{"id":2462,"date":"2024-03-22T10:40:56","date_gmt":"2024-03-22T01:40:56","guid":{"rendered":"https:\/\/bmb.jp\/maildeliver\/?p=2462"},"modified":"2024-04-24T17:24:17","modified_gmt":"2024-04-24T08:24:17","slug":"dmarc","status":"publish","type":"post","link":"https:\/\/bmb.jp\/maildeliver\/dmarc","title":{"rendered":"DMARC\u3068\u306f\uff1f\u8a2d\u5b9a\u65b9\u6cd5\u304b\u3089DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u8aad\u307f\u65b9\u307e\u3067\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"628\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/03\/dmarc.jpg\" alt=\"DMARC\u3068\u306f\uff1f\u8a2d\u5b9a\u65b9\u6cd5\u304b\u3089DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u8aad\u307f\u65b9\u307e\u3067\u5fb9\u5e95\u89e3\u8aac \u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" class=\"wp-image-2465\"\/><\/figure>\n\n\n\n<p>DMARC\uff08Domain-based Message Authentication, Reporting, and Conformance\uff09\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e\u4e00\u3064\u3067\u3042\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u6709\u52b9\u306a\u6280\u8853\u3068\u3044\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3057\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u306f\u3001DMARC\u3092\u542b\u3081\u305f\u30e1\u30fc\u30eb\u8a8d\u8a3c\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u4ee5\u5916\u306b\u3082\u30e1\u30fc\u30eb\u914d\u4fe1\u72b6\u6cc1\u306e\u628a\u63e1\u3084\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\u306a\u3069\u3082\u8a2d\u5b9a\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001DMARC\u306b\u95a2\u3059\u308b\u57fa\u790e\u77e5\u8b58\u3084DMARC\u4ee5\u5916\u306e\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3001\u5c0e\u5165\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u306a\u3069\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>DMARC\u3068\u95a2\u9023\u7528\u8a9e<\/strong><\/h2>\n\n\n\n<p>\u307e\u305a\u306f\u3001DMARC\u306e\u6982\u8981\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\u4f75\u305b\u3066\u3001DMARC\u3068\u95a2\u9023\u306e\u3042\u308b\u7528\u8a9e\u306b\u3064\u3044\u3066\u3082\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DMARC\u3068\u306f<\/strong><\/h3>\n\n\n\n<p>DMARC\u3068\u306f\u30012012\u5e742\u6708\u306b\u767a\u8868\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e\u3053\u3068\u3067\u3059\u3002\u65e2\u5b58\u306e\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3042\u308bSPF\uff08Sender Policy Framework\uff09\u3068DKIM\uff08DomainKeys Identified Mail\uff09\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u8003\u3048\u3089\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u73fe\u4ee3\u3067\u5e83\u304f\u904b\u7528\u3055\u308c\u3066\u3044\u308b<strong><span class=\"swl-marker mark_yellow\">\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3042\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u306a\u308a\u3059\u307e\u3057\u3084\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u306e\u78ba\u8a8d\u304c\u53ef\u80fd<\/span><\/strong>\u3067\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u304b\u3089\u8eab\u3092\u5b88\u308c\u308b\u3088\u3046\u306b\u306a\u308b\u305f\u3081\u3001\u5e45\u5e83\u3044\u4f01\u696d\u3067\u5c0e\u5165\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DMARC\u30dd\u30ea\u30b7\u30fc\u3068\u306f<\/strong><\/h3>\n\n\n\n<p>DMARC\u30dd\u30ea\u30b7\u30fc\u3068\u306f\u3001\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304cDMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u6642\u306b\u3069\u306e\u3088\u3046\u306a\u51e6\u7406\u3092\u3059\u308b\u304b\u51e6\u7406\u65b9\u6cd5\u3092\u5b9a\u3081\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5b9a\u3081\u305f\u51e6\u7406\u65b9\u6cd5\uff08\u30dd\u30ea\u30b7\u30fc\uff09\u3092DMARC\u30ec\u30b3\u30fc\u30c9\u3067\u6307\u5b9a\u3057\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u6307\u5b9a\u3067\u304d\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>none<\/td><td>\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3082\u914d\u4fe1\u3092\u7d99\u7d9a\u3059\u308b\uff08\u30e1\u30fc\u30eb\u306f\u76e3\u8996\u3059\u308b\uff09<\/td><\/tr><tr><td>quarantine<\/td><td>\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u3089\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u9694\u96e2\u3059\u308b<\/td><\/tr><tr><td>reject<\/td><td>\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u3089\u524a\u9664\u3059\u308b\uff08\u62d2\u5426\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DMARC\u30ec\u30dd\u30fc\u30c8\u3068\u306f<\/strong><\/h3>\n\n\n\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306f\u30e1\u30fc\u30eb\u8a8d\u8a3c\u7d50\u679c\u3092\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3059\u308b\u6a5f\u80fd\u306e\u3053\u3068\u3067\u3001\u914d\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306e\u5206\u6790\u304c\u53ef\u80fd\u3067\u3059\u3002DMARC\u30ec\u30dd\u30fc\u30c8\u306b\u306f\u3001\u4ee5\u4e0b\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\uff08rua\u30ec\u30dd\u30fc\u30c8\uff09<\/h4>\n\n\n\n<p>\u53d7\u4fe1\u8005\u304c\u53d7\u3051\u53d6\u3063\u305f\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u307e\u3068\u3081\u305f\u30ec\u30dd\u30fc\u30c8\u3067\u3059\u3002\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\u3092\u8aad\u307f\u89e3\u3051\u3070\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