left\">p=none\uff08\u76e3\u8996\uff09<\/th>\n<th style=\"text-align: left\">p=quarantine\uff08\u9694\u96e2\uff09<\/th>\n<th style=\"text-align: left\">p=reject\uff08\u62d2\u5426\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left\">\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u51e6\u7406<\/td>\n<td style=\"text-align: left\">\u4f55\u3082\u3057\u306a\u3044\uff08\u901a\u5e38\u914d\u4fe1\uff09<\/td>\n<td style=\"text-align: left\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3078\u79fb\u52d5<\/td>\n<td style=\"text-align: left\">\u53d7\u4fe1\u3092\u5b8c\u5168\u306b\u62d2\u5426<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u306a\u308a\u3059\u307e\u3057\u9632\u5fa1\u529b<\/td>\n<td style=\"text-align: left\">\u306a\u3057<\/td>\n<td style=\"text-align: left\">\u4e2d\u7a0b\u5ea6<\/td>\n<td style=\"text-align: left\">\u6700\u9ad8<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u6b63\u898f\u30e1\u30fc\u30eb\u3078\u306e\u5f71\u97ff\u30ea\u30b9\u30af<\/td>\n<td style=\"text-align: left\">\u306a\u3057<\/td>\n<td style=\"text-align: left\">\u4f4e\u301c\u4e2d\uff08\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u308b\u53ef\u80fd\u6027\uff09<\/td>\n<td style=\"text-align: left\">\u9ad8\uff08\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u53ef\u80fd\u6027\uff09<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">DMARC\u30ec\u30dd\u30fc\u30c8<\/td>\n<td style=\"text-align: left\">\u53d7\u4fe1\u53ef\u80fd<\/td>\n<td style=\"text-align: left\">\u53d7\u4fe1\u53ef\u80fd<\/td>\n<td style=\"text-align: left\">\u53d7\u4fe1\u53ef\u80fd<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">BIMI\u5bfe\u5fdc<\/td>\n<td style=\"text-align: left\">\u4e0d\u53ef<\/td>\n<td style=\"text-align: left\">\u5bfe\u5fdc\u53ef\u80fd<\/td>\n<td style=\"text-align: left\">\u5bfe\u5fdc\u53ef\u80fd<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u63a8\u5968\u30d5\u30a7\u30fc\u30ba<\/td>\n<td style=\"text-align: left\">\u5c0e\u5165\u521d\u671f\uff08\u76e3\u8996\u671f\u9593\uff09<\/td>\n<td style=\"text-align: left\">\u79fb\u884c\u6bb5\u968e\uff08\u30c6\u30b9\u30c8\u671f\u9593\uff09<\/td>\n<td style=\"text-align: left\">\u6700\u7d42\u76ee\u6a19\uff08\u5b8c\u5168\u9632\u5fa1\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u8868\u306e\u901a\u308a\u3001\u6700\u7d42\u76ee\u6a19\u306f\u6700\u3082\u9632\u5fa1\u529b\u304c\u9ad8\u3044\u300creject\u300d\u3067\u3059\u304c\u3001\u6700\u521d\u304b\u3089\u8a2d\u5b9a\u3059\u308b\u3068\u6b63\u898f\u30e1\u30fc\u30eb\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u300cnone\u300d\u304b\u3089\u958b\u59cb\u3057\u3001\u6bb5\u968e\u7684\u306b\u5f15\u304d\u4e0a\u3052\u3066\u3044\u304f\u904b\u7528\u3092\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u3068\u30bf\u30b0\u306e\u610f\u5473<\/h2>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3001DNS\u306bDMARC\u30ec\u30b3\u30fc\u30c9\uff08TXT\u30ec\u30b3\u30fc\u30c9\uff09\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u5177\u4f53\u7684\u306a\u66f8\u304d\u65b9\u3068\u3001\u5404\u30bf\u30b0\u306e\u610f\u5473\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u57fa\u672c\u69cb\u6587<\/h3>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f62\u5f0f\u3067\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre><code>_dmarc.example.com IN TXT \"v=DMARC1; p=none; rua=mailto:dmarc-report@example.com\"\r\n<\/code><\/pre>\n<p>\u30db\u30b9\u30c8\u540d\u306f\u300c_dmarc\u300d\u3067\u59cb\u307e\u308a\u3001\u305d\u306e\u5f8c\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u7d9a\u304d\u307e\u3059\u3002DNS\u30b5\u30fc\u30d3\u30b9\u306b\u3088\u3063\u3066\u306f\u300c_dmarc\u300d\u306e\u307f\u3092\u5165\u529b\u3059\u308c\u3070\u81ea\u52d5\u7684\u306b\u30c9\u30e1\u30a4\u30f3\u304c\u88dc\u5b8c\u3055\u308c\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u5404\u30bf\u30b0\u306e\u610f\u5473\u3068\u8a2d\u5b9a\u4f8b<\/h3>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u3067\u4f7f\u7528\u3055\u308c\u308b\u4e3b\u8981\u306a\u30bf\u30b0\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>v\uff08\u30d0\u30fc\u30b8\u30e7\u30f3\uff09<\/strong>\uff1a\u5fc5\u9808\u30bf\u30b0\u3002\u5e38\u306b\u300cDMARC1\u300d\u3068\u8a18\u8ff0\u3057\u307e\u3059\u3002\u30ec\u30b3\u30fc\u30c9\u306e\u5148\u982d\u306b\u914d\u7f6e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>p\uff08\u30dd\u30ea\u30b7\u30fc\uff09<\/strong>\uff1a\u5fc5\u9808\u30bf\u30b0\u3002\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u51e6\u7406\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u300cnone\u300d\u300cquarantine\u300d\u300creject\u300d\u306e\u3044\u305a\u308c\u304b\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002v\u30bf\u30b0\u306e\u6b21\u306b\u914d\u7f6e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>rua\uff08\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\u9001\u4fe1\u5148\uff09<\/strong>\uff1a\u4efb\u610f\u30bf\u30b0\u3002\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\uff08Aggregate