{"id":10115,"date":"2022-09-01T17:27:51","date_gmt":"2022-09-01T08:27:51","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=10115"},"modified":"2026-07-02T15:47:57","modified_gmt":"2026-07-02T06:47:57","slug":"dkim","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/mail-delivery\/dkim","title":{"rendered":"DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f\uff5c\u4ed5\u7d44\u307f\u304b\u3089\u8a2d\u5b9a\u65b9\u6cd5\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff01"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/09\/DKIM_banner.png\" alt=\"DKIM\u3068\u306f\uff1f\" width=\"1739\" height=\"904\" class=\"alignnone size-full wp-image-22390\" \/><\/p>\n<p><strong>DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u3084\u6539\u3056\u3093\u3092\u691c\u77e5\u3059\u308b\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002<\/strong>\u53d7\u4fe1\u5074\u306f\u3053\u306e\u7f72\u540d\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u3067\u3001\u305d\u306e\u30e1\u30fc\u30eb\u304c\u6b63\u898f\u306e\u9001\u4fe1\u8005\u304b\u3089\u9001\u3089\u308c\u3001\u914d\u9001\u9014\u4e2d\u3067\u5185\u5bb9\u3092\u66f8\u304d\u63db\u3048\u3089\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>DKIM\u306f\u3001SPF\u30fbDMARC\u3068\u4e26\u3076\u30e1\u30fc\u30eb\u8a8d\u8a3c\u6280\u8853\u306e\u67f1\u306e\u3072\u3068\u3064\u3067\u3059\u3002\u7279\u306b2024\u5e742\u6708\u306eGmail\u30fbYahoo!\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5f37\u5316\u4ee5\u964d\u3001<strong>DKIM\u306e\u8a2d\u5b9a\u306f\u300c\u5fc5\u9808\u300d\u306e\u8981\u4ef6<\/strong>\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u8a2d\u5b9a\u306b\u4e0d\u5099\u304c\u3042\u308c\u3070\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3067\u3042\u3063\u3066\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u6271\u3044\u3055\u308c\u3001\u76f8\u624b\u306b\u5c4a\u304b\u306a\u304f\u306a\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001DKIM\u306e\u4ed5\u7d44\u307f\u3068\u516c\u958b\u9375\u6697\u53f7\u65b9\u5f0f\u306e\u8003\u3048\u65b9\u304b\u3089\u3001\u5177\u4f53\u7684\u306a\u8a2d\u5b9a\u65b9\u6cd5\u30fb\u78ba\u8a8d\u65b9\u6cd5\u3001SPF\u3084DMARC\u3068\u306e\u5f79\u5272\u306e\u9055\u3044\u3001\u305d\u3057\u3066\u5230\u9054\u7387\u3092\u5927\u304d\u304f\u5de6\u53f3\u3059\u308b\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u3068\u300c\u7b2c\u4e09\u8005\u7f72\u540d\u300d\u306e\u9055\u3044\u307e\u3067\u3092\u3001\u56f3\u89e3\u3057\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/01\/bm_banner_big_mailsystem_1200x628.png\" alt=\"blastmail\u306e\u30d0\u30ca\u30fc\" width=\"1200\" height=\"629\" class=\"alignnone wp-image-19829 size-full\" \/><\/a><\/p>\n<h2>DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f<\/h2>\n<p>DKIM\u3068\u306f\u300cDomainKeys Identified Mail\u300d\u306e\u7565\u3067\u3001\u300c\u30c7\u30a3\u30fc\u30ad\u30e0\u300d\u3068\u8aad\u307f\u307e\u3059\u3002\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u304c\u6b63\u5f53\u3067\u3042\u308b\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b<strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853<\/strong>\u306e\u3072\u3068\u3064\u3067\u3059\u3002\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3001\u53d7\u4fe1\u5074\u304c\u305d\u306e\u7f72\u540d\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u3067\u3001\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u3084\u300c\u6539\u3056\u3093\u300d\u3092\u898b\u629c\u304f\u4ed5\u7d44\u307f\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<h2>DKIM\u306f\u306a\u305c\u5fc5\u8981\u306a\u306e\u304b\uff1f<\/h2>\n<p>DKIM\u3092\u8a2d\u5b9a\u3059\u308b\u76ee\u7684\u306f\u3001\u5927\u304d\u304f\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316\u300d\u3068\u300c\u5230\u9054\u7387\u306e\u5411\u4e0a\u300d\u306e2\u3064\u306b\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u306a\u308a\u3059\u307e\u3057\u30fb\u6539\u3056\u3093\u3092\u9632\u6b62\u3067\u304d\u308b<\/h3>\n<p>DKIM\u3092\u5c0e\u5165\u3059\u308b\u3068\u3001\u6539\u3056\u3093\u3084\u306a\u308a\u3059\u307e\u3057\u306e\u75d5\u8de1\u304c\u3042\u308b\u4e0d\u6b63\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u5074\u3067\u691c\u51fa\u3067\u304d\u307e\u3059\u3002\u540c\u6642\u306b\u3001\u81ea\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u306a\u308a\u3059\u307e\u3057\u306b\u60aa\u7528\u3055\u308c\u306b\u304f\u304f\u306a\u308b\u52b9\u679c\u3082\u3042\u308a\u307e\u3059\u3002\u4e07\u304c\u4e00\u3001\u81ea\u793e\u3092\u88c5\u3063\u305f\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u3067\u9867\u5ba2\u306b\u88ab\u5bb3\u304c\u53ca\u3079\u3070\u3001\u4f01\u696d\u306e\u4fe1\u7528\u306f\u5927\u304d\u304f\u640d\u306a\u308f\u308c\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u30ea\u30b9\u30af\u3092\u6291\u3048\u308b\u305f\u3081\u306b\u3001\u591a\u304f\u306e\u4f01\u696d\u304c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3092\u5c0e\u5165\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u304c\u5411\u4e0a\u3059\u308b<\/h3>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u306f\u3001\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u300c\u4fe1\u983c\u3067\u304d\u308b\u9001\u4fe1\u5143\u300d\u3068\u8a55\u4fa1\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3078\u306e\u632f\u308a\u5206\u3051\u3084\u30d6\u30ed\u30c3\u30af\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u4e0b\u304c\u308a\u3001\u76f8\u624b\u306e\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u304f\u5272\u5408\uff08\u5230\u9054\u7387\uff09\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002\u9006\u306b\u3001\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u306a\u3044\u30e1\u30fc\u30eb\u306f\u5e74\u3005\u53b3\u3057\u304f\u6271\u308f\u308c\u308b\u50be\u5411\u306b\u3042\u308a\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3067\u3042\u3063\u3066\u3082\u5c4a\u304d\u306b\u304f\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>2024\u5e74\u306eGmail\u30fbYahoo!