{"id":8609,"date":"2023-03-13T07:00:41","date_gmt":"2023-03-12T22:00:41","guid":{"rendered":"https:\/\/frauddetection.cacco.co.jp\/media\/?p=8609"},"modified":"2026-03-31T20:49:36","modified_gmt":"2026-03-31T11:49:36","slug":"dmarc%e3%81%a8%e3%81%af%ef%bc%9f%e4%bb%95%e7%b5%84%e3%81%bf%e3%82%84%e3%83%a1%e3%83%aa%e3%83%83%e3%83%88%e3%83%bb%e3%83%87%e3%83%a1%e3%83%aa%e3%83%83%e3%83%88%e3%80%81%e8%a8%ad%e5%ae%9a%e6%96%b9","status":"publish","type":"post","link":"https:\/\/frauddetection.cacco.co.jp\/media\/knowhow\/8609\/","title":{"rendered":"DMARC\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u3084\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3001\u8a2d\u5b9a\u65b9\u6cd5\u3092\u89e3\u8aac"},"content":{"rendered":"<div class=\"tcdce-body\"><p>DMARC\u3068\u306f\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u3084\u30e1\u30fc\u30eb\u6539\u3056\u3093\u306a\u3069\u306e\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u300d\u306b\u6709\u52b9\u306a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u306f\u300cSPF\u300d\u3084\u300cDKIM\u300d\u306a\u3069\u3082\u3042\u308a\u307e\u3059\u304c\u3001DMARC\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3088\u308a\u5f37\u529b\u306a\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001<\/p>\n<ul>\n<li>DMARC\u306e\u6982\u8981\u3084\u4ed5\u7d44\u307f<\/li>\n<li>DMARC\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8<\/li>\n<li>DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/li>\n<li>DMARC\u306e\u52d5\u4f5c\u78ba\u8a8d\u65b9\u6cd5<\/li>\n<\/ul>\n<p>\u306a\u3069\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u3084\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3092\u5f37\u5316\u3057\u305f\u3044\u65b9\u306f\u3001\u305c\u3072\u6700\u5f8c\u307e\u3067\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u4e0b\u8a18\u8a18\u4e8b\u3067\u306f\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\uff08\u9001\u4fe1\u8005\u3092\u88c5\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u8a50\u6b3a\u624b\u53e3\uff09\u306e\u4e8b\u4f8b\u3084\u898b\u5206\u3051\u65b9\u3001\u5bfe\u51e6\u6cd5\u306a\u3069\u3092\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u95a2\u5fc3\u306e\u3042\u308b\u65b9\u306f\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"cardlink\"><a href=\"https:\/\/frauddetection.cacco.co.jp\/media\/securityterms\/5640\/\" target=\"_blank\"><div class=\"cardlink_thumbnail\"><img src='https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2022\/08\/fishing0816-120x120.jpeg' alt='\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u5b9f\u4f8b\u3084\u898b\u5206\u3051\u65b9\u3001\u5bfe\u51e6\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac' width=120 height=120 \/><\/a><\/div><div class=\"cardlink_content\"><span class=\"timestamp\">2022.08.24<\/span><div class=\"cardlink_title\"><a href=\"https:\/\/frauddetection.cacco.co.jp\/media\/securityterms\/5640\/\" target=\"_blank\">\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u5b9f\u4f8b\u3084\u898b\u5206\u3051\u65b9\u3001\u5bfe\u51e6\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac <\/a><\/div><div class=\"cardlink_excerpt\">\u300c\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u3068\u306f\u4f55\u3060\u308d\u3046\u300d\r\n\u300c\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u5bfe\u7b56\u304c\u77e5\u308a\u305f\u3044\u300d\r\n\r\n\u3053\u306e\u3088\u3046\u306b\u60a9\u3093\u3067\u3044\u308b\u65b9\u306b\u5411\u3051\u3066\u3001\u672c\u8a18\u4e8b\u3067\u306f\u4ee5\u4e0b\u306e\u5185\u5bb9\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\r\n\r\n \t\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u306e\u6982\u8981\r\n \t\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u306e\u4e8b\u4f8b\r\n \t\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u306e\u898b\u5206\u3051\u65b9...<\/div><\/div><div class=\"cardlink_footer\"><\/div><\/div>\n<p style=\"text-align: center;\"><strong>\uff3c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u5fc5\u8981\u306aDMARC\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff0f<a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/download2\/dmarc_point\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-16012\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png\" alt=\"\" width=\"700\" height=\"210\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png 700w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc-300x90.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/strong><\/p>\n<p><span data-sheets-root=\"1\">\u8a18\u4e8b\u76e3\u4fee<\/span><\/p>\n<h2>DMARC\u3068\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u6709\u52b9\u306a\u300c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306e\u8a8d\u8a3c\u6280\u8853\u300d<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8691 size-full\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-7.jpeg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-7.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-7-300x200.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-7-1024x683.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-7-768x512.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>DMARC\uff08Domain-based Message Authentication-Reporting and Conformance\uff09\u306f\u300c\u30c7\u30a3\u30fc\u30de\u30fc\u30af\u300d\u3068\u8aad\u307f\u3001<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u6709\u52b9\u306a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c<\/strong>\u306e\u3072\u3068\u3064\u3067\u3059\u3002<\/p>\n<p>DMARC\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u76ee\u7684\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li>\u9001\u4fe1\u8005\u304c\u9001\u3063\u305f\u30e1\u30fc\u30eb\u3092\u6b63\u898f\u306e\u3082\u306e\u3068\u5ba3\u8a00\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b<\/li>\n<li>\u30e1\u30fc\u30eb\u306e\u6539\u3056\u3093\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u691c\u77e5\u3059\u308b<\/li>\n<li>\u9001\u4fe1\u7d50\u679c\u306b\u3088\u308a\u3001\u9001\u4fe1\u8005\u306f\u3069\u308c\u3060\u3051\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u306e\u304b\u628a\u63e1\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>DMARC\u306f\u3001\u9001\u4fe1\u8005\u304b\u3089\u53d7\u4fe1\u8005\u306b\u30e1\u30fc\u30eb\u304c\u6b63\u898f\u306e\u3082\u306e\u3068\u5ba3\u8a00\u3059\u308b\u7d50\u679c\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56<\/strong>\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3068\u306f\u3001\u5b9f\u5728\u3059\u308b\u4f01\u696d\u3084\u56e3\u4f53\u3092\u88c5\u3063\u3066\u60aa\u7528\u8005\u304c\u9001\u4fe1\u3059\u308b\u30e1\u30fc\u30eb\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u4e0b\u8a18\u8a18\u4e8b\u3067\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u4ed5\u7d44\u307f\u3084\u624b\u53e3\u306a\u3069\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u95a2\u5fc3\u306e\u3042\u308b\u65b9\u306f\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"cardlink\"><a href=\"https:\/\/frauddetection.cacco.co.jp\/media\/fraud-access\/4735\/\" target=\"_blank\"><div class=\"cardlink_thumbnail\"><img