Report\uff09\u306e\u9001\u4fe1\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u300crua=mailto:\u30a2\u30c9\u30ec\u30b9\u300d\u306e\u5f62\u5f0f\u3067\u8a18\u8ff0\u3057\u307e\u3059\u3002\u8907\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u30ab\u30f3\u30de\u3067\u533a\u5207\u308a\u307e\u3059\u3002<\/li>\n<li><strong>ruf\uff08\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u30ec\u30dd\u30fc\u30c8\u9001\u4fe1\u5148\uff09<\/strong>\uff1a\u4efb\u610f\u30bf\u30b0\u3002\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u500b\u5225\u306e\u30e1\u30fc\u30eb\u306b\u95a2\u3059\u308b\u8a73\u7d30\u30ec\u30dd\u30fc\u30c8\u306e\u9001\u4fe1\u5148\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>pct\uff08\u9069\u7528\u7387\uff09<\/strong>\uff1a\u4efb\u610f\u30bf\u30b0\u3002\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u7528\u3059\u308b\u30e1\u30fc\u30eb\u306e\u5272\u5408\u30920\u301c100\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u6bb5\u968e\u7684\u306b\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316\u3059\u308b\u969b\u306b\u6709\u7528\u3067\u3059\u3002\u4f8b\u3048\u3070\u300cpct=25\u300d\u3068\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u8a8d\u8a3c\u5931\u6557\u30e1\u30fc\u30eb\u306e25%\u306b\u306e\u307f\u30dd\u30ea\u30b7\u30fc\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>sp\uff08\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u30dd\u30ea\u30b7\u30fc\uff09<\/strong>\uff1a\u4efb\u610f\u30bf\u30b0\u3002\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3059\u308b\u30dd\u30ea\u30b7\u30fc\u3092\u500b\u5225\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u306f\u3001p\u30bf\u30b0\u306e\u5024\u304c\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u3082\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>adkim\uff08DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\uff09<\/strong>\uff1a\u4efb\u610f\u30bf\u30b0\u3002\u300cs\u300d\uff08strict\uff1a\u53b3\u683c\uff09\u307e\u305f\u306f\u300cr\u300d\uff08relaxed\uff1a\u7de9\u548c\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u300cr\u300d\u3067\u3059\u3002<\/li>\n<li><strong>aspf\uff08SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\uff09<\/strong>\uff1a\u4efb\u610f\u30bf\u30b0\u3002\u300cs\u300d\uff08strict\uff1a\u53b3\u683c\uff09\u307e\u305f\u306f\u300cr\u300d\uff08relaxed\uff1a\u7de9\u548c\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u300cr\u300d\u3067\u3059\u3002<\/li>\n<\/ul>\n<\/div>\n<h3>\u5b9f\u8df5\u7684\u306aDMARC\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u4f8b<\/h3>\n<h4><strong>\u5c0e\u5165\u521d\u671f\uff08\u76e3\u8996\u30d5\u30a7\u30fc\u30ba\uff09\u306e\u30ec\u30b3\u30fc\u30c9\u4f8b<\/strong><\/h4>\n<pre><code>v=DMARC1; p=none; rua=mailto:dmarc-report@example.com\r\n<\/code><\/pre>\n<p>\u307e\u305a\u306fp=none\u3067\u8a2d\u5b9a\u3057\u3001rua\u30bf\u30b0\u3067\u30ec\u30dd\u30fc\u30c8\u306e\u9001\u4fe1\u5148\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u6bb5\u968e\u3067\u306f\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u306b\u306f\u4e00\u5207\u5f71\u97ff\u3092\u4e0e\u3048\u305a\u3001\u8a8d\u8a3c\u72b6\u6cc1\u306e\u53ef\u8996\u5316\u306b\u96c6\u4e2d\u3057\u307e\u3059\u3002<\/p>\n<h4><strong>\u79fb\u884c\u6bb5\u968e\uff08\u9694\u96e2\u30d5\u30a7\u30fc\u30ba\uff09\u306e\u30ec\u30b3\u30fc\u30c9\u4f8b<\/strong><\/h4>\n<pre><code>v=DMARC1; p=quarantine; pct=25; rua=mailto:dmarc-report@example.com\r\n<\/code><\/pre>\n<p>p=quarantine\u306b\u5909\u66f4\u3057\u3001pct\u30bf\u30b0\u3067\u6700\u521d\u306f25%\u306e\u9069\u7528\u7387\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u307e\u3059\u3002\u554f\u984c\u304c\u306a\u3051\u308c\u307050%\u300175%\u3001100%\u3068\u6bb5\u968e\u7684\u306b\u5f15\u304d\u4e0a\u3052\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h4><strong>\u6700\u7d42\u6bb5\u968e\uff08\u62d2\u5426\u30d5\u30a7\u30fc\u30ba\uff09\u306e\u30ec\u30b3\u30fc\u30c9\u4f8b<\/strong><\/h4>\n<pre><code>v=DMARC1; p=reject; rua=mailto:dmarc-report@example.com; adkim=s; aspf=s\r\n<\/code><\/pre>\n<p>p=reject\u306b\u8a2d\u5b9a\u3057\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u3082strict\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u6700\u3082\u53b3\u683c\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<p>DMARC\u306e\u5177\u4f53\u7684\u306a\u8a2d\u5b9a\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u4f75\u305b\u3066\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/dmarc-setup-guide\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/02\/dmarc-setup-guide.jpg\" alt=\"DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5\u30925\u5206\u3067\u7406\u89e3\uff01\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u304b\u3089\u78ba\u8a8d\u624b\u9806\u307e\u3067\u5fb9\u5e95\u89e3\u8aac\" width=\"90\" height=\"49\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5\u30925\u5206\u3067\u7406\u89e3\uff01\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u304b\u3089\u78ba\u8a8d\u624b\u9806\u307e\u3067\u5fb9\u5e95\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u300cDMARC\uff08\u30c7\u30a3\u30fc\u30de\u30fc\u30af\uff09\u306e\u8a2d\u5b9a\u306f\u304a\u6e08\u307f\u3067\u3059\u304b\uff1f\u300d\u3082\u3057\u3001\u3053\u306e\u8cea\u554f\u306b\u5373\u7b54\u3067\u304d\u306a\u3044\u3001\u3042\u308b\u3044\u306f\u300cSPF\u3068DKIM\u306f\u3084\u3063\u305f\u3051\u3069\u3001DMARC\u306f\u307e\u3060\u2026\u300d\u3068\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>DMARC\u30dd\u30ea\u30b7\u30fc\u3092none\u304b\u3089reject\u3078\u5b89\u5168\u306b\u79fb\u884c\u3059\u308b5\u3064\u306e\u30b9\u30c6\u30c3\u30d7<\/h2>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u79fb\u884c\u306f\u3001\u614e\u91cd\u304b\u3064\u6bb5\u968e\u7684\u306b\u9032\u3081\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3044\u304d\u306a\u308areject\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u307e\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3057\u307e\u3046\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u5b89\u5168\u306b\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316\u3059\u308b\u305f\u3081\u306e5\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>STEP 