u30ec\u30dd\u30fc\u30c8\u3092\u9001\u4fe1\u3057\u305f\u7d44\u7e54<\/li>\n\n\n\n<li>\u53c2\u7167\u3057\u305fDMARC\u30dd\u30ea\u30b7\u30fc<\/li>\n\n\n\n<li>SPF\/DKIM\u306e\u8a8d\u8a3c\u7d50\u679c<\/li>\n\n\n\n<li>\u9001\u4fe1\u6642\u306b\u4f7f\u7528\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9<\/li>\n\n\n\n<li>\u914d\u4fe1\u3057\u305f\u6570<\/li>\n\n\n\n<li>SPF\/DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u8a8d\u8a3c\u7d50\u679c<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u5931\u6557\u30ec\u30dd\u30fc\u30c8\uff08ruf\u30ec\u30dd\u30fc\u30c8\uff09<\/h4>\n\n\n\n<p>SPF\/DKIM\u306e\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u6642\u306b\u9001\u4fe1\u3055\u308c\u308b\u30ec\u30dd\u30fc\u30c8\u3067\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u3044\u3061\u65e9\u304f\u691c\u77e5\u3059\u308b\u305f\u3081\u306b\u8003\u3048\u3089\u308c\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u30ec\u30dd\u30fc\u30c8\u5185\u5bb9\u306b\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u60c5\u5831\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u304b\u3089\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u61f8\u5ff5\u3059\u308b\u58f0\u304c\u4e0a\u304c\u308a\u3001\u5931\u6557\u30ec\u30dd\u30fc\u30c8\u3092\u9001\u4fe1\u3057\u306a\u3044\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3082\u5b58\u5728\u3057\u307e\u3059\u3002\u306a\u304a\u3001\u30ec\u30dd\u30fc\u30c8\u3092\u9001\u4fe1\u3059\u308b\u6761\u4ef6\u306fDMARC\u30ec\u30b3\u30fc\u30c9\u3067\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\u306e\u5834\u5408XML\u5f62\u5f0f\u3001\u5931\u6557\u30ec\u30dd\u30fc\u30c8\u3067\u306fAFRF\u5f62\u5f0f\u3067\u9001\u4fe1\u3055\u308c\u308b\u305f\u3081\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u8aad\u304c\u56f0\u96e3\u306a\u5834\u5408\u3082\u3042\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u3093\u306a\u6642\u306f\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u6790\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DMARC\u30ec\u30b3\u30fc\u30c9\u3068\u306f<\/strong><\/h3>\n\n\n\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u305f\u3081\u3001DMARC\u8a8d\u8a3c\u3092\u5c0e\u5165\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001DNS\u30b5\u30fc\u30d0\u30fc\u306bDMARC\u30dd\u30ea\u30b7\u30fc\u3092\u767b\u9332\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002DNS TXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u516c\u958b\u3059\u308b\u3053\u3068\u3067\u8a8d\u8a3c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DMARC\u306e\u4ed5\u7d44\u307f<\/strong><\/h3>\n\n\n\n<p>\u30d8\u30c3\u30c0\u30fcFrom\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3\u3068SPF\/DKIM\u8a8d\u8a3c\u306b\u6210\u529f\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3057\u3066\u3044\u308c\u3070\u3001DMARC\u8a8d\u8a3c\u3082\u6210\u529f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>SPF\u307e\u305f\u306fDKIM\u306e\u3069\u3061\u3089\u304b\u4e00\u65b9\u3060\u3051\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u3001\u904b\u7528\u3059\u308b\u3053\u3068\u3067\u3082DMARC\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u304c\u3001\u6700\u5927\u9650\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u4e92\u63db\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001SPF\u3068DKIM\u306e\u4e21\u65b9\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3057\u3001\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1360\" height=\"350\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/01\/gmail\u8981\u4ef6\u5f37\u5316_\u30d0\u30ca\u30fc_1360x350-1.png\" alt=\"Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u30d0\u30ca\u30fc\" class=\"wp-image-2265\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>DMARC\u4ee5\u5916\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c<\/strong><\/h2>\n\n\n\n<p>\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306b\u306f\u3001DMARC\u306e\u307b\u304b\u306bSPF\u3068DKIM\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u4ee5\u4e0b\u306b\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>SPF<\/strong><\/h3>\n\n\n\n<p><strong><span class=\"swl-marker mark_yellow\">SPF\u306f\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u304c\u8a50\u79f0\u3055\u308c\u3066\u3044\u305f\u5834\u5408\u3001\u691c\u77e5\u304c\u53ef\u80fd<\/span><\/strong>\u306a\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30e1\u30fc\u30eb\u306e\u3084\u308a\u53d6\u308a\u3067\u306f\u3001\u4e3b\u306bSMTP\uff08Simple Mail Transfer Protocol\uff09\u3068\u3044\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u7c21\u5358\u306b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u8a50\u79f0\u3067\u304d\u308b\u6b20\u70b9\u304c\u3042\u308b\u305f\u3081\u3001\u7c21\u5358\u306b\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u304c\u3067\u304d\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>SPF\u306fSMTP\u3092\u4f7f\u3063\u305f\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u8a50\u79f0\uff08\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\uff09\u3092\u9632\u3050\u305f\u3081\u306e\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/spf-record\" target=\"_blank\" rel=\"noopener\" title=\"\">\u3010\u512a\u3057\u304f\u89e3\u8aac\u3011SPF\u30ec\u30b3\u30fc\u30c9\u3068\u306f\uff1f\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u3050\u4ed5\u7d44\u307f\u3084\u8a2d\u5b