{"id":13799,"date":"2023-11-17T18:25:25","date_gmt":"2023-11-17T09:25:25","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=13799"},"modified":"2025-12-12T17:07:07","modified_gmt":"2025-12-12T08:07:07","slug":"gmail-guideline-202402","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/spam\/gmail-guideline-202402","title":{"rendered":"\u30102025\u5e7411\u6708\u66f4\u65b0\u30112024\u5e742\u6708\u3088\u308aGmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5909\u66f4\uff011\u65e55,000\u4ef6\u4ee5\u4e0a\u306e\u914d\u4fe1\u306f\u5bfe\u5fdc\u5fc5\u9808\uff01"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-14245\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/DKIM-2.png\" alt=\"\" width=\"1200\" height=\"628\" \/><\/p>\n<p>2023\u5e7410\u6708\u3001Gmail\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p><strong>Google\u516c\u5f0f\uff1a<a href=\"https:\/\/support.google.com\/mail\/answer\/81126\" target=\"_blank\" rel=\"noopener\">\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a><\/strong><\/p>\n<p>\u3053\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306f2024\u5e742\u6708\u4ee5\u964d\u3001Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306b<strong>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fb\u3069\u3061\u3089\u304b\u306e\u8a2d\u5b9a\u3001\u914d\u4fe1\u6642\u306bTLS\u63a5\u7d9a\u3092\u884c\u3046\u5fc5\u8981<\/strong>\u306a\u3069\u3001\u69d8\u3005\u306a\u5bfe\u5fdc\u4e8b\u9805\u306e\u8a18\u8f09\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306b<strong>1\u65e5\u3042\u305f\u308a5,000\u4ef6\u3092\u8d85\u3048\u308b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u306f\u3001<\/strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306b<strong>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3001\u5168\u3066\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981<\/strong>\u3068\u3001\u8a18\u8f09\u304c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u304c\u672a\u8a2d\u5b9a<\/strong>\u306e\u5834\u5408\u3001\u30e1\u30fc\u30eb\u304c\u60f3\u5b9a\u901a\u308a\u306b\u914d\u4fe1\u3055\u308c\u306a\u304b\u3063\u305f\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5206\u985e\u3055\u308c\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002\u305d\u306e\u4ed6\u306b\u3082\u30e1\u30fc\u30eb\u9001\u4fe1\u306b<strong>TLS\u63a5\u7d9a\u306e\u5229\u7528<\/strong>\u3084\u3001<strong>\u5b89\u6613\u306b\u767b\u9332\u89e3\u9664\u3067\u304d\u308b\u30d5\u30a9\u30fc\u30e0\u304c\u5fc5\u8981<\/strong>\u306a\u3069\u3001\u5bfe\u5fdc\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u304c\u6570\u591a\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6628\u4eca\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306b\u3088\u308b\u8a50\u6b3a\u88ab\u5bb3<\/strong>\u3084<strong>\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u306b\u3088\u308b\u500b\u4eba\u60c5\u5831\u306e\u6d41\u51fa<\/strong>\u306a\u3069\u3067\u554f\u984c\u8996\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001Google\u304c\u4e0a\u8a18\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u516c\u958b\u3059\u308b\u3053\u3068\u3067\u30e6\u30fc\u30b6\u30fc\u3092\u5b88\u308d\u3046\u3068\u3057\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u3053\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u3064\u3044\u3066\u306fGoogle\u3060\u3051\u3067\u306a\u304f\u3001<strong>\u7c73\u56fdyahoo\u3067\u3082\u540c\u69d8\u306e\u5185\u5bb9\u304c\u30ea\u30ea\u30fc\u30b9<\/strong>\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u305d\u3053\u3067\u672c\u8a18\u4e8b\u306f\u3001\u4e0a\u8a18\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u89e3\u8aac\u3068\u3001\u5bfe\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e<strong>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c<\/strong>\u3092\u306f\u3058\u3081\u3001\u5bfe\u5fdc\u4e8b\u9805\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001<strong>\u65b0\u3057\u3044\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u8a73\u7d30<\/strong>\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u306e\u7121\u6599\u30ac\u30a4\u30c9\u30d6\u30c3\u30af\u3067\u89e3\u8aac\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/download\/gmail-guideline-5\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/01\/gmail_bunner.png\" alt=\"Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u89e3\u8aac\uff06\u5bfe\u5fdc\u30ac\u30a4\u30c9\u30d6\u30c3\u30af\" width=\"90\" height=\"59\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u89e3\u8aac\uff06\u5bfe\u5fdc\u30ac\u30a4\u30c9\u30d6\u30c3\u30af<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u9001\u4fe1\u8005 \u30ac\u30a4\u30c9\u30e9\u30a4\u30f3 \u89e3\u8aac\uff06\u5bfe\u5fdc\u65b9\u6cd5 \u5bfe\u5fdc\u65b9\u6cd5\u3082\u8a18\u8f09\u3057\u305f\u30ac\u30a4\u30c9\u30d6\u30c3\u30af\u3067\u3059\uff01 \u3053\u306e\u8cc7\u6599\u3067\u5206\u304b\u308b\u3053\u3068 Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u89e3\u8aac\uff06\u5bfe\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>\u30102025\u5e7411\u6708\u6700\u65b0\u3011\u898f\u5236\u304c\u3055\u3089\u306b\u53b3\u683c\u5316\uff01\u672a\u5bfe\u5fdc\u30e1\u30fc\u30eb\u306f\u300c\u62d2\u5426\u300d\u5bfe\u8c61\u3078<\/h2>\n<p>Google\u306f\u5f53\u521d\u3001\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u672a\u5bfe\u5fdc\u306e\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3078\u306e\u632f\u308a\u5206\u3051\u300d\u3084\u300c\u62d2\u5426\u306e\u53ef\u80fd\u6027\u300d\u3092\u793a\u5506\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u30012025\u5e7411\u6708\u3088\u308a\u3053\u306e\u5bfe\u5fdc\u3092\u3055\u3089\u306b\u53b3\u683c\u5316\u3059\u308b\u3068\u306e\u65b9\u91dd\u3092\u767a\u8868\u3057\u307e\u3057\u305f\u3002Google Workspace\u7ba1\u7406\u8005\u30d8\u30eb\u30d7\u306e\u516c\u5f0fFAQ\u306b\u3088\u308b\u3068\u30012025\u5e7411\u6708\u4ee5\u964d\u3001\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30e1\u30fc\u30eb\uff08\u975e\u6e96\u62e0\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\uff09\u306b\u5bfe\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u53b3\u3057\u3044\u63aa\u7f6e\u304c\u53d6\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u914d\u4fe1\u306e\u4e2d\u65ad\u3001\u4e00\u6642\u7684\u306a\u62d2\u5426\u3001\u307e\u305f\u306f\u6c38\u7d9a\u7684\u306a\u62d2\u5426 \uff08Messages that fail to meet the email sender requirements will experience disruptions, including temporary and permanent rejections.