1\uff1aSPF\u3068DKIM\u306e\u4e8b\u524d\u8a2d\u5b9a\u3092\u5b8c\u4e86\u3059\u308b<\/h3>\n<p>DMARC\u306e\u5c0e\u5165\u306b\u5148\u7acb\u3061\u3001\u307e\u305a\u306fSPF\u3068DKIM\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002DMARC\u306fSPF\u3068DKIM\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u57fa\u76e4\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u305f\u3081\u3001\u3053\u308c\u3089\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070DMARC\u3082\u6a5f\u80fd\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>SPF\u306b\u3064\u3044\u3066\u306f\u3001\u81ea\u793e\u306e\u6b63\u898f\u30e1\u30fc\u30eb\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u3059\u3079\u3066DNS\u306eSPF\u30ec\u30b3\u30fc\u30c9\u306b\u767b\u9332\u3057\u307e\u3059\u3002\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3084CRM\u3001MA\u30c4\u30fc\u30eb\u306a\u3069\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u6d17\u3044\u51fa\u3059\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002DKIM\u306b\u3064\u3044\u3066\u306f\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u3067\u79d8\u5bc6\u9375\u3092\u4f7f\u3063\u3066\u7f72\u540d\u3092\u884c\u3044\u3001DNS\u306b\u516c\u958b\u9375\u3092\u767b\u9332\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306bDKIM\u8a2d\u5b9a\u306e\u624b\u9806\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><span style=\"color: #ff0000;\"><strong>SPF\u3068DKIM\u306e\u8a2d\u5b9a\u5b8c\u4e86\u5f8c\u3001DMARC\u306e\u8a2d\u5b9a\u307e\u306748\u6642\u9593\u4ee5\u4e0a\u306e\u9593\u9694\u3092\u7a7a\u3051\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059<\/strong><\/span>\u3002\u3053\u308c\u306fDNS\u306e\u4f1d\u64ad\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<h3>STEP 2\uff1ap=none\u3067\u76e3\u8996\u3092\u958b\u59cb\u3057DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u5206\u6790\u3059\u308b<\/h3>\n<p>SPF\u3068DKIM\u306e\u8a2d\u5b9a\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u3092p=none\u3067\u8ffd\u52a0\u3057\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u53ce\u96c6\u3092\u958b\u59cb\u3057\u307e\u3059\u3002<\/p>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306f\u3001\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u30fc\u304b\u3089XML\u5f62\u5f0f\u3067\u9001\u4fe1\u3055\u308c\u308b\u305f\u3081\u3001\u305d\u306e\u307e\u307e\u8aad\u307f\u89e3\u304f\u306b\u306f\u5c02\u9580\u77e5\u8b58\u304c\u5fc5\u8981\u3067\u3059\u3002DMARC\u30ec\u30dd\u30fc\u30c8\u89e3\u6790\u30c4\u30fc\u30eb\uff08dmarcian\u3001Valimail\u3001PowerDMARC\u306a\u3069\uff09\u3092\u6d3b\u7528\u3057\u3066\u3001\u8996\u899a\u7684\u306b\u308f\u304b\u308a\u3084\u3059\u3044\u5f62\u3067\u8a8d\u8a3c\u72b6\u6cc1\u3092\u628a\u63e1\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u6bb5\u968e\u3067\u78ba\u8a8d\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u9001\u4fe1\u5143\uff08\u30b5\u30fc\u30d0\u30fc\u3001\u30b5\u30fc\u30d3\u30b9\uff09\u3092\u7279\u5b9a\u3067\u304d\u3066\u3044\u308b\u304b<\/li>\n<li>\u5404\u9001\u4fe1\u5143\u306eSPF\u30fbDKIM\u8a8d\u8a3c\u304c\u6210\u529f\u3057\u3066\u3044\u308b\u304b<\/li>\n<li>\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u6b63\u3057\u304f\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b<\/li>\n<li>\u4e0d\u6b63\u306a\u9001\u4fe1\u5143\uff08\u306a\u308a\u3059\u307e\u3057\uff09\u304b\u3089\u306e\u9001\u4fe1\u304c\u306a\u3044\u304b<\/li>\n<\/ul>\n<\/div>\n<p>\u4e00\u822c\u7684\u306b\u3001p=none\u3067\u306e\u76e3\u8996\u671f\u9593\u306f<strong>\u6700\u4f4e2\u301c4\u9031\u9593<\/strong>\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u5927\u898f\u6a21\u306a\u7d44\u7e54\u3067\u3042\u308c\u3070\u6570\u304b\u6708\u304b\u304b\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>STEP 3\uff1a\u8a8d\u8a3c\u5931\u6557\u306e\u539f\u56e0\u3092\u7279\u5b9a\u3057\u4fee\u6b63\u3059\u308b<\/h3>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u5206\u6790\u3067\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u304c\u898b\u3064\u304b\u3063\u305f\u5834\u5408\u3001\u305d\u306e\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3066\u4fee\u6b63\u3057\u307e\u3059\u3002<\/p>\n<p>\u3088\u304f\u3042\u308b\u8a8d\u8a3c\u5931\u6557\u306e\u539f\u56e0\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\u306e\u8a2d\u5b9a\u6f0f\u308c<\/strong>\uff1a\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3084SaaS\u88fd\u54c1\u304b\u3089\u306e\u9001\u4fe1\u304cSPF\u30ec\u30b3\u30fc\u30c9\u306b\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u30b1\u30fc\u30b9\u3067\u3059\u3002\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u6d17\u3044\u51fa\u3057\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n<li><strong>DKIM\u306e\u672a\u8a2d\u5b9a<\/strong>\uff1a\u7279\u306b\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001DKIM\u7f72\u540d\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306bDKIM\u8a2d\u5b9a\u306e\u624b\u9806\u3092\u78ba\u8a8d\u3057\u3001\u9069\u5207\u306b\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<li><strong>\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u4e0d\u4e00\u81f4<\/strong>\uff1aSPF\u3084DKIM\u306e\u8a8d\u8a3c\u81ea\u4f53\u306f\u6210\u529f\u3057\u3066\u3082\u3001\u8a8d\u8a3c\u30c9\u30e1\u30a4\u30f3\u3068\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3051\u308c\u3070DMARC\u8a8d\u8a3c\u306f\u5931\u6557\u3057\u307e\u3059\u3002\u7279\u306b\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u7d4c\u7531\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u8d77\u3053\u308a\u3084\u3059\u3044\u554f\u984c\u3067\u3059\u3002<\/li>\n<li><strong>\u30e1\u30fc\u30eb\u8ee2\u9001\u306b\u3088\u308b\u8a8d\u8a3c\u5931\u6557<\/strong>\uff1a\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u3084\u81ea\u52d5\u8ee2\u9001\u3092\u7d4c\u7531\u3057\u305f\u30e1\u30fc\u30eb\u306f\u3001SPF\u306e\u8a8d\u8a3c\u304c\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001DKIM\u3067\u306e\u8a8d\u8a3c\u3092\u30d1\u30b9\u3055\u305b\u308b\u3053\u3068\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div>\n<h3>STEP 