9a\u65b9\u6cd5<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DKIM<\/strong><\/h3>\n\n\n\n<p>DKIM\u306f\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u306e\u96fb\u5b50\u7f72\u540d\u3092\u53d7\u4fe1\u5074\u304c\u691c\u8a3c\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3084\u30e1\u30fc\u30eb\u5185\u5bb9\u306e\u6539\u3056\u3093\u3092\u691c\u77e5\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u96fb\u5b50\u7f72\u540d\u306e\u691c\u8a3c\u3067\u4f7f\u7528\u3055\u308c\u308b\u516c\u958b\u9375\u306f\u3001\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3067\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u53d7\u4fe1\u5074\u306f\u30e1\u30fc\u30eb\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u304b\u3089\u30c9\u30e1\u30a4\u30f3\u3092\u7279\u5b9a\u3057\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3078\u554f\u3044\u5408\u308f\u305b\u3092\u884c\u3046\u3053\u3068\u3067\u516c\u958b\u9375\u3092\u53d6\u5f97\u3059\u308b\u306e\u3067\u3059\u3002\u306a\u304a\u3001\u96fb\u5b50\u7f72\u540d\u306f\u9001\u4fe1\u8005\u304c\u81ea\u8eab\u3067\u884c\u3046\u5fc5\u8981\u306f\u306a\u304f\u3001MTA\u3084MSA\u3068\u3044\u3063\u305f\u7b2c\u4e09\u8005\u306b\u8a2d\u5b9a\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/dkim\" target=\"_blank\" rel=\"noopener\" title=\"\">DKIM\u306e\u8a2d\u5b9a\u30fb\u78ba\u8a8d\u65b9\u6cd5\u3092\u89e3\u8aac\uff01Gmail\u3067\u306f\u8a2d\u5b9a\u304c\u5fc5\u9808\u306b\uff01\uff1f<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>DMARC\u306e\u30e1\u30ea\u30c3\u30c8<\/strong><\/h2>\n\n\n\n<p>DMARC\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8a8d\u8a3c\u5931\u6557\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u6307\u5b9a\u3067\u304d\u308b\u307b\u304b\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u306b\u3088\u308a\u8a8d\u8a3c\u7d50\u679c\u304c\u308f\u304b\u308a\u3001\u7b2c\u4e09\u8005\u7f72\u540d\u3092\u62d2\u5426\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3055\u3089\u306b\u3001\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u3092\u5b88\u308a\u3001\u9867\u5ba2\u30b5\u30fc\u30d3\u30b9\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3067\u304d\u308b\u3053\u3068\u3001\u305d\u3057\u3066\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u8a8d\u8a3c\u5931\u6557\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u3092\u6307\u5b9a\u3067\u304d\u308b<\/strong><\/h3>\n\n\n\n<p>DMARC\u306f\u3001\u524d\u8ff0\u306e\u901a\u308a\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092none\u30fbquarantine\u30fbreject\u306e3\u3064\u304b\u3089\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u30dd\u30ea\u30b7\u30fc\u306e\u554f\u984c\u3092\u7279\u5b9a\u3057\u3001\u4fee\u6b63\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u5bfe\u7b56\u3092\u91cd\u8996\u3057\u305f\u3044\u306a\u3089reject\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u3057\u304b\u3057\u3001reject\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u307e\u308c\u306bDMARC\u8a8d\u8a3c\u3067\u8aa4\u5224\u5b9a\u304c\u767a\u751f\u3057\u3001\u554f\u984c\u306e\u306a\u3044\u30e1\u30fc\u30eb\u3067\u3082\u62d2\u5426\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306fnone\u306b\u8a2d\u5b9a\u3057\u3066\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u53d7\u4fe1\u8005\u306b\u4e00\u4efb\u3059\u308b\u306e\u304c\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DMARC\u30ec\u30dd\u30fc\u30c8\u3067\u8a8d\u8a3c\u7d50\u679c\u304c\u308f\u304b\u308b<\/strong><\/h3>\n\n\n\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u3067\u308f\u304b\u308b\u306e\u306f\u3001\u8a8d\u8a3c\u7d50\u679c\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u4ed6\u3067\u308f\u304b\u308b\u3053\u3068\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>DMARC\u8a8d\u8a3c\u306b\u5408\u683c\u3057\u305f\u30e1\u30fc\u30eb\u306e\u5272\u5408<\/li>\n\n\n\n<li>DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u30b5\u30fc\u30d0\u30fc\/\u30b5\u30fc\u30d3\u30b9<\/li>\n\n\n\n<li>DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u3069\u3046\u3084\u3063\u3066\u51e6\u7406\u3057\u305f\u304b<\/li>\n<\/ul>\n\n\n\n<p>\u4eee\u306bDMARC\u30dd\u30ea\u30b7\u30fc\u3092none\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u3066\u3082\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3068\u30a8\u30e9\u30fc\u60c5\u5831\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3067\u3042\u308b\u5272\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u73fe\u5728\u4f7f\u7528\u3057\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3\u306e\u4fe1\u983c\u6027\u304c\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u7b2c\u4e09\u8005\u7f72\u540d\u3092\u62d2\u5426\u3067\u304d\u308b<\/strong><\/h3>\n\n\n\n<p>\u7b2c\u4e09\u8005\u7f72\u540d\u3092\u62d2\u5426\u3067\u304d\u308b\u306e\u3082DMARC\u306e\u30e1\u30ea\u30c3\u30c8\u3068\u3044\u3048\u308b\u3067\u3057\u3087\u3046\u3002\u5916\u90e8\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3057\u3088\u3046\u3068\u3057\u3066\u3082\u3001Return-Path\u304c\u30b5\u30fc\u30d3\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306b\u5931\u6557\u3057\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u30d8\u30c3\u30c0\u30fcFrom\u306e\u30c9\u30e1\u30a4\u30f3\u3068Return-Path\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3057\u306a\u3044\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u306a\u304a\