{"id":22981,"date":"2026-10-09T17:27:13","date_gmt":"2026-10-09T08:27:13","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=22981"},"modified":"2026-10-09T17:34:59","modified_gmt":"2026-10-09T08:34:59","slug":"idcf-cloud-outage-email","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/no-delivery\/idcf-cloud-outage-email","title":{"rendered":"IDCF\u30af\u30e9\u30a6\u30c9\u969c\u5bb3\u3067\u30e1\u30fc\u30eb\u306f\u3069\u3046\u306a\u308b\uff1f\u5f71\u97ff\u7bc4\u56f2\u3068\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u306e\u9001\u308a\u65b9\u3001\u4eca\u5f8c\u306e\u5099\u3048\u3092\u89e3\u8aac"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/10\/idcf-cloud-outage-email-bm.png\" alt=\"IDCF\u30af\u30e9\u30a6\u30c9\u969c\u5bb3\u3067\u30e1\u30fc\u30eb\u306f\u3069\u3046\u306a\u308b\uff1f\u5f71\u97ff\u7bc4\u56f2\u3068\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u306e\u9001\u308a\u65b9\u3001\u4eca\u5f8c\u306e\u5099\u3048\u3092\u89e3\u8aac\" width=\"1734\" height=\"907\" class=\"alignnone size-full wp-image-22989\" 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left\">IDC\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u304c\u7b2c1\u5831\uff08\u7b2c\u4e09\u8005\u304b\u3089\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\uff09\u3092\u516c\u8868<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u540c\u65e5 20\u664218\u5206<\/td>\n<td style=\"text-align: left\">\u7b2c2\u5831\u3067\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u653b\u6483\u3068\u5224\u660e\u3001\u5f71\u97ff\u306f495\u306e\u4f01\u696d\u30fb\u81ea\u6cbb\u4f53\u3068\u516c\u8868<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u7b2c2\u5831\u3067\u306f\u3001\u5bfe\u5fdc\u72b6\u6cc1\u3068\u3057\u3066\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u906e\u65ad\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u505c\u6b62\uff08\u5b8c\u4e86\uff09\u300d\u300c\u4fb5\u5165\u7d4c\u8def\u306e\u7279\u5b9a\u3068\u906e\u65ad\uff08\u5bfe\u5fdc\u4e2d\uff09\u300d\u300c\u305d\u306e\u4ed6\u30ea\u30fc\u30b8\u30e7\u30f3\u306e\u5b89\u5168\u6027\u306e\u78ba\u8a8d\uff08\u5bfe\u5fdc\u4e2d\uff09\u300d\u306e3\u70b9\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u6771\u65e5\u672c\u7b2c1\u30ea\u30fc\u30b8\u30e7\u30f3\u4ee5\u5916\u3067\u3082\u3001\u9867\u5ba2\u304c\u5916\u90e8\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3059\u308b\u7ba1\u7406\u30b3\u30f3\u30bd\u30fc\u30eb\u304c\u5b89\u5168\u78ba\u8a8d\u306e\u305f\u3081\u505c\u6b62\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>495\u306e\u4f01\u696d\u30fb\u81ea\u6cbb\u4f53\u306b\u5f71\u97ff\u304c\u6ce2\u53ca<\/h3>\n<p>\u5f71\u97ff\u306f\u3001IDCF\u30af\u30e9\u30a6\u30c9\u3092\u76f4\u63a5\u5951\u7d04\u3057\u3066\u3044\u308b\u4f01\u696d\u306b\u3068\u3069\u307e\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u4e0a\u3067\u52d5\u3044\u3066\u3044\u308bSaaS\u3084\u81ea\u6cbb\u4f53\u30b5\u30a4\u30c8\u3092\u5229\u7528\u3059\u308b\u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u306b\u307e\u3067\u5e83\u304c\u3063\u3066\u3044\u307e\u3059\u3002\u5831\u9053\u3084\u5404\u793e\u306e\u516c\u8868\u3067\u78ba\u8a8d\u3067\u304d\u308b\u4e3b\u306a\u5f71\u97ff\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div 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left\">\u81ea\u52d5\u9001\u4fe1\u30e1\u30fc\u30eb\u306e\u505c\u6b62<\/td>\n<td