4\uff1ap=quarantine\u3078\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3059\u308b<\/h3>\n<p>\u8a8d\u8a3c\u5931\u6557\u306e\u539f\u56e0\u3092\u3059\u3079\u3066\u4fee\u6b63\u3057\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3067\u6b63\u898f\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u304c\u5b89\u5b9a\u3057\u3066\u6210\u529f\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u305f\u3089\u3001\u30dd\u30ea\u30b7\u30fc\u3092p=quarantine\u306b\u79fb\u884c\u3057\u307e\u3059\u3002\u3044\u304d\u306a\u308a100%\u306b\u9069\u7528\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001<strong>pct\u30bf\u30b0\u3092\u6d3b\u7528\u3057\u3066\u6bb5\u968e\u7684\u306b\u9069\u7528\u7387\u3092\u5f15\u304d\u4e0a\u3052\u308b<\/strong>\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<pre><code>v=DMARC1; p=quarantine; pct=10; rua=mailto:dmarc-report@example.com\r\n<\/code><\/pre>\n<p>\u307e\u305a\u306f10%\u304b\u3089\u958b\u59cb\u3057\u30011\u301c2\u9031\u9593\u3054\u3068\u306b\u30ec\u30dd\u30fc\u30c8\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089\u300125%\u219250%\u219275%\u2192100%\u3068\u6bb5\u968e\u7684\u306b\u5f15\u304d\u4e0a\u3052\u307e\u3059\u3002\u5404\u6bb5\u968e\u3067\u6b63\u898f\u30e1\u30fc\u30eb\u3078\u306e\u5f71\u97ff\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u6b21\u306b\u9032\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>STEP 5\uff1ap=reject\u3078\u6700\u7d42\u79fb\u884c\u3059\u308b<\/h3>\n<p>p=quarantine\u3067pct=100%\u306e\u72b6\u614b\u3067\u5341\u5206\u306a\u671f\u9593\u904b\u7528\u3057\u3001\u8aa4\u5224\u5b9a\u304c\u306a\u3044\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u305f\u3089\u3001\u6700\u7d42\u7684\u306bp=reject\u3078\u79fb\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>p=reject\u3078\u306e\u79fb\u884c\u6642\u3082\u3001pct\u30bf\u30b0\u3092\u6d3b\u7528\u3057\u3066\u6bb5\u968e\u7684\u306b\u9032\u3081\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002reject\u79fb\u884c\u5f8c\u3082DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u76e3\u8996\u3092\u7d99\u7d9a\u3057\u3001\u65b0\u3057\u3044\u9001\u4fe1\u5143\u306e\u8ffd\u52a0\u3084\u8a2d\u5b9a\u5909\u66f4\u304c\u3042\u3063\u305f\u5834\u5408\u306b\u306f\u901f\u3084\u304b\u306b\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u66f4\u65b0\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001<strong>reject\u79fb\u884c\u524d\u306b\u306f\u793e\u5185\u95a2\u4fc2\u8005\u3078\u306e\u5468\u77e5\u3068\u5408\u610f\u3092\u53d6\u308b<\/strong>\u3053\u3068\u3082\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u7279\u306b\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u90e8\u9580\u3084\u30ab\u30b9\u30bf\u30de\u30fc\u30b5\u30dd\u30fc\u30c8\u90e8\u9580\u306a\u3069\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u95a2\u308f\u308b\u3059\u3079\u3066\u306e\u90e8\u9580\u306b\u5f71\u97ff\u3092\u8aac\u660e\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>DMARC\u30dd\u30ea\u30b7\u30fc\u8a2d\u5b9a\u3067\u3088\u304f\u3042\u308b\u5931\u6557\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<p>DMARC\u306e\u8a2d\u5b9a\u306f\u4e00\u898b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u304c\u3001\u5b9f\u52d9\u3067\u306f\u601d\u308f\u306c\u843d\u3068\u3057\u7a74\u306b\u906d\u9047\u3059\u308b\u30b1\u30fc\u30b9\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u3001\u3088\u304f\u3042\u308b\u5931\u6557\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u5bfe\u51e6\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>p=none\u306e\u307e\u307e\u653e\u7f6e\u3057\u3066\u3057\u307e\u3046<\/h3>\n<p>\u6700\u3082\u591a\u3044\u5931\u6557\u30d1\u30bf\u30fc\u30f3\u304c\u3001p=none\u3067\u8a2d\u5b9a\u3057\u305f\u5f8c\u3001\u305d\u306e\u307e\u307e\u4f55\u304b\u6708\u3082\u653e\u7f6e\u3057\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u3067\u3059\u3002p=none\u306e\u72b6\u614b\u3067\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306b\u5bfe\u3059\u308b\u9632\u5fa1\u52b9\u679c\u306f\u4e00\u5207\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>DMARC\u306f<strong>\u5c0e\u5165\u3057\u3066\u7d42\u308f\u308a\u3067\u306f\u306a\u304f\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u6bb5\u968e\u7684\u306b\u5f37\u5316\u3057\u3066\u521d\u3081\u3066\u672c\u6765\u306e\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059<\/strong>\u3002p=none\u306f\u3042\u304f\u307e\u3067\u30ec\u30dd\u30fc\u30c8\u53ce\u96c6\u306e\u305f\u3081\u306e\u6e96\u5099\u6bb5\u968e\u3067\u3042\u308a\u3001\u901f\u3084\u304b\u306bquarantine\u3084reject\u3078\u306e\u79fb\u884c\u8a08\u753b\u3092\u7acb\u3066\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u516c\u958b\u60c5\u5831\u3067\u3042\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u610f\u8b58\u3092\u5bfe\u5916\u7684\u306b\u793a\u3059\u3082\u306e\u3067\u3082\u3042\u308a\u307e\u3059\u3002p=none\u306e\u307e\u307e\u3067\u306f\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u4e0d\u5341\u5206\u306a\u7d44\u7e54\u300d\u3068\u3044\u3046\u5370\u8c61\u3092\u4e0e\u3048\u304b\u306d\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\u6f0f\u308c<\/h3>\n<p>DMARC\u306ep=reject\u3092\u8a2d\u5b9a\u3057\u3066\u3082\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u30dd\u30ea\u30b7\u30fc\uff08sp=\u30bf\u30b0\uff09\u3092none\u306b\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u7d4c\u7531\u3057\u305f\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002sp\u30bf\u30b0\u3092\u660e\u793a\u7684\u306b\u8a2d\u5b9a\u3059\u308b\u304b\u3001\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u306fp\u30bf\u30b0\u306e\u5024\u304c\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u3082\u9069\u7528\u3055\u308c\u308b