\uff09<\/div><\/li>\n<\/ul>\n<p>\u3053\u308c\u307e\u3067\u306f\u300c\u5c4a\u304f\u304b\u3082\u3057\u308c\u306a\u3044\u3057\u3001\u5c4a\u304b\u306a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u300d\u3068\u3044\u3046\u72b6\u6cc1\u3067\u3057\u305f\u304c\u3001\u4eca\u5f8c\u306f\u300c\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3051\u308c\u3070\u3001\u78ba\u5b9f\u306b\u5c4a\u304b\u306a\u304f\u306a\u308b\uff08\u62d2\u5426\u3055\u308c\u308b\uff09\u300d\u30ea\u30b9\u30af\u304c\u6975\u3081\u3066\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u3001\u9867\u5ba2\u3084\u53d6\u5f15\u5148\u304c\u500b\u4eba\u306eGmail\u30a2\u30c9\u30ec\u30b9\uff08@gmail.com\u306a\u3069\uff09\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3053\u3068\u306f\u30d3\u30b8\u30cd\u30b9\u4e0a\u306e\u81f4\u547d\u7684\u306a\u6a5f\u4f1a\u640d\u5931\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u3082\u306f\u3084\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u5bfe\u5fdc\u306f\u63a8\u5968\u30ec\u30d9\u30eb\u3067\u306f\u306a\u304f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3046\u4f01\u696d\u306b\u3068\u3063\u3066\u306e\u5fc5\u9808\u4e8b\u9805\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u203b\u73fe\u6642\u70b9\u3067\u306f\u3001\u4f01\u696d\u3084\u5b66\u6821\u306a\u3069\u304c\u5229\u7528\u3059\u308bGoogle Workspace\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306e\u30e1\u30fc\u30eb\u306b\u306f\u9069\u7528\u3055\u308c\u307e\u305b\u3093\u304c\u3001\u5c06\u6765\u7684\u306b\u7bc4\u56f2\u304c\u62e1\u5927\u3055\u308c\u308b\u53ef\u80fd\u6027\u3082\u898b\u636e\u3048\u3001\u3042\u308f\u305b\u3066\u5bfe\u5fdc\u3092\u9032\u3081\u3066\u304a\u304f\u3053\u3068\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u53c2\u7167\u5143\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/support.google.com\/a\/answer\/14229414\" target=\"_blank\" rel=\"noopener\">\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/strong><br \/>\n<strong>\u203b2025\u5e7412\u67085\u65e5\uff08\u91d1\uff09\u78ba\u8a8d\u6e08\u307f<\/strong><\/p>\n<h2>Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u306f<\/h2>\n<p>\u307e\u305a\u306fGmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u3064\u3044\u3066\u89e3\u8aac\u3092\u3057\u307e\u3059\u3002Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u4e0b\u8a18\u306e2\u7a2e\u985e\u3067\u3059\u3002<\/p>\n<div class=\"box01\"><span class=\"box-title\">Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u306f<\/span>\u30fb\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u304c@gmail.com\u3082\u3057\u304f\u306f@googlemail.com\n\u30fbGoogle Workspace \u3092\u5229\u7528\u3057\u3066\u3044\u308b\u30a2\u30ab\u30a6\u30f3\u30c8 \u3000<\/div>\n<p>\u300c<strong>Google Workspace \u3092\u5229\u7528\u3057\u3066\u3044\u308b\u30a2\u30ab\u30a6\u30f3\u30c8<\/strong>\u300d\u306f\u30d3\u30b8\u30cd\u30b9\u30b7\u30fc\u30f3\u3067\u591a\u304f\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001<strong>\uff20\u4ee5\u964d\u306b\u4f01\u696d\u30c9\u30e1\u30a4\u30f3\u3092\u8a2d\u5b9a<\/strong>\u3092\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3067\u3059\u3002<img decoding=\"async\" class=\"alignnone size-full wp-image-13803\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/domain.png\" alt=\"\" width=\"956\" height=\"401\" \/><br \/>\n<div class=\"box01\"><span class=\"box-title\">\u30c9\u30e1\u30a4\u30f3\u3068\u306f<\/span>\u30c9\u30e1\u30a4\u30f3\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u4f4f\u6240\u3092\u6307\u3057\u307e\u3059\u3002Web\u30b5\u30a4\u30c8\u306eURL\u3084\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u4e2d\u3067\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u3092\u53d6\u5f97\u3059\u308c\u3070\u81ea\u7531\u306a\u6587\u5b57\u5217\u3067\u4f5c\u6210\u3067\u304d\u308b\u305f\u3081\u3001\u81ea\u793e\u306e\u8a8d\u77e5\u3084\u4fe1\u983c\u611f\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/div>\n<p>\u305d\u306e\u305f\u3081\u3001\u914d\u4fe1\u30ea\u30b9\u30c8\u306b\u3069\u308c\u304f\u3089\u3044Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u304b\u3092<strong>\u898b\u5206\u3051\u308b\u306e\u306f\u975e\u5e38\u306b\u56f0\u96e3<\/strong>\u3067\u3059\u3002<\/p>\n<p><span style=\"text-decoration: underline;\"><a href=\"https:\/\/businessmail.or.jp\/research\/2021-result\/\">\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u5b9f\u614b\u8abf\u67fb2021<\/a><\/span>\u306b\u3088\u308b\u3068\u3001\u4ed5\u4e8b\u3067\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u306f<strong>\u300cOutlook\u300d\u3068\u300cGmail\u300d\u306e\u4e8c\u5f37\u6642\u4ee3<\/strong>\u3067\u3042\u308b\u3068\u8a18\u8f09\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u81ea\u793e\u304c\u4fdd\u6709\u3057\u3066\u3044\u308b\u30ea\u30b9\u30c8\u306e\u5927\u534a\u304cGmail\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u3042\u308b\u3068\u3044\u3063\u305f\u30b1\u30fc\u30b9\u3082\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2><strong>\u8a72\u5f53\u3059\u308bGmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u500b\u4eba\u7528\u306e\u307f<\/strong><\/h2>\n<p>Gmail\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u305f\u76f4\u5f8c\u306f\u3001\u300cGmail\u30a2\u30ab\u30a6\u30f3\u30c8\u300d\u306e\u307f\u8a18\u8f09\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001<strong>2023\u5e7412\u6708\u4e0a\u65ec\u306b\u300c\u5bfe\u8c61\u306f\u500b\u4eba\u7528Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u307f\u300d\u3068\u4fee\u6b63<\/strong>\u3055\u308c\u305f\u306e\u3067\u3001Google Workspace\u306f\u5bfe\u8c61\u5916\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-14162\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/gamil-guideline-update.png\" alt=\"\" width=\"792\" height=\"330\" \/><\/p>\n<div class=\"box01\"><span class=\"box-title\">\u500b\u4eba\u7528Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u306f<\/span>\u30fb\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u672b\u5c3e\u304c@gmail.com\n\u30fb\u3082\u3057\u304f\u306f\u672b\u5c3e\u304cgooglemail.com<\/div>\n<p>\u3057\u304b\u3057\u3001\u4eca\u5f8c\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067Google Workspace\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3082\u5bfe\u8c61\u306b\u306a\u308b\u53ef\u80fd\u6027\u306f\u5341\u5206\u306b\u3042\u308b\u306e\u3067\u3001\u4eca\u306e\u3046\u3061\u304b\u3089<strong>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c<\/strong>\u306e\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<h2>\u3044\u3064\u307e\u3067\u306b\u5bfe\u5fdc\u3092\u3059\u308c\u3070\u3044\u3044\u306e\u304b<\/h2>\n<p>\u4eca\u56de\u306e<strong>\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u9069\u7528\u3055\u308c\u308b\u306e\u306f2024\u5e742\u67081\u65e5\u304b\u3089<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u9069\u7528\u524d\u306e\u73fe\u5728\u3067\u3082<strong>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u3092\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u4eca\u56de\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u8a2d\u5b9a\u3092\u63a8\u5968\u3055\u308c\u3066\u3044\u308b\u3001SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3063\u3066\u3044\u308b\u65b9\u3067\u3042\u308c\u3070\u3001<strong>\u5168\u54e1\u5bfe\u5fdc\u3092\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081<\/strong>\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u308c\u30893\u3064\u306e\u8a2d\u5b9a\u3092\u884c\u3063\u3066\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u7406\u7531\u306f<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3078\u306e\u5224\u5b9a\u304c\u6e1b\u70b9\u5f0f<\/strong>\u3060\u304b\u3089\u3067\u3059\u3002SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u305d\u3082\u305d\u3082\u306e<strong>\u30e1\u30fc\u30eb\u5185\u5bb9\u3084\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u984c\u304c\u3042\u308b\u3068\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044<\/strong>\u30b1\u30fc\u30b9\u306f\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2>\u3069\u306e\u3088\u3046\u306a\u5bfe\u5fdc\u3092\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u304b<\/h2>\n<p>\u5177\u4f53\u7684\u306b\u5bfe\u5fdc\u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u9805\u76ee\u306f\u4e0b\u8a18\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"box01\"><span