src='https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2022\/05\/AdobeStock_494389706-120x120.jpeg' alt='\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u3084\u898b\u5206\u3051\u65b9\u30017\u3064\u306e\u5bfe\u7b56\u307e\u3067\u5fb9\u5e95\u89e3\u8aac' width=120 height=120 \/><\/a><\/div><div class=\"cardlink_content\"><span class=\"timestamp\">2022.05.31<\/span><div class=\"cardlink_title\"><a href=\"https:\/\/frauddetection.cacco.co.jp\/media\/fraud-access\/4735\/\" target=\"_blank\">\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u3084\u898b\u5206\u3051\u65b9\u30017\u3064\u306e\u5bfe\u7b56\u307e\u3067\u5fb9\u5e95\u89e3\u8aac <\/a><\/div><div class=\"cardlink_excerpt\">\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3068\u306f\u3001\u60aa\u610f\u3042\u308b\u7b2c\u4e09\u8005\u304c\u4f01\u696d\u3084\u56e3\u4f53\u3092\u9a19\u308a\u9001\u4fe1\u3059\u308b\u30e1\u30fc\u30eb\u306e\u3053\u3068\u3067\u3001\u91d1\u92ad\u3084\u500b\u4eba\u60c5\u5831\u306e\u4e0d\u6b63\u5165\u624b\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\r\n\r\n\u3057\u304b\u3057\u3001\u6cd5\u4eba\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3057\u305f\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300d\u3082\u3042\u308a\u3001\u500b\u4eba\u3060\u3051\u3067\u306a\u304f\u4f01\u696d\u3082\u60c5\u5831\u6f0f\u6d29\u306e\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\r\n\r...<\/div><\/div><div class=\"cardlink_footer\"><\/div><\/div>\n<h2>DMARC\u306e\u4ed5\u7d44\u307f<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-8690\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-6.jpeg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-6.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-6-300x200.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-6-1024x683.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-6-768x512.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>DMARC\u306f\u3001<strong>SPF\u3084DKIM\u3092\u5229\u7528\u3057\u3066\u300c\u691c\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\u65b9\u6cd5\u300d\u3092\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u8005\u304c\u5ba3\u8a00\u3059\u308b\u4ed5\u7d44\u307f<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u5f8c\u8ff0\u3059\u308b\u300cSPF\u300d\u3084\u300cDKIM\u300d\u3082\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3067\u3059\u304c\u3001\u3053\u306e2\u3064\u306e\u8a8d\u8a3c\u306e\u5834\u5408\u3001\u300c\u691c\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\u65b9\u6cd5\u300d\u306f\u53d7\u4fe1\u8005\u306b\u59d4\u306d\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001DMARC\u306e\u5834\u5408\u3001<strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u8005\u304c\u300c\u691c\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\u65b9\u6cd5\u300d\u3092\u8868\u660e\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd<\/strong>\u3067\u3059\u3002<\/p>\n<p>DMARC\u306b\u306f\u3001SPF\u3084DKIM\u306e\u50cd\u304d\u3092\u88dc\u5f37\u3057\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u3092\u3059\u308b\u5f79\u5272\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001DMARC\u306f\u4e0b\u8a185\u3064\u3092\u7528\u3044\u3066\u8a8d\u8a3c\u3092\u304a\u3053\u306a\u3044\u307e\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>SPF<\/li>\n<li>DKIM<\/li>\n<li>DMARC\u30dd\u30ea\u30b7\u30fc<\/li>\n<li>DMARC\u30ec\u30b3\u30fc\u30c9<\/li>\n<li><span style=\"font-size: 14px;\">DMARC\u30ec\u30dd\u30fc\u30c8<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u308c\u3089\u304c\u3069\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u6301\u3064\u306e\u304b\u3001\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>SPF\uff1a\u9001\u4fe1\u5143\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092IP\u30a2\u30c9\u30ec\u30b9\u306b\u3066\u5224\u5225<\/h3>\n<p>SPF (Sender Policy Framework)\u306f\u3001\u9001\u4fe1\u8005\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5229\u7528\u3057\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3067\u3059\u3002<\/p>\n<p><strong>\u9001\u4fe1\u30e1\u30fc\u30eb\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068DNS\u30b5\u30fc\u30d0\u30fc\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3092\u691c\u8a3c\u3057\u3001\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u53ef\u5426\u3092\u6c7a\u5b9a<\/strong>\u3057\u307e\u3059\u3002<\/p>\n<p>SPF\u306e\u4ed5\u7d44\u307f\u306f\u3001\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"well2\">\n<ol>\n<li>\u53d7\u4fe1\u5074\u304c\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u308b\u3068\u3001\u691c\u8a3c\u306e\u305f\u3081\u306b\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3078SPF\u30ec\u30b3\u30fc\u30c9\u3092\u8981\u6c42\u3059\u308b<\/li>\n<li>\u8981\u6c42\u3092\u53d7\u3051\u53d6\u3063\u305f\u9001\u4fe1\u5143DNS\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306bSPF\u30ec\u30b3\u30fc\u30c9\u3092\u9001\u4fe1\u3059\u308b<\/li>\n<li>\u53d7\u4fe1\u5074\u306f\u3001\u5165\u624b\u3057\u305fSPF\u30ec\u30b3\u30fc\u30c9\u3068\u5b9f\u969b\u306b\u9001\u3089\u308c\u3066\u304d\u305f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u6bd4\u8f03\u3059\u308b\n<ol style=\"list-style-type: lower-alpha;\">\n<li>IP\u30a2\u30c9\u30ec\u30b9\u304c\u4e00\u81f4\uff1apass\uff08\u8a8d\u8a3c\u6210\u529f\uff09<\/li>\n<li>IP\u30a2\u30c9\u30ec\u30b9\u304c\u4e0d\u4e00\u81f4\uff1afail\uff08\u8a8d\u8a3c\u5931\u6557\uff09<\/li>\n<li>\u9001\u4fe1\u5143\u304cSPF\u30ec\u30b3\u30fc\u30c9\u3092\u516c\u958b\u3057\u3066\u3044\u306a\u3044\u5834\u5408\uff1anone<\/li>\n<\/ol>\n<\/li>\n<li>\u8a8d\u8a3c\u7d50\u679c\u3092\u5143\u306b\u3001\u53d7\u4fe1\u5074\u306f\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3059\u308b\u304b\u5426\u304b\u6c7a\u5b9a\u3059\u308b<\/li>\n<\/ol>\n<\/div>\n<p>SPF\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"s_table\"><table style=\"width: 100%; height: 126px;\">\n<tbody>\n<tr style=\"height: 10px;\">\n<th style=\"height: 10px; width: 15.2467%;\">SPF\u306e\u30e1\u30ea\u30c3\u30c8<\/th>\n<td style=\"height: 10px; width: 84.6412%;\">\n<ul>\n<li>SPF\u30ec\u30b3\u30fc\u30c9\u3092\u516c\u958b\u3059\u308b\u3060\u3051\u3067\u5229\u7528\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr style=\"height: 116px;\">\n<th style=\"height: 116px; width: 15.2467%;\">SPF\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/th>\n<td style=\"height: 116px; width: 84.6412%;\">\n<ul>\n<li>\u30e1\u30fc\u30eb\u9001\u4fe1\u6642\u306b\u30b5\u30fc\u30d0\u30fc\u3092\u4e2d\u7d99\u3059\u308b\u3068IP\u30a2\u30c9\u30ec\u30b9\u304c\u5909\u66f4\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b<\/li>\n<li>SPF\u30ec\u30b3\u30fc\u30c9\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u306f\u9001\u4fe1\u5143\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u305f\u3081\u3001\u4e2d\u7d99\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u308aIP\u30a2\u30c9\u30ec\u30b9\u304c\u5909\u66f4\u3055\u308c\u3066\u5c4a\u304f\u3068\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3067\u3082fail\uff08\u8a8d\u8a3c\u5931\u6557\uff09\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p>\u7dcf\u52d9\u7701\u304c\u516c\u8868\u3057\u3066\u3044\u308b\u8cc7\u6599\u306b\u3088\u308b\u3068\u3001\u65e5\u672c\u306b\u304a\u3051\u308bSPF\u306e\u666e\u53ca\u7387\u306f<strong>67.3%<\/strong>\uff08jp \u30c9\u30e1\u30a4\u30f3\u540d\u306e\u5e73\u5747\u5024\uff09\u3067\u3059\u3002<\/p>\n<p style=\"text-align: right;\">\u203b\u51fa\u5178\uff1a<a href=\"https:\/\/www.soumu.go.jp\/main_content\/000801033.pdf\" target=\"_blank\" rel=\"noopener\">\u7dcf\u52d9\u7701<\/a><\/p>\n<h3>DKIM\uff1a\u96fb\u5b50\u7f72\u540d\u306b\u3066\u306a\u308a\u3059\u307e\u3057\u3092\u691c\u77e5\u3059\u308b<\/h3>\n<p>DKIM (DomainKeys Identified Mail) \u306f\u3001\u96fb\u5b50\u7f72\u540d\u3092\u7528\u3044\u305f\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3067\u3059\u3002<\/p>\n<p><strong>DKIM\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u53d7\u4fe1\u8005\u306f\u30e1\u30fc\u30eb\u306b\u306a\u308a\u3059\u307e\u3057\u3084\u6539\u3056\u3093\u304c\u306a\u3044\u304b\u3092\u691c\u77e5\u3067\u304d\u308b<\/strong>\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DKIM\u306e\u4ed5\u7d44\u307f\u306f\u3001\u4e0b\u8a18\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"well2\">\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li>DKIM\u3067\u9001\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb\u306f\u79d8\u5bc6\u9375\u3067\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u691c\u8a3c\u306e\u305f\u3081\u306b\u53d7\u4fe1\u5074\u306f\u9001\u4fe1\u5143\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3078\u516c\u958b\u9375\u3092\u8981\u6c42\u3059\u308b<\/li>\n<li>\u8981\u6c42\u3092\u53d7\u3051\u305f\u9001\u4fe1\u5143DNS\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u516c\u958b\u9375\u306e\u60c5\u5831\u3092\u53d7\u4fe1\u5074\u306b\u9001\u4fe1\u3059\u308b<\/li>\n<li>\u516c\u958b\u9375\u3092\u53d7\u3051\u53d6\u3063\u305f\u53d7\u4fe1\u5074\u306f\u3001\u9001\u4fe1\u5143\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u96fb\u5b50\u7f72\u540d\u3092\u691c\u8a3c\u3059\u308b<\/li>\n<li>\u691c\u8a3c\u304c\u6210\u529f\u3059\u308c\u3070\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u3089\u308c\u305f\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3057\u3001\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3059\u308b<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/div>\n<p>DKIM\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"s_table\"><table style=\"width: 100%; height: 236px;\">\n<tbody>\n<tr style=\"height: 59px;\">\n<th style=\"height: 59px;\">DKIM\u306e\u30e1\u30ea\u30c3\u30c8<\/th>\n<td style=\"height: 59px;\">\n<ul>\n<li>\u30e1\u30fc\u30eb\u304c\u4e2d\u7d99\u30b5\u30fc\u30d0\u30fc\u3092\u7d4c\u7531\u3057\u3066\u53d7\u4fe1\u5074\u306b\u9001\u3089\u308c\u3066\u3082\u3001\u96fb\u5b50\u7f72\u540d\u3067\u691c\u8a3c\u3059\u308b\u305f\u3081\u8aa4\u5224\u65ad\u306b\u306a\u308a\u306b\u304f\u3044<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr style=\"height: 177px;\">\n<th style=\"height: 177px;\">DKIM\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/th>\n<td style=\"height: 177px;\">\n<ul>\n<li>PKI\uff08\u516c\u958b\u9375\u6697\u53f7\u57fa\u76e4\uff1a\u516c\u958b\u9375\u3068\u79d8\u5bc6\u9375\u3092\u5229\u7528\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u901a\u4fe1\u3092\u5b89\u5168\u306b\u304a\u3053\u306a\u3046\u6280\u8853\uff09\u3092\u6574\u5099\u3059\u308b\u305f\u3081\u3001\u516c\u958b\u9375\u3068\u79d8\u5bc6\u9375\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u624b\u9593\u304c\u304b\u304b\u308b<\/li>\n<li>\u9001\u4fe1\u5074\u30fb\u53d7\u4fe1\u5074\u3068\u3082\u306bSPF\u3088\u308a\u3082\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u8ca0\u8377\u304c\u304b\u304b\u308b\n<ul>\n<li>\u9001\u4fe1\u5074\u2026\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3059\u308b\u4f5c\u696d<\/li>\n<li>\u53d7\u4fe1\u5074\u2026\u96fb\u5b50\u7f72\u540d\u3092\u691c\u8a3c\u3059\u308b\u4f5c\u696d<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h3>DMARC\u30dd\u30ea\u30b7\u30fc\uff1a\u7167\u5408\u3055\u308c\u305f\u5f8c\u306e\u30e1\u30fc\u30eb\u51e6\u7406\u3092\u6c7a\u3081\u308b<\/h3>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3068\u306f\u3001<strong>\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304cDMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u3068\u304d\u306b\u3069\u306e\u3088\u3046\u306b\u30e1\u30fc\u30eb\u3092\u51e6\u7406\u3059\u308b\u304b\u3001\u9001\u4fe1\u5074\u304c\u5ba3\u8a00\u3059\u308b\u3082\u306e<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u53d7\u4fe1\u5074\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u53c2\u8003\u306b\u3057\u3066\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u3092\u304a\u3053\u306a\u3044\u307e\u3059\u3002<\/p>\n<p>\u300c\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u3089\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u6b32\u3057\u3044\u300d\u3068\u4f1d\u3048\u308b\u306e\u306f\u9001\u4fe1\u5074\u3067\u3059\u304c\u3001\u5b9f\u969b\u306b\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u3092\u304a\u3053\u306a\u3046\u306e\u306f\u53d7\u4fe1\u8005\u5074\u3067\u3042\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>DMARC\u30ec\u30dd\u30fc\u30c8\uff1a\u30e1\u30fc\u30eb\u304c\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3067\u304d\u308b<\/h3>\n<p><strong>DMARC\u8a8d\u8a3c\u306e\u7d50\u679c\u306f\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3068\u3057\u3066\u9001\u4fe1\u8005\u306b\u5c4a\u304d\u307e\u3059<\/strong>\u3002<\/p>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u898b\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u8a8d\u8a3c\u306e\u6210\u529f\u3084\u5931\u6557\u306e\u5272\u5408\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u304c\u4f55\u3089\u304b\u306e\u30a8\u30e9\u30fc\u3067\u7a3c\u52d5\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3082\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u304b\u3089\u5224\u65ad\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h3>DMARC\u30ec\u30b3\u30fc\u30c9\uff1a\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30dd\u30ea\u30b7\u30fc\u3092\u767b\u9332\u3059\u308b<\/h3>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306f\u3001<strong>DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u306b\u3066\u8a18\u8f09\u3057\u305f\u3082\u306e<\/strong>\u3067\u3059\u3002<\/p>\n<p>DMARC\u8a8d\u8a3c\u3092\u304a\u3053\u306a\u3046\u305f\u3081\u306b\u3001DNS\u30b5\u30fc\u30d0\u30fc\u306bDMARC\u30dd\u30ea\u30b7\u30fc\u3092\u767b\u9332\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u300cDNS TXT\u30ec\u30b3\u30fc\u30c9\u300d\u3068\u3057\u3066DNS\u30b5\u30fc\u30d0\u30fc\u306b\u8ffd\u52a0\u30fb\u516c\u958b\u3059\u308b\u3053\u3068\u3067\u3001\u8a8d\u8a3c\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><strong>\uff3c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u5fc5\u8981\u306aDMARC\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff0f<a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/download2\/dmarc_point\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-16012\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png\" alt=\"\" width=\"700\" height=\"210\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png 700w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc-300x90.