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\u30d8\u30c3\u30c0\u30fcFrom\u30c9\u30e1\u30a4\u30f3\u3068SPF\/DKIM\u3067\u8a8d\u8a3c\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3059\u308b\u304b\u7167\u5408\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001SPF\u3067\u4e00\u81f4\u3059\u308c\u3070SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3001DKIM\u3067\u4e00\u81f4\u3059\u308c\u3070DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u3044\u3046\u610f\u5473\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048SPF\/DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u3069\u3061\u3089\u304b\u304c\u5408\u683c\u3057\u3066\u3044\u305f\u3068\u3057\u3066\u3082\u3001\u30d8\u30c3\u30c0\u30fcFrom\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u4e00\u81f4\u3057\u306a\u3044\u3053\u3068\u304c\u539f\u56e0\u3067\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306b\u5931\u6557\u3059\u308b\u3068\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u5224\u5b9a\u306b\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u3092\u5b88\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/strong><\/h3>\n\n\n\n<p>DMARC\u3092\u5c0e\u5165\u3059\u308b\u3068\u81ea\u793e\u306e\u5f93\u696d\u54e1\u3084\u9867\u5ba2\u3001\u53d6\u5f15\u5148\u4f01\u696d\u3092\u72d9\u3063\u305f\u4e0d\u6b63\u306a\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306a\u3069\u3092\u9632\u6b62\u3067\u304d\u308b\u305f\u3081\u3001DMARC\u306e\u5c0e\u5165\u306f\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u3092\u5b88\u308b\u3053\u3068\u306b\u3082\u3064\u306a\u304c\u308b\u306e\u3067\u3059\u3002\u307e\u305f\u3001\u73fe\u5728\u4f7f\u7528\u3057\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3\u3092\u542b\u3080\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5b89\u5168\u6027\u3082\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u9867\u5ba2\u30b5\u30fc\u30d3\u30b9\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3067\u304d\u308b<\/strong><\/h3>\n\n\n\n<p>\u8a50\u6b3a\u306b\u3088\u308b\u88ab\u5bb3\u3092\u9632\u6b62\u3067\u304d\u308b\u3053\u3068\u306f\u3001\u9867\u5ba2\u30b5\u30fc\u30d3\u30b9\u30b3\u30b9\u30c8\u306e\u524a\u6e1b\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u9867\u5ba2\u304c\u88ab\u5bb3\u306b\u906d\u3046\u30b1\u30fc\u30b9\u304c\u6e1b\u308b\u3053\u3068\u3067\u3001\u9867\u5ba2\u304b\u3089\u306e\u82e6\u60c5\u3084\u76f8\u8ac7\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u5411\u4e0a\u3067\u304d\u308b<\/strong><\/h3>\n\n\n\n<p>DMARC\u306f\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u3092\u9632\u6b62\u3059\u308b\u305f\u3081\u3001\u5065\u5168\u306b\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7d50\u679c\u3068\u3057\u3066\u3001\u30e1\u30fc\u30eb\u5230\u9054\u7387\u306e\u5411\u4e0a\u3060\u3051\u3067\u306a\u304f\u3001\u9867\u5ba2\u306e\u30a8\u30f3\u30b2\u30fc\u30b8\u30e1\u30f3\u30c8\u3082\u5411\u4e0a\u3059\u308b\u898b\u8fbc\u307f\u304c\u3042\u308b\u305f\u3081\u3001\u4f1a\u793e\u3068\u3057\u3066\u5065\u5168\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u74b0\u5883\u304c\u6574\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>DMARC\u30fbDMARC\u30ec\u30dd\u30fc\u30c8\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/strong><\/h2>\n\n\n\n<p>DMARC\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3001\u307e\u305aDMARC\u30dd\u30ea\u30b7\u30fc\u30ec\u30b3\u30fc\u30c9\u3092\u81ea\u793e\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u767b\u9332\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>DNS\u30b5\u30fc\u30d0\u30fc\u306eTXT\u30ec\u30b3\u30fc\u30c9\u306bDMARC\u30dd\u30ea\u30b7\u30fc\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u306e\u8a2d\u5b9a\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>_dmarc.blastmail.co.jp.\u3000\u3000IN TXT\u3000 \u201cv=DMARC1; p=none; rua=mailto:report@blastmail.co.jp; ruf=mailto:ng_report@blastmail.co.jp \u201c<\/code><\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306e\u8a2d\u5b9a\u4f8b\u306e\u3088\u3046\u306b1\u884c\u306e\u30c6\u30ad\u30b9\u30c8\u3067\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u30bf\u30b0\uff08v\/p\/rua\u306a\u3069\uff09\u3068\u5024\u3092=\u3067\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u305d\u308c\u305e\u308c\u306e\u9805\u76ee\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u5404\u9805\u76ee\u306f\u30bb\u30df\u30b3\u30ed\u30f3\u3067\u533a\u5207\u3063\u3066\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u8aad\u307f\u65b9<\/strong><\/h2>\n\n\n\n<p>\u524d\u8ff0\u306e\u901a\u308a\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u306f\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\u3068\u5931\u6557\u30ec\u30dd\u30fc\u30c8\u304c\u3042\u308a\u3001\u7279\u306b\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\u306fXML\u5f62\u5f0f\u3067\u914d\u4fe1\u3055\u308c\u308b\u305f\u3081\u53ef\u8aad\u6027\u306b\u6b20\u3051\u307e\u3059\u3002\u52b9\u7387\u7684\u306a\u8aad\u307f\u65b9\u306b\u3064\u3044\u3066\u306f\u5f8c\u8ff0\u3057\u307e\u3059\u306e\u3067\u3001\u307e\u305a\u306f\u3069\u3046\u3044\u3063\u305f\u8981\u7d20\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u304b\u77e5\u3063\u3066\u304a\u304f\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\u306e\u5185\u5bb9\u306f&lt;report_metadata&gt;\u3001&lt;policy_published&gt;\u3001&lt;record&gt;\u306e3\u3064\u306b\u5206\u304b\u308c\u3066\u304a\u308a\u3001\u3053\