class=\"box-title\">\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306e\u5bfe\u5fdc\u4e8b\u9805<\/span>\n<ul>\n<li>\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u3092\u8a2d\u5b9a\u3059\u308b<\/li>\n<li>\u5b89\u6613\u306b\u767b\u9332\u89e3\u9664(\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664)\u304c\u3067\u304d\u308b\u30d5\u30a9\u30fc\u30e0\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<li>\u30e1\u30fc\u30eb\u9001\u4fe1\u6642\u306bTLS\u63a5\u7d9a\u3092\u884c\u3046<\/li>\n<li> 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href=\"https:\/\/blastmail.jp\/blog\/spam\/spf-record\">\u3010\u56f3\u89e3\u3011SPF\u30ec\u30b3\u30fc\u30c9\u3068\u306f\uff1f\uff1fspf\u30ec\u30b3\u30fc\u30c9\u306e\u4ed5\u7d44\u307f\u3092\u521d\u5fc3\u8005\u306b\u3082\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059<\/a><\/p>\n<h3>SPF\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\u624b\u9806\u306f\u4e0b\u8a18\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u6700\u521d\u306b\u3001<strong>\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u904b\u55b6\u4f1a\u793e<\/strong>\u306b\u300cSPF\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b<strong>SPF\u30ec\u30b3\u30fc\u30c9<\/strong>\u3092\u6559\u3048\u3066\u307b\u3057\u3044\u300d\u3068\u4f9d\u983c\u3057\u307e\u3057\u3087\u3046\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u904b\u55b6\u4f1a\u793e\u304b\u3089SPF\u30ec\u30b3\u30fc\u30c9\u3092\u6559\u3048\u3066\u3082\u3089\u3063\u305f\u3089\u3001<strong>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u7ba1\u7406\u753b\u9762\u306b\u30ed\u30b0\u30a4\u30f3<\/strong>\u3092\u3057\u3066\u3001<strong>SPF\u30ec\u30b3\u30fc\u30c9\u3092\u8a18\u5165<\/strong>\u3057\u307e\u3059\u3002<\/p>\n<p>\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u306b\u3064\u3044\u3066\u306f\u5916\u90e8\u306b\u59d4\u8a17\u3092\u3057\u3066\u3044\u308b\u4f01\u696d\u3082\u591a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u305d\u306e\u969b\u306fSPF\u30ec\u30b3\u30fc\u30c9\u3092\u59d4\u8a17\u5148\u306e\u4f1a\u793e\u306b\u63d0\u4f9b\u3057\u3001\u8a2d\u5b9a\u3092\u4f9d\u983c\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>DKIM\u7f72\u540d<\/h2>\n<p>DKIM\u7f72\u540d\u306f\u3001<strong>\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u5411\u4e0a\u306e\u305f\u3081\u306e\u6280\u8853<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u8005\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304c<strong>\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d(\u79d8\u5bc6\u9375)<\/strong>\u3092\u4ed8\u3051\u3001\u53d7\u4fe1\u8005\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u305d\u306e\u7f72\u540d\u3092<strong>DNS\u30b5\u30fc\u30d0\u30fc<\/strong>\u3092\u901a\u3057\u3066\u691c\u8a3c\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u304c\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u304cDNS\u30b5\u30fc\u30d0\u30fc\u78ba\u8a8d\u304c\u3067\u304d\u308b\u3068\u3001<strong>\u96fb\u5b50\u7f72\u540d(\u79d8\u5bc6\u9375)\u3092\u89e3\u9664\u3059\u308b\u305f\u3081\u306e\u516c\u958b\u9375\u3092\u4ed8\u4e0e<\/strong>\u3057\u3066\u3001\u53d7\u4fe1\u7528\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u3089\u308c\u3066\u3001\u76f8\u624b\u306e\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304d\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-13801\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/dkim.png\" alt=\"\" width=\"975\" height=\"667\" \/><\/p>\n<p>DKIM\u7f72\u540d\u306e\u8a73\u3057\u3044\u89e3\u8aac\u306b\u3064\u3044\u3066\u306f\u3001\u4e0b\u8a18\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u4e0b\u3055\u3044\u3002<\/p>\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/mail-delivery\/dkim\">\u3010\u56f3\u89e3\u3042\u308a\u3011DKIM\u306e\u5f79\u5272\u30923\u5206\u3067\u89e3\u8aac\uff01\uff01\u30c9\u30e1\u30a4\u30f3\u9001\u4fe1\u6280\u8853\u306eDKIM\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3088\u3046<\/a><\/p>\n<h3>DKIM\u7f72\u540d\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n<p>\u307e\u305a\u306f\u5c0e\u5165\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u300c<strong>\u30c9\u30e1\u30a4\u30f3\u30ad\u30fc<\/strong>\u300d\u3092\u5165\u624b\u3057\u307e\u3059\u3002(\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u5834\u5408\u306f\u79d8\u5bc6\u9375)<\/p>\n<p>\u305d\u306e\u6b21\u306b<strong>\u30c9\u30e1\u30a4\u30f3\u306e\u7ba1\u7406\u753b\u9762\u306b\u30ed\u30b0\u30a4\u30f3<\/strong>\u3092\u3057\u3066\u3001<strong>\u30c9\u30e1\u30a4\u30f3\u30ad\u30fc\u3092\u8a18\u5165<\/strong>\u3057\u307e\u3059\u3002<\/p>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u3068\u540c\u69d8\u3067\u3001\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u3092\u5916\u90e8\u306b\u59d4\u8a17\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u59d4\u8a17\u5148\u306e\u4f1a\u793e\u306b\u63d0\u4f9b\u3057\u3001\u8a2d\u5b9a\u3092\u4f9d\u983c\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>DKIM\u7f72\u540d\u306e\u7a2e\u985e\u306b\u3064\u3044\u3066<\/h3>\n<p>DKIM\u7f72\u540d\u306b\u306f\u3001<strong>\u7b2c\u4e09\u8005\u7f72\u540d<\/strong>\u3068<strong>\u4f5c\u6210\u8005\u7f72\u540d<\/strong>\u306e2\u7a2e\u985e\u306e\u7f72\u540d\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u304b\u3089\u306f\u3053\u306e2\u3064\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u89e3\u8aac\u3092\u3057\u307e\u3059\u3002<\/p>\n<h4>\u7b2c\u4e09\u8005\u7f72\u540d\u306b\u3064\u3044\u3066<\/h4>\n<p>\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u306f\u7570\u306a\u308b\u30c9\u30e1\u30a4\u30f3\u3067\u4f5c\u6210\u3059\u308b\u7f72\u540d\u3067\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u30b7\u30b9\u30c6\u30e0\u304c\u7528\u610f\u3057\u3066\u3044\u308b\u7f72\u540d\u304c\u53cd\u6620\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-13884 aligncenter\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/dkimshomei_daisanshashomei.jpg\" alt=\"\" width=\"527\" height=\"296\" \/><\/p>\n<p>\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3070\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u3069\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u306e\u304b\u306f\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>\u4f5c\u6210\u8005\u7f72\u540d\u306b\u3064\u3044\u3066<\/h4>\n<p>\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u4f5c\u6210\u3059\u308b\u7f72\u540d\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-13885 aligncenter\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/dkimshomei_sakuseishashomei.jpg\" alt=\"\" width=\"513\" height=\"327\" \/><\/p>\n<p>\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u90e8\u5206\u306b\u8868\u793a\u3055\u308c\u308bFrom\u30a2\u30c9\u30ec\u30b9\u3068\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u3067\u7f72\u540d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001<strong>\u7b2c\u4e09\u8005\u7f72\u540d\u3088\u308a\u3082\u4fe1\u983c\u6027\u304c\u9ad8\u3044<\/strong>\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>SPF\u30ec\u30b3\u30fc\u30c9\u3068DKIM\u7f72\u540d\u306e\u9055\u3044\u306b\u3064\u3044\u3066<\/h3>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u3068DKIM\u7f72\u540d\u306b\u3064\u3044\u3066\u89e3\u8aac\u3092\u3057\u307e\u3057\u305f\u304c\u3001\u9055\u3044\u304c\u5206\u304b\u308a\u306b\u304f\u3044\u3068\u611f\u3058\u305f\u65b9\u3082\u3044\u3089\u3063\u3057\u3083\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u3069\u3061\u3089\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u308b\u3053\u3068\u3092\u9632\u3050\u4ed5\u7d44\u307f\u3068\u3044\u3046\u70b9\u3067\u306f\u540c\u3058\u3067\u3059\u304c\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u793a\u3059\u3068\u304d\u306b\u8a3c\u660e\u3059\u308b\u60c5\u5831\u304c\u7570\u306a\u308a\u307e\u3059<\/strong>\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\uff1a<\/strong>IP\u30a2\u30c9\u30ec\u30b9(\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u306e\u4f4f\u6240)\u3092\u4f7f\u3063\u3066\u8a8d\u8a3c\u3059\u308b<\/li>\n<li><strong>DKIM\uff1a<\/strong>\u96fb\u5b50\u7f72\u540d\u3092\u4f7f\u3063\u3066\u8a8d\u8a3c\u3059\u308b\u3000<\/div><\/li>\n<\/ul>\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306b\u5206\u985e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>DMARC<\/h2>\n<p><strong>DMARC<\/strong>\u3068\u306f(Domain-based