\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u300c\u5fc5\u9808\u300d\u306b<\/h3>\n<p>2024\u5e742\u6708\u304b\u3089\u3001Google\uff08Gmail\uff09\u3068Yahoo!\u306f\u9001\u4fe1\u8005\u5411\u3051\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u5927\u5e45\u306b\u5f37\u5316\u3057\u307e\u3057\u305f\u3002Gmail\u5b9b\u306b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306bSPF\u307e\u305f\u306fDKIM\u306b\u3088\u308b\u8a8d\u8a3c\u304c\u6c42\u3081\u3089\u308c\u3001\u3055\u3089\u306b<strong>1\u65e55,000\u901a\u4ee5\u4e0a\u3092\u9001\u308b\u300c\u5927\u91cf\u9001\u4fe1\u8005\u300d\u306b\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u306e3\u3064\u3059\u3079\u3066\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808<\/strong>\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30e1\u30fc\u30eb\u306f\u3001\u6b63\u5f53\u306a\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u3067\u3042\u3063\u3066\u3082\u30d6\u30ed\u30c3\u30af\u3084\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002DKIM\u306e\u8a2d\u5b9a\u306f\u3001\u3082\u306f\u3084\u907f\u3051\u3066\u901a\u308c\u306a\u3044\u5fc5\u9808\u5bfe\u5fdc\u3068\u3044\u3048\u307e\u3059\u3002Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5168\u4f53\u50cf\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/gmail-guideline-202402\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/Gmail_guide.png\" alt=\"\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u306f\u3001\u300cGmail\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u305f\u3044\u306a\u3089\u3001\u9001\u4fe1\u5074\u306f\u3053\u306e\u30eb\u30fc\u30eb\u3092\u5b88\u3063\u3066\u304f\u3060\u3055\u3044\u300d\u3068Google\u304c\u5b9a\u3081\u305f\u8981\u4ef6\u306e\u3053\u3068\u3067\u3059\u3002\u6b63\u5f0f\u540d\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>DKIM\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>DKIM\u306f<strong>\u300c\u516c\u958b\u9375\u6697\u53f7\u65b9\u5f0f\u300d<\/strong>\u3068\u547c\u3070\u308c\u308b\u6280\u8853\u3092\u4f7f\u3063\u3066\u3001\u30e1\u30fc\u30eb\u306e\u6b63\u5f53\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u9375\u304c\u300c\u79d8\u5bc6\u9375\u300d\u3068\u300c\u516c\u958b\u9375\u300d\u306e2\u3064\u30671\u7d44\u306b\u306a\u3063\u3066\u3044\u308b\u70b9\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/09\/DKIM_mechanism_2.png\" alt=\"DKIM\u306e\u4ed5\u7d44\u307f\" width=\"1668\" height=\"879\" class=\"alignnone size-full wp-image-22392\" style=\"border: 1px solid #cccccc;\" \/><\/p>\n<p>\u8a8d\u8a3c\u306e\u6d41\u308c\u3092\u3001\u9806\u756a\u306b\u307f\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u24ea\u516c\u958b\u9375\u3092DNS\u306b\u516c\u958b\u3059\u308b\uff08\u4e8b\u524d\u6e96\u5099\uff09<\/h3>\n<p>\u9001\u4fe1\u5074\u30c9\u30e1\u30a4\u30f3\u306e\u7ba1\u7406\u8005\u306e\u65b9\u3067\u3001\u516c\u958b\u9375\u306e\u60c5\u5831\u3092\u3042\u3089\u304b\u3058\u3081DNS\u306b\u767b\u9332\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<h3>\u2460\u30e1\u30fc\u30eb\u306b\u7f72\u540d\u3092\u4ed8\u4e0e\u3059\u308b<\/h3>\n<p>\u30e1\u30fc\u30eb\u306e\u5185\u5bb9\uff08\u30d8\u30c3\u30c0\u30fc\u3068\u672c\u6587\uff09\u304b\u3089\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u8a08\u7b97\u3057\u3001\u305d\u308c\u3092\u79d8\u5bc6\u9375\u3092\u4f7f\u3063\u3066\u7f72\u540d\u3057\u307e\u3059\u3002\u751f\u6210\u3057\u305f\u7f72\u540d\u306f\u3001\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u306b\u6dfb\u4ed8\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u2461\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b<\/h3>\n<p>\u7f72\u540d\u3092\u6dfb\u3048\u305f\u30e1\u30fc\u30eb\u304c\u3001\u53d7\u4fe1\u5074\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3078\u9001\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3>\u2462\u516c\u958b\u9375\u3092\u53d6\u5f97\u3059\u308b<\/h3>\n<p>\u53d7\u4fe1\u5074\u306f\u3001\u30e1\u30fc\u30eb\u306b\u8a18\u8f09\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u306eDNS\u3078\u554f\u3044\u5408\u308f\u305b\u3001\u5bfe\u306b\u306a\u308b\u516c\u958b\u9375\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n<h3>\u2463\u7f72\u540d\u3092\u691c\u8a3c\u3059\u308b<\/h3>\n<p>\u53d6\u5f97\u3057\u305f\u516c\u958b\u9375\u3067\u7f72\u540d\u3092\u78ba\u8a8d\u3057\u3001\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304b\u3089\u518d\u8a08\u7b97\u3057\u305f\u30cf\u30c3\u30b7\u30e5\u5024\u3068\u7167\u5408\u3057\u307e\u3059\u3002\u4e21\u8005\u304c\u4e00\u81f4\u3059\u308c\u3070 \u300c\u6539\u3056\u3093\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u6b63\u898f\u306e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u9001\u3089\u308c\u305f\u30e1\u30fc\u30eb\u300d\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>DKIM\u306b\u306f\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u3068\u300c\u7b2c\u4e09\u8005\u7f72\u540d\u300d\u304c\u3042\u308b<\/h2>\n<p>\u3053\u3053\u3067\u3001\u5fc5\u305a\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u306e\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u5834\u5408\u3001DKIM\u306e\u7f72\u540d\u306b\u306f\u300c\u3069\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3059\u308b\u304b\u300d\u306b\u3088\u3063\u30662\u3064\u306e\u65b9\u5f0f\u304c\u3042\u308a\u3001\u3069\u3061\u3089\u304b\u3092\u9078\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5916\u90e8\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u5b9f\u969b\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u306e\u306f\u300c\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30b5\u30fc\u30d0\u30fc\u300d\u3067\u3059\u3002\u3053\u306e\u3068\u304d\u3001<strong>\u7f72\u540d\u3092\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u884c\u3046\u304b\u3001\u305d\u308c\u3068\u3082\u81ea\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