{"id":26204,"date":"2025-12-02T23:23:30","date_gmt":"2025-12-02T23:23:30","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=26204"},"modified":"2025-12-02T23:23:30","modified_gmt":"2025-12-02T23:23:30","slug":"%e7%ac%ac1%e5%9b%9e%ef%bc%9a%e9%a1%a7%e5%ae%a2%e3%81%a8%e8%87%aa%e7%a4%be%e3%83%96%e3%83%a9%e3%83%b3%e3%83%89%e3%82%92%e3%81%aa%e3%82%8a%e3%81%99%e3%81%be%e3%81%97%e3%81%8b%e3%82%89","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/26204\/","title":{"rendered":"\u7b2c1\u56de\uff1a\u9867\u5ba2\u3068\u81ea\u793e\u30d6\u30e9\u30f3\u30c9\u3092\u201c\u306a\u308a\u3059\u307e\u3057\u201d\u304b\u3089\u5b88\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u6bb5\u968e\u7684\u5f15\u304d\u4e0a\u3052\u3010DMARC\u30dd\u30ea\u30b7\u30fc\u5f15\u304d\u4e0a\u3052\u30ac\u30a4\u30c9\u3011 &#8211; INTERNET Watch"},"content":{"rendered":"\n<\/p>\n<div id=\"contents-section-2\">\n<h2 class=\"hdg-03\"><span>\u3044\u307e\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u304c\u6025\u52d9\u306a\u7406\u7531<\/span><\/h2>\n<p> \u3000\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306e\u5831\u544a\u4ef6\u6570\u30fb\u88ab\u5bb3\u984d\u306f\u5e74\u3005\u5897\u52a0\u62e1\u5927\u3057\u3066\u3044\u307e\u3059\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u5bfe\u7b56\u5354\u8b70\u4f1a\u306b\u3088\u308c\u3070\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306e\u5831\u544a\u4ef6\u6570\u306f2018\u5e74\u306e\u7d042\u4e07\u4ef6\u304b\u30892024\u5e74\u306b\u306f\u7d04170\u4e07\u4ef6\u30012025\u5e74\u306f10\u6708\u306e\u6642\u70b9\u3067210\u4e07\u4ef6\u306b\u9054\u3057\u3066\u304a\u308a\u3001\u88ab\u5bb3\u306e\u88fe\u91ce\u304c\u5e83\u304c\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <\/p>\n<p> \u3000\u3053\u3046\u3057\u305f\u72b6\u6cc1\u3067\u6ce8\u76ee\u3059\u3079\u304d\u306f\u3001\u88ab\u5bb3\u8005\u306f\u91d1\u92ad\u3084\u500b\u4eba\u60c5\u5831\u3092\u643e\u53d6\u3055\u308c\u308b\u30e6\u30fc\u30b6\u30fc\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u81ea\u793e\u306e\u30d6\u30e9\u30f3\u30c9\u3092\u60aa\u7528\u3055\u308c\u308b\u3053\u3068\u3067\u53d6\u5f15\u5148\u3084\u9867\u5ba2\u304b\u3089\u306e\u4fe1\u983c\u3092\u5931\u3063\u3066\u3057\u307e\u3046\u4f01\u696d\u3082\u307e\u305f\u3001\u6df1\u523b\u306a\u88ab\u5bb3\u8005\u3068\u8a00\u3048\u308b\u3053\u3068\u3067\u3059\u3002 <\/p>\n<p> \u3000\u306a\u308a\u3059\u307e\u3057\u306e\u6a19\u7684\u3068\u306a\u308b\u30d6\u30e9\u30f3\u30c9\u306f\u591a\u69d8\u5316\u3057\u3066\u304a\u308a\u3001\u5f93\u6765\u304b\u3089\u72d9\u308f\u308c\u3066\u304d\u305fEC\u30b5\u30a4\u30c8\u3084\u91d1\u878d\u6a5f\u95a2\u306b\u52a0\u3048\u3001\u3053\u308c\u307e\u3067\u3042\u307e\u308a\u6a19\u7684\u306b\u306a\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u696d\u7a2e\u3082\u88ab\u5bb3\u306b\u906d\u3046\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u5bfe\u7b56\u5354\u8b70\u4f1a\u306e\u300c\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30ec\u30dd\u30fc\u30c82025\u300d\u3067\u306f\u3001\u300c\u5f93\u6765\u306f\u72d9\u308f\u308c\u306a\u304b\u3063\u305f\u30d6\u30e9\u30f3\u30c9\u3067\u3082\u3001\u5bfe\u7b56\u304c\u9045\u308c\u4e00\u5ea6\u72d9\u308f\u308c\u308b\u3068\u7d99\u7d9a\u7684\u306b\u6a19\u7684\u306b\u3055\u308c\u308b\u50be\u5411\u304c\u3042\u308b\u300d\u3068\u6307\u6458\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <\/p>\n<p> \u3000\u3055\u3089\u306b\u3001\u6570\u5e74\u524d\u307e\u3067\u306f\u4e0d\u81ea\u7136\u306a\u65e5\u672c\u8a9e\u304c\u6563\u898b\u3055\u308c\u305f\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u3082\u3001\u751f\u6210AI\u306e\u9032\u5316\u306b\u3088\u3063\u3066\u3001\u65e5\u672c\u8a9e\u3092\u6bcd\u8a9e\u3068\u3059\u308b\u4eba\u9593\u304c\u66f8\u3044\u305f\u3082\u306e\u3068\u898b\u5206\u3051\u304c\u3064\u304b\u306a\u3044\u307b\u3069\u81ea\u7136\u3067\u5de7\u5999\u306a\u3082\u306e\u304c\u6025\u5897\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u5074\u306e\u6ce8\u610f\u3084\u52aa\u529b\u3060\u3051\u3067\u88ab\u5bb3\u3092\u9632\u3050\u3053\u3068\u304c\u96e3\u3057\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002 <\/p>\n<p> \u3000\u3060\u304b\u3089\u3053\u305d\u4eca\u3001\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3059\u308b\u4e8b\u696d\u8005\u5074\u304c\u4e3b\u4f53\u3068\u306a\u3063\u305f\u6280\u8853\u7684\u306a\u5bfe\u7b56\u306e\u91cd\u8981\u6027\u304c\u304b\u3064\u3066\u306a\u304f\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002\u672c\u7a3f\u3067\u306f\u3001\u7279\u306b\u52b9\u679c\u7684\u306a\u624b\u6bb5\u3067\u3042\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u6bb5\u968e\u7684\u306a\u5f15\u304d\u4e0a\u3052\u306e\u9032\u3081\u65b9\u3092\u3001\u30e1\u30fc\u30eb\u7ba1\u7406\u8005\u5411\u3051\u306b\u5177\u4f53\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"image-wrap frame-white\">\n<div class=\"inner\">\n<div class=\"row\">\n<div class=\"column\" style=\"width:480px;\">\n<div class=\"img-wrap-h\" style=\"width:480px;height:360px;\">\n<div class=\"img-wrap-w\"><a target=\"_blank\" href=\"https:\/\/internet.watch.impress.co.jp\/img\/iw\/docs\/2064\/089\/html\/image1_o.jpg.html\" class=\"resource\" rel=\"nofollow\"><img decoding=\"async\" src=\"https:\/\/asset.watch.impress.co.jp\/img\/iw\/docs\/2064\/089\/image1_l.jpg\" class=\"resource\" style=\"width:480px;height:360px;\" id=\"image1_l.jpg\"\/><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"contents-section-3\">\n<h2 class=\"hdg-03\"><span>DMARC\u5c0e\u5165\u306e\u610f\u7fa9\uff1a\u88ab\u5bb3\u3092\u672a\u7136\u306b\u9632\u3050\u300c\u30d6\u30e9\u30f3\u30c9\u306e\u9632\u5fa1\u58c1\u300d<\/span><\/h2>\n<p> \u3000\u3067\u306f\u3001\u4e8b\u696d\u8005\u5074\u304c\u4e3b\u4f53\u3068\u306a\u3063\u3066\u9032\u3081\u308b\u3079\u304d\u5bfe\u7b56\u3068\u306f\u3001\u5177\u4f53\u7684\u306b\u4f55\u3067\u3057\u3087\u3046\u304b\u3002\u305d\u306e\u7b54\u3048\u304c\u300c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u300d\u6280\u8853\u306e\u5c0e\u5165\u3068\u9069\u5207\u306a\u904b\u7528\u3067\u3059\u3002 <\/p>\n<p> \u3000\u6700\u8fd1\u3001Gmail\u306a\u3069\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u3001\u9001\u4fe1\u5143\u306b\u4f01\u696d\u306e\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u3092\u76ee\u306b\u3057\u305f\u3053\u3068\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u308c\u306f\u300c\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\u3001Brand Indicators for Message Identification\uff09\u300d\u3068\u547c\u3070\u308c\u308b\u4ed5\u7d44\u307f\u3067\u3001\u8a8d\u8a3c\u3055\u308c\u305f\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3067\u3042\u308b\u3053\u3068\u3092\u8996\u899a\u7684\u306b\u8a3c\u660e\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u3092\u5c0e\u5165\u3057\u305f\u4f01\u696d\u306f\u3001\u9867\u5ba2\u306b\u5bfe\u3057\u300c\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308c\u3070\u672c\u7269\u306e\u30e1\u30fc\u30eb\u3067\u3059\u300d\u3068\u3044\u3046\u3001\u6975\u3081\u3066\u5206\u304b\u308a\u3084\u3059\u3044\u8b58\u5225\u65b9\u6cd5\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p> \u3000\u305d\u3057\u3066\u3001\u3053\u306e\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u7684\u306a\u5927\u524d\u63d0\u3068\u306a\u308b\u306e\u304c\u3001\u672c\u7a3f\u306e\u30c6\u30fc\u30de\u3067\u3042\u308b\u300cDMARC\uff08Domain-based Message Authentication, Reporting, and Conformance\uff09\u300d\u3067\u3059\u3002DMARC\u306f\u3001\u5148\u884c\u3059\u308bSPF\u3084DKIM\u3068\u3044\u3063\u305f\u8a8d\u8a3c\u6280\u8853\u3068\u9023\u643a\u3057\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u9a19\u308b\u4e0d\u6b63\u306a\u30e1\u30fc\u30eb\u3092\u62d2\u5426\u3059\u308b\u5f37\u529b\u306a\u9632\u5fa1\u58c1\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u306f\u3001\u307e\u3055\u306b\u4f01\u696d\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3084\u9001\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u7ba1\u7406\u30fb\u904b\u7528\u3059\u308b\u6280\u8853\u8005\u306e\u307f\u306a\u3055\u307e\u304c\u62c5\u3046\u3079\u304d\u91cd\u8981\u306a\u5f79\u5272\u306a\u306e\u3067\u3059\u3002 <\/p>\n<p> \u3000\u672c\u7a3f\u3092\u57f7\u7b46\u3059\u308bGMO\u30d6\u30e9\u30f3\u30c9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001GMO\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b0\u30eb\u30fc\u30d7\u306e\u3046\u3061\u7d0450\u793e\u3092\u5bfe\u8c61\u306b\u3001\u3053\u306e\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u5c0e\u5165\u652f\u63f4\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u5b8c\u9042\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u904e\u7a0b\u3067\u3001\u5404\u793e\u306eDMARC\u30dd\u30ea\u30b7\u30fc\u3092\u6700\u3082\u5b89\u5168\u306a\u30ec\u30d9\u30eb\u3078\u3068\u6bb5\u968e\u7684\u306b\u5f15\u304d\u4e0a\u3052\u308b\u5b9f\u52d9\u3092\u6570\u591a\u304f\u7d4c\u9a13\u3057\u3001\u5b89\u5168\u304b\u3064\u78ba\u5b9f\u306a\u5c0e\u5165\u3092\u53ef\u80fd\u306b\u3059\u308b\u30ce\u30a6\u30cf\u30a6\u3092\u84c4\u7a4d\u3057\u307e\u3057\u305f\u3002 <\/p>\n<p> \u3000\u3053\u306e\u5b9f\u8df5\u77e5\u306b\u57fa\u3065\u304d\u3001\u672c\u9023\u8f09\u3067\u306f\u51683\u56de\u306b\u308f\u305f\u308a\u4ee5\u4e0b\u306e\u69cb\u6210\u3067\u3001\u73fe\u5834\u3067\u672c\u5f53\u306b\u5f79\u7acb\u3064DMARC\u5c0e\u5165\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002 <\/p>\n<div class=\"image-wrap movie\">\n<div class=\"inner\">\n<div class=\"row\">\n<div class=\"column\" style=\"width: 480px;\">\n<div class=\"img-wrap-h\" style=\"width:480px;height:270px;\">\n<p><iframe loading=\"lazy\" title=\"\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u3068\u306f\uff1f\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/sH3NKt7tz1E?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<\/div>\n<p><span class=\"caption\">\u5f53\u793e\u304c\u516c\u958b\u3057\u3066\u3044\u308bBIMI\u306b\u3064\u3044\u3066\u306e\u89e3\u8aac\u52d5\u753b<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"box-01 fnt-85\">\n<ul class=\"list-01\">\n<li>\u7b2c1\u56de\uff08\u672c\u7a3f\uff09\uff1a\u300c\u9867\u5ba2\u3068\u81ea\u793e\u30d6\u30e9\u30f3\u30c9\u3092\u201c\u306a\u308a\u3059\u307e\u3057\u201d\u304b\u3089\u5b88\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u6bb5\u968e\u7684\u5f15\u304d\u4e0a\u3052\u300d<br \/>\uff5e\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u5bfe\u7b56\u306e\u5207\u308a\u672d\u3068\u306a\u308b\u30d6\u30e9\u30f3\u30c9\u306e\u9632\u5fa1\u58c1\uff5e<\/li>\n<li>\u7b2c2\u56de\uff1a\u300c3\u30b9\u30c6\u30c3\u30d7\u3067\u884c\u3046\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u5f15\u304d\u4e0a\u3052\u306e\u5b9f\u8df5\u300d<br \/>\uff5e\u5931\u6557\u3057\u306a\u3044none\u2192quarantine\u2192reject\u306e\u79fb\u884c\uff5e<\/li>\n<li>\u7b2c3\u56de\uff1a\u300c\u81ea\u793e\u30d6\u30e9\u30f3\u30c9\u3092\u306a\u308a\u3059\u307e\u3057\u304b\u3089\u5b88\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u201dreject\u201d\u306e\u904b\u7528\u300d<br \/>\uff5eDMARC\u30ec\u30dd\u30fc\u30c8\u306e\u8aad\u307f\u65b9\u3068\u6d3b\u7528\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff5e<\/li>\n<\/ul>\n<\/div>\n<p> \u3000\u672c\u9023\u8f09\u306fDMARC\u30dd\u30ea\u30b7\u30fc\u5f15\u304d\u4e0a\u3052\u5c02\u7528\u30c4\u30fc\u30eb\u306e\u5c0e\u5165\u3092\u524d\u63d0\u3068\u3057\u306a\u3044\u3001\u73fe\u5834\u7d4c\u9a13\u3068\u5b9f\u7e3e\u306b\u88cf\u6253\u3061\u3055\u308c\u305f\u5b9f\u8df5\u30ac\u30a4\u30c9\u3067\u3059\u3002\u793e\u5185\u30c9\u30e1\u30a4\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u6280\u8853\u8005\u306e\u65b9\u306f\u3082\u3061\u308d\u3093\u3001\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u306b\u3088\u308b\u30d6\u30e9\u30f3\u30c9\u4fa1\u5024\u5411\u4e0a\u3092\u76ee\u6307\u3059\u5e83\u5831\u30fb\u7d4c\u55b6\u4f01\u753b\u30fb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u62c5\u5f53\u8005\u306e\u65b9\u306b\u3082\u3001\u305c\u3072\u3054\u4e00\u8aad\u3044\u305f\u3060\u3051\u308c\u3070\u5e78\u3044\u3067\u3059\u3002 <\/p>\n<\/div>\n<div id=\"contents-section-4\">\n<h2 class=\"hdg-03\"><span>DMARC\u3068\u306f\u4f55\u304b\uff08SPF\u30fbDKIM\u30fbDMARC\u306e\u57fa\u672c\uff09<\/span><\/h2>\n<p> \u3000\u73fe\u5728\u306e\u30e1\u30fc\u30eb\u306f\u3001\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306e\u8a50\u79f0\u304c\u6280\u8853\u7684\u306b\u53ef\u80fd\u3067\u3042\u308a\u3001\u3053\u306e\u60aa\u7528\u306b\u3088\u3063\u3066\u300c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u300d\u3084\u300c\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u300d\u304c\u4f01\u696d\u306e\u4fe1\u983c\u3092\u640d\u306a\u3046\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3059\u308b\u305f\u3081\u306b\u5c0e\u5165\u3055\u308c\u305f\u306e\u304c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3068\u547c\u3070\u308c\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u4ee3\u8868\u7684\u306a\u6280\u8853\u306b\u306f\u4ee5\u4e0b\u306e3\u3064\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<p> \u3000\u307e\u305a\u3001\u300cSPF\u300d\uff08Sender