Message Authentication, Reporting and Conformance) \u306e\u7565\u3067\u3001\u524d\u8ff0\u3057\u305f<strong>SPF\u30ec\u30b3\u30fc\u30c9\u3084DKIM\u7f72\u540d\u3067\u306e\u8a8d\u8a3c\u306b\u5931\u6557<\/strong>\u3057\u305f\u3068\u304d\u306b<strong>\u305d\u306e\u30e1\u30fc\u30eb\u3092\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3059\u308b\u306e<\/strong>\u304b\u3092\u8a2d\u5b9a\u3092\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-13804\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/dmarc.png\" alt=\"\" width=\"1253\" height=\"775\" \/><\/p>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u3084DKIM\u7f72\u540d\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3092\u3057\u3066\u3082\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001<strong>DMARC\u306e\u8a2d\u5b9a\u307e\u3067\u884c\u3046\u3053\u3068\u304c\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u5411\u4e0a\u306e\u9375<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DMARC\u306b\u3064\u3044\u3066\u306f\u4e0b\u8a18\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/spam\/dmarc-mail\">\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u9375\uff01 \u300cDMARC\u300d\u306b\u95a2\u3059\u308b\u57fa\u790e\u77e5\u8b58<\/a><\/p>\n<h3>DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n<p><strong>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u753b\u9762\u306b\u30ed\u30b0\u30a4\u30f3<\/strong>\u3092\u3057\u3066\u3001<strong>DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u8a18\u5165<\/strong>\u3057\u307e\u3059\u3002DMARC\u30ec\u30b3\u30fc\u30c9\u306f\u4e0b\u8a18\u306e3\u7a2e\u985e\u3067\u3059\u3002<\/p>\n<div class=\"box01\"><span class=\"box-title\">DMARC\u30ec\u30b3\u30fc\u30c9<\/span>\n<ul>\n<li>\u4f55\u3082\u3057\u306a\u3044\uff08none\uff09<\/li>\n<li>\u9694\u96e2\u3055\u305b\u308b\uff08quarantine\uff09<\/li>\n<li>\u53d7\u4fe1\u62d2\u5426\uff08reject\uff09\u3000<\/div><\/li>\n<\/ul>\n<p>\u57fa\u672c\u7684\u306b\u306f \u300c<strong>none<\/strong>\u300d\u3068\u8a18\u8f09\u3092\u3059\u308c\u3070\u554f\u984c\u306a\u3044\u3067\u3059\u3002<\/p>\n<p>\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u3092\u5916\u90e8\u306b\u59d4\u8a17\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u59d4\u8a17\u5148\u306e\u4f1a\u793e\u306b\u8a2d\u5b9a\u3057\u305f\u3044DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u4f1d\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3067\u304d\u3066\u3044\u308b\u304b\u306e\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n<p>\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5185\u5bb9\u3092\u4e00\u901a\u308a\u7406\u89e3\u3057\u305f\u3068\u3057\u3066\u3082\u3001\u300c\u5b9f\u969b\u306b\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u8a2d\u5b9a\u304c\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u300d\u300cGoogle\u304b\u3089\u3069\u306e\u3088\u3046\u306b\u8a55\u4fa1\u3055\u308c\u3066\u3044\u308b\u304b\u300d\u304c\u5206\u304b\u3089\u306a\u3051\u308c\u3070\u3001\u5bfe\u7b56\u304c\u5b8c\u4e86\u3057\u305f\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002<\/p>\n<p>\u8a2d\u5b9a\u3092\u884c\u3063\u305f\u3064\u3082\u308a\u3067\u3082\u3001DNS\u30ec\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0\u30df\u30b9\u3084\u53cd\u6620\u9045\u5ef6\u306b\u3088\u3063\u3066\u3001\u610f\u56f3\u305b\u305a\u672a\u5bfe\u5fdc\u306e\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u3001\u81ea\u793e\u306e\u5bfe\u5fdc\u72b6\u6cc1\u3084\u30e1\u30fc\u30eb\u306e\u5230\u9054\u54c1\u8cea\u3092\u5177\u4f53\u7684\u306b\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e3\u3064\u306e\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>Gmail\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u304b\u3089\u8a8d\u8a3c\u7d50\u679c\uff08PASS\/FAIL\uff09\u3092\u78ba\u8a8d\u3059\u308b\u624b\u9806<\/h3>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u306e\u8a2d\u5b9a\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u78ba\u8a8d\u65b9\u6cd5\u306f<strong>\u81ea\u5206\u5b9b\u306b\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3092\u884c\u3044\u3001\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u3067\u78ba\u8a8d<\/strong>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30e1\u30fc\u30eb\u3092\u958b\u5c01\u3057\u305f\u3089\u3001\u672c\u6587\u306e\u53f3\u4e0a\u306b\u3042\u308b<strong>3\u70b9\u30ea\u30fc\u30c9\u3092\u30af\u30ea\u30c3\u30af<\/strong>\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-13811 aligncenter\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/gamil_3reed.png\" alt=\"\" width=\"494\" height=\"412\" \/><\/p>\n<p>3\u70b9\u30ea\u30fc\u30c9\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u4e0b\u8a18\u306b\u3088\u3046\u306a\u30e1\u30cb\u30e5\u30fc\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u4e2d\u304b\u3089<strong>\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-13813 aligncenter\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/gmai_sosu.png\" alt=\"\" width=\"498\" height=\"482\" \/><\/p>\n<p>\u30af\u30ea\u30c3\u30af\u5f8c\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30da\u30fc\u30b8\u306b\u9077\u79fb\u3057\u307e\u3059\u3002SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001SPF\uff65DKIM\uff65DMARC\u306e\u9805\u76ee\u306b<strong>PASS<\/strong>\u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-13829 aligncenter\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/1-1.png\" alt=\"gmail_ soushinmoto\" width=\"800\" height=\"340\" \/><\/p>\n<p><strong>SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u306f\u8a2d\u5b9a\u6e08\u307f\u3001DMARC\u304c\u672a\u8a2d\u5b9a<\/strong>\u306e\u5834\u5408\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-13831 aligncenter\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/2-1.png\" alt=\"gamai_dmarc\" width=\"800\" height=\"340\" \/><\/p>\n<p>\u4ee5\u4e0a\u306e\u3088\u3046\u306b\u7c21\u5358\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3001\u8a2d\u5b9a\u5f8c\u306f\u4e0a\u8a18\u306e\u624b\u9806\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>Google Postmaster Tools\u3092\u6d3b\u7528\u3057\u3066\u30a8\u30e9\u30fc\u7387\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b<\/h3>\n<p>\u5927\u91cf\u914d\u4fe1\u3092\u884c\u3046\u9001\u4fe1\u8005\u306b\u3068\u3063\u3066\u3001\u6700\u3082\u78ba\u5b9f\u304b\u3064\u91cd\u8981\u306a\u78ba\u8a8d\u624b\u6bb5\u304c\u3001Google\u304c\u516c\u5f0f\u306b\u63d0\u4f9b\u3057\u3066\u3044\u308b\u300cGoogle Postmaster