u884c\u3046\u304b<\/strong>\u3068\u3044\u3046\u9078\u629e\u304c\u751f\u3058\u307e\u3059\u3002\u3053\u308c\u304c\u3001\u6b21\u306e2\u7a2e\u985e\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u7b2c\u4e09\u8005\u7f72\u540d<\/strong>\uff1a\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3059\u308b<\/li>\n<li><strong>\u4f5c\u6210\u8005\u7f72\u540d<\/strong>\uff1a\u81ea\u793e\uff08\uff1d\u9001\u4fe1\u5143From\u3068\u540c\u3058\uff09\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<h3>\u7b2c\u4e09\u8005\u7f72\u540d\u3068\u306f<\/h3>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u3001\u305d\u306e\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u4e8b\u696d\u8005\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3092\u884c\u3046\u65b9\u5f0f\u3067\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304c\u300cA.co.jp\u300d\u3067\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u300cB.co.jp\u300d\u306e\u5834\u5408\u3001<strong>\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u30c9\u30e1\u30a4\u30f3\u300cB.co.jp\u300d\u304c\u7f72\u540d\u306b\u4f7f\u308f\u308c\u307e\u3059<\/strong>\u3002<\/p>\n<h3>\u4f5c\u6210\u8005\u7f72\u540d\u3068\u306f<\/h3>\n<p>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3092\u884c\u3046\u65b9\u5f0f\u3067\u3059\u3002<\/p>\n<p>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304c\u300cA.co.jp\u300d\u306e\u5834\u5408\u3001\u4f7f\u3063\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u30c9\u30e1\u30a4\u30f3\u300cB.co.jp\u300d\u306b\u304b\u304b\u308f\u3089\u305a\u3001<strong>\u300cA.co.jp\u300d\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u7f72\u540d\u306b\u4f7f\u3044\u307e\u3059\u3002<\/strong><\/p>\n<h3>DMARC\u8a2d\u5b9a\u306e\u305f\u3081\u306b\u306f\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u304c\u5fc5\u9808<\/h3>\n<p>\u7b2c\u4e09\u8005\u7f72\u540d\u30fb\u4f5c\u6210\u8005\u7f72\u540d\u306e\u3069\u3061\u3089\u3092\u4f7f\u3063\u3066\u3082\u3001DKIM\u8a8d\u8a3c\u305d\u306e\u3082\u306e\u306f\u3010pass\u3011\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306fDKIM\u8a8d\u8a3c\u3068\u306f\u5225\u306b<strong>\u300cDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u300d\u3068\u3057\u3066\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u3001DKIM\u7f72\u540d\u306b\u4f7f\u7528\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d<\/strong>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u7b2c\u4e09\u8005\u7f72\u540d\u306e\u5834\u5408<\/strong>\uff1aDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u300c<strong>\u4e0d\u4e00\u81f4\u300d<\/strong><\/li>\n<li><strong>\u4f5c\u6210\u8005\u7f72\u540d\u306e\u5834\u5408<\/strong>\uff1aDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u300c<strong>\u4e00\u81f4\u300d<\/strong><\/li>\n<\/ul>\n<\/div>\n<p>DKIM\u3068\u540c\u3058\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u306e\u4e00\u3064\u3067\u3042\u308bDMARC\u306e\u8a2d\u5b9a\u3092\u3059\u308b\u305f\u3081\u306b\u306f\u3001<strong>\u300cSPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3082\u3057\u304f\u306fDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u4e00\u81f4\u3055\u305b\u308b\u3053\u3068\u300d<\/strong>\u3068\u3044\u3046\u6761\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u4ed5\u7d44\u307f\u4e0a\u4e0d\u4e00\u81f4\u3068\u306a\u3063\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u304c\u591a\u3044\u305f\u3081\u3001<strong>DMARC\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u5fc5\u305a\u4f5c\u6210\u8005\u7f72\u540d\u3092\u9078\u629e\u3057\u3066\u3001DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u4e00\u81f4\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/p>\n<p>2024\u5e74\u306b\u5b9a\u3081\u3089\u308c\u305fGmail\u306e\u300c\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u300d\u3067\u306f\u30011\u65e55,000\u901a\u4ee5\u4e0a\u306e\u9001\u4fe1\u8005\u306fDMARC\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808\u3068\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u57fa\u672c\u7684\u306b\u306fDMARC\u306e\u8a2d\u5b9a\u3092\u3059\u308b\u524d\u63d0\u3067\u3001<strong>DKIM\u306f\u4f5c\u6210\u8005\u7f72\u540d\u3092\u8a2d\u5b9a\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046<\/strong>\u3002<\/p>\n<h2>DKIM\u306e\u8a2d\u5b9a\u65b9\u6cd5\uff08\u4f5c\u6210\u8005\u7f72\u540d\uff09<\/h2>\n<p>\u305d\u308c\u3067\u306f\u5b9f\u969b\u306bDKIM\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3053\u3053\u3067\u306f\u3001\u5f0a\u793e\u304c\u63d0\u4f9b\u3059\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3092\u3082\u3068\u306b\u3001\u4f5c\u6210\u8005\u7f72\u540d\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u4f7f\u7528\u3059\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u8868\u793a\u753b\u9762\u306f\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u5927\u307e\u304b\u306a\u6d41\u308c\u3068\u3057\u3066\u306f3\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u9032\u307f\u307e\u3059\u3002<\/p>\n<h3>\u30b9\u30c6\u30c3\u30d7\u2460\uff1a\u9375\u30da\u30a2\u3092\u4f5c\u308b<\/h3>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u7ba1\u7406\u753b\u9762\u3067\u9001\u4fe1\u5143\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u767b\u9332\u3057\u307e\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u5bfe\u8c61\u30a2\u30c9\u30ec\u30b9\u306e\u300cDKIM\u8a2d\u5b9a\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/09\/dkim1-1.jpg\" alt=\"DKIM\u8a2d\u5b9a\u753b\u97621\" width=\"1890\" height=\"232\" class=\"alignnone size-full wp-image-22396\" style=\"border: 1px solid #cccccc;\" \/><\/p>\n<p>\u753b\u9762\u306b\u5f93\u3063\u3066\u3001\u4ee5\u4e0b\u306e\u9805\u76ee\u3092\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u7f72\u540d\u306e\u7a2e\u985e<\/strong>\uff1a\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u3092\u9078\u629e<\/li>\n<li><strong>\u30bb\u30ec\u30af\u30bf<\/strong>\uff1a\u8907\u6570\u306eDKIM\u516c\u958b\u9375\u3092\u533a\u5225\u3059\u308b\u305f\u3081\u306e\u540d\u524d\uff08\u8b58\u5225\u5b50\uff09\u3002\u4efb\u610f\u306e\u6587\u5b57\u5217\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30c9\u30e1\u30a4\u30f3<\/strong>\uff1a\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u8a18\u5165<\/li>\n<li><strong>\u79d8\u5bc6\u9375\u3068\u516c\u958b\u9375<\/strong>\uff1a\u81ea\u52d5\u751f\u6210\u3092\u9078\u629e<\/li>\n<\/ul>\n<\/div>\n<p>\u9375\u30da\u30a2\uff08\u79d8\u5bc6\u9375\u30fb\u516c\u958b\u9375\uff09\u304c\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u81ea\u52d5\u3067\u751f\u6210\u3055\u308c\u3001<strong>\u300c\u516c\u958b\u9375\u306e\u5024\u300d\u304c\u753b\u9762\u306b\u8868\u793a<\/strong>\u3055\u308c\u308c\u3070OK\u3067\u3059\u3002<\/p>\n<h3>\u30b9\u30c6\u30c3\u30d7\u2461\uff1a\u516c\u958b\u9375\u3092DNS\u306b\u516c\u958b\u3059\u308b<\/h3>\n<p>\u300c\u30bb\u30ec\u30af\u30bf\u300d\u3068\u300c\u516c\u958b\u9375\u300d\u3092\u30b3\u30d4\u30fc\u3057\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3078\u4ee5\u4e0b\u306e\u8a18\u8ff0\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u30db\u30b9\u30c8\u540d<\/strong>\uff1a\u3010\u30bb\u30ec\u30af\u30bf\u540d\u3011._domainkey<\/li>\n<li><strong>TYPE<\/strong>\uff1aTXT<\/li>\n<li><strong>VALUE<\/strong>\uff1av=DKIM1; k=rsa; p=\u3010\u516c\u958b\u9375\u306e\u5024\u3011<\/li>\n<\/ul>\n<\/div>\n<h3>\u30b9\u30c6\u30c3\u30d7\u2462\uff1a\u691c\u8a3c\u3059\u308b<\/h3>\n<p>DKIM\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3001\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u65b9\u6cd5\u306f\u4e3b\u306b3\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4>1. \u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u3067\u78ba\u8a8d\u3059\u308b<\/h4>\n<p>\u3082\u3063\u3068\u3082\u624b\u8efd\u306a\u306e\u304c\u3001\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3001\u305d\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u898b\u308b\u65b9\u6cd5\u3067\u3059\u3002Gmail\u306e\u5834\u5408\u3001\u5bfe\u8c61\u30e1\u30fc\u30eb\u3092\u958b\u3044\u3066\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c\u539f\u6587\u3092\u8868\u793a\u300d\u3092\u9078\u3073\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/genbun.png\" alt=\"Gmail\u306e\u300c\u539f\u6587\u3092\u8868\u793a\u300d\" width=\"235\" height=\"463\" class=\"alignnone size-full wp-image-22372\" style=\"border: 1px solid #cccccc;\" \/><\/p>\n<p>\u30b5\u30de\u30ea\u30fc\u90e8\u5206\u306b\u3001DKIM\u300cPASS\u300d\u3068\u8868\u793a\u3055\u308c\u3001\u30c9\u30e1\u30a4\u30f3\u306b\u81ea\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u8a8d\u8a3c\u306b\u6210\u529f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/09\/dkim_pass.png\" alt=\"DKIM\u8a8d\u8a3c\u306e\u6210\u529f\u753b\u9762\" width=\"769\" height=\"259\" class=\"alignnone size-full wp-image-22399\" style=\"border: 1px solid #cccccc;\" \/><\/p>\n<p>\u3088\u308a\u8a73\u7d30\u306b\u306f\u3001\u30bd\u30fc\u30b9\u672c\u6587\u304b\u3089\u300cAuthentication-Results:\u300d\u3068\u66f8\u304b\u308c\u3066\u3044\u308b\u90e8\u5206\u3092\u63a2\u3057\u3001<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>dkim=pass header.d=example.com<\/code><\/pre>\n<\/div>\n<p>\u3068\u66f8\u304b\u308c\u3066\u3044\u308c\u3070\u3001DKIM\u306e\u8a8d\u8a3c\u306b\u6210\u529f\u3057\u3001\u7f72\u540d\u306b\u3069\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4f7f\u308f\u308c\u305f\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>2. \u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3059\u308b<\/h4>\n<p>DNS\u4e0a\u306e\u516c\u958b\u9375\u304c\u6b63\u3057\u304f\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u306f\u3001\u7121\u6599\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u4ee3\u8868\u7684\u306a\u3082\u306e\u306b\u300cDKIMCore\u300d\u3084\u300cMXToolBox\u300d\u304c\u3042\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3068\u30bb\u30ec\u30af\u30bf\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u3001\u516c\u958b\u9375\u304c\u6b63\u3057\u304f\u53d6\u5f97\u3067\u304d\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3067\u304d\u307e\u3059\u3002\u30b3\u30de\u30f3\u30c9\u64cd\u4f5c\u304c\u4e0d\u8981\u306a\u305f\u3081\u3001\u307e\u305a\u306f\u3053\u306e\u65b9\u6cd5\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<h4>3. \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u78ba\u8a8d\u3059\u308b<\/h4>\n<p>\u516c\u958b\u9375\u304cDNS\u306b\u6b63\u3057\u304f\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u304b\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<h5>\u3010Windows\u306e\u5834\u5408\u3011<\/h5>\n<p>\u30b9\u30bf\u30fc\u30c8\u30e1\u30cb\u30e5\u30fc\u3067\u300ccmd\u300d\u3068\u691c\u7d22\u3057\u3066\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u958b\u304d\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002\uff08\u300cselector\u300d\u3068\u300cexample.com\u300d\u306f\u81ea\u793e\u306e\u5024\u306b\u7f6e\u304d\u63db\u3048\uff09\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>nslookup -type=txt selector._domainkey.example.com<\/code><\/pre>\n<\/div>\n<h5>\u3010Mac\u30fbLinux\u306e\u5834\u5408\u3011<\/h5>\n<p>\u300c\u30bf\u30fc\u30df\u30ca\u30eb\u300d\u3092\u958b\u304d\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u3066Enter\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002\uff08\u300cselector\u300d\u3068\u300cexample.com\u300d\u306f\u81ea\u793e\u306e\u5024\u3078\u7f6e\u304d\u63db\u3048\uff09\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>dig txt