style=\"text-align: left\">\u767b\u9332\u30fb\u4e88\u7d04\u30fb\u6ce8\u6587\u78ba\u8a8d\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044<\/td>\n<td style=\"text-align: left\">\u624b\u7d9a\u304d\u306e\u6210\u5426\u304c\u5206\u304b\u3089\u305a\u4e0d\u5b89\u306b\u306a\u308b<\/td>\n<td style=\"text-align: left\">\u969c\u5bb3\u4e2d\u306e\u624b\u7d9a\u304d\u306e\u6271\u3044\u3092\u544a\u77e5<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u5229\u7528SaaS\u306e\u30e1\u30fc\u30eb\u6a5f\u80fd\u505c\u6b62<\/td>\n<td style=\"text-align: left\">SaaS\u7d4c\u7531\u306e\u914d\u4fe1\u304c\u6b62\u307e\u308b<\/td>\n<td style=\"text-align: left\">\u5b9a\u671f\u7684\u306a\u6848\u5185\u304c\u5c4a\u304b\u306a\u3044<\/td>\n<td style=\"text-align: left\">SaaS\u4e8b\u696d\u8005\u306e\u767a\u8868\u3092\u78ba\u8a8d\u3057\u3001\u9867\u5ba2\u3078\u8aac\u660e<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u544a\u77e5\u624b\u6bb5\u305d\u306e\u3082\u306e\u306e\u505c\u6b62<\/td>\n<td style=\"text-align: left\">\u304a\u77e5\u3089\u305b\u30da\u30fc\u30b8\u3082\u30e1\u30fc\u30eb\u3082\u51fa\u305b\u306a\u3044<\/td>\n<td style=\"text-align: left\">\u969c\u5bb3\u306e\u767a\u751f\u81ea\u4f53\u3092\u77e5\u3089\u3055\u308c\u306a\u3044<\/td>\n<td style=\"text-align: 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class=\"list04\">\n<ul>\n<li>\u4ef6\u540d\u306b\u300c\u7b2c2\u5831\u300d\u300c\u5fa9\u65e7\u306e\u304a\u77e5\u3089\u305b\u300d\u306a\u3069\u3001\u4f55\u5831\u76ee\u304b\u304c\u5206\u304b\u308b\u8868\u8a18\u3092\u5165\u308c\u308b<\/li>\n<li>\u524d\u56de\u304b\u3089\u306e\u5909\u66f4\u70b9\u3092\u5192\u982d\u306b\u66f8\u304f<\/li>\n<li>\u969c\u5bb3\u4e2d\u306b\u884c\u308f\u308c\u305f\u624b\u7d9a\u304d\uff08\u4e88\u7d04\u30fb\u6ce8\u6587\u30fb\u7533\u8fbc\uff09\u306e\u6271\u3044\u3092\u660e\u8a18\u3059\u308b<\/li>\n<li>\u500b\u4eba\u60c5\u5831\u3078\u306e\u5f71\u97ff\u306f\u3001\u78ba\u8a8d\u3067\u304d\u305f\u7bc4\u56f2\u3060\u3051\u3092\u8a18\u8f09\u3059\u308b<\/li>\n<li>\u554f\u3044\u5408\u308f\u305b\u5148\u3068\u53d7\u4ed8\u6642\u9593\u3092\u6bce\u56de\u8a18\u8f09\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u5fa9\u65e7\u5831\u544a\u306e\u4ef6\u540d\u4f8b\u306f\u300c\u3010\u5fa9\u65e7\u306e\u304a\u77e5\u3089\u305b\u3011\u3007\u3007\u30b5\u30fc\u30d3\u30b9\u306f10\u6708\u3007\u65e5\u3007\u6642\u306b\u5fa9\u65e7\u3044\u305f\u3057\u307e\u3057\u305f\u300d\u3067\u3059\u3002\u5fa9\u65e7\u5f8c\u306b\u518d\u5ea6\u30ed\u30b0\u30a4\u30f3\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u518d\u8a2d\u5b9a\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u305d\u306e\u624b\u9806\u3082\u3042\u308f\u305b\u3066\u6848\u5185\u3057\u307e\u3059\u3002<\/p>\n<h3>\u554f\u3044\u5408\u308f\u305b\u7a93\u53e3\u3068\u4ee3\u66ff\u624b\u6bb5\u306e\u6848\u5185<\/h3>\n<p>\u969c\u5bb3\u4e2d\u306f\u3001\u901a\u5e38\u306e\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u3082\u6b62\u307e\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u96fb\u8a71\u756a\u53f7\u3084\u516c\u5f0fSNS\u3001\u5e73\u6642\u304b\u3089\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u6848\u5185\u3057\u3066\u3044\u308b\u4e88\u5099\u306e\u9023\u7d61\u5148\u306a\u3069\u3001<strong>\u969c\u5bb3\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