Tools\uff08\u30dd\u30b9\u30c8\u30de\u30b9\u30bf\u30fc\u30c4\u30fc\u30eb\uff09\u300d\u306e\u6d3b\u7528\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c4\u30fc\u30eb\u306b\u81ea\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u767b\u9332\u3059\u308b\u3053\u3068\u3067\u3001Gmail\u5b9b\u3066\u306b\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306e\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\uff08\u30b9\u30d1\u30e0\u7387\uff09\u300d\u3084\u300c\u30c9\u30e1\u30a4\u30f3\u30fbIP\u306e\u8a55\u5224\uff08\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\uff09\u300d\u3001\u300c\u8a8d\u8a3c\u306e\u6210\u529f\u7387\u300d\u306a\u3069\u3092\u53ef\u8996\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306f\u3001<span style=\"color: #ff0000;\"><strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u300c0.1%\u672a\u6e80\u306b\u7dad\u6301\u3059\u308b\u3053\u3068\u300d\u304c\u63a8\u5968\u3055\u308c\u3001\u300c0.3%\u3092\u6c7a\u3057\u3066\u8d85\u3048\u306a\u3044\u3053\u3068\u300d\u304c\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059<\/strong><\/span>\u3002\u3053\u306e\u6570\u5024\u306f\u9001\u4fe1\u8005\u5074\u304b\u3089\u306f\u898b\u3048\u306b\u304f\u3044\u305f\u3081\u3001Postmaster Tools\u3092\u4f7f\u3063\u3066\u5b9a\u671f\u7684\u306b\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3057\u3001Google\u304b\u3089\u306e\u8a55\u4fa1\u3092\u5ba2\u89b3\u7684\u306a\u6570\u5024\u3068\u3057\u3066\u628a\u63e1\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u5fc5\u9808\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30b3\u30de\u30f3\u30c9\u3084\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066SPF\/DKIM\/DMARC\u306e\u8a2d\u5b9a\u72b6\u6cc1\u3092\u8a3a\u65ad\u3059\u308b<\/h3>\n<p>SPF\u3001DKIM\u3001DMARC\u306e\u5404\u8a8d\u8a3c\u6280\u8853\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3059\u308bDNS\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ec\u30b3\u30fc\u30c9\u767b\u9332\u306b\u3088\u3063\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u8a2d\u5b9a\u304c\u6b63\u3057\u304f\u8a18\u8ff0\u3055\u308c\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u306b\u306f\u3001\u5c02\u7528\u306e\u78ba\u8a8d\u30c4\u30fc\u30eb\u3084\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u306e\u304c\u52b9\u7387\u7684\u3067\u3059\u3002<\/p>\n<p>\u6280\u8853\u306b\u8a73\u3057\u3044\u65b9\u3067\u3042\u308c\u3070\u3001\u30d1\u30bd\u30b3\u30f3\u306e\u30bf\u30fc\u30df\u30ca\u30eb\uff08\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\uff09\u304b\u3089nslookup\u3084dig\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u76f4\u63a5\u30ec\u30b3\u30fc\u30c9\u3092\u5f15\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001Web\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u5229\u7528\u3067\u304d\u308b\u7121\u6599\u306e\u300cDMARC\u78ba\u8a8d\u30c4\u30fc\u30eb\u300d\u3084\u300cMX\u30ec\u30b3\u30fc\u30c9\u30c1\u30a7\u30c3\u30af\u30c4\u30fc\u30eb\u300d\u3092\u5229\u7528\u3059\u308b\u306e\u3082\u624b\u8efd\u3067\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<p>\u30c4\u30fc\u30eb\u3092\u5229\u7528\u3059\u308b\u969b\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u304c\u6b63\u5e38\u306b\u8868\u793a\u3055\u308c\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\u30ec\u30b3\u30fc\u30c9<\/strong>\n\u69cb\u6587\u30a8\u30e9\u30fc\u304c\u306a\u3044\u304b\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u6307\u5b9a\u306b\u6f0f\u308c\u304c\u306a\u3044\u304b<\/li>\n<li><strong>DKIM\u7f72\u540d<\/strong>\n\u516c\u958b\u9375\u304c\u6b63\u3057\u304f\u53d6\u5f97\u3067\u304d\u308b\u304b<\/li>\n<li><strong>DMARC\u30dd\u30ea\u30b7\u30fc<\/strong>\np=none\uff08\u76e3\u8996\u306e\u307f\uff09\u3001p=quarantine\uff08\u9694\u96e2\uff09\u3001p=reject\uff08\u62d2\u5426\uff09\u306e\u3044\u305a\u308c\u304b\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b<\/div><\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u3067\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u5834\u5408\u306f\u3001DNS\u306e\u8a2d\u5b9a\u81ea\u4f53\u306b\u8aa4\u308a\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u305f\u3081\u3001\u65e9\u6025\u306a\u4fee\u6b63\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2>\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u8a2d\u5b9a\u65b9\u6cd5\u306e\u307e\u3068\u3081<\/h2>\n<p>\u3053\u3053\u307e\u3067\u3001SPF\u30ec\u30b3\u30fc\u30c9\u30fbDKIM\u7f72\u540d\u30fbDMARC\u306e\u7279\u5fb4\u3068\u8a2d\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002\u305d\u308c\u305e\u308c\u306e\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u56f3\u89e3\u3059\u308b\u3068\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-13805\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/spf_dkim_dmarc.png\" alt=\"\" width=\"1248\" height=\"679\" \/><\/p>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u3068DKIM\u7f72\u540d\u306f\u914d\u4fe1\u30c4\u30fc\u30eb\u306e\u904b\u55b6\u5143\u306b\u8a2d\u5b9a\u3092\u805e\u304f\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u306f<strong>\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u7ba1\u7406\u753b\u9762\u4e0a\u3067SPF\u30ec\u30b3\u30fc\u30c9\u3068\u30c9\u30e1\u30a4\u30f3\u30ad\u30fc\u3092\u5165\u624b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/strong>\u306e\u3067\u3001\u904b\u55b6\u5143\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u524d\u306b\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h2>\u305d\u306e\u4ed6\u306e\u5bfe\u5fdc\u4e8b\u9805\u306b\u3064\u3044\u3066<\/h2>\n<p>\u3053\u3053\u307e\u3067\u306f\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u306b\u3064\u3044\u3066\u89e3\u8aac\u3092\u884c\u3044\u307e\u3057\u305f\u304c\u3001\u4eca\u56de\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u3067\u306f\u4ed6\u306b\u3082\u5bfe\u5fdc\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u8a73\u3057\u304f\u89e3\u8aac\u3092\u884c\u3044\u307e\u3059\u306e\u3067\u3001\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u5b89\u6613\u306b\u767b\u9332\u89e3\u9664\u304c\u3067\u304d\u308b\u30d5\u30a9\u30fc\u30e0\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n<p><strong>\u203b1\u65e5\u3042\u305f\u308a5,000\u4ef6\u4ee5\u4e0a\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u304c\u5bfe\u8c61\u3067\u3059\u3002<\/strong><\/p>\n<p>\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u6b21\u306f\u5b89\u6613\u306b\u914d\u4fe1\u767b\u9332\u306e\u89e3\u9664(\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664)\u304c\u3067\u304d\u308b\u30d5\u30a9\u30fc\u30e0\u3092\u8a2d\u7f6e\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5<\/strong>\u3067\u306f\u3001\u5b9a\u671f\u7684\u306a\u30e1\u30fc\u30eb\u914d\u4fe1(\u30e1\u30eb\u30de\u30ac)\u3092\u884c\u3046\u969b\u3001\u767b\u9332\u89e3\u9664<strong>(\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8)\u306e\u30d5\u30a9\u30fc\u30e0\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068<\/strong>\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u4eca\u5f8c\u306fGoogle\u5074\u3082\u30c1\u30a7\u30c3\u30af\u3092\u3059\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>Google\u304c\u3069\u306e\u3088\u3046\u306b\u30c1\u30a7\u30c3\u30af\u3092\u3059\u308b\u306e\u304b\u306f\u3001\u30ea\u30f3\u30af\u306eURL\u306e\u6587\u5b57\u5217(optout)\u306a\u3069\u3067\u5224\u65ad\u3055\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u5177\u4f53\u7684\u306a\u30c