\u3053\u3068\u3092\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u306e\u8a8d\u8a3c\u8a2d\u5b9a\u6f0f\u308c<\/h3>\n<p>\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u30e1\u30fc\u30eb\u306fDMARC\u8a8d\u8a3c\u3092\u30d1\u30b9\u3057\u3066\u3044\u3066\u3082\u3001\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3084CRM\u3001MA\u30c4\u30fc\u30eb\u306a\u3069\u304b\u3089\u306e\u9001\u4fe1\u304c\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u68da\u5378\u3057\u3057\u3001\u305d\u308c\u305e\u308c\u306eSPF\u30fbDKIM\u8a2d\u5b9a\u3092\u78ba\u8a8d\u30fb\u4fee\u6b63\u3057\u3066\u304b\u3089\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h3>DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u6d3b\u7528\u3067\u304d\u3066\u3044\u306a\u3044<\/h3>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306fXML\u5f62\u5f0f\u3067\u5c4a\u304f\u305f\u3081\u3001\u305d\u306e\u307e\u307e\u8aad\u307f\u89e3\u304f\u3053\u3068\u304c\u96e3\u3057\u304f\u3001\u7d50\u679c\u3068\u3057\u3066\u30ec\u30dd\u30fc\u30c8\u3092\u78ba\u8a8d\u3057\u306a\u3044\u307e\u307e\u653e\u7f6e\u3057\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002DMARC\u30ec\u30dd\u30fc\u30c8\u89e3\u6790\u30c4\u30fc\u30eb\u3092\u5c0e\u5165\u3057\u3066\u3001\u8a8d\u8a3c\u72b6\u6cc1\u3092\u5b9a\u671f\u7684\u306b\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u904b\u7528\u4f53\u5236\u3092\u69cb\u7bc9\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u3067\u5f97\u3089\u308c\u308b\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u5207\u306b\u5f37\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9762\u3060\u3051\u3067\u306a\u304f\u3001\u30d3\u30b8\u30cd\u30b9\u9762\u3067\u3082\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3>\u306a\u308a\u3059\u307e\u3057\u30fb\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306e\u9632\u6b62<\/h3>\n<p>p=quarantine\u307e\u305f\u306fp=reject\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u60aa\u7528\u3057\u305f\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u8005\u306b\u5c4a\u304f\u524d\u306b\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u9867\u5ba2\u3084\u53d6\u5f15\u5148\u304c\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306e\u88ab\u5bb3\u306b\u906d\u3046\u30ea\u30b9\u30af\u3092\u5927\u5e45\u306b\u4f4e\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001p=reject\u307e\u305f\u306fp=quarantine\u306b\u79fb\u884c\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u3067\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u304c\u6210\u529f\u3057\u306a\u3044\u3053\u3068\u304b\u3089\u3001<strong>\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u81ea\u4f53\u304c\u653b\u6483\u306b\u4f7f\u308f\u308c\u308b\u53ef\u80fd\u6027\u304c\u4f4e\u304f\u306a\u308b<\/strong>\u3068\u3044\u3046\u30e1\u30ea\u30c3\u30c8\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u5230\u9054\u7387\u306e\u5411\u4e0a<\/h3>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3057\u3001SPF\u30fbDKIM\u306e\u8a8d\u8a3c\u3082\u6b63\u3057\u304f\u69cb\u6210\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u4fe1\u983c\u5ea6\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u308b\u30ea\u30b9\u30af\u304c\u4e0b\u304c\u308a\u3001<strong>\u30e1\u30fc\u30eb\u5230\u9054\u7387\u306e\u6539\u5584<\/strong>\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<h3>BIMI\u306b\u3088\u308b\u30d6\u30e9\u30f3\u30c9\u8a8d\u77e5\u306e\u5411\u4e0a<\/h3>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3092quarantine\u4ee5\u4e0a\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001BIMI\uff08Brand Indicators for Message Identification\uff09\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002BIMI\u3092\u5c0e\u5165\u3059\u308b\u3068\u3001\u53d7\u4fe1\u8005\u306e\u30e1\u30fc\u30eb\u4e00\u89a7\u753b\u9762\u3067\u9001\u4fe1\u8005\u540d\u306e\u6a2a\u306b\u81ea\u793e\u306e\u516c\u5f0f\u30ed\u30b4\u30de\u30fc\u30af\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002BIMI\u304c\u3082\u305f\u3089\u3059\u52b9\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u8996\u8a8d\u6027\u306e\u5411\u4e0a<\/strong>\uff1a\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u304c\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u306e\u958b\u5c01\u7387\u304c\u6539\u5584\u3055\u308c\u308b<\/li>\n<li><strong>\u4fe1\u983c\u306e\u8a3c\u660e<\/strong>\uff1a\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3092\u5fb9\u5e95\u3057\u3066\u3044\u308b\u300c\u5b89\u5168\u306a\u30c9\u30e1\u30a4\u30f3\u300d\u3067\u3042\u308b\u3053\u3068\u306e\u8a3c\u660e\u306b\u306a\u308b<\/li>\n<li><strong>\u30d6\u30e9\u30f3\u30c9\u9732\u51fa<\/strong>\uff1a\u30e1\u30fc\u30eb\u3092\u958b\u5c01\u3059\u308b\u524d\u304b\u3089\u30e6\u30fc\u30b6\u30fc\u306e\u76ee\u306b\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u304c\u89e6\u308c\u308b\u305f\u3081\u3001\u7d99\u7d9a\u7684\u306a\u30d6\u30e9\u30f3\u30c9\u9732\u51fa\u306b\u3064\u306a\u304c\u308b<\/li>\n<\/ul>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u304c\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u52b9\u679c\u306b\u76f4\u7d50\u3059\u308b\u70b9\u306f\u3001\u7d4c\u55b6\u5c64\u3078\u306e\u8aac\u660e\u6750\u6599\u3068\u3057\u3066\u3082\u6709\u52b9\u3067\u3059\u3002<\/p>\n<p>BIMI\u306b\u3064\u3044\u3066\u306e\u8a73\u7d30\u306f\u3001BIM\u306e\u30e1\u30ea\u30c3\u30c8\u304b\u3089\u5c0e\u5165\u307e\u3067\u306e\u30b9\u30c6\u30c3\u30d7\u3001\u5931\u6557\u3057\u306a\u3044\u305f\u3081\u306eDMARC\u79fb\u884c\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u3001BIMI\u8a2d\u5b9a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u307e\u3067\u3092\u307e\u3068\u3081\u305fBIMI\u5b8c\u5168\u30ac\u30a4\u30c9\u3092\u7121\u6599\u3067\u3054\u7528\u610f\u3057\u307e\u3057\u305f\u306e\u3067\