selector._domainkey.example.com<\/code><\/pre>\n<\/div>\n<p>\u3044\u305a\u308c\u306e\u5834\u5408\u3082\u3001\u6210\u529f\u3057\u3066\u3044\u308c\u3070\u4e0b\u8a18\u306e\u3088\u3046\u306a\u6587\u5b57\u5217\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>v=DKIM1; k=rsa; p=\u3010\u516c\u958b\u9375\u306e\u6587\u5b57\u5217\u3011<\/code><\/pre>\n<\/div>\n<p>\u5404\u30c4\u30fc\u30eb\u306e\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3084\u3001DKIM\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u3068\u304d\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/dkim-check\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/06\/dkim-check.jpg\" alt=\"DKIM\u306e\u78ba\u8a8d\u65b9\u6cd5\u3092\u5fb9\u5e95\u89e3\u8aac\uff01\u521d\u3081\u3066\u3067\u3082\u5206\u304b\u308bDKIM\u30fbSPF\u30fbDMARC\u306e\u4ed5\u7d44\u307f\" width=\"90\" height=\"50\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DKIM\u306e\u78ba\u8a8d\u65b9\u6cd5\u3092\u5fb9\u5e95\u89e3\u8aac\uff01\u521d\u3081\u3066\u3067\u3082\u5206\u304b\u308bDKIM\u30fbSPF\u30fbDMARC\u306e\u4ed5\u7d44\u307f<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001\u73fe\u4ee3\u306e\u30d3\u30b8\u30cd\u30b9\u3084\u500b\u4eba\u5229\u7528\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u306a\u8981\u7d20\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u4e0d\u6b63\u306a\u30e1\u30fc\u30eb\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u304c\u5897\u52a0\u3059\u308b\u4e2d\u3067\u3001\u9001\u4fe1\u8005\u306e\u6b63\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>SPF\u30fbDKIM\u30fbDMARC\u306e\u5f79\u5272\u306e\u9055\u3044<\/h2>\n<p>DKIM\u3092\u7406\u89e3\u3057\u305f\u3068\u3053\u308d\u3067\u3001\u6df7\u540c\u3055\u308c\u3084\u3059\u3044SPF\u30fbDMARC\u3068\u306e\u9055\u3044\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<p>3\u3064\u306f\u3044\u305a\u308c\u3082\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3001\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u5f37\u56fa\u306a\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305a\u306f\u3001\u305d\u308c\u305e\u308c\u304c\u300c\u4f55\u3092\u691c\u8a3c\u3057\u3001\u4f55\u3092\u9632\u3050\u306e\u304b\u300d\u3092\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<figure class=\"wp-block-table\">\n<table style=\"border-collapse: collapse; width: 100%; font-size: 14px;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; background: #f2f2f2; font-weight: bold;\">\u6280\u8853<\/th>\n<th style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; background: #f2f2f2; font-weight: bold;\">\u4f55\u3092\u691c\u8a3c\u3059\u308b\u304b<\/th>\n<th style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; background: #f2f2f2; font-weight: bold;\">\u4e3b\u306b\u9632\u3052\u308b\u3053\u3068<\/th>\n<th style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; background: #f2f2f2; font-weight: bold;\">\u5358\u72ec\u3067\u306e\u5f31\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; background: #fbeaea; font-weight: bold; white-space: nowrap;\">SPF<\/th>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">\u9001\u4fe1\u5143\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08\u8a31\u53ef\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u9001\u4fe1\u304b\uff09<\/td>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">\u7121\u95a2\u4fc2\u306a\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u9001\u4fe1<\/td>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">From\u306b\u8868\u793a\u3055\u308c\u308b\u30a2\u30c9\u30ec\u30b9\u306e\u507d\u88c5\u306f\u9632\u3052\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; background: #fbeaea; font-weight: bold; white-space: nowrap;\">DKIM<\/th>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">\u96fb\u5b50\u7f72\u540d\uff08\u672c\u6587\u30fb\u30d8\u30c3\u30c0\u30fc\u306e\u6539\u3056\u3093\u306e\u6709\u7121\u3068\u3001\u7f72\u540d\u30c9\u30e1\u30a4\u30f3\u306e\u6b63\u5f53\u6027\uff09<\/td>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">\u30e1\u30fc\u30eb\u306e\u6539\u3056\u3093\u30fb\u306a\u308a\u3059\u307e\u3057<\/td>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">\u5358\u72ec\u3067\u306fFrom\u30c9\u30e1\u30a4\u30f3\u3068\u306e\u4e00\u81f4\uff08\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff09\u307e\u3067\u306f\u4fdd\u8a3c\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; background: #fbeaea; font-weight: bold; white-space: nowrap;\">DMARC<\/th>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">SPF\u30fbDKIM\u306e\u7d50\u679c\u3068From\u30c9\u30e1\u30a4\u30f3\u306e\u6574\u5408\u6027<\/td>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">From\u30c9\u30e1\u30a4\u30f3\u306e\u306a\u308a\u3059\u307e\u3057<\/td>\n<td style=\"border: 1px solid #d0d0d0; padding: 8px 10px; text-align: left; vertical-align: top;\">SPF\u304bDKIM\u306e\u6574\u5099\u304c\u524d\u63d0\u3068\u306a\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>SPF\u306f\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u3001DKIM\u306f\u96fb\u5b50\u7f72\u540d\u306b\u3088\u3063\u3066\u672c\u6587\u306e\u6539\u3056\u3093\u3068\u7f72\u540d\u30c9\u30e1\u30a4\u30f3\u306e\u6b63\u5f53\u6027\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p>SPF\u306e\u4ed5\u7d44\u307f\u3084\u66f8\u304d\u65b9\u3092\u3042\u308f\u305b\u3066\u78ba\u8a8d\u3057\u305f\u3044\u65b9\u306f\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b\u304c\u53c2\u8003\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/spf-record\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/05\/SPF_banner.png\" alt=\"SPF\uff08Sender Policy Framework\uff09\u3068\u306f\uff1f\uff5c\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u30fbSPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">SPF\uff08Sender Policy Framework\uff09\u3068\u306f\uff1f\uff5c\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u30fbSPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">SPF\u3068\u306f\u3001\u300c\u3053\u306e\u30e1\u30fc\u30eb\u306f\u6b63\u3057\u3044\u9001\u4fe1\u5143\u304b\u3089\u9001\u3089\u308c\u3066\u3044\u307e\u3059\u300d\u3068\u53d7\u4fe1\u5074\u306b\u8a3c\u660e\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u306e\u3053\u3068\u3067\u3059\u3002\u300cSender