1\u30a7\u30c3\u30af\u65b9\u6cd5\u306f\u958b\u793a\u306f\u3055\u308c\u3066\u304a\u308a\u307e\u305b\u3093\u3002\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664\u306b\u3064\u3044\u3066\u306f\u4e0b\u8a18\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/mail-delivery\/onecrick-cancellation\">\u300c\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664\u300d\u306e\u8a2d\u5b9a\u306f\u5fc5\u9808\uff01\uff1fGmail\u306e\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3059\u308b\u306b\u306f<\/a><\/p>\n<p>\u4e00\u90e8\u306e\u30e1\u30eb\u30de\u30ac\u3067\u306f\u3001\u4f1a\u54e1\u30da\u30fc\u30b8\u306b\u30ed\u30b0\u30a4\u30f3\u3092\u3057\u306a\u3044\u3068\u89e3\u9664\u30d5\u30a9\u30fc\u30e0\u306b\u305f\u3069\u308a\u7740\u3051\u306a\u3044\u5834\u5408\u3084\u767b\u9332\u89e3\u9664\u30d5\u30a9\u30fc\u30e0\u304c\u305d\u3082\u305d\u3082\u898b\u3064\u3051\u306b\u304f\u304b\u3063\u305f\u308a\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u89e3\u9664\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u30b1\u30fc\u30b9\u304c\u5ea6\u3005\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u3088\u3046\u306a\u89e3\u9664\u30d5\u30a9\u30fc\u30e0\u306f\u4eca\u56de\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u9075\u5b88\u3057\u3066\u3044\u306a\u3044\u306e\u3068\u3001<strong>\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u306b\u3082\u62b5\u89e6\u3059\u308b\u6050\u308c<\/strong>\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u7c21\u5358\u306b\u767b\u9332\u89e3\u9664(\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664)\u304c\u3067\u304d\u308b\u30d5\u30a9\u30fc\u30e0\u3092\u7528\u610f\u3057\u307e\u3057\u3087\u3046\u3002\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u306b\u3064\u3044\u3066\u306f\u4e0b\u8a18\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/mailmagazine\/mail-law\">\u300c\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u300d\u3068\u306f\uff1f\u9055\u6cd5\u306b\u306a\u3089\u306a\u3044\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\uff01<\/a><\/p>\n<h3>\u30e1\u30fc\u30eb\u9001\u4fe1\u6642\u306bTLS\u63a5\u7d9a\u3092\u884c\u3046<\/h3>\n<p>\u6b21\u306f\u30e1\u30fc\u30eb\u9001\u4fe1\u6642\u306eTLS\u63a5\u7d9a\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<strong>TLS\u63a5\u7d9a<\/strong>\u3068\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30d6\u30e9\u30a6\u30b6\u3068\u30b5\u30fc\u30d0\u30fc\u3068\u306e\u901a\u4fe1\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u3001<strong>\u5b89\u5168\u306b\u9001\u53d7\u4fe1\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u4ed5\u7d44\u307f<\/strong>\u3067\u3059\u3002<\/p>\n<p>TLS\u63a5\u7d9a\u306b\u5bfe\u5fdc\u3092\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3057\u3066\u3044\u308c\u3070\u554f\u984c\u3042\u308a\u307e\u305b\u304c\u3001\u307e\u305a\u306f\u5229\u7528\u3057\u3066\u3044\u308b\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u304c\u5bfe\u5fdc\u3092\u3057\u3066\u3044\u308b\u304b\u8abf\u3079\u3066\u304a\u304f\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u5fdc\u3092\u3057\u3066\u3044\u308b\u304b\u8abf\u3079\u308b\u306b\u306f\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8\u3084\u88fd\u54c1\u8cc7\u6599\u3092\u78ba\u8a8d\u3057\u3066\u307f\u305f\u308a\u3001\u30ab\u30b9\u30bf\u30de\u30fc\u30bb\u30f3\u30bf\u30fc\u306a\u3069\u306b\u76f4\u63a5\u805e\u3044\u3066\u307f\u308b\u306e\u304c\u78ba\u5b9f\u3067\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5c0e\u5165\u691c\u8a0e\u4e2d\u306e\u65b9\u306f\u3001TLS\u63a5\u7d9a\u306b\u5bfe\u5fdc\u3092\u3057\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u9078\u3073\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u203b<a href=\"https:\/\/blastmail.jp\">\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb<\/a>\u306f\u8ffd\u52a0\u6599\u91d1\u7121\u3057\u3067\u5168\u30d7\u30e9\u30f3\u3001TLS\u63a5\u7d9a\u306b\u5bfe\u5fdc\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/strong><\/p>\n<h3>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u30920.3\uff05\u4ee5\u4e0b\u306b\u3059\u308b<\/h3>\n<p>\u4eca\u56de\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u3067\u306f<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387<\/strong>\u306b\u5bfe\u3057\u3066\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a18\u8f09\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>Postmaster Tools \u3067\u30c9\u30e1\u30a4\u30f3\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u5b9a\u671f\u7684\u306b\u76e3\u8996\u3057\u307e\u3059\u3002<\/li>\n<li>Postmaster Tools \u3067\u5831\u544a\u3055\u308c\u308b\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092 0.10% \u672a\u6e80\u306b\u7dad\u6301\u3057\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c\u6c7a\u3057\u3066 0.30% \u4ee5\u4e0a\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002 \u8a73\u7d30<\/li>\n<li>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u4f4e\u304f\u7dad\u6301\u3059\u308c\u3070\u3001\u4e00\u6642\u7684\u306b\u6025\u4e0a\u6607\u3057\u3066\u3082\u30e1\u30fc\u30eb\u304c\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u3057\u3066\u30de\u30fc\u30af\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<li>\u540c\u69d8\u306b\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c\u9ad8\u3044\u72b6\u614b\u304c\u7d9a\u304f\u3068\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3078\u306e\u5206\u985e\u304c\u5897\u52a0\u3057\u307e\u3059\u3002\u6539\u5584\u3055\u308c\u305f\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3078\u306e\u5206\u985e\u306b\u53cd\u6620\u3055\u308c\u308b\u307e\u3067\u306b\u306f\u3001\u6642\u9593\u304c\u304b\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/div><\/li>\n<\/ul>\n<p><strong>Google\u516c\u5f0f\uff1a<a href=\"https:\/\/support.google.com\/mail\/answer\/81126\" target=\"_blank\" rel=\"noopener\">\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a><\/strong>\u00a0\u3088\u308a\u5f15\u7528<\/p>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u304a\u3055\u3048\u308b\u305f\u3081\u306b\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u304a\u3055\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<div class=\"box01\"><span class=\"box-title\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u304a\u3055\u3048\u308b\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8<\/span>\n<ul>\n<li>\u30aa\u30d7\u30c8\u30a4\u30f3\u304c\u53d6\u5f97\u3067\u304d\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3060\u3051\u306b\u914d\u4fe1\u3092\u3059\u308b<\/li>\n<li>\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8(\u914d\u4fe1\u767b\u9332\u89e3\u9664\u30d5\u30a9\u30fc\u30e0)\u3092\u5fc5\u305a\u8a2d\u7f6e\u3059\u308b<\/li>\n<li>\u30e1\u30fc\u30eb\u306e\u7f72\u540d\u306b\u9001\u4fe1\u8005\u60c5\u5831\u3001\u9023\u7d61\u5148\u3092\u660e\u8a18\u3059\u308b<\/li>\n<li>\u5b9a\u671f\u7684\u306b\u30ea\u30b9\u30c8\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u3092\u884c\u3046<\/li>\n<li>\u53e4\u3044\u30ea\u30b9\u30c8\u3084\u8cfc\u5165\u3057\u305f\u30ea\u30b9\u30c8\u306f\u500b\u5225\u30b0\u30eb\u30fc\u30d7\u3067\u914d\u4fe1\u3059\u308b\u3000<\/div><\/li>\n<\/ul>\n<p>\u307e\u305f\u3001Google\u304c\u63d0\u4f9b\u3057\u3066\u3044\u308b<strong>Postmaster Tools (\u30dd\u30b9\u30c8\u30de\u30b9\u30bf\u30fc\u30c4\u30fc\u30eb)<\/strong>\u3092\u6d3b\u7528\u3059\u308b\u306e\u3082\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/postmaster.google.com\/managedomains\">Postmaster