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/strong><\/p>\n<h2>DMARC\u306e3\u3064\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-8689\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-5.jpeg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-5.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-5-300x200.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-5-1024x683.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-5-768x512.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>DMARC\u306b\u306f\u3001\u4e3b\u306b\u4e0b\u8a183\u3064\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u8a8d\u8a3c\u5931\u6557\u3068\u306a\u3063\u305f\u30e1\u30fc\u30eb\u306e\u6319\u52d5\u3092\u5b9a\u3081\u3089\u308c\u308b<\/li>\n<li>\u53d7\u4fe1\u8005\u304b\u3089\u8a8d\u8a3c\u7d50\u679c\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308c\u308b<\/li>\n<li>\u7b2c\u4e09\u8005\u7f72\u540d\uff08\u4ee3\u7406\u7f72\u540d\uff09\u3092\u62d2\u5426\u3067\u304d\u308b<\/li>\n<\/ol>\n<p>\u305d\u308c\u305e\u308c\u306e\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u3001\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u3010\u30e1\u30ea\u30c3\u30c81\u3011\u8a8d\u8a3c\u5931\u6557\u3068\u306a\u3063\u305f\u30e1\u30fc\u30eb\u306e\u6319\u52d5\u3092\u5b9a\u3081\u3089\u308c\u308b<\/h3>\n<p>DMARC\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8a8d\u8a3c\u5931\u6557\u3068\u306a\u3063\u305f\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u8005\u306b\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u6b32\u3057\u3044\u304b\u5b9a\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u8a8d\u8a3c\u304c\u5931\u6557\u3068\u306a\u3063\u305f\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u3001\u4e0b\u8a183\u3064\u306e\u65b9\u6cd5\u304c\u5b9a\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li>\u300cnone\u300d\u2026\u4f55\u3082\u6307\u5b9a\u3057\u306a\u3044\uff08\u53d7\u4fe1\u8005\u306e\u8a2d\u5b9a\u306b\u4efb\u305b\u308b\uff09<\/li>\n<li>\u300cquarantine\u300d\u2026\u9694\u96e2\u3059\u308b\uff08\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306a\u3069\u306e\u5225\u306e\u5834\u6240\u3067\u53d7\u4fe1\u3059\u308b\uff09<\/li>\n<li>\u300creject\u300d\u2026\u53d7\u4fe1\u62d2\u5426\uff08\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u3089\u305a\u306b\u7834\u68c4\u3059\u308b\uff09<\/li>\n<\/ul>\n<\/div>\n<p>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u306f\u3001\u300creject\u300d\u3092\u9078\u629e\u3059\u308b\u306e\u304c\u6700\u3082\u6709\u52b9\u3067\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001<strong>DMARC\u8a8d\u8a3c\u304c\u8aa4\u5224\u5b9a\u306b\u306a\u308a\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3067\u3042\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u53d7\u4fe1\u3055\u308c\u306a\u3044\u4f8b\u3082\u898b\u3089\u308c\u307e\u3059<\/strong>\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u3042\u3048\u3066\u300cnone\u300d\u3092\u9078\u629e\u3057\u3001\u51e6\u7406\u65b9\u6cd5\u3092\u53d7\u4fe1\u8005\u306e\u5224\u65ad\u306b\u4efb\u305b\u308b\u306e\u3082\u3072\u3068\u3064\u306e\u624b\u3067\u3059\u3002<\/p>\n<h3>\u3010\u30e1\u30ea\u30c3\u30c82\u3011\u53d7\u4fe1\u8005\u304b\u3089\u8a8d\u8a3c\u7d50\u679c\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308c\u308b<\/h3>\n<p>DMARC\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3068\u3001<strong>\u53d7\u4fe1\u8005\u304b\u3089\u8a8d\u8a3c\u7d50\u679c\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308c\u308b<\/strong>\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u3067\u308f\u304b\u308b\u3053\u3068\u306e\u4f8b\u306f\u3001\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li>\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u3084\u5bfe\u5fdc\u3059\u308b\u30b5\u30fc\u30d3\u30b9<\/li>\n<li>DMARC\u8a8d\u8a3c\u306b\u6210\u529f\u3057\u305f\u30e1\u30fc\u30eb\u306e\u5272\u5408<\/li>\n<li>DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u30b5\u30fc\u30d0\u30fc\u3084\u30b5\u30fc\u30d3\u30b9<\/li>\n<li>\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u3001\u53d7\u4fe1\u5074\u304c\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3057\u305f\u304b<\/li>\n<\/ul>\n<\/div>\n<p>\u51e6\u7406\u65b9\u6cd5\u3092\u300cnone\u300d\u306b\u8a2d\u5b9a\u3057\u53d7\u4fe1\u5074\u306b\u51e6\u7406\u65b9\u6cd5\u3092\u4efb\u305b\u305f\u5834\u5408\u3067\u3082\u3001\u691c\u8a3c\u7d50\u679c\u306e\u30ec\u30dd\u30fc\u30c8\u304b\u3089\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u5272\u5408\u3084\u30a8\u30e9\u30fc\u60c5\u5831\u306a\u3069\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<h3>\u3010\u30e1\u30ea\u30c3\u30c83\u3011\u7b2c\u4e09\u8005\u7f72\u540d\uff08\u4ee3\u7406\u7f72\u540d\uff09\u3092\u62d2\u5426\u3067\u304d\u308b<\/h3>\n<p>DKIM\u3092\u8a2d\u5b9a\u3057\u3066DMARC\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u7b2c\u4e09\u8005\u7f72\u540d\uff08\u4ee3\u7406\u7f72\u540d\uff09\u3092\u62d2\u5426\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u7c21\u5358\u306b\u8a00\u3046\u3068\u3001<strong>From\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3068\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u3001\u53d7\u4fe1\u8005\u5074\u306f\u30e1\u30fc\u30eb\u53d7\u4fe1\u3092\u62d2\u5426\u3067\u304d\u308b<\/strong>\u306e\u3067\u3059\u3002<\/p>\n<p>DKIM\u306e\u307f\u306e\u5834\u5408\u3001\u7b2c\u4e09\u8005\u7f72\u540d\u304c\u539f\u56e0\u3067\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3067\u304d\u306a\u304b\u3063\u305f\u3068\u3057\u3066\u3082\u539f\u56e0\u304c\u308f\u304b\u3089\u306a\u3044\u307e\u307e\u3067\u3059\u304c\u3001DMARC\u3092\u5229\u7528\u3059\u308b\u3068\u30ec\u30dd\u30fc\u30c8\u306b\u3066\u7b2c\u4e09\u8005\u7f72\u540d\u304c\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>DMARC\u306e3\u3064\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-8688\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-4.jpeg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-4.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-4-300x200.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-4-1024x683.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-4-768x512.