Policy Framework\uff09\u3067\u3059\u304c\u3001\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304c\u6b63\u5f53\u306a\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u304b\u691c\u8a3c\u3059\u308b\u4ed5\u7d44\u307f\u3002\u30c9\u30e1\u30a4\u30f3\u306eDNS\u306b\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u8a31\u53ef\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\uff08IP\u30a2\u30c9\u30ec\u30b9\uff09\u306e\u30ea\u30b9\u30c8\u3092TXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u516c\u958b\u3057\u3001\u53d7\u4fe1\u5074\u306f\u30e1\u30fc\u30eb\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304c\u305d\u306e\u30ea\u30b9\u30c8\u306b\u542b\u307e\u308c\u308b\u304b\u7167\u5408\u3057\u307e\u3059\u3002 <\/p>\n<p> \u3000\u7d9a\u3044\u3066\u3001\u300cDKIM\u300d\uff08DomainKeys Identified Mail\uff09\u3067\u3059\u304c\u3001\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3001\u53d7\u4fe1\u5074\u3067\u6539\u3056\u3093\u3084\u306a\u308a\u3059\u307e\u3057\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3002\u9001\u4fe1\u8005\u306f\u79d8\u5bc6\u9375\u3067\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u3051\u3001\u53d7\u4fe1\u5074\u306fDNS\u306b\u516c\u958b\u3055\u308c\u305f\u516c\u958b\u9375\u3067\u7f72\u540d\u306e\u6b63\u5f53\u6027\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002 <\/p>\n<p> \u3000\u6700\u5f8c\u306e\u300cDMARC\u300d\uff08Domain-based Message Authentication, Reporting and Conformance\uff09 \u300d\u306f\u3001SPF\u3084DKIM\u306e\u8a8d\u8a3c\u7d50\u679c\u306b\u57fa\u3065\u304d\u3001\u53d7\u4fe1\u30e1\u30fc\u30eb\u3092\u3069\u306e\u3088\u3046\u306b\u6271\u3046\u304b\u53d7\u4fe1\u5074\u306b\u6307\u793a\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u305d\u3057\u3066\u3001DMARC\u306b\u3088\u308b\u6307\u793a\u306e\u65b9\u91dd\u306b\u3042\u305f\u308b\u3001\u672c\u9023\u8f09\u306e\u30c6\u30fc\u30de\u3067\u3042\u308b\u300cDMARC\u30dd\u30ea\u30b7\u30fc\u300d\u3067\u3059\u3002\u300cSPF\/DKIM\u306e\u30c1\u30a7\u30c3\u30af\u7d50\u679c\u306b\u5fdc\u3058\u3066\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u5165\u308c\u308b\u304b\u9694\u96e2\u307e\u305f\u306f\u3001\u62d2\u5426\u3059\u308b\u300d\u30dd\u30ea\u30b7\u30fc\u3092\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u304c\u6c7a\u3081\u3001\u53d7\u4fe1\u5074\u306b\u4f1d\u3048\u307e\u3059\u3002\u52a0\u3048\u3066\u3001DMARC\u3067\u306f\u8a8d\u8a3c\u7d50\u679c\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u8005\u3078\u9001\u4fe1\u3059\u308b\u6a5f\u80fd\u3082\u3042\u308a\u307e\u3059\u3002 <\/p>\n<p> \u3000DMARC\u30dd\u30ea\u30b7\u30fc\u306f\u300cDMARC\u30ec\u30b3\u30fc\u30c9\u300d\u3068\u547c\u3070\u308c\u308b\u30c6\u30ad\u30b9\u30c8\u30c7\u30fc\u30bf\u3068\u3057\u3066DNS\u30b5\u30fc\u30d0\u30fc\u306b\u767b\u9332\u3055\u308c\u3001\u5168\u4e16\u754c\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u5411\u3051\u5ba3\u8a00\u3055\u308c\u307e\u3059\u3002\u30dd\u30ea\u30b7\u30fc\u306b\u306f\u6b21\u306e3\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<ul class=\"list-01\">\n<li><strong class=\"em\">none<\/strong>\uff08\u76e3\u8996\u306e\u307f\uff09<\/li>\n<li><strong class=\"em\">quarantine<\/strong>\uff08\u9694\u96e2\uff09<\/li>\n<li><strong