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001BIMI\u306b\u3064\u3044\u3066\u306e\u304a\u554f\u3044\u5408\u308f\u305b\u3084\u3054\u76f8\u8ac7\u3082\u53ef\u80fd\u3067\u3059\u306e\u3067\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi-doc\" target=\"_blank\" rel=\"noopener\">&gt;&gt;BIMI\u5b8c\u5168\u30ac\u30a4\u30c9\u3092\u7121\u6599\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b<\/a><\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi\" target=\"_blank\" rel=\"noopener\">&gt;&gt;BIMI\u5c0e\u5165\u306b\u3064\u3044\u3066\u7121\u6599\u3067\u76f8\u8ac7\u30fb\u554f\u3044\u5408\u308f\u305b\u3059\u308b<\/a><\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi-doc\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/06\/unnamed-1.jpg\" alt=\"bimi\u5b8c\u5168\u30ac\u30a4\u30c9\" width=\"1024\" height=\"373\" class=\"alignnone wp-image-21292 size-full\" \/><\/a><\/p>\n<h3>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u5bfe\u5fdc<\/h3>\n<p>\u91d1\u878d\u696d\u754c\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u5404\u696d\u754c\u3067\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u304c\u898f\u5236\u3084\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u3057\u3066\u6c42\u3081\u3089\u308c\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u65e5\u672c\u8a3c\u5238\u696d\u5354\u4f1a\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u300creject\u300d\u306b\u3059\u308b\u3053\u3068\u304c\u5bfe\u5fdc\u5fc5\u8981\u4e8b\u9805\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u7dcf\u52d9\u7701\u304b\u3089\u3082\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u5bfe\u7b56\u306e\u5f37\u5316\u306b\u95a2\u3059\u308b\u8981\u8acb\u304c\u51fa\u3055\u308c\u3066\u304a\u308a\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\uff08\u9694\u96e2\u30fb\u62d2\u5426\uff09\u304c\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\u306b\u306f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u6d3b\u7528\u304c\u304a\u3059\u3059\u3081<\/h2>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\u3068\u904b\u7528\u3092\u78ba\u5b9f\u306b\u884c\u3046\u305f\u3081\u306b\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u306b\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u6d3b\u7528\u304c\u52b9\u679c\u7684\u3067\u3059\u3002\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u914d\u4fe1\u57fa\u76e4\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8a8d\u8a3c\u8a2d\u5b9a\u306e\u624b\u9593\u3092\u8efd\u6e1b\u3057\u3001\u9ad8\u3044\u5230\u9054\u7387\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u3092\u9032\u3081\u308b\u3046\u3048\u3067\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u306b\u306f\u5927\u304d\u306a\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>SPF\u30fbDKIM\u30fbDMARC\u306e\u8a8d\u8a3c\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u57fa\u76e4\u304c\u6574\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u8a2d\u5b9a\u30df\u30b9\u306b\u3088\u308b\u8a8d\u8a3c\u5931\u6557\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3067\u304d\u308b<\/li>\n<li>\u9ad8\u3044IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u7dad\u6301\u3055\u308c\u3066\u304a\u308a\u3001\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u304c\u5b89\u5b9a\u3059\u308b<\/li>\n<li>\u5927\u91cf\u914d\u4fe1\u6642\u306b\u3082Gmail\u3084Yahoo!\u30e1\u30fc\u30eb\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u6e96\u62e0\u3057\u305f\u914d\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308b<\/li>\n<\/ul>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3092quarantine\u3084reject\u306b\u5f37\u5316\u3059\u308b\u969b\u306b\u306f\u3001\u81ea\u793e\u306e\u9001\u4fe1\u57fa\u76e4\u304c\u3053\u308c\u3089\u306e\u8a8d\u8a3c\u3092\u78ba\u5b9f\u306b\u30d1\u30b9\u3059\u308b\u72b6\u614b\u3067\u3042\u308b\u3053\u3068\u304c\u524d\u63d0\u3068\u306a\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u524d\u63d0\u6761\u4ef6\u3092\u52b9\u7387\u7684\u306b\u6574\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/h3>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/07\/blastmail-top.jpg\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1200\" height=\"630\" class=\"alignnone wp-image-15955 size-full\" \/><\/a><\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\uff08blastmail\uff09\u306f\u300115\u5e74\u9023\u7d9a\u3067\u5c0e\u5165\u793e\u6570\u30b7\u30a7\u30a2No.1\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\u65e5\u672c\u6700\u5927\u7d1a\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u300227,000\u793e\u4ee5\u4e0a\u306e\u5c0e\u5165\u5b9f\u7e3e\u306b\u88cf\u6253\u3061\u3055\u308c\u305f\u9ad8\u3044\u5230\u9054\u7387\u3068\u3001\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u76f4\u611f\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u7ba1\u7406\u753b\u9762\u304c\u6700\u5927\u306e\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u5bfe\u7b56\uff08SPF\/DKIM\uff09<\/strong>\uff1aSPF\u30fbDKIM\u306b\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u306b\u5fc5\u8981\u306a\u8a8d\u8a3c\u57fa\u76e4\u304c\u6574\u3063\u3066\u3044\u308b<\/li>\n<li><strong>Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc<\/strong>\uff1aGmail\u3084Yahoo!