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>DMARC\u306f\u512a\u308c\u305f\u8a8d\u8a3c\u65b9\u5f0f\u3067\u3059\u304c\u3001\u6b21\u306e\u3088\u3046\u306a\u30c7\u30e1\u30ea\u30c3\u30c8\u3082\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u7ba1\u7406\u8005\u306e\u8ca0\u62c5\u304c\u5927\u304d\u304f\u306a\u308b<\/li>\n<li>\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u5c11\u306a\u3044<\/li>\n<li>DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u89e3\u8aad\u3059\u308b\u306b\u306f\u77e5\u8b58\u304c\u5fc5\u8981<\/li>\n<\/ol>\n<p>\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u56de\u907f\u3059\u308b\u65b9\u6cd5\u3082\u304a\u4f1d\u3048\u3057\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u3010\u30c7\u30e1\u30ea\u30c3\u30c81\u3011\u7ba1\u7406\u8005\u306e\u8ca0\u62c5\u304c\u5927\u304d\u304f\u306a\u308b<\/h3>\n<p>1\u3064\u76ee\u306f\u3001\u9001\u4fe1\u5074\u306e\u7ba1\u7406\u8ca0\u62c5\u304c\u5927\u304d\u304f\u306a\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306f\u8a8d\u8a3c\u304c\u304a\u3053\u306a\u308f\u308c\u305f\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u4fe1\u5074\u306b\u5c4a\u304f\u305f\u3081\u3001\u5927\u4f01\u696d\u306a\u3069\u3067\u306f1\u65e5\u306b\u4f55\u767e\u901a\u3082\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u3088\u3046\u306a\u5bfe\u7b56\u3092\u304a\u3053\u306a\u3046\u3068\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u7ba1\u7406\u3059\u308b\u624b\u9593\u304c\u6e1b\u3089\u305b\u308b\u306e\u3067\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li>DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u53d7\u4fe1\u30fb\u4fdd\u5b58\u30fb\u5206\u6790\u306b\u7279\u5316\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b<\/li>\n<li>DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u53d7\u4fe1\u3068\u4fdd\u5b58\u306e\u305f\u3081\u306e\u30b0\u30eb\u30fc\u30d7\u3084\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u306a\u304a\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u5225\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306a\u3069\u306b\u632f\u308a\u5206\u3051\u308c\u3070\u624b\u9593\u524a\u6e1b\u3092\u671f\u5f85\u3067\u304d\u308b\u3082\u306e\u306e\u3001\u7d99\u7d9a\u3057\u3066\u7ba1\u7406\u3059\u308b\u306e\u306f\u5bb9\u6613\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u7ba1\u7406\u3059\u308b\u624b\u9593\u3092\u524a\u6e1b\u3057\u305f\u3044\u4eba\u306b\u6700\u3082\u304a\u3059\u3059\u3081\u306a\u306e\u306f<strong>\u30b5\u30fc\u30d3\u30b9\u5229\u7528\u3059\u308b\u3053\u3068<\/strong>\u3067\u3059\u3002<\/p>\n<h3>\u3010\u30c7\u30e1\u30ea\u30c3\u30c82\u3011\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u5c11\u306a\u3044<\/h3>\n<p><strong>DMARC\u306f\u6bd4\u8f03\u7684\u65b0\u3057\u3044\u6280\u8853\u3067\u3042\u308b\u305f\u3081\u77e5\u540d\u5ea6\u304c\u4f4e\u304f\u3001\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u5c11\u306a\u3044<\/strong>\u3053\u3068\u3082\u30c7\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u6d77\u5916\u3067\u306fGoogle\u3084Yahoo!\u3068\u3044\u3063\u305f\u5927\u4f01\u696d\u304c\u5c0e\u5165\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u3001\u4eca\u5f8c\u306f\u56fd\u5185\u3067\u3082DMARC\u5bfe\u5fdc\u306e\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u304c\u5897\u3048\u308b\u3053\u3068\u304c\u4e88\u60f3\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>DMARC\u3092\u5229\u7528\u3059\u308b\u3068\u3001<strong>\u30e1\u30fc\u30eb\u306e\u6539\u3056\u3093\u3084\u306a\u308a\u3059\u307e\u3057\u304c\u306a\u3044\u304b\u9001\u4fe1\u5074\u3067\u30c1\u30a7\u30c3\u30af\u3067\u304d\u308b<\/strong>\u70b9\u304c\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<p>DMARC\u306e\u5c0e\u5165\u304c\u5f53\u305f\u308a\u524d\u306b\u306a\u308b\u5c06\u6765\u306b\u5099\u3048\u3001\u65e9\u3044\u6bb5\u968e\u304b\u3089\u5c0e\u5165\u30fb\u904b\u7528\u3067\u304d\u308b\u4f53\u5236\u3092\u6574\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p style=\"text-align: center;\"><strong>\uff3c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u5fc5\u8981\u306aDMARC\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff0f<a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/download2\/dmarc_point\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-16012\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png\" alt=\"\" width=\"700\" height=\"210\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png 700w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc-300x90.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/strong><\/p>\n<h3>\u3010\u30c7\u30e1\u30ea\u30c3\u30c83\u3011DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u89e3\u8aad\u3059\u308b\u306b\u306f\u77e5\u8b58\u304c\u5fc5\u8981<\/h3>\n<p>DMARC\u3092\u5229\u7528\u3059\u308b\u3068\u5b9a\u671f\u7684\u306bDMARC\u30ec\u30b3\u30fc\u30c9\u3067\u8a8d\u8a3c\u7d50\u679c\u304c\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u30ec\u30dd\u30fc\u30c8\u3092\u89e3\u8aad\u3059\u308b\u306b\u306f\u77e5\u8b58\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u306fxml\u30d5\u30a1\u30a4\u30eb\u3067\u6b21\u306e\u3088\u3046\u306b\u9001\u3089\u308c\u3066\u304d\u307e\u3059\u3002<\/p>\n<div class=\"s_table\"><table>\n<tbody>\n<tr>\n<td>\n<details>\n<summary>XML \u5f62\u5f0f\u306e DMARC \u30ec\u30dd\u30fc\u30c8\u306e\u4f8b\uff08\u203b\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u5168\u6587\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\uff09<\/summary>\n<p>&lt;?xml version=&#8221;1.0&#8243; encoding=&#8221;UTF-8&#8243; ?&gt;<\/p>\n<p>&lt;feedback&gt;<\/p>\n<p>&lt;report_metadata&gt;<\/p>\n<p>&lt;org_name&gt;solarmora.com&lt;\/org_name&gt;<\/p>\n<p>&lt;email&gt;noreply-dmarc-support@solarmora.com&lt;\/email&gt;<\/p>\n<p>&lt;extra_contact_info&gt;http:\/\/solarmora.com\/dmarc\/support&lt;\/extra_contact_info&gt;<\/p>\n<p>&lt;report_id&gt;9391651994964116463&lt;\/report_id&gt;<\/p>\n<p>&lt;date_range&gt;<\/p>\n<p>&lt;begin&gt;1335571200&lt;\/begin&gt;<\/p>\n<p>&lt;end&gt;1335657599&lt;\/end&gt;<\/p>\n<p>&lt;\/date_range&gt;<\/p>\n<p>&lt;\/report_metadata&gt;<\/p>\n<p>&lt;policy_published&gt;<\/p>\n<p>&lt;domain&gt;bix-business.com&lt;\/domain&gt;<\/p>\n<p>&lt;adkim&gt;r&lt;\/adkim&gt;<\/p>\n<p>&lt;aspf&gt;r&lt;\/aspf&gt;<\/p>\n<p>&lt;p&gt;none&lt;\/p&gt;<\/p>\n<p>&lt;sp&gt;none&lt;\/sp&gt;<\/p>\n<p>&lt;pct&gt;100&lt;\/pct&gt;<\/p>\n<p>&lt;\/policy_published&gt;<\/p>\n<p>&lt;record&gt;<\/p>\n<p>&lt;row&gt;<\/p>\n<p>&lt;source_ip&gt;203.0.113.209&lt;\/source_ip&gt;<\/p>\n<p>&lt;count&gt;2&lt;\/count&gt;<\/p>\n<p>&lt;policy_evaluated&gt;<\/p>\n<p>&lt;disposition&gt;none&lt;\/disposition&gt;<\/p>\n<p>&lt;dkim&gt;fail&lt;\/dkim&gt;<\/p>\n<p>&lt;spf&gt;pass&lt;\/spf&gt;<\/p>\n<p>&lt;\/policy_evaluated&gt;<\/p>\n<p>&lt;\/row&gt;<\/p>\n<p>&lt;identifiers&gt;<\/p>\n<p>&lt;header_from&gt;bix-business.com&lt;\/header_from&gt;<\/p>\n<p>&lt;\/identifiers&gt;<\/p>\n<p>&lt;auth_results&gt;<\/p>\n<p>&lt;dkim&gt;<\/p>\n<p>&lt;domain&gt;bix-business.com&lt;\/domain&gt;<\/p>\n<p>&lt;result&gt;fail&lt;\/result&gt;<\/p>\n<p>&lt;human_result&gt;&lt;\/human_result&gt;<\/p>\n<p>&lt;\/dkim&gt;<\/p>\n<p>&lt;spf&gt;<\/p>\n<p>&lt;domain&gt;bix-business.com&lt;\/domain&gt;<\/p>\n<p>&lt;result&gt;pass&lt;\/result&gt;<\/p>\n<p>&lt;\/spf&gt;<\/p>\n<p>&lt;\/auth_results&gt;<\/p>\n<p>&lt;\/record&gt;<\/p>\n<p>&lt;\/feedback&gt;<\/p>\n<\/details>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p style=\"text-align: right;\">\u203b\u5f15\u7528 : <a href=\"https:\/\/support.google.com\/a\/answer\/10032472?hl=ja\" target=\"_blank\" rel=\"noopener\">Google<\/a><\/p>\n<p>xml\u30d5\u30a1\u30a4\u30eb\u306e\u72b6\u614b\u3067DMARC\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u691c\u8a3c\u30fb\u5206\u6790\u3059\u308b\u306e\u306f\u3001\u5c02\u9580\u7684\u306a\u77e5\u8b58\u304c\u5fc5\u8981\u306b\u306a\u308b\u3046\u3048\u624b\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u969b\u306b\u3001<strong>DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u53ef\u8996\u5316\u3057\u305f\u3046\u3048\u3067\u691c\u8a3c\u30fb\u5206\u6790\u3059\u308b\u30c4\u30fc\u30eb<\/strong>\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u4e00\u76ee\u3067DMARC\u306e\u691c\u8a3c\u7d50\u679c\u304c\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u52b9\u7387\u3088\u304fDMARC\u306e\u691c\u8a3c\u3092\u5b9f\u65bd\u3057\u305f\u3044\u65b9\u306f\u3001\u30c4\u30fc\u30eb\u5c0e\u5165\u3092\u691c\u8a0e\u3057\u3066\u307f\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><strong>\uff3c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u5fc5\u8981\u306aDMARC\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff0f<a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/download2\/dmarc_point\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-16012\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png\" alt=\"\" width=\"700\" height=\"210\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png 700w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc-300x90.