Policy Framewo\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<p>\u305d\u3057\u3066DMARC\u306f\u3001SPF\u3068DKIM\u306e\u7d50\u679c\u3092From\u30c9\u30e1\u30a4\u30f3\u3068\u7a81\u304d\u5408\u308f\u305b\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u6271\u3044\uff08\u305d\u306e\u307e\u307e\u901a\u3059\u30fb\u9694\u96e2\u3059\u308b\u30fb\u62d2\u5426\u3059\u308b\uff09\u3092\u9001\u4fe1\u5074\u304c\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002SPF\u3084DKIM\u5358\u72ec\u3067\u306f\u30ab\u30d0\u30fc\u3057\u306b\u304f\u3044\u300cFrom\u30c9\u30e1\u30a4\u30f3\u306e\u306a\u308a\u3059\u307e\u3057\u300d\u3092\u3001DMARC\u304c\u88dc\u5b8c\u3059\u308b\u95a2\u4fc2\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>DMARC\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/dmarc-mail\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/07\/DMARC.png\" alt=\"DMARC\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u30fb\u8a2d\u5b9a\u65b9\u6cd5\u30fbBIMI\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u30102026\u5e74\u6700\u65b0\u3011\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DMARC\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u30fb\u8a2d\u5b9a\u65b9\u6cd5\u30fbBIMI\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u30102026\u5e74\u6700\u65b0\u3011<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u73fe\u5834\u3067\u300cDMARC\u300d\u3068\u3044\u3046\u8a00\u8449\u3092\u76ee\u306b\u3059\u308b\u6a5f\u4f1a\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002SPF\u3084DKIM\u3068\u4e26\u3079\u3066\u8a9e\u3089\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3082\u306e\u306e\u3001\u3053\u306e3\u3064\u304c\u3069\u3046\u9055\u3044\u3001D\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u5148\u306b\u3042\u308b\u300cBIMI\u300d\u3068\u306f<\/h3>\n<p>SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u304c\u6574\u3063\u305f\u3089\u3001\u6b21\u306b\u6ce8\u76ee\u3057\u305f\u3044\u306e\u304c<strong>\u300cBIMI\uff08Brand Indicators for Message Identification\uff09\u300d<\/strong>\u3067\u3059\u3002BIMI\u306f\u3001\u53d7\u4fe1\u30c8\u30ec\u30a4\u4e0a\u306b\u9001\u4fe1\u4f01\u696d\u306e\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u3092\u8868\u793a\u3067\u304d\u308b\u898f\u683c\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3068\u30d6\u30e9\u30f3\u30c9\u8a8d\u77e5\u5411\u4e0a\u3092\u540c\u6642\u306b\u5b9f\u73fe\u3067\u304d\u308b\u6280\u8853\u3068\u3057\u3066\u6ce8\u76ee\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>BIMI\u3092\u5229\u7528\u3059\u308b\u306b\u306f\u3001SPF\u30fbDKIM\u306e\u6574\u5099\u306b\u52a0\u3048\u3066\u3001<strong>DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u300cquarantine\uff08\u9694\u96e2\uff09\u300d\u307e\u305f\u306f\u300creject\uff08\u62d2\u5426\uff09\u300d\u306b\u8a2d\u5b9a<\/strong>\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u524d\u63d0\u3067\u3059\u3002\u3055\u3089\u306b\u3001Gmail\u3067\u30ed\u30b4\u3092\u78ba\u5b9f\u306b\u8868\u793a\u3055\u305b\u308b\u306b\u306fVMC\uff08\u8a8d\u8a3c\u6e08\u307f\u30de\u30fc\u30af\u8a3c\u660e\u66f8\uff09\u306e\u53d6\u5f97\u3082\u4e8b\u5b9f\u4e0a\u5fc5\u9808\u3068\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308aBIMI\u306f\u3001DKIM\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u7740\u5b9f\u306b\u6574\u3048\u305f\u5148\u306b\u3042\u308b\u3001\u767a\u5c55\u7684\u306a\u53d6\u308a\u7d44\u307f\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n<p>BIMI\u306e\u30e1\u30ea\u30c3\u30c8\u304b\u3089\u5c0e\u5165\u30b9\u30c6\u30c3\u30d7\u3001DMARC\u79fb\u884c\u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u3001\u8a2d\u5b9a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u307e\u3067\u3092\u307e\u3068\u3081\u305f\u300cBIMI\u5b8c\u5168\u30ac\u30a4\u30c9\u300d\u3092\u7121\u6599\u3067\u3054\u7528\u610f\u3057\u3066\u3044\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><strong><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi-doc\">&gt;&gt;BIMI\u5b8c\u5168\u30ac\u30a4\u30c9\u3092\u7121\u6599\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b<\/a><\/strong><\/p>\n<h2>DKIM\u306b\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u306e\u304c\u304a\u3059\u3059\u3081<\/h2>\n<p>DKIM\u306e\u8a2d\u5b9a\u306f\u3001\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3067\u884c\u304a\u3046\u3068\u3059\u308b\u3068\u9375\u7ba1\u7406\u3084DNS\u8a2d\u5b9a\u306a\u3069\u5c02\u9580\u7684\u306a\u77e5\u8b58\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u30e1\u30eb\u30de\u30ac\u3084\u304a\u77e5\u3089\u305b\u30e1\u30fc\u30eb\u306a\u3069\u4e00\u6589\u9001\u4fe1\u306e\u696d\u52d9\u304c\u3042\u308b\u5834\u5408\u306f\u3001<strong>DKIM\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b<\/strong>\u306e\u304c\u73fe\u5b9f\u7684\u304b\u3064\u78ba\u5b9f\u306a\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3068\u306f<\/h3>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3068\u306f\u3001\u8907\u6570\u306e\u5b9b\u5148\u3078\u540c\u6642\u306b\u30e1\u30fc\u30eb\u3092\u9001\u3063\u305f\u308a\u3001\u914d\u4fe1\u30ea\u30b9\u30c8\u3092\u7ba1\u7406\u3057\u305f\u308a\u3067\u304d\u308b\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002SPF\u30fbDKIM\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u5bfe\u5fdc\u3057\u305f\u30b7\u30b9\u30c6\u30e0\u3092\u9078\u3079\u3070\u3001\u9762\u5012\u306a\u8a2d\u5b9a\u306e\u591a\u304f\u3092\u30c4\u30fc\u30eb\u5074\u306b\u4efb\u305b\u306a\u304c\u3089\u3001\u9ad8\u3044\u5230\u9054\u7387\u3067\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/h3>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/07\/blastmail-top.jpg\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1200\" height=\"630\" class=\"alignnone wp-image-15955 