class=\"em\">reject<\/strong>\uff08\u62d2\u5426\uff09<\/li>\n<\/ul>\n<p> \u3000\u4f8b\u3048\u3070\u300cv=DMARC1; p=none; rua=mailto:dmarc-reports@example.co.jp\u300d\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u8ffd\u8a18\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u53d7\u4fe1\u5074\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30dd\u30ea\u30b7\u30fc\u3092\u53c2\u7167\u3057\u3001SPF\u3084DKIM\u304c\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u76e3\u8996\u306e\u307f\u3067\u305d\u306e\u307e\u307e\u914d\u4fe1\u3059\u308b\u304b\uff08none\uff09\u3001\u8ff7\u60d1\u30e1\u30fc\u30ebBOX\u306b\u9694\u96e2\u3059\u308b\u304b\uff08quarantine\uff09\u3001\u5b8c\u5168\u306b\u53d7\u4fe1\u3092\u62d2\u5426\u3059\u308b\u304b\uff08reject\uff09\u3092\u5224\u65ad\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p> \u3000DMARC\u30ec\u30b3\u30fc\u30c9\u306b\u306f\u307b\u304b\u306b\u3082\u3001\u30ec\u30dd\u30fc\u30c8\u9001\u4fe1\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff08RUA\u30bf\u30b0\uff09\u306a\u3069\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p> \u3000DMARC\u30ec\u30b3\u30fc\u30c9\u306b\u306f\u3001\u30ec\u30dd\u30fc\u30c8\u9001\u4fe1\u5148\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff08RUA\u30bf\u30b0\uff09\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002RUA\u30bf\u30b0\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u8907\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306eDMARC\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\u3092\u4e00\u5143\u7684\u306b\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u969b\u3001\u8907\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u540c\u3058\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002 <\/p>\n<p> \u3000\u307e\u305f\u3001\u8907\u6570\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3092\u500b\u5225\u306b\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308b\u305f\u3081\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u53d7\u4fe1\u30fb\u78ba\u8a8d\u4f5c\u696d\u3092\u4e00\u5143\u5316\u3067\u304d\u3001\u904b\u7528\u7ba1\u7406\u306e\u52b9\u7387\u5316\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002 <\/p>\n<p> \u3000\u306a\u304a\u3001\u5c06\u6765\u7684\u306b\u30c9\u30e1\u30a4\u30f3\u6570\u306e\u5897\u52a0\u3084\u904b\u7528\u90e8\u9580\u306e\u5206\u5316\u306a\u3069\u306b\u3088\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306b\u30ec\u30dd\u30fc\u30c8\u53d7\u4fe1\u5148\u3092\u5206\u3051\u308b\u5fc5\u8981\u304c\u751f\u3058\u305f\u5834\u5408\u306b\u306f\u3001\u500b\u5225\u30a2\u30c9\u30ec\u30b9\u306e\u4f75\u7528\u3084\u5206\u5272\u3082\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002 <\/p>\n<p> \u3000DMARC\u306f\u3001SPF\/DKIM\u304cPASS\uff08\u5408\u683c\uff09\u3067\u3082\u3001From\u30c9\u30e1\u30a4\u30f3\u3068\u306e\u300c\u6574\u5408\uff08\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff09\u300d\u304c\u53d6\u308c\u3066\u3044\u306a\u3044\u3068FAIL\uff08\u4e0d\u5408\u683c\uff09\u306b\u306a\u308a\u307e\u3059\u3002\u5b9f\u904b\u7528\u3067\u306f\u3001\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u7f72\u540d\u30c9\u30e1\u30a4\u30f3\u3084SPF\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u3092From\u306b\u63c3\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002 <\/p>\n<\/div>\n<div id=\"contents-section-5\">\n<h2 class=\"hdg-03\"><span>\u306a\u305cDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f15\u304d\u4e0a\u3052\u304c\u5fc5\u8981\u304b<\/span><\/h2>\n<p> \u3000DMARC\u30dd\u30ea\u30b7\u30fc\u3092none\uff08\u76e3\u8996\u306e\u307f\uff09\u304b\u3089quarantine\uff08\u9694\u96e2\uff09\u3084reject\uff08\u62d2\u5426\uff09\u3068\u3044\u3063\u305f\u5f37\u5316\u30ec\u30d9\u30eb\u306b\u5f15\u304d\u4e0a\u3052\u308b\u4e3b\u306a\u7406\u7531\u306f\u3001\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u9632\u6b62\u3068\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u5bfe\u5fdc\u306e\u305f\u3081\u3067\u3059\u3002 <\/p>\n<p> \u3000\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u9632\u6b62\u7b56\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f15\u304d\u4e0a\u3052\u3092\u5b9f\u884c\uff08quarantine\/reject\u3078\u5f15\u304d\u4e0a\u3052\uff09\u3059\u308c\u3070\u3001SPF\u3084DKIM\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u4e0d\u6b63\u306a\u30e1\u30fc\u30eb\u306f\u53d7\u4fe1\u8005\u306e\u53d7\u4fe1\u7bb1\u306b\u5c4a\u304d\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002p=none\u306e\u307e\u307e\u3067\u306f\u8a8d\u8a3c\u7d50\u679c\u3092\u30ec\u30dd\u30fc\u30c8\u3059\u308b\u3060\u3051\u3067\u3001\u53d7\u4fe1\u5074\u3067\u62d2\u5426\u3055\u308c\u306a\u3044\u305f\u3081\u3001\u653b\u6483\u8005\u306f\u4f9d\u7136\u3068\u3057\u3066