u3053\u304b\u3089\u306f\u7bc4\u56f2\u3054\u3068\u306e\u8aad\u307f\u65b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&lt;report_metadata&gt;<\/h3>\n\n\n\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306e&lt;report_metadata&gt;\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001\u30ec\u30dd\u30fc\u30c8\u81ea\u4f53\u306e\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u30ec\u30dd\u30fc\u30c8\u304c\u8ab0\u306b\u3088\u3063\u3066\u4f5c\u6210\u3055\u308c\u305f\u304b\u3001\u3069\u306e\u671f\u9593\u306b\u308f\u305f\u308b\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3001\u305d\u3057\u3066\u30ec\u30dd\u30fc\u30c8\u306eID\u306a\u3069\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u542b\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u6790\u3092\u59cb\u3081\u308b\u969b\u306e\u51fa\u767a\u70b9\u3068\u306a\u308a\u3001\u3069\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u30ec\u30dd\u30fc\u30c8\u3092\u9001\u4fe1\u3057\u305f\u304b\u3001\u3069\u306e\u671f\u9593\u306e\u30c7\u30fc\u30bf\u304c\u5206\u6790\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"-list-under-dashed has-swl-pale-02-background-color has-background wp-block-list\">\n<li>org_name<br>\u30ec\u30dd\u30fc\u30c8\u3092\u751f\u6210\u3057\u305f\u7d44\u7e54\u306e\u540d\u524d\u3067\u3059\u3002\u3053\u308c\u306f\u901a\u5e38\u3001\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\uff08ISP\uff09\u306e\u540d\u524d\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>email<br>\u30ec\u30dd\u30fc\u30c8\u306b\u95a2\u3059\u308b\u554f\u3044\u5408\u308f\u305b\u3092\u884c\u3046\u305f\u3081\u306e\u9023\u7d61\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u4f55\u304b\u7591\u554f\u304c\u3042\u308b\u5834\u5408\u306b\u3001\u3053\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>extra_contact_info<br>\u9023\u7d61\u5148\u306b\u95a2\u3059\u308b\u8ffd\u52a0\u60c5\u5831\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306eURL\u3084\u96fb\u8a71\u756a\u53f7\u304c\u542b\u307e\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>report_id<br>\u3053\u306e\u30ec\u30dd\u30fc\u30c8\u306e\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3067\u3059\u3002\u540c\u3058\u9001\u4fe1\u5143\u304b\u3089\u8907\u6570\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308b\u5834\u5408\u3001\u3053\u306eID\u3092\u4f7f\u3063\u3066\u7279\u5b9a\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u533a\u5225\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>date_range<br>\u3053\u306e\u30ec\u30dd\u30fc\u30c8\u304c\u30ab\u30d0\u30fc\u3059\u308b\u671f\u9593\u3067\u3059\u3002\u958b\u59cb\u65e5\u6642\u3068\u7d42\u4e86\u65e5\u6642\u304c\u542b\u307e\u308c\u3001\u3053\u308c\u306b\u3088\u308a\u30ec\u30dd\u30fc\u30c8\u306e\u30c7\u30fc\u30bf\u304c\u3069\u306e\u671f\u9593\u306b\u95a2\u3059\u308b\u3082\u306e\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u3001\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group is-style-dent_box\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>&lt;report_metadata&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;org_name&gt;ExampleISP&lt;\/org_name&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;email&gt;dmarc@exampleisp.com&lt;\/email&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;extra_contact_info&gt;http:\/\/exampleisp.com\/dmarc&lt;\/extra_contact_info&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;report_id&gt;123456789&lt;\/report_id&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;date_range&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;begin&gt;1609459200&lt;\/begin&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;end&gt;1609545599&lt;\/end&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;\/date_range&gt;<\/p>\n\n\n\n<p>&lt;\/report_metadata&gt;<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">&lt;policy_published&gt;<\/h3>\n\n\n\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306e&lt;policy_published&gt;\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001\u30ec\u30dd\u30fc\u30c8\u306e\u5bfe\u8c61\u3068\u306a\u308b\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u8a73\u7d30\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001\u3069\u306e\u3088\u3046\u306aDMARC\u30dd\u30ea\u30b7\u30fc\u304c\u305d\u306e\u671f\u9593\u306b\u9069\u7528\u3055\u308c\u3066\u3044\u305f\u304b\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"-list-under-dashed has-swl-pale-02-background-color has-background wp-block-list\">\n<li>domain<br>\u30ec\u30dd\u30fc\u30c8\u306e\u5bfe\u8c61\u3068\u306a\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u3067\u3059\u3002\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3057\u3066DMARC\u30dd\u30ea\u30b7\u30fc\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li>adkim<br>DKIM\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u3067\u3059\u3002&#8221;r&#8221;\u306f\u30ea\u30e9\u30c3\u30af\u30b9\u30e2\u30fc\u30c9\uff08relaxed mode\uff09\u3001&#8221;s&#8221;\u306f\u53b3\u683c\u30e2\u30fc\u30c9\uff08strict