\u30e1\u30fc\u30eb\u306a\u3069\u4e3b\u8981\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u6700\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u57fa\u76e4\u3092\u63d0\u4f9b<\/li>\n<li><strong>\u52b9\u679c\u6e2c\u5b9a<\/strong>\uff1a\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u78ba\u8a8d\u3067\u304d\u3001\u8a8d\u8a3c\u72b6\u6cc1\u306e\u628a\u63e1\u306b\u3082\u5f79\u7acb\u3064<\/li>\n<li><strong>\u696d\u754c\u6700\u5b89\u30af\u30e9\u30b9\u306e\u6599\u91d1<\/strong>\uff1a\u6708\u984d4,000\u5186\u301c\u3067\u5927\u898f\u6a21\u914d\u4fe1\u3082\u4f4e\u30b3\u30b9\u30c8\u3067\u5b9f\u73fe\uff08\u914d\u4fe1\u901a\u6570\u7121\u5236\u9650\uff09<\/li>\n<\/ul>\n<\/div>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u3068\u4f75\u305b\u3066\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5230\u9054\u7387\u3068\u52b9\u679c\u3092\u6700\u5927\u5316\u3057\u305f\u3044\u4f01\u696d\u306b\u6700\u9069\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3067\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> \u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastmail.jp\/\">\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/a><\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastengine\u300d<\/h3>\n<p><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/10\/blastengine.jpg\" alt=\"blastengine\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1303\" height=\"590\" class=\"alignnone wp-image-19575 size-full\" \/><\/a><\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff08blastengine\uff09\u306f\u3001\u304a\u5ba2\u69d8\u306e\u30b7\u30b9\u30c6\u30e0\u3068SMTP\u30ea\u30ec\u30fc\u3084API\u3067\u9023\u643a\u3059\u308b\u3053\u3068\u3067\u3001\u4e00\u6589\u914d\u4fe1\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3092\u7c21\u5358\u306b\u884c\u3048\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u904b\u7528\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306f\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u5074\u3067\u884c\u3046\u305f\u3081\u3001\u5e38\u306b\u9ad8\u3044IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u9762\u5012\u306a\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u696d\u52d9\u304b\u3089\u89e3\u653e\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\/DKIM\/DMARC\u5bfe\u5fdc<\/strong>\uff1a\u6700\u65b0\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u6280\u8853\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u56de\u907f<\/li>\n<li><strong>99%\u4ee5\u4e0a\u306e\u9ad8\u3044\u30e1\u30fc\u30eb\u5230\u9054\u7387<\/strong>\uff1a\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u30fbISP\u3078\u306e\u500b\u5225\u9001\u4fe1\u30ed\u30b8\u30c3\u30af\u3067\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b<\/li>\n<li><strong>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc<\/strong>\uff1a\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u7d44\u307f\u8fbc\u307f\u304c\u5bb9\u6613\u3067\u3001\u6700\u77ed\u5f53\u65e5\u304b\u3089\u5229\u7528\u958b\u59cb\u53ef\u80fd<\/li>\n<li><strong>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc<\/strong>\uff1a\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u904b\u7528\u8ca0\u8377\u3092\u5927\u5e45\u306b\u524a\u6e1b<\/li>\n<li><strong>\u696d\u754c\u6700\u5b89\u30af\u30e9\u30b9\u306e\u6599\u91d1<\/strong>\uff1a\u521d\u671f\u8cbb\u7528\u7121\u6599\u3001\u6708\u984d3,000\u5186\u301c\u3067\u5927\u91cf\u914d\u4fe1\u3082\u4f4e\u30b3\u30b9\u30c8\u3067\u5b9f\u73fe<\/li>\n<\/ul>\n<\/div>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u306b\u5408\u308f\u305b\u3066\u3001\u78ba\u5b9f\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u74b0\u5883\u3092\u69cb\u7bc9\u3057\u305f\u3044\u30a8\u30f3\u30b8\u30cb\u30a2\u3084\u30b7\u30b9\u30c6\u30e0\u62c5\u5f53\u8005\u306b\u6700\u9069\u306a\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u5165\u529b\u306e\u307f\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u304c\u53ef\u80fd\u3067\u3059\u306e\u3067\u3001\u307e\u305a\u306f\u6c17\u8efd\u306b\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastengine.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> blastengine\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u516c\u5f0f\u30b5\u30a4\u30c8\uff1ahttps:\/\/blastengine.jp\/<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306f\u3001\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306b\u304a\u3044\u3066\u6700\u3082\u91cd\u8981\u306a\u8a2d\u5b9a\u9805\u76ee\u306e\u4e00\u3064\u3067\u3059\u3002p=none\uff08\u76e3\u8996\uff09\u3001p=quarantine\uff08\u9694\u96e2\uff09\u3001p=reject\uff08\u62d2\u5426\uff09\u306e3\u6bb5\u968e\u304c\u3042\u308a\u3001\u6700\u7d42\u7684\u306b\u306fp=reject\u3092\u76ee\u6307\u3059\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u3044\u304d\u306a\u308areject\u306b\u8a2d\u5b9a\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u3001SPF\u3068DKIM\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u3001p=none\u3067DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u53ce\u96c6\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u30ec\u30dd\u30fc\u30c8\u3092\u5206\u6790\u3057\u3066\u8a8d\u8a3c\u5931\u6557\u306e\u539f\u56e0\u3092\u7279\u5b9a\u30fb\u4fee\u6b63\u3057\u305f\u3089\u3001pct\u30bf\u30b0\u3092\u6d3b\u7528\u3057\u306a\u304c\u3089p=quarantine\u3078\u79fb\u884c\u3057\u307e\u3059\u3002\u5341\u5206\u306a\u76e3\u8996\u671f\u9593\u3092\u7d4c\u3066\u554f\u984c\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3089\u3001\u6700\u7d42\u7684\u306bp=reject\u3078\u79fb\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u3059\u3050\u53d6\u308a\u7d44\u3080\u3079\u304d\u5177\u4f53\u7684\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u306f\u4ee5\u4e0b\u306e3\u3064\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\uff08\u672a\u8a2d\u5b9a\u306e\u5834\u5408\u306fp=none\u3067\u5373\u5ea7\u306b\u8a2d\u5b9a\u3059\u308b\uff09<\/li>\n<li>DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u89e3\u6790\u3057\u3001\u8a8d\u8a3c\u5931\u6557\u306e\u9001\u4fe1\u5143\u3092\u7279\u5b9a\u3057\u3066\u4fee\u6b63\u3059\u308b<\/li>\n<li>\u30dd\u30ea\u30b7\u30fc\u79fb\u884c\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3092\u7b56\u5b9a\u3057\u3001\u6bb5\u968e\u7684\u306bquarantine\u2192reject\u3078\u5f37\u