Tools<\/a> \u3068\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u3084IP\u30a2\u30c9\u30ec\u30b9\u3084\u30c9\u30e1\u30a4\u30f3\u306e\u8a55\u4fa1\u306a\u3069\u3001\u914d\u4fe1\u30c4\u30fc\u30eb\u306e\u52b9\u679c\u6e2c\u5b9a\u753b\u9762\u3067\u306f\u53d6\u5f97\u3067\u304d\u306a\u3044\u30c7\u30fc\u30bf\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u8208\u5473\u304c\u3042\u308b\u65b9\u306f\u3001\u305c\u3072\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/mail-delivery\/howto-postmastertools\">Postmaster Tools\u306e\u4f7f\u3044\u65b9\u3002Gmail\u306b\u30e1\u30fc\u30eb\u3092\u5230\u9054\u3055\u305b\u308b\u65bd\u7b56\u3082\u89e3\u8aac\u3057\u307e\u3059\uff01<\/a><\/p>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u306f<strong>\u6bce\u65e5\u8a08\u7b97<\/strong>\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u6c17\u3092\u4ed8\u3051\u307e\u3057\u3087\u3046\u3002<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c 0.1% \u3092\u8d85\u3048\u308b\u3068<\/strong>\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u6642\u306b\u60aa\u5f71\u97ff\u304c\u3067\u59cb\u3081\u308b\u306e\u3067\u3001\u6570\u5024\u306b\u306f\u6c17\u3092\u4ed8\u3051\u307e\u3057\u3087\u3046\u3002\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u3064\u3044\u3066\u306f\u4e0b\u8a18\u306e\u8a18\u4e8b\u3067\u3082\u8a73\u3057\u304f\u89e3\u8aac\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/spam\/sendmail\">\u521d\u5fc3\u8005\u3067\u3082\u5206\u304b\u308b\uff01\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u7406\u7531\u3068\u56de\u907f\u65b9\u6cd5<\/a><\/p>\n<h3>\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306f\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u3092\u5229\u7528\u3059\u308b<\/h3>\n<p><strong>Gmail (\u25cb\u25cb\u25cb\u25cb@gmail.com)\u3092\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066\u5927\u91cf\u306e\u30ea\u30b9\u30c8\u5bfe\u3057\u3066\u914d\u4fe1\u3059\u308b\u3068\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u53d7\u3051\u307e\u3059\u3002<\/strong><\/p>\n<p>\u4eca\u307e\u3067\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u3082\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u306e\u3067\u3001\u4eca\u5f8c\u306f\u3088\u308a\u53b3\u91cd\u306b\u5224\u5b9a\u304c\u3055\u308c\u308b\u3088\u3046\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306f\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u3092\u5229\u7528\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"box01\"><span class=\"box-title\">\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u3068\u306f<\/span>\n<ul>\n<li>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e@\u4ee5\u964d\u304cgmaill.com\u306a\u3069\u6307\u5b9a\u3067\u306f\u306a\u304f\u3001\u4f1a\u793e\u540d\u3084\u30b5\u30fc\u30d3\u30b9\u540d\u306a\u3069\u81ea\u7531\u306b\u8a2d\u5b9a\u304c\u3067\u304d\u308b\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u30c9\u30e1\u30a4\u30f3\u3002<\/div><\/li>\n<\/ul>\n<p>\u901a\u5e38\u3001\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u3092\u53d6\u5f97\u3059\u308b\u969b\u306f<strong>\u30c9\u30e1\u30a4\u30f3\u53d6\u5f97\u4f1a\u793e\u304b\u3089\u8cfc\u5165\u3059\u308b<\/strong>\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001<strong>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3067\u306f\u7121\u6599\u3067\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u306e\u8cb8\u3057\u51fa\u3057\u3092\u884c\u3063\u3066\u304a\u308a\u307e\u3059\u3002<\/strong>\u30d5\u30ea\u30fc\u30e1\u30fc\u30eb\u306e\u30a2\u30c9\u30ec\u30b9(@gmail.com\u3084@yahoo.co.jp\u306a\u3069)\u3057\u304b\u6301\u3063\u3066\u304a\u3089\u305a\u3001<strong>\u624b\u8efd\u306b\u30e1\u30fc\u30eb\u914d\u4fe1\u7528\u306e\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u306e\u53d6\u5f97\u3057\u305f\u3044\u65b9\u306b\u306f\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/strong><\/p>\n<h2>Gmail \u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u89e3\u8aac\u30a6\u30a7\u30d3\u30ca\u30fc<\/h2>\n<p>Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u306e\u6982\u8981\u3068\u5bfe\u5fdc\u7b56\u306b\u3064\u3044\u3066\u30a6\u30a7\u30d3\u30ca\u30fc\u3067\u3082\u89e3\u8aac\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30a6\u30a7\u30d3\u30ca\u30fc\u3067\u306f<strong>Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u6982\u8981<\/strong>\u3084\u3001<strong>\u5177\u4f53\u7684\u306a\u89e3\u6c7a\u7b56\u306e\u89e3\u8aac<\/strong>\u3001\u305d\u306e\u4ed6\u306b\u3082<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u539f\u56e0\u3084\u4e00\u6589\u914d\u4fe1\u306e\u6ce8\u610f\u70b9\u306b\u3064\u3044\u3066\u3082\u7d39\u4ecb<\/strong>\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30a2\u30f3\u30b1\u30fc\u30c8\u56de\u7b54\u3067\u30bb\u30df\u30ca\u30fc\u8cc7\u6599\u306eDL\u3082\u53ef\u80fd\u3067\u3059\u306e\u3067\u3001\u305c\u3072\u304a\u6c17\u8efd\u306b\u304a\u7533\u8fbc\u307f\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/gmail-guideline-correspondence-seminar-2\"><img decoding=\"async\" class=\"alignnone wp-image-14431 size-full\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/02\/1200628_B-2-2.png\" alt=\"\" width=\"1200\" height=\"628\" \/><\/a><\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/blog\/download\/gmail-guideline-correspondence-seminar-2\" class=\"su-button su-button-style-default\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:12px\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color:#FFFFFF;padding:0px 30px;font-size:22px;line-height:44px;border-color:#d46863;border-radius:12px;text-shadow:none\"> \u3068\u308a\u3042\u3048\u305a\u7533\u3057\u8fbc\u3080<\/span><\/a><\/div>\n<h2>\u65b0\u3057\u3044Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3057\u3088\u3046<\/h2>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30c4\u30fc\u30eb\u306f\u6570\u591a\u304f\u306e\u4f01\u696d\u304b\u3089\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3059\u3079\u3066\u306e\u30c4\u30fc\u30eb\u304c\u4eca\u56de\u306e\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u7279\u306b\u7121\u6599\u3067\u5229\u7528\u3067\u304d\u308b\u6d77\u5916\u88fd\u306e\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3084\u3001\u53e4\u3044\u4ed5\u69d8\u306e\u307e\u307e\u66f4\u65b0\u3055\u308c\u3066\u3044\u306a\u3044\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u306e\u8a2d\u5b9a\u304c\u3067\u304d\u306a\u304b\u3063\u305f\u308a\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664\u6a5f\u80fd\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u308a\u3068\u3001\u77e5\u3089\u306c\u9593\u306b\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u9055\u53cd\u306e\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #ff0000;\"><strong>2025\u5e7411\u6708\u4ee5\u964d\u306e\u898f\u5236\u5f37\u5316\u306b\u3088\u308a\u3001\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30e1\u30fc\u30eb\u306f\u300c\u62d2\u5426\uff08\u4e0d\u9054\uff09\u300d\u3068\u306a\u308b\u30ea\u30b9\u30af\u304c\u6975\u3081\u3066\u9ad8\u304f\u306a\u308a\u307e\u3059<\/strong><\/span>\u3002\u6280\u8853\u7684\u306a\u8a2d\u5b9a\u306b\u4e0d\u5b89\u304c\u3042\u308b\u5834\u5408\u3084\u3001\u78ba\u5b9f\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306f\u3001\u3059\u3067\u306b\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u5bfe\u5fdc\u304c\u5b8c\u4e86\u3057\u3066\u3044\u308b\u56fd\u7523\u306e\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u4e57\u308a\u63db\u3048\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\u7528\u9014\u306b\u5408\u308f\u305b\u3066\u3001\u4ee5\u4e0b\u306e2\u3064\u306e\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u6700\u9069\u306a\u3082\u306e\u3092\u9078\u3073\u307e\u3057\u3087\u3046\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\/\"><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 