size-full\" \/><\/a><\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\uff08blastmail\uff09\u306f\u300115\u5e74\u9023\u7d9a\u3067\u5c0e\u5165\u793e\u6570\u30b7\u30a7\u30a2No.1\uff08\u203b\uff09\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\u3001\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u3084\u5927\u91cf\u914d\u4fe1\u306b\u7279\u5316\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u300227,000\u793e\u4ee5\u4e0a\u306e\u5c0e\u5165\u5b9f\u7e3e\u306b\u88cf\u6253\u3061\u3055\u308c\u305f\u9ad8\u3044\u5230\u9054\u7387\u3068\u3001\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u76f4\u611f\u7684\u306b\u4f7f\u3048\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u64cd\u4f5c\u6027\u304c\u652f\u6301\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\u30fbDKIM\u5bfe\u5fdc\uff1a<\/strong>Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u6e96\u62e0\u3057\u305f\u914d\u4fe1\u57fa\u76e4\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3068\u9ad8\u3044\u5230\u9054\u7387\u3092\u5b9f\u73fe\uff08DKIM\u306fStandard\u30d7\u30e9\u30f3\u304b\u3089\u5229\u7528\u53ef\u80fd\uff09<\/li>\n<li><strong>\u52b9\u679c\u6e2c\u5b9a\uff1a<\/strong>\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u78ba\u8a8d\u3067\u304d\u3001\u6b21\u306e\u65bd\u7b56\u306b\u3059\u3050\u6d3b\u304b\u305b\u308b<\/li>\n<li><strong>\u30d5\u30a3\u30eb\u30bf\u914d\u4fe1\uff08\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\uff09\uff1a<\/strong>\u8aad\u8005\u306e\u5c5e\u6027\u3084\u884c\u52d5\u5c65\u6b74\u3067\u30b0\u30eb\u30fc\u30d7\u3092\u4f5c\u6210\u3057\u3001\u6700\u9069\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u914d\u4fe1<\/li>\n<\/ul>\n<\/div>\n<p>\u305d\u306e\u30b7\u30f3\u30d7\u30eb\u3055\u3068\u4f4e\u4fa1\u683c\u304b\u3089\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u521d\u3081\u3066\u5c0e\u5165\u3059\u308b\u4f01\u696d\u306b\u3082\u63a8\u5968\u3067\u304d\u308b\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u307e\u305a\u306f\u64cd\u4f5c\u611f\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\">\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/a><\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/order\/input\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> \u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\u203b\u30df\u30c3\u30afIT\u30ea\u30dd\u30fc\u30c82025\u5e748\u6708\u53f7\u300c\u30af\u30e9\u30a6\u30c9\u578be\u30e1\u30fc\u30eb\u4e00\u6589\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u5e02\u5834\u52d5\u5411\u3068\u4e2d\u671f\u4e88\u6e2c\uff08\u58f2\u4e0a\u9ad8\/\u30a2\u30af\u30c6\u30a3\u30d6\u6cd5\u4eba\u9867\u5ba2\u6570\uff09\u300d\u3088\u308a<\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastengine\u300d<\/h3>\n<p><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/10\/blastengine.jpg\" alt=\"blastengine\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1303\" height=\"590\" class=\"alignnone wp-image-19575 size-full\" \/><\/a><\/p>\n<p>blastengine\uff08\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff09\u306f\u3001\u304a\u5ba2\u69d8\u306e\u30b7\u30b9\u30c6\u30e0\u3068SMTP\u30ea\u30ec\u30fc\u3084API\u3067\u9023\u643a\u3057\u3001\u4e00\u6589\u914d\u4fe1\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3092\u9ad8\u901f\u30fb\u5927\u91cf\u306b\u9001\u308c\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u904b\u7528\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306f\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u5074\u304c\u62c5\u3046\u305f\u3081\u3001\u5e38\u306b\u9ad8\u3044IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u9762\u5012\u306a\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u304b\u3089\u89e3\u653e\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\/DKIM\/DMARC\u5bfe\u5fdc\uff1a<\/strong>\u6700\u65b0\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u6280\u8853\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u56de\u907f<\/li>\n<li><strong>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc\uff1a<\/strong>\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u7d44\u307f\u8fbc\u307f\u304c\u5bb9\u6613\u3067\u3001\u6700\u77ed\u5f53\u65e5\u304b\u3089\u5229\u7528\u958b\u59cb\u3067\u304d\u308b<\/li>\n<li><strong>99%\u4ee5\u4e0a\u306e\u9ad8\u3044\u5230\u9054\u7387\uff1a<\/strong>\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u30fbISP\u3078\u306e\u500b\u5225\u9001\u4fe1\u30ed\u30b8\u30c3\u30af\u3067\u78ba\u5b9f\u306b\u5c4a\u3051\u308b<\/li>\n<li><strong>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc\uff1a<\/strong>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u904b\u7528\u8ca0\u8377\u3092\u5927\u5e45\u306b\u524a\u6e1b<\/li>\n<\/ul>\n<\/div>\n<p>\u81ea\u52d5\u9001\u4fe1\u30e1\u30fc\u30eb\u3084\u30b7\u30b9\u30c6\u30e0\u9023\u643a\u3067\u306e\u78ba\u5b9f\u306a\u914d\u4fe1\u3092\u6c42\u3081\u308b\u4f01\u696d\u306b\u6700\u9069\u3067\u3059\u3002\u521d\u671f\u8cbb\u7528\u7121\u6599\u30fb\u6708\u984d3,000\u5186\u304b\u3089\u3068\u4f4e\u30b3\u30b9\u30c8\u3067\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\">https:\/\/blastengine.jp\/<\/a><\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/app.engn.jp\/be\/order\/request-form\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> blastengine\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">Q\uff1aDKIM\u3068\u306f\u3069\u306e\u3088\u3046\u306a\u6280\u8853\u3067\u3001SPF\u3068\u306f\u4f55\u304c\u9055\u3044\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aDKIM\u306f\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3066\u300c\u6539\u3056\u3093\u300d\u3084\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u3092\u9632\u3050\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002SPF\u304c\u9001\u4fe1\u5143\u306e\u300c\u4f4f\u6240\uff08IP\u30a2\u30c9\u30ec\u30b9\uff09\u300d\u3092\u78ba\u8a8d\u3059\u308b\u306e\u306b\u5bfe\u3057\u3001DKIM\u306f\u300c\u5c01\u5370\uff08\u5370\u9451\uff09\u300d\u3067\u4e2d\u8eab\u306e\u6b63\u5f53\u6027\u307e\u3067\u4fdd\u8a3c\u3057\u307e\u3059\u3002