\u3042\u306a\u305f\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u306a\u308a\u3059\u307e\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u308a\u653e\u984c\u3067\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u9867\u5ba2\u3084\u53d6\u5f15\u5148\u304c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u3063\u3066\u3057\u307e\u3046\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002DMARC\u3092\u9069\u5207\u306b\u5f37\u5316\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u81ea\u5206\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u9a19\u3063\u305f\u300c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u300d\u304c\u5c4a\u304b\u306a\u3044\u3088\u3046\u306b\u3067\u304d\u3001\u9867\u5ba2\u3068\u30d6\u30e9\u30f3\u30c9\u3092\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p> \u3000\u305d\u3057\u3066\u3001\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u3078\u306e\u5bfe\u5fdc\u306b\u3064\u3044\u3066\u306f\u3001\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306b\u4f01\u696d\u306e\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u3092\u8868\u793a\u3059\u308b\u65b0\u3057\u3044\u4ed5\u7d44\u307f\u3067\u3001\u53d7\u4fe1\u8005\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u8a8d\u8a3c\u6e08\u307f\u306e\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u304c\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u3067\u3001\u53d7\u4fe1\u8005\u306f\u3071\u3063\u3068\u898b\u3066\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u8005\u3067\u3042\u308b\u3053\u3068\u3092\u5224\u5225\u3067\u304d\u307e\u3059\u3002\u30e1\u30fc\u30eb\u306e\u958b\u5c01\u7387\u5411\u4e0a\u3084\u3001\u9867\u5ba2\u4fdd\u8b77\u306b\u52aa\u3081\u308b\u4f01\u696d\u3060\u3068\u8a8d\u8b58\u3055\u308c\u3001\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u52b9\u679c\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p> \u3000\u3053\u306e\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306fDMARC\u306e\u30dd\u30ea\u30b7\u30fc\u3092quarantine\u307e\u305f\u306freject\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u524d\u63d0\u3068\u306a\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u8a8d\u8a3c\u5c40\u304b\u3089\u4f01\u696d\u306e\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u8a3c\u660e\u66f8\uff08VMC\u3001Verified Mark Certificate\uff09\u3092\u53d6\u5f97\u3059\u308b\u969b\u306b\u3001DMARC\u5c0e\u5165\u3068\u30dd\u30ea\u30b7\u30fc\u5f37\u5316\u304c\u5fc5\u9808\u3068\u306a\u308a\u307e\u3059\u3002DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u5f15\u304d\u4e0a\u3052\u3066\u3044\u306a\u3044\u4f01\u696d\u306f\u3001\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\uff0f\u4f01\u696d\u30ed\u30b4\u6240\u6709\u8a3c\u660e\u66f8\uff08VMC\uff09\u306b\u3088\u308b\u30ed\u30b4\u8868\u793a\u304c\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30d6\u30e9\u30f3\u30c9\u8a34\u6c42\u3084\u4fe1\u983c\u6027\u306e\u89b3\u70b9\u304b\u3089\u3082\u5bfe\u5fdc\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002 <\/p>\n<\/div>\n<div id=\"contents-section-6\">\n<h2 class=\"hdg-03\"><span>\u6bb5\u968e\u7684\u306b\u9032\u3081\u308c\u3070\u5b89\u5168\u306b\u5c0e\u5165\u3067\u304d\u308b\u2500\u2500\u534a\u5e74\u3092\u76ee\u5b89\u306b\u3057\u305fDMARC\u30dd\u30ea\u30b7\u30fc\u5f37\u5316<\/span><\/h2>\n<p> \u3000\u591a\u304f\u306e\u65e5\u672c\u4f01\u696d\u304cDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u5f15\u304d\u4e0a\u3052\u306b\u614e\u91cd\u306b\u306a\u308b\u6700\u5927\u306e\u7406\u7531\u306f\u3001\u300c\u4e07\u304c\u4e00\u3001\u53d6\u5f15\u5148\u3084\u9867\u5ba2\u306b\u9001\u308b\u3079\u304d\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u304c\u62d2\u5426\u3055\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u300d\u3068\u3044\u3046\u61f8\u5ff5\u3067\u3057\u3087\u3046\u3002 <\/p>\n<p> \u3000\u3057\u304b\u3057\u3001\u79c1\u305f\u3061GMO\u30d6\u30e9\u30f3\u30c9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304cGMO\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b0\u30eb\u30fc\u30d7\u7d0450\u793e\u3078\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u3092\u5c0e\u5165\u3057\u305f\u7d4c\u9a13\u304b\u3089\u3001\u671f\u9593\u3092\u534a\u5e74\u7a0b\u5ea6\u898b\u636e\u3048\u305f\u300c\u6bb5\u968e\u7684\u306a\u30dd\u30ea\u30b7\u30fc\u5f15\u304d\u4e0a\u3052\u300d\u304cDMARC\u30dd\u30ea\u30b7\u30fc\u5f15\u304d\u4e0a\u3052\u306b\u4f34\u3046\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u4e0a\u3067\u6975\u3081\u3066\u6709\u52b9\u3067\u3042\u308b\u3053\u3068\u3092\u304a\u4f1d\u3048\u3057\u305f\u3044\u3068\u3001\u672c\u7a3f\u3092\u3054\u7528\u610f\u3057\u307e\u3057\u305f\u3002 <\/p>\n<p> \u3000DMARC\u306e\u8a2d\u5b9a\u81ea\u4f53\u306f\u6570\u6642\u9593\u3067\u7d42\u308f\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u5c0e\u5165\u306f\u6570\u65e5\u3067\u5b8c\u4e86\u3059\u308b\u5358\u7d14\u4f5c\u696d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u74b0\u5883\u3092\u53ef\u8996\u5316\u3057\u3001\u6539\u5584\u3057\u3066\u3044\u304f\u4e00\u3064\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u6349\u3048\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u6700\u5927\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u6b63\u898f\u30e1\u30fc\u30eb\u304c\u62d2\u5426\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u8fd1\u3065\u3051\u3089\u308c\u308b\u70b9\u306b\u3042\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002 <\/p>\n<div class=\"contents-section contents-section-layer-2\" id=\"contents-section-6-1\">\n<h3 class=\"hdg-17\"><span>1. \u76e3\u8996\u30d5\u30a7\u30fc\u30ba\uff08p=none\uff09<\/span><\/h3>\n<p> \u3000\u307e\u305a\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u300cnone\uff08\u76e3\u8996\u306e\u307f\uff09\u300d\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u6bb5\u968e\u3067\u306f\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u304c\u62d2\u5426\u3055\u308c\u308b\u3053\u3068\u306f\u306a\u304f\u3001\u30d3\u30b8\u30cd\u30b9\u3078\u306e\u5f71\u97ff\u306f\u4e00\u5207\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u4ee3\u308f\u308a\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306b\u306a\u308a\u3059\u307e\u3057\u305f\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u7d50\u679c\u304c\u300cDMARC\u30ec\u30dd\u30fc\u30c8\u300d\u3068\u3057\u3066\u5c4a\u304f\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<\/div>\n<div class=\"contents-section contents-section-layer-2\" id=\"contents-section-6-2\">\n<h3 class=\"hdg-17\"><span>2. \u5206\u6790\u30fb\u6539\u5584\u30d5\u30a7\u30fc\u30ba<\/span><\/h3>\n<p> \u3000\u3053\u306eDMARC\u30ec\u30dd\u30fc\u30c8\u3092\u6570\u9031\u9593\u304b\u3089\u6570\u30ab\u6708\u304b\u3051\u3066\u3058\u3063\u304f\u308a\u3068\u5206\u6790\u3057\u3001\u300c\u81ea\u793e\u304c\u5229\u7528\u3057\u3066\u3044\u308b\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\uff08\u4f8b\u3048\u3070\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3084\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u306e\u901a\u77e5\u306a\u3069\uff09\u300d\u3067\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u3082\u306e\u3092\u5168\u3066\u6d17\u3044\u51fa\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u305d\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u4e00\u3064\u3072\u3068\u3064\u4fee\u6b63\u3057\u3066\u3044\u304f\u306e\u3067\u3059\u3002 <\/p>\n<\/div>\n<div class=\"contents-section contents-section-layer-2\" id=\"contents-section-6-3\">\n<h3 class=\"hdg-17\"><span>3. \u6bb5\u968e\u7684\u306a\u5f15\u304d\u4e0a\u3052\u30d5\u30a7\u30fc\u30ba<\/span><\/h3>\n<p> \u3000\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u304c\u5168\u3066\u6b63\u3057\u304f\u8a8d\u8a3c\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u3066\u521d\u3081\u3066\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u300cquarantine\uff08\u9694\u96e2\uff09\u300d\u3001\u305d\u3057\u3066\u6700\u7d42\u76ee\u6a19\u3067\u3042\u308b\u300creject\uff08\u62d2\u5426\uff09\u300d\u3078\u3001\u81ea\u4fe1\u3092\u6301\u3063\u3066\u5f15\u304d\u4e0a\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <\/p>\n<p> \u3000\u3053\u306e\u3088\u3046\u306b\u3001\u7126\u3089\u305a\u6bb5\u968e\u3092\u8e0f\u3080\u3053\u3068\u3067\u3001DMARC\u306f\u30d6\u30e9\u30f3\u30c9\u3092\u5b88\u308b\u5f37\u529b\u306a\u76fe\u3068\u306a\u308a\u5f97\u307e\u3059\u3002\u6b21\u56de\u304b\u3089\u306f\u3001\u3053\u306e\u300c\u6bb5\u968e\u7684\u306a\u5f15\u304d\u4e0a\u3052\u300d\u3092\u6210\u529f\u3055\u305b\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u624b\u9806\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002 <\/p>\n<\/div>\n<\/div>\n<div id=\"contents-section-7\">\n<h2 class=\"hdg-03\"><span>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u7a2e\u985e\u3068\u52d5\u4f5c<\/span><\/h2>\n<p> \u3000\u4ee5\u4e0b\u306e\u8868\u306bDMARC\u30dd\u30ea\u30b7\u30fc\u8a2d\u5b9a\u5024\u3054\u3068\u306e\u52d5\u4f5c\u6982\u8981\u3092\u793a\u3057\u307e\u3059\u3002\u30dd\u30ea\u30b7\u30fc\u3092\u5f15\u304d\u4e0a\u3052\u308b\u3053\u3068\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3078\u306e\u5bfe\u7b56\u5f37\u5ea6\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002 <\/p>\n<div class=\"table-wrap\">\n<div class=\"s_table\"><table class=\"table-data row-1-bg g row-1-bold fnt-85 wp95 cap-std hcenter undefined row1td\">\n<tbody>\n<tr class=\"y1 odd\">\n<td class=\"y1 y1x1 x1\">\u30dd\u30ea\u30b7\u30fc<\/td>\n<td class=\"y1 y1x2 x2\">\u53d7\u4fe1\u5074\u3067\u306e\u6271\u3044<\/td>\n<td class=\"y1 y1x3 x3 td_end\">\u4e3b\u306a\u7528\u9014\u30fb\u76ee\u7684<\/td>\n<\/tr>\n<tr class=\"y2 even\">\n<td class=\"y2 y2x1 x1\">none <br \/>\uff08\u76e3\u8996\u306e\u307f\uff09<\/td>\n<td class=\"y2 y2x2 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td_end\">\u8a66\u9a13\u7684\u904b\u7528\u3002\u6b63\u898f\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u304c\u5931\u6557\u3057\u3066\u3082\u8ff7\u60d1\u30e1\u30fc\u30ebBOX\u306b\u5165\u308b\u305f\u3081\u3001\u8aa4\u5224\u5b9a\u306b\u3088\u308b\u696d\u52d9\u5f71\u97ff\u3092\u6700\u5c0f\u5316\u3067\u304d\u308b\u3002\u30dd\u30ea\u30b7\u30fc\u5f15\u304d\u4e0a\u3052\u306e\u4e2d\u9593\u6bb5\u968e\u3068\u3057\u3066\u63a8\u5968\u3002\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u5b9f\u88c5\u53ef\u80fd\u3002<\/td>\n<\/tr>\n<tr class=\"y4 tr_end even\">\n<td class=\"y4 y4x1 x1\">reject <br \/>\uff08\u62d2\u5426\uff09<\/td>\n<td class=\"y4 y4x2 x2\">\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u62d2\u5426\u3059\u308b\uff08\u914d\u9001\u3057\u306a\u3044\uff09<\/td>\n<td class=\"y4 y4x3 x3 td_end\">\u672c\u756a\u904b\u7528\u3002\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u6839\u672c\u304b\u3089\u906e\u65ad\u3002\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u5b8c\u5168\u306b\u53d7\u4fe1\u62d2\u5426\u3059\u308b\u3002\u4f01\u696d\u30ed\u30b4\u4ed8\u304d\u30e1\u30fc\u30eb\uff08BIMI\uff09\u5b9f\u88c5\u53ef\u80fd\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n<p> \u3000\u30dd\u30ea\u30b7\u30fc\u3092\u6bb5\u968e\u7684\u306b\u5f15\u304d\u4e0a\u3052\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u306e\u5230\u9054\u6027\u3078\u306e\u60aa\u5f71\u97ff\u3092\u6291\u3048\u3064\u3064\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7b2c2\u56de\u3067\u306f\u3001\u5b9f\u969b\u306bDMARC\u3092\u5b89\u5168\u306b\u5c0e\u5165\u3057\u30dd\u30ea\u30b7\u30fc\u3092\u5f15\u304d\u4e0a\u3052\u308b\u624b\u9806\u3092\u8aac\u660e\u3057\u307e\u3059\u3002 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content=\"\u7b2c1\u56de\uff1a\u9867\u5ba2\u3068\u81ea\u793e\u30d6\u30e9\u30f3\u30c9\u3092\u201c\u306a\u308a\u3059\u307e\u3057\u201d\u304b\u3089\u5b88\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u6bb5\u968e\u7684\u5f15\u304d\u4e0a\u3052\u3010DMARC\u30dd\u30ea\u30b7\u30fc\u5f15\u304d\u4e0a\u3052\u30ac\u30a4\u30c9\u3011 - INTERNET Watch - \u30dd\u30b1\u30b3\u30f3\" \/>\n<meta property=\"og:description\" content=\"\u3044\u307e\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u304c\u6025\u52d9\u306a\u7406\u7531 \u3000\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306e\u5831\u544a\u4ef6\u6570\u30fb\u88ab\u5bb3\u984d\u306f\u5e74\u3005\u5897\u52a0\u62e1\u5927\u3057\u3066\u3044\u307e\u3059\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u5bfe\u7b56\u5354\u8b70\u4f1a\u306b\u3088\u308c\u3070\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306e\u5831\u544a\u4ef6\u6570\u306f2018\u5e74\u306e\u7d042\u4e07\u4ef6\u304b\u30892024\u5e74\u306b\u306f\u7d04170\u4e07\u4ef6\u30012025\u5e74 [&hellip;]\" 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