size-full wp-image-15955\" \/><\/a><\/p>\n<p>\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u3084\u4e00\u6589\u9001\u4fe1\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306f\u3001\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\uff08blastmail\uff09\u300d\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u3001<span style=\"color: #ff0000;\"><strong>15\u5e74\u9023\u7d9a\u3067\u9867\u5ba2\u5c0e\u5165\u6570\u30b7\u30a7\u30a2No.1\u3092\u9054\u6210\u3057\u3066\u304a\u308a\u300127,000\u793e\u4ee5\u4e0a\u306e\u5c0e\u5165\u5b9f\u7e3e\u3092\u6301\u3064\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0<\/strong><\/span>\u3067\u3059\u3002\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u6c42\u3081\u3089\u308c\u308b\u4ee5\u4e0b\u306e\u8981\u4ef6\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\"><\/div>\n<ul>\n<li><strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff1a<\/strong>SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u3092\u30b5\u30dd\u30fc\u30c8<\/li>\n<li><strong>\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664\uff1a<\/strong>\u30e1\u30fc\u30eb\u672c\u6587\u306b\u767b\u9332\u89e3\u9664\u30ea\u30f3\u30af\u3092\u7c21\u5358\u306b\u633f\u5165\u53ef\u80fd<\/li>\n<li><strong>TLS\u63a5\u7d9a\uff1a<\/strong>\u5168\u30d7\u30e9\u30f3\u3067\u6a19\u6e96\u5bfe\u5fdc&#8221;]<\/li>\n<\/ul>\n<p>\u5c02\u9580\u7684\u306a\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u76f4\u611f\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u305f\u3081\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u62c5\u5f53\u8005\u3084\u5e83\u5831\u62c5\u5f53\u8005\u3067\u3082\u5b89\u5fc3\u3057\u3066\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u73fe\u5728\u306f\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3082\u5b9f\u65bd\u4e2d\u3067\u3059\u306e\u3067\u3001\u307e\u305a\u306f\u5b9f\u969b\u306e\u4f7f\u3044\u5fc3\u5730\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><strong>\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><\/strong><\/p>\n<h3>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc\u306a\u3089\u300cblastengine\uff08\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff09\u300d<\/h3>\n<p><a href=\"https:\/\/blastengine.jp\/\"><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 size-full wp-image-19575\" \/><\/a><\/p>\n<p>\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u81ea\u52d5\u901a\u77e5\u30e1\u30fc\u30eb\uff08\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\uff09\u3084\u3001API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc\u3092\u5229\u7528\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u300cblastengine\uff08\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff09\u300d\u304c\u6700\u9069\u3067\u3059\u3002<\/p>\n<p>\u30a8\u30f3\u30b8\u30cb\u30a2\u5411\u3051\u306b\u958b\u767a\u3055\u308c\u305f\u3053\u306e\u30b5\u30fc\u30d3\u30b9\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u9001\u4fe1\u3055\u308c\u308b\u30e1\u30fc\u30eb\u306e\u300c\u5230\u9054\u7387\u300d\u3092\u6700\u5927\u5316\u3059\u308b\u3053\u3068\u306b\u7279\u5316\u3057\u3066\u304a\u308a\u3001\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u6280\u8853\u7684\u306a\u5bfe\u5fdc\u3082\u4e07\u5168\u3067\u3059\u3002<\/p>\n<div class=\"list04\">&#8221;<\/div>\n<dt class=\"blog-faq__question\">Q\uff1a\u4eca\u56de\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u306f\u8ab0\u304c\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aGmail\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u3066\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u304c\u5bfe\u8c61\u3067\u3059\u304c\u3001\u7279\u306b<strong>1\u65e55,000\u4ef6\u4ee5\u4e0a\u9001\u4fe1\u3059\u308b\u5834\u5408\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u306e3\u70b9\u3059\u3079\u3066\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808<\/strong>\u3068\u306a\u308b\u306a\u3069\u3001\u3088\u308a\u53b3\u683c\u306a\u5bfe\u5fdc\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u5177\u4f53\u7684\u306b\u3069\u306e\u3088\u3046\u306a\u5bfe\u5fdc\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u306e\u8a2d\u5b9a\u3084TLS\u63a5\u7d9a\u306e\u5b9f\u65bd\u306b\u52a0\u3048\u3001<strong>\u30e1\u30fc\u30eb\u5185\u306b\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u767b\u9332\u89e3\u9664\u3067\u304d\u308b\u30ea\u30f3\u30af\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068<\/strong>\u3084\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u30920.3%\u4ee5\u4e0b\u306b\u6291\u3048\u308b\u5bfe\u7b56\u304c\u5fc5\u8981\u3067\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u3082\u3057\u5bfe\u5fdc\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001<strong>\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304c\u76f8\u624b\u306b\u5c4a\u304b\u306a\u304b\u3063\u305f\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027<\/strong>\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a1\u65e5\u306e\u9001\u4fe1\u6570\u304c5,000\u4ef6\u672a\u6e80\u306a\u3089\u5bfe\u5fdc\u306f\u4e0d\u8981\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u3044\u3044\u3048\u30015,000\u4ef6\u672a\u6e80\u3067\u3082SPF\u307e\u305f\u306fDKIM\u306e\u3044\u305a\u308c\u304b\u306e\u8a2d\u5b9a\u306f\u5fc5\u9808\u3067\u3042\u308a\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u9632\u6b62\u306e\u89b3\u70b9\u304b\u3089\u53ef\u80fd\u306a\u9650\u308a\u3059\u3079\u3066\u306e\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068<\/strong>\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/dd>\n[\/faq_list]\n<figure class=\"wp-block-image\"><a id=\"bottom_gmail_guideline_ken\" class=\"event_bnr\" href=\"https:\/\/blastmail.jp\/\"><img decoding=\"async\" class=\"wp-image-48\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/gmail\u8981\u4ef6\u5f37\u5316_\u30d0\u30ca\u30fc_1360x350-2.png\" \/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>2023\u5e7410\u6708\u3001Gmail\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u307e\u3057\u305f\u3002 Google\u516c\u5f0f\uff1a&#8230;<\/p>\n","protected":false},"author":8,"featured_media":14245,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-13799","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-spam"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/13799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/comments?post=13799"}],"version-history":[{"count":72,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/13799\/revisions"}],"predecessor-version":[{"id":20406,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/13799\/revisions\/20406"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media\/14245"}],"wp:attachment":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media?parent=13799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/categories?post=13799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/tags?post=13799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}