5316\u3059\u308b<\/li>\n<\/ol>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u306f\u3001\u5358\u306a\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u3068\u3069\u307e\u3089\u305a\u3001\u30e1\u30fc\u30eb\u5230\u9054\u7387\u306e\u5411\u4e0a\u3084BIMI\u306b\u3088\u308b\u30d6\u30e9\u30f3\u30c9\u4fa1\u5024\u306e\u5411\u4e0a\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u5bfe\u7b56\u3092\u5148\u5ef6\u3070\u3057\u306b\u305b\u305a\u3001\u4eca\u65e5\u304b\u3089\u53d6\u308a\u7d44\u307f\u3092\u59cb\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">DMARC\u30dd\u30ea\u30b7\u30fc\u306enone\u30fbquarantine\u30fbreject\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1anone\u306f\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3082\u901a\u5e38\u901a\u308a\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3059\u308b\u76e3\u8996\u30e2\u30fc\u30c9\u3067\u3059\u3002quarantine\u306f\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u307e\u3059\u3002reject\u306f\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u5b8c\u5168\u306b\u53d7\u4fe1\u62d2\u5426\u3057\u307e\u3059\u3002\u5c0e\u5165\u6642\u306fnone\u304b\u3089\u59cb\u3081\u3001\u6bb5\u968e\u7684\u306breject\u307e\u3067\u5f37\u5316\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u3044\u304d\u306a\u308areject\u306b\u8a2d\u5b9a\u3057\u3066\u3082\u5927\u4e08\u592b\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u3044\u304d\u306a\u308areject\u306b\u8a2d\u5b9a\u3059\u308b\u306e\u306f\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002SPF\u3084DKIM\u306e\u8a2d\u5b9a\u6f0f\u308c\u304c\u3042\u308b\u3068\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u307e\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u307e\u305a\u306fp=none\u3067DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u53ce\u96c6\u30fb\u5206\u6790\u3057\u3001\u3059\u3079\u3066\u306e\u6b63\u898f\u9001\u4fe1\u5143\u306e\u8a8d\u8a3c\u304c\u6210\u529f\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u3001quarantine\u2192reject\u306e\u9806\u3067\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/dd>\n<dt class=\"blog-faq__question\">DMARC\u30dd\u30ea\u30b7\u30fc\u306epct\u30bf\u30b0\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1apct\u30bf\u30b0\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u7528\u3059\u308b\u30e1\u30fc\u30eb\u306e\u5272\u5408\u30920\u301c100%\u3067\u6307\u5b9a\u3059\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3059\u3002\u4f8b\u3048\u3070\u300cpct=25\u300d\u3068\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e25%\u306b\u306e\u307f\u30dd\u30ea\u30b7\u30fc\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u30dd\u30ea\u30b7\u30fc\u3092quarantine\u3084reject\u306b\u79fb\u884c\u3059\u308b\u969b\u3001\u307e\u305a\u306f\u5c11\u306a\u3044\u5272\u5408\u304b\u3089\u59cb\u3081\u3066\u6bb5\u968e\u7684\u306b\u5f15\u304d\u4e0a\u3052\u308b\u3053\u3068\u3067\u3001\u6b63\u898f\u30e1\u30fc\u30eb\u3078\u306e\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316\u3059\u308b\u3068BIMI\u3092\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u306f\u3044\u3002BIMI\uff08Brand Indicators for Message Identification\uff09\u3092\u5c0e\u5165\u3059\u308b\u306b\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u304cp=quarantine\u307e\u305f\u306fp=reject\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u524d\u63d0\u6761\u4ef6\u3067\u3059\u3002BIMI\u3092\u6709\u52b9\u306b\u3059\u308b\u3068\u3001\u53d7\u4fe1\u8005\u306e\u30e1\u30fc\u30eb\u4e00\u89a7\u753b\u9762\u306b\u81ea\u793e\u306e\u516c\u5f0f\u30ed\u30b4\u30de\u30fc\u30af\u304c\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u958b\u5c01\u7387\u306e\u5411\u4e0a\u3084\u30d6\u30e9\u30f3\u30c9\u8a8d\u77e5\u5ea6\u306e\u5411\u4e0a\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">DMARC\u306e\u8a2d\u5b9a\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aDMARC\u3092\u8a2d\u5b9a\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u304b\u3089Gmail\u306a\u3069DMARC\u5bfe\u5fdc\u30d7\u30ed\u30d0\u30a4\u30c0\u5b9b\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3001\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u300cAuthentication-Results\u300d\u30d8\u30c3\u30c0\u30fc\u5185\u306edmarc=\u306e\u5024\u304c\u300cpass\u300d\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u6b63\u5e38\u306b\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u7121\u6599\u306eDMARC\u30c1\u30a7\u30c3\u30af\u30c4\u30fc\u30eb\uff08MXToolbox\u3001dmarcian\u306a\u3069\uff09\u3092\u4f7f\u3063\u3066DNS\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/dd>\n<\/dl><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Gmail\u3084Yahoo!\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u53b3\u683c\u5316\u3055\u308c\u3001DMARC\uff08\u30c7\u30a3\u30fc\u30de\u30fc\u30af\uff09\u306e\u8a2d\u5b9a\u306f\u30e1&#8230;<\/p>\n","protected":false},"author":8,"featured_media":21434,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-21430","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-spam"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/21430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/comments?post=21430"}],"version-history":[{"count":3,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/21430\/revisions"}],"predecessor-version":[{"id":21441,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/21430\/revisions\/21441"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media\/21434"}],"wp:attachment":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media?parent=21430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/categories?post=21430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/tags?post=21430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}