<strong>\u4e21\u8005\u306f\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3088\u308a\u5f37\u56fa\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aDKIM\u306e\u8a2d\u5b9a\u306f\u3069\u306e\u3088\u3046\u306a\u624b\u9806\u3067\u884c\u3044\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u57fa\u672c\u306e\u6d41\u308c\u306f\u3001\u2460\u79d8\u5bc6\u9375\u3068\u516c\u958b\u9375\u306e\u30da\u30a2\u3092\u751f\u6210\u3001\u2461\u516c\u958b\u9375\u3092DNS\u306bTXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u516c\u958b\u3001\u2462\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3001\u306e3\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u9375\u9577\u306f2048\u30d3\u30c3\u30c8\u304c\u63a8\u5968\u3055\u308c\u3066\u304a\u308a\u3001<strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3048\u3070\u8a2d\u5b9a\u306e\u591a\u304f\u3092\u30c4\u30fc\u30eb\u5074\u306b\u4efb\u305b\u3089\u308c\u307e\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aDKIM\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u306b\u306f\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u3067\u300cdkim=pass\u300d\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3001DKIMCore\u3084MXToolBox\u306a\u3069\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u3068\u30bb\u30ec\u30af\u30bf\u3092\u5165\u529b\u3059\u308b\u65b9\u6cd5\u3001dig\u30b3\u30de\u30f3\u30c9\u3067\u76f4\u63a5DNS\u3092\u53c2\u7167\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<strong>\u307e\u305a\u306f\u624b\u8efd\u306a\u30d8\u30c3\u30c0\u30fc\u78ba\u8a8d\u304b\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u304b\u3089\u59cb\u3081\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aDKIM\u306e\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u3068\u300c\u7b2c\u4e09\u8005\u7f72\u540d\u300d\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u7b2c\u4e09\u8005\u7f72\u540d\u306f\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u3001\u4f5c\u6210\u8005\u7f72\u540d\u306f\u81ea\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3059\u308b\u65b9\u5f0f\u3067\u3059\u3002<strong>DMARC\u8a8d\u8a3c\u3092\u6210\u529f\u3055\u305b\u3001\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306e\u52b9\u679c\u3092\u6700\u5927\u5316\u3059\u308b\u306b\u306f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u306e\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aDKIM\u3092\u8a2d\u5b9a\u3057\u306a\u3044\u3068\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304c\u306a\u308a\u3059\u307e\u3057\u306b\u60aa\u7528\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308b\u307b\u304b\u3001Gmail\u306a\u3069\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u6e80\u305f\u305b\u305a\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3067\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3084\u53d7\u4fe1\u62d2\u5426\u3092\u53d7\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<strong>\u7279\u306b1\u65e55,000\u901a\u4ee5\u4e0a\u3092\u9001\u308b\u5834\u5408\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808\u8981\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/strong><\/dd>\n<\/dl><\/div>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>DKIM\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u3084\u6539\u3056\u3093\u3092\u691c\u77e5\u3059\u308b\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002\u79d8\u5bc6\u9375\u3068\u516c\u958b\u9375\u3092\u4f7f\u3063\u3066\u30e1\u30fc\u30eb\u306e\u6b63\u5f53\u6027\u3092\u4fdd\u8a3c\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316\u3060\u3051\u3067\u306a\u304f\u5230\u9054\u7387\u306e\u5411\u4e0a\u306b\u3082\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n<p>\u8a2d\u5b9a\u306f\u300c\u9375\u30da\u30a2\u306e\u751f\u6210\u2192DNS\u3078\u306e\u516c\u958b\u9375\u767b\u9332\u2192\u8a2d\u5b9a\u3092\u78ba\u8a8d\u300d\u3068\u3044\u3046\u6d41\u308c\u3067\u9032\u307f\u3001\u8a2d\u5b9a\u5f8c\u306f\u30d8\u30c3\u30c0\u30fc\u3084\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3067\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3092\u5fc5\u305a\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u3055\u3089\u306b\u5230\u9054\u7387\u3092\u9ad8\u3081\u308b\u306b\u306f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3059\u308b\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u3067\u306e\u904b\u7528\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>2024\u5e742\u6708\u4ee5\u964d\u306eGmail\u30fbYahoo!\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u3088\u308a\u3001DKIM\u306e\u8a2d\u5b9a\u306f\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u306e\u5fc5\u9808\u8981\u4ef6\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3067\u306e\u8a2d\u5b9a\u304c\u96e3\u3057\u3044\u5834\u5408\u306f\u3001DKIM\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u6d3b\u7528\u304c\u3001\u3082\u3063\u3068\u3082\u78ba\u5b9f\u3067\u624b\u9593\u306e\u304b\u304b\u3089\u306a\u3044\u9078\u629e\u80a2\u3067\u3059\u3002\u304a\u5ba2\u69d8\u3084\u53d6\u5f15\u5148\u306e\u4fe1\u983c\u3092\u5b88\u308b\u305f\u3081\u306b\u3082\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u6574\u3048\u3001\u5b89\u5168\u306b\u5c4a\u304f\u30e1\u30fc\u30eb\u74b0\u5883\u3092\u69cb\u7bc9\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DKIM\u3063\u3066\u3069\u3093\u306a\u4ed5\u7d44\u307f\uff1fGmail\u3084Outlook\u306b\u306f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u306e\uff1f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e1\u3064\u3067\u3042\u308bDKIM\u306e\u4ed5\u7d44\u307f\u3084\u5f79\u5272\u306b\u3064\u3044\u3066\u56f3\u89e3\u3057\u307e\u3059<\/p>\n","protected":false},"author":8,"featured_media":22390,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-10115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mail-delivery"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- 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