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/strong><\/p>\n<h2>DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-8693\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-9.jpeg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-9.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-9-300x200.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-9-1024x683.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-9-768x512.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>DMARC\u8a8d\u8a3c\u3092\u304a\u3053\u306a\u3046\u305f\u3081\u306b\u306f\u3001<strong>SPF\u30fbDKIM\u30fbDMARC\u305d\u308c\u305e\u308c\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u672c\u7ae0\u3067\u306f\u3001\u5404\u8a2d\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>SPF\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p>SPF\u306f\u3001\u9001\u4fe1\u5074\u304cDNS\u30b5\u30fc\u30d0\u30fc\u306bSPF\u30ec\u30b3\u30fc\u30c9\u3092\u767b\u9332\u30fb\u516c\u958b\u3059\u308b\u3053\u3068\u3067\u8a2d\u5b9a\u304c\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u304c\u300c.TXT\u300d\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u304b\u3089\u30b5\u30fc\u30d0\u30fc\u306b\u767b\u9332\u30fb\u516c\u958b\u3059\u308b<\/strong>\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u8a2d\u5b9a\u4f8b\u306f\u3001\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"s_table\"><table>\n<tbody>\n<tr>\n<td>\u201d\u201dv=spf1 a:www***.sakura.ne.jp mx ~all\u201d\u201d<\/p>\n<p>***\u306e\u90e8\u5206\u306b\u306f\u304a\u4f7f\u3044\u306e\u30b5\u30fc\u30d0\u540d\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b5\u30fc\u30d0\u540d\u306f\u3001\u30b5\u30fc\u30d0\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\u306e\u300c\u30b5\u30fc\u30d0\u60c5\u5831\u300d\u304b\u3089\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002(webparkXXXX.sakura.ne.jp \u306e XXXX \u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002)<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p style=\"text-align: right;\">\u203b\u5f15\u7528 : <a href=\"https:\/\/www.itc.u-tokyo.ac.jp\/education\/services\/webpark\/support\/page-3804\/\" target=\"_blank\" rel=\"noopener\">\u6771\u4eac\u5927\u5b66\u60c5\u5831\u57fa\u76e4\u30bb\u30f3\u30bf\u30fc<\/a><\/p>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u8aa4\u5224\u5b9a\u306b\u3088\u308b\u30e1\u30fc\u30eb\u306e\u672a\u9054\u3092\u9632\u3050\u305f\u3081\u306b\u3082\u3001SPF\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>DKIM\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p>DKIM\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3001<strong>\u4e8b\u524d\u306b\u79d8\u5bc6\u9375\u3068\u516c\u958b\u9375\u3092\u30bb\u30c3\u30c8\u3067\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001SPF\u3088\u308a\u3082\u5c11\u3057\u624b\u9593\u304c\u304b\u304b\u308a\u307e\u3059<\/strong>\u3002<\/p>\n<p>DKIM\u306e\u8a2d\u5b9a\u65b9\u6cd5\u306f\u3001\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li>\u9001\u4fe1\u5143\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u79d8\u5bc6\u9375\u3068\u516c\u958b\u9375\u3092\u7528\u610f\u3059\u308b\uff08DKIM\u9375\u3092\u4f5c\u6210\u3059\u308b\u30c4\u30fc\u30eb\u3092\u5229\u7528\u3059\u308b\u3068\u4fbf\u5229\uff09<\/li>\n<li>\u9375\u3092\u7528\u610f\u3057\u305f\u5f8c\u3001DNS\u30b5\u30fc\u30d0\u30fc\u306b\u516c\u958b\u9375\u306e\u60c5\u5831\u3092\u30c6\u30ad\u30b9\u30c8\u30ec\u30b3\u30fc\u30c9\u3067\u516c\u958b\u3067\u304d\u308b\u3088\u3046\u306b\u767b\u9332\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>DKIM\u306b\u4f7f\u7528\u3059\u308b\u9375\u306e\u60c5\u5831\u304c\u6f0f\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u306a\u308a\u3059\u307e\u3057\u306a\u3069\u306e\u88ab\u5bb3\u306b\u906d\u3046\u305f\u3081\u3001\u9375\u306f\u53b3\u91cd\u306b\u7ba1\u7406\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p style=\"text-align: center;\"><strong>\uff3c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u5fc5\u8981\u306aDMARC\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff0f<a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/download2\/dmarc_point\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-16012\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png\" alt=\"\" width=\"700\" height=\"210\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png 700w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc-300x90.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/strong><\/p>\n<h3>DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p><strong>SPF\u3068DKIM\u306e\u8a2d\u5b9a\u7d42\u4e86\u5f8c\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a<\/strong>\u3057\u307e\u3059\u3002<\/p>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u4f8b\u304a\u3088\u3073\u8a2d\u5b9a\u65b9\u6cd5\u306f\u3001\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"s_table\"><table>\n<tbody>\n<tr>\n<td>\u3010DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u4f8b\u3011<\/p>\n<p>_dmarc.solarmora.com<\/p>\n<p>v=DMARC1; p=none; rua=mailto:dmarc-reports@solarmora.com<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p style=\"text-align: right;\">\u203b\u5f15\u7528 : <a href=\"https:\/\/support.google.com\/a\/answer\/2466563?hl=ja\" target=\"_blank\" rel=\"noopener\">Google<\/a><\/p>\n<ol>\n<li>\u5148\u982d\u306e\u300c_dmarc.\u300d\u306e\u5f8c\u306b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b<\/li>\n<li>\u300cp=\u300d\u306e\u90e8\u5206\u306b\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u3068\u304d\u306e\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\n<ol style=\"list-style-type: lower-alpha;\">\n<li>\u300cnone\uff08\u4f55\u3082\u6307\u5b9a\u3057\u306a\u3044\uff09\u300d<\/li>\n<li>\u300cquarantine\uff08\u9694\u96e2\uff09\u300d<\/li>\n<li>\u300creject\uff08\u53d7\u4fe1\u62d2\u5426\uff09\u300d<\/li>\n<\/ol>\n<\/li>\n<li>\u300crua=\u300d\u306e\u90e8\u5206\u306b\u3001\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u4fe1\u3059\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b<\/li>\n<\/ol>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u304c\u7d42\u4e86\u3059\u308b\u3068\u3001DMARC\u8a8d\u8a3c\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>DMARC\u306e\u52d5\u4f5c\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-8687\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-3.jpeg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-3.