mode\uff09\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>aspf<br>SPF\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u3067\u3059\u3002&#8221;r&#8221;\u306f\u30ea\u30e9\u30c3\u30af\u30b9\u30e2\u30fc\u30c9\u3001&#8221;s&#8221;\u306f\u53b3\u683c\u30e2\u30fc\u30c9\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>p<br>\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30dd\u30ea\u30b7\u30fc\u3067\u3059\u3002&#8221;none&#8221;\u3001&#8221;quarantine&#8221;\u3001&#8221;reject&#8221;\u306e\u3044\u305a\u308c\u304b\u3067\u3059\u3002<\/li>\n\n\n\n<li>sp<br>\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30dd\u30ea\u30b7\u30fc\u3067\u3059\u3002\u30e1\u30a4\u30f3\u30c9\u30e1\u30a4\u30f3\u3068\u7570\u306a\u308b\u30dd\u30ea\u30b7\u30fc\u3092\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u9069\u7528\u3057\u305f\u3044\u5834\u5408\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>pct<br>\u30dd\u30ea\u30b7\u30fc\u304c\u9069\u7528\u3055\u308c\u308b\u30e1\u30fc\u30eb\u306e\u5272\u5408\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001&#8221;100&#8243;\u306f\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u306b\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u3001\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group is-style-dent_box\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>&lt;policy_published&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;domain&gt;example.com&lt;\/domain&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;adkim&gt;r&lt;\/adkim&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;aspf&gt;r&lt;\/aspf&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;p&gt;quarantine&lt;\/p&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;sp&gt;reject&lt;\/sp&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;pct&gt;100&lt;\/pct&gt;<\/p>\n\n\n\n<p>&lt;\/policy_published&gt;<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">&lt;record&gt;<\/h3>\n\n\n\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306e&lt;record&gt;\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001\u500b\u3005\u306e\u30e1\u30fc\u30eb\u30a4\u30d9\u30f3\u30c8\u306e\u8a73\u7d30\u3092\u5831\u544a\u3057\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5177\u4f53\u7684\u306a\u30e1\u30fc\u30eb\u30e1\u30c3\u30bb\u30fc\u30b8\u304cDMARC\u30dd\u30ea\u30b7\u30fc\u306b\u3069\u306e\u3088\u3046\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"-list-under-dashed has-swl-pale-02-background-color has-background wp-block-list\">\n<li>source_ip<br>\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002<\/li>\n\n\n\n<li>count:<br>\u306eIP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb\u306e\u4ef6\u6570\u3067\u3059\u3002<\/li>\n\n\n\n<li>policy_evaluated<br>\u30e1\u30fc\u30eb\u304cDMARC\u30dd\u30ea\u30b7\u30fc\u306b\u57fa\u3065\u3044\u3066\u3069\u306e\u3088\u3046\u306b\u8a55\u4fa1\u3055\u308c\u305f\u304b\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>disposition<br>\u30e1\u30fc\u30eb\u306b\u9069\u7528\u3055\u308c\u305f\u6700\u7d42\u7684\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u3067\u3059\u3002&#8221;none&#8221;\u3001&#8221;quarantine&#8221;\u3001&#8221;reject&#8221;\u306e\u3044\u305a\u308c\u304b\u3067\u3059\u3002<\/li>\n\n\n\n<li>dkim<br>DKIM\u8a8d\u8a3c\u306e\u7d50\u679c\u3067\u3059\u3002&#8221;pass&#8221;\u3001&#8221;fail&#8221;\u306e\u3044\u305a\u308c\u304b\u3067\u3059\u3002<\/li>\n\n\n\n<li>spf<br>SPF\u8a8d\u8a3c\u306e\u7d50\u679c\u3067\u3059\u3002&#8221;pass&#8221;\u3001&#8221;fail&#8221;\u306e\u3044\u305a\u308c\u304b\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u3001\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u4e00\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group is-style-dent_box\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>&lt;record&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;row&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;source_ip&gt;192.0.2.1&lt;\/source_ip&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;count&gt;1&lt;\/count&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;policy_evaluated&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;disposition&gt;none&lt;\/disposition&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;dkim&gt;pass&lt;\/dkim&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;spf&gt;fail&lt;\/spf&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;\/policy_evaluated&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;\/row&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&lt;identifiers&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;header_from&gt;example.com&lt;\/header_from<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u6790\u30c4\u30fc\u30eb<\/strong><\/h2>\n\n\n\n<p>\u4e0a\u8a18\u898b\u51fa\u3057\u3067\u7d39\u4ecb\u3057\u305f\u65b9\u6cd5\u3092\u4f7f\u3063\u3066\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\u3092\u8aad\u307f\u89e3\u304f\u65b9\u6cd5\u3082\u6709\u52b9\u3067\u3059\u304c\u3001\u6bce\u65e5\u5b9a\u671f\u7684\u306b\u30ec\u30dd\u30fc\u30c8\u304c\u914d\u4fe1\u3055\u308c\u308b\u305f\u3081\u3001\u81ea\u529b\u3067\u306e\u89e3\u6790\u304c\u56f0\u96e3\u306a\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5927\u91cf\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u81ea\u529b\u3067\u89e3\u6790\u3059\u308b\u306e\u306f\u73fe\u5b9f\u7684\u3068\u306f\u3044\u3048\u305a\u3001\u5927\u91cf\u306e\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u6790\u306b\u6642\u9593\u3092\u304b\u3051\u3066\u3044\u3066\u306fDMARC\u672c\u6765\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u751f\u304b\u305b\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u304a\u3059\u3059\u3081\u3057\u305f\u3044\u306e\u304c\u3001<a