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-3-300x200.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-3-1024x683.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-3-768x512.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><strong>DMARC\u30ec\u30b3\u30fc\u30c9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001SPF\u30fbDKIM\u30fbDMARC\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3059\u308b\u304b\u78ba\u8a8d\u3067\u304d\u307e\u3059<\/strong>\u3002<\/p>\n<p>DMARC\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u4f8b\u306f\u3001\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"well2\">\n<p>\u3010DMARC\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u4e00\u4f8b\u3011<\/p>\n<ul>\n<li>Gmail<\/li>\n<li>Outlook<\/li>\n<li>Yahoo!\u30e1\u30fc\u30eb<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u308c\u3089\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u5b9b\u306b\u3001DMARC\u3092\u8a2d\u5b9a\u3057\u305f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u8a73\u7d30\u3092\u78ba\u8a8d\u3057\u3001SPF\u30fbDKIM\u30fbDMARC\u306e\u3059\u3079\u3066\u304c\u300cpass\u300d\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u3001\u554f\u984c\u306a\u304fDMARC\u306e\u8a2d\u5b9a\u304c\u3067\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>DMAR\u306e\u5c0e\u5165\u3067\u3059\u3079\u3066\u306e\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u9632\u3052\u308b\u308f\u3051\u3067\u306f\u306a\u3044<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-8686\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-2.jpeg\" alt=\"\" width=\"1200\" height=\"726\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-2.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-2-300x182.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-2-1024x620.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-2-768x465.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u3068\u3057\u3066\u6709\u52b9\u306aDMARC\u3067\u3059\u304c\u3001\u5c0e\u5165\u3057\u3066\u3082\u3059\u3079\u3066\u304c\u9632\u3052\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u6b21\u306e\u3088\u3046\u306a\u5834\u5408\u3001\u306a\u308a\u3059\u307e\u3057\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u76ee\u7684\u306e\u30e1\u30fc\u30eb\u3067\u3082\u53d7\u4fe1\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li>DMARC\u8a8d\u8a3c\u306e\u8aa4\u5224\u5b9a<\/li>\n<li>\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u305d\u306e\u3082\u306e\u304b\u3089\u306a\u308a\u3059\u307e\u3057\u3066\u3044\u305f\u5834\u5408\uff08\u203b\uff09<\/li>\n<\/ul>\n<p>\u203b\u305f\u3068\u3048\u3070\u3001yahooo.co.jp\u3068\u306a\u308a\u3059\u307e\u3057\u305f\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u4fe1\u3057\u3001SPF\u3084DKIM\u3092yahooo.co.jp\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u8981\u6c42\u3057\u305f\u5834\u5408\u306f\u8a8d\u8a3c\u304c\u6210\u529f\u3059\u308b<\/p>\n<\/div>\n<p>\u305d\u3053\u3067\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3092\u3088\u308a\u5f37\u5316\u3057\u305f\u3044\u65b9\u306b\u304a\u3059\u3059\u3081\u306a\u306e\u304c\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u691c\u77e5\u30b5\u30fc\u30d3\u30b9\u306e\u5c0e\u5165<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001Cacco\u306e\u300cO-PLUX\u300d\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u30ed\u30b0\u30a4\u30f3\u3092\u691c\u77e5\u3057\u305f\u969b\u306b\u300c2\u8981\u7d20\u8a8d\u8a3c\u300d\u300c\u30a2\u30af\u30bb\u30b9\u906e\u65ad\u300d\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3092\u9632\u6b62\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-22355\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2025\/04\/\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9-6-1000x506.png\" alt=\"\" width=\"1000\" height=\"506\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2025\/04\/\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9-6-1000x506.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2025\/04\/\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9-6-300x152.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2025\/04\/\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9-6-768x389.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2025\/04\/\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9-6-1536x778.png 1536w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2025\/04\/\u30b7\u30e7\u30fc\u30c8\u30b3\u30fc\u30c9-6.png 1580w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\r\n<p style=\"text-align: right;\"><span style=\"font-size: 10pt;\">\u203b\u53c2\u8003\uff1a<a href=\"https:\/\/frauddetection.cacco.co.jp\/o-plux\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\">Cacco Inc.<\/a><\/span><\/p>\n<p>\u4e07\u304c\u4e00\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306b\u3088\u3063\u3066\u60c5\u5831\u304c\u76d7\u307e\u308c\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u3067\u3082\u3001<strong>\u305d\u306e\u60c5\u5831\u3092\u7528\u3044\u305f\u30a2\u30af\u30bb\u30b9\u6bb5\u968e\u3067\u691c\u77e5\u3067\u304d\u307e\u3059<\/strong>\u3002<\/p>\n<p>\u7ba1\u7406\u8005\u306f\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u72b6\u6cc1\u3092\u628a\u63e1\u3067\u304d\u308b\u305f\u3081\u3001\u88ab\u5bb3\u3092\u6700\u5c0f\u9650\u306b\u7559\u3081\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u6b63\u5e38\u306a\u30e6\u30fc\u30b6\u30fc\u306f\u901a\u5e38\u3069\u304a\u308a\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u306e\u3067\u3001<strong>\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u3092\u640d\u306a\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u305b\u3093<\/strong>\u3002<\/p>\n<p>\u72ec\u81ea\u306e\u30c7\u30d0\u30a4\u30b9\u60c5\u5831\u30fb\u64cd\u4f5c\u60c5\u5831\u3092\u3082\u3068\u306b\u306a\u308a\u3059\u307e\u3057\u30ed\u30b0\u30a4\u30f3\u3092\u691c\u77e5\u3067\u304d\u308b\u300cO-PLUX\u300d\u306b\u3064\u3044\u3066\u3001\u8a73\u3057\u304f\u306f\u4e0b\u8a18\u306e\u30d0\u30ca\u30fc\u3092\u30af\u30ea\u30c3\u30af\u306e\u3046\u3048\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\uff01<\/p>\n<p><a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-26640\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-1000x300.png\" alt=\"O-PLUX_for finance\" width=\"1000\" height=\"300\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-1000x300.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-300x90.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-768x230.