href=\"https:\/\/mxtoolbox.com\/DmarcReportAnalyzer.aspx\">Dmarc Report Analyzer<\/a>\u306e\u3088\u3046\u306aDMARC\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u6790\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e1\u30fc\u30eb\u914d\u4fe1\u306fDMARC\u304c\u8a2d\u5b9a\u3067\u304d\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b<\/h2>\n\n\n\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u6642\u306bSPF\u3084DKIM\u3001DMARC\u304c\u8a2d\u5b9a\u3067\u304d\u308b\u30b7\u30b9\u30c6\u30e0\u306e\u5229\u7528\u306f\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u304b\u3089\u53d7\u4fe1\u8005\u3092\u4fdd\u8b77\u3057\u3001\u9001\u4fe1\u5143\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u81ea\u793e\u3067\u306e\u5bfe\u5fdc\u306f\u96e3\u3057\u3044\u9818\u57df\u3067\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u5c02\u9580\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b\u306e\u304c\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u306b\u554f\u984c\u304c\u7d9a\u3044\u3066\u3057\u307e\u3046\u3068\u3001\u30d3\u30b8\u30cd\u30b9\u306b\u3068\u3063\u3066\u81f4\u547d\u7684\u306a\u72b6\u6cc1\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u6708\u984d\u6599\u91d1\u304c\u5b89\u304f\u3001\u5b9f\u7e3e\u306e\u3042\u308b\u4fe1\u983c\u3067\u304d\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30fc\u30eb\u306e\u5229\u7528\u30b7\u30fc\u30f3\u306f\u5927\u304d\u304f3\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"has-background wp-block-list\" style=\"background-color:#e8f4ff\">\n<li>\u4f1a\u54e1\u767b\u9332\u6642\u3084\u6c7a\u6e08\u60c5\u5831\u306e\u901a\u77e5\u306a\u3069\u306b\u4f7f\u7528\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u30e1\u30fc\u30eb<\/li>\n\n\n\n<li>\u793e\u5185\u306eSMTP\u30b5\u30fc\u30d0\u306e\u4ee3\u66ff\u3068\u3057\u3066\u5229\u7528\u3059\u308bSMTP\u30e1\u30fc\u30eb<\/li>\n\n\n\n<li>\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u306a\u3069\u306e\u4e00\u6589\u9001\u4fe1<\/li>\n<\/ol>\n\n\n\n<p>1\u3064\u76ee\u30682\u3064\u76ee\u306e\u5834\u5408\u3001SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u306e\u300c\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3(blastengine)\u300d\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u30023\u3064\u76ee\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u6700\u9069\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u305e\u308c\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u3001\u4ee5\u4e0b\u3067\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u300c\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3(blastengine)\u300d\u306e\u6d3b\u7528<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/Screenshot-7.png\" alt=\"blastengine\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" class=\"wp-image-13917\"\/><\/figure>\n<\/div>\n\n\n<p><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3<\/a>\u306f\u3001SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u7c21\u5358\u306b\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u3092\u9ad8\u901f\u914d\u4fe1\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u5fc5\u8981\u3068\u305b\u305a\u3001API\u7d4c\u7531\u3067\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u4ed5\u7d44\u307f\u3082\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u306f\u3001<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u30b5\u30fc\u30d0\u30fc\u306e\u904b\u7528\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u884c\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u5e38\u306b\u9ad8\u3044IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3001\u5b89\u5168\u306b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/mark><\/strong>\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8ab2\u984c\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u306e\u5229\u7528\u3092\u691c\u8a0e\u3057\u3066\u307f\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u81ea\u793e\u306eIP\u30a2\u30c9\u30ec\u30b9\u3084\u30c9\u30e1\u30a4\u30f3\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u3066\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u5834\u5408<\/li>\n\n\n\n<li>\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u305a\u3001\u5bfe\u5fdc\u65b9\u6cd5\u304c\u308f\u304b\u3089\u306a\u3044\u5834\u5408<\/li>\n\n\n\n<li>\u81ea\u793e\u3067\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u7ba1\u7406\u30fb\u904b\u7528\u3057\u305f\u304f\u306a\u3044\u5834\u5408<\/li>\n<\/ul>\n\n\n\n<p>\u307e\u305f\u3001\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u306f\u5404\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3084\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u6700\u9069\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u5927\u898f\u6a21\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7d4c\u7531\u3057\u3066\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u65e5\u672c\u56fd\u5185\u3067\u306e\u5230\u9054\u7387\u3092\u5727\u5012\u7684\u306b\u9ad8\u3081\u3066\u3044\u307e\u3059\u3002SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u3082\u3082\u3061\u308d\u3093\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5229\u7528\u6599\u91d1\u306f<strong>\u6708\u984d3,000\u5186\u304b\u3089<\/strong>\u3068\u30b3\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3082\u512a\u308c\u3066\u304a\u308a\u3001\u30e1\u30fc\u30eb\u3060\u3051\u3067\u306a\u304f\u3001\u65e5\u672c\u8a9e\u3067\u306e\u96fb\u8a71\u30b5\u30dd\u30fc\u30c8\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5165\u529b\u306e\u307f\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u304c\u53ef\u80fd\u3067\u3059\u306e\u3067\u3001\u307e\u305a\u306f\u6c17\u8efd\u306b\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-align-center wp-element-button\" href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u3092\u7121\u6599\u3067\u8a66\u3057\u3066\u307f\u308b &gt;<\/a><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d\u306e\u6d3b\u7528<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2023\/09\/blastmail-top.png\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" class=\"wp-image-1943\"\/><\/figure>\n\n\n\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb<\/a>\u306f\u300115\u5e74\u9023\u7d9a\u3067\u9867\u5ba2\u5c0e\u5165\u30b7\u30a7\u30a21\u4f4d\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u3068\u306f\u7570\u306a\u308a\u3001<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u30e1\u30eb\u30de\u30ac\u306a\u3069\u306e\u30e1\u30fc\u30eb\u4e00\u6589\u9001\u4fe1<\/mark><\/strong>\u306b\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u7279\u5fb4\u306f\u3001\u4f7f\u3044\u3084\u3059\u3055\u3068\u30b3\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u9ad8\u3055\u3067\u3059\u3002\u3055\u307e\u3056\u307e\u306a\u696d\u7a2e\u3084\u5b98\u516c\u5e81\u3067\u3082\u5229\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u5b9a\u756a\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3068\u3057\u3066\u5e83\u304f\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>SPF\u30fbDKIM\u30fbDMARC\u306a\u3069\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u6a5f\u80fd\u306f\u3082\u3061\u308d\u3093\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\u3084\u52b9\u679c\u6e2c\u5b9a\u3001HTML\u30e1\u30fc\u30eb\u30a8\u30c7\u30a3\u30bf\u306a\u3069\u3001\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u304c\u3059\u3079\u3066\u63c3\u3063\u3066\u3044\u307e\u3059\u3002\u6700\u3082\u5b89\u3044\u30d7\u30e9\u30f3\u3067\u3082\u3001\u6708\u984d4,000\u5186\u4ee5\u4e0b\u3067\u5c0e\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b7\u30f3\u30d7\u30eb\u3067\u5b89\u4fa1\u306a\u305f\u3081\u3001\u521d\u3081\u3066\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3057\u3066\u307f\u305f\u3044\u65b9\u306b\u3082\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3082\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u307e\u305a\u306f\u8a66\u3057\u3066\u307f\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u7121\u6599\u3067\u8a66\u3057\u3066\u307f\u308b &gt;<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u307e\u3068\u3081<\/strong><\/h2>\n\n\n\n<p>DMARC\u3092\u5c0e\u5165\u3059\u308c\u3070\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u306e\u6307\u5b9a\u3084\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u306e\u4fdd\u8b77\u3082\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e00\u65b9\u3001DMARC\u3092\u5c0e\u5165\u3059\u308b\u3068\u6bce\u65e5\u5b9a\u671f\u7684\u306bDMARC\u30ec\u30dd\u30fc\u30c8\uff08\u7279\u306b\u96c6\u7d04\u30ec\u30dd\u30fc\u30c8\uff09\u304c\u914d\u4fe1\u3055\u308c\u307e\u3059\u304c\u3001\u81ea\u529b\u3067\u306e\u89e3\u6790\u306f\u56f0\u96e3\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u89e3\u6790\u306b\u6642\u9593\u3092\u304b\u3051\u3001DMARC\u672c\u6765\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u751f\u304b\u305b\u306a\u3044\u3088\u3046\u3067\u306f\u672c\u672b\u8ee2\u5012\u3068\u306a\u308b\u305f\u3081\u3001\u81ea\u529b\u3067\u306e\u89e3\u6790\u304c\u56f0\u96e3\u306a\u5834\u5408\u306fDMARC\u30ec\u30dd\u30fc\u30c8\u306e\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u5c0e\u5165\u3092\u691c\u8a0e\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1360\" height=\"350\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/01\/gmail\u8981\u4ef6\u5f37\u5316_\u30d0\u30ca\u30fc_1360x350-1.png\" alt=\"Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u30d0\u30ca\u30fc\" class=\"wp-image-2265\"\/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>DMARC\uff08Domain-based Message Authentication, Reporting, and Conformance\uff09\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e\u4e00\u3064\u3067\u3042\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u6709\u52b9\u306a\u6280\u8853\u3068\u3044\u308f\u308c\u3066\u3044\u307e\u3059 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2465,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[17],"tags":[],"class_list":["post-2462","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-17"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/posts\/2462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/comments?post=2462"}],"version-history":[{"count":6,"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/posts\/2462\/revisions"}],"predecessor-version":[{"id":2537,"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/posts\/2462\/revisions\/2537"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/media\/2465"}],"wp:attachment":[{"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/media?parent=2462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/categories?post=2462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bmb.jp\/maildeliver\/wp-json\/wp\/v2\/tags?post=2462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}