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-400x120.png 400w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-800x240.png 800w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-1200x360.png 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money.png 1400w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\r\n<p style=\"text-align: center;\">\u81ea\u793e\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u72b6\u6cc1\u304c\u5206\u304b\u308b\u30c8\u30e9\u30a4\u30a2\u30eb\u5229\u7528\u53d7\u4ed8\u4e2d\uff01<br \/><a class=\"q_button bt_blue pill sz_l\" href=\"https:\/\/frauddetection.cacco.co.jp\/various_download\/materials_o-pluxfinance\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\">O-PLUX\u306e\u8cc7\u6599DL\u306f\u3053\u3061\u3089<\/a><\/p>\n<h2>\u307e\u3068\u3081\uff1aDMARC\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3057\u3066\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3092\u9632\u3054\u3046<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-8692\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-8.jpeg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-8.jpeg 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-8-300x200.jpeg 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-8-1024x683.jpeg 1024w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/03\/media-230303-8-768x512.jpeg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>DMARC\u306f\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u3084\u30e1\u30fc\u30eb\u306e\u6539\u3056\u3093\u306a\u3069\u306e\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u300d\u306b\u6709\u52b9\u306a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u540c\u3058\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3067\u3042\u308bSPF\u3084DKIM\u3068\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5f37\u529b\u306a\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001DMARC\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u3066\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306f\u4e07\u5168\u3068\u8a00\u3048\u305a\u3001\u6b21\u306e\u3088\u3046\u306a\u5834\u5408\u3001DMARC\u306b\u3088\u308b\u8a8d\u8a3c\u306f\u901a\u904e\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<div class=\"well2\">\n<ul>\n<li>DMARC\u306e\u8aa4\u5224\u5b9a<\/li>\n<li>\u60aa\u610f\u306e\u3042\u308b\u7b2c\u4e09\u8005\u304c\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u305d\u306e\u3082\u306e\u304b\u3089\u306a\u308a\u3059\u307e\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u307e\u305f\u3001DMARC\u306e\u8a2d\u5b9a\u3084DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u8aad\u306b\u306f\u77e5\u8b58\u304c\u5fc5\u8981\u306b\u306a\u308b\u305f\u3081\u3001\u96e3\u3057\u3044\u3068\u611f\u3058\u308b\u65b9\u306f<strong>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u306a\u3069\u304c\u3067\u304d\u308b\u30c4\u30fc\u30eb<\/strong>\u3092\u4f7f\u7528\u3059\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>DMARC\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3057\u3066\u3001\u81ea\u793e\u3067\u3067\u304d\u308b\u5bfe\u7b56\u304b\u3089\u59cb\u3081\u3066\u307f\u3066\u306f\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p style=\"text-align: center;\"><strong>\uff3c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u5fc5\u8981\u306aDMARC\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff0f<a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/download2\/dmarc_point\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-16012\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png\" alt=\"\" width=\"700\" height=\"210\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc.png 700w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2023\/06\/CV\u30d0\u30ca\u30fc-300x90.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/strong><\/p>\n<p>\u306a\u304a\u3001\u5f53\u30b5\u30a4\u30c8\u3067\u306f\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u4e0d\u6b63\u5bfe\u7b56\u306b\u3064\u3044\u30663\u5206\u3067\u308f\u304b\u308b\u8cc7\u6599\u3092\u7121\u6599\u914d\u5e03<\/strong>\u3082\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306a\u3069\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3092\u4e88\u9632\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3057\u305f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u30d0\u30ca\u30fc\u3088\u308a\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<p><a href=\"https:\/\/frauddetection.cacco.co.jp\/o-motion\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-26640\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-1000x300.png\" alt=\"O-PLUX_for finance\" width=\"1000\" height=\"300\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-1000x300.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-300x90.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-768x230.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-400x120.png 400w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-800x240.png 800w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money-1200x360.png 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/wp-content\/uploads\/2026\/03\/O-PLUX_for-money.png 1400w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\r\n<p style=\"text-align: center;\">\u81ea\u793e\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u72b6\u6cc1\u304c\u5206\u304b\u308b\u30c8\u30e9\u30a4\u30a2\u30eb\u5229\u7528\u53d7\u4ed8\u4e2d\uff01<br \/><a class=\"q_button bt_blue pill sz_l\" href=\"https:\/\/frauddetection.cacco.co.jp\/various_download\/materials_o-pluxfinance\/?ref_type=media_\" target=\"_blank\" rel=\"noopener\">O-PLUX\u306e\u8cc7\u6599DL\u306f\u3053\u3061\u3089<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"DMARC\u3068\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u3084\u30e1\u30fc\u30eb\u6539\u3056\u3093\u306a\u3069\u306e\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u300d\u306b\u6709\u52b9\u306a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002 \u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u306f\u300cSPF\u300d\u3084\u300cDKIM\u300d\u306a\u3069\u3082\u3042\u308a\u307e\u3059\u304c\u3001DMARC\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3088\u308a\u5f37\u529b\u306a\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u304c\u3067\u304d\u307e\u3059\u3002 \u672c\u8a18\u4e8b\u3067\u306f\u3001 DMARC\u306e\u6982\u8981\u3084\u4ed5\u7d44\u307f DMARC\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8 DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5 DMARC\u306e\u52d5\u4f5c\u78ba\u8a8d\u65b9\u6cd5 \u306a\u3069\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002 \u8ff7\u60d1\u30e1\u30fc\u30eb\u3084\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3092\u5f37\u5316\u3057\u305f\u3044\u65b9\u306f\u3001\u305c\u3072\u6700\u5f8c\u307e\u3067\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002 \u4e0b\u8a18\u8a18\u4e8b\u3067\u306f\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\uff08\u9001\u4fe1\u8005\u3092\u88c5\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u8a50\u6b3a\u624b\u53e3\uff09\u306e\u4e8b\u4f8b\u3084\u898b\u5206\u3051\u65b9\u3001\u5bfe\u51e6\u6cd5\u306a\u3069\u3092\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u95a2\u5fc3\u306e\u3042\u308b\u65b9\u306f\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 &hellip;","protected":false},"author":12,"featured_media":8694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-8609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowhow"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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