\u9023\u7d61\u624b\u6bb5\u3092\u6848\u5185\u3059\u308b<\/strong>\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4e88\u5099\u306e\u9023\u7d61\u5148\u306f\u3001\u969c\u5bb3\u304c\u8d77\u304d\u3066\u304b\u3089\u65b0\u305f\u306b\u7528\u610f\u3059\u308b\u3068\u53d7\u4fe1\u8005\u304c\u672c\u7269\u304b\u5224\u65ad\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u4e8b\u524d\u306b\u544a\u77e5\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<p>\u8328\u57ce\u770c\u3067\u306f\u3001\u7533\u8acb\u66f8\u985e\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u304c\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u305f\u3081\u3001\u96fb\u8a71\u3067\u306e\u500b\u5225\u5bfe\u5fdc\u3092\u6848\u5185\u3057\u3066\u3044\u307e\u3059\u3002\u4ee3\u66ff\u624b\u6bb5\u306f\u3001\u5e73\u6642\u306b\u6c7a\u3081\u3066\u304a\u304b\u306a\u3051\u308c\u3070\u3001\u969c\u5bb3\u6642\u306b\u3059\u3050\u306b\u306f\u7528\u610f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>\u969c\u5bb3\u306b\u4fbf\u4e57\u3057\u305f\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u30fb\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306b\u6ce8\u610f<\/h2>\n<p>\u5927\u898f\u6a21\u969c\u5bb3\u3084\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u304c\u5831\u3058\u3089\u308c\u305f\u76f4\u5f8c\u306f\u3001\u305d\u306e\u8a71\u984c\u306b\u4fbf\u4e57\u3057\u305f\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u304c\u51fa\u56de\u308a\u3084\u3059\u3044\u6642\u671f\u3067\u3059\u3002<\/p>\n<h3>\u4fbf\u4e57\u578b\u30e1\u30fc\u30eb\u306e\u3088\u304f\u3042\u308b\u624b\u53e3<\/h3>\n<p>\u5927\u304d\u306a\u30cb\u30e5\u30fc\u30b9\u306b\u4fbf\u4e57\u3059\u308b\u4e0d\u5be9\u30e1\u30fc\u30eb\u306b\u306f\u3001\u4e00\u822c\u7684\u306b\u6b21\u306e\u3088\u3046\u306a\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u300c\u969c\u5bb3\u306e\u5f71\u97ff\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u518d\u8a8d\u8a3c\u304c\u5fc5\u8981\u3067\u3059\u300d\u3068\u3057\u3066\u30ed\u30b0\u30a4\u30f3\u30da\u30fc\u30b8\u3078\u8a98\u5c0e\u3059\u308b<\/li>\n<li>\u300c\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u305f\u3081\u300d\u3068\u3057\u3066\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u5951\u7d04\u60c5\u5831\u306e\u5165\u529b\u3092\u6c42\u3081\u308b<\/li>\n<li>\u300c\u88dc\u511f\u624b\u7d9a\u304d\u300d\u300c\u8fd4\u91d1\u624b\u7d9a\u304d\u300d\u3092\u3046\u305f\u3044\u3001\u500b\u4eba\u60c5\u5831\u3084\u6c7a\u6e08\u60c5\u5831\u3092\u5165\u529b\u3055\u305b\u308b<\/li>\n<li>\u5b9f\u5728\u3059\u308b\u4e8b\u696d\u8005\u540d\u3084\u30b5\u30fc\u30d3\u30b9\u540d\u3092\u5dee\u51fa\u4eba\u540d\u306b\u4f7f\u3046<\/li>\n<\/ul>\n<\/div>\n<p>\u4eca\u56de\u306e\u969c\u5bb3\u306b\u95a2\u3057\u3066\u7279\u5b9a\u306e\u4fbf\u4e57\u30e1\u30fc\u30eb\u304c\u78ba\u8a8d\u3055\u308c\u305f\u3068\u3044\u3046\u516c\u5f0f\u767a\u8868\u306f\u30012026\u5e7410\u67088\u65e5\u6642\u70b9\u3067\u306f\u898b\u5f53\u305f\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001<strong>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528\u8005\u306f\u300c\u672c\u7269\u306e\u969c\u5bb3\u9023\u7d61\u300d\u3092\u5f85\u3063\u3066\u3044\u308b\u72b6\u614b<\/strong>\u306b\u3042\u308a\u3001\u507d\u306e\u9023\u7d61\u3092\u4fe1\u3058\u3084\u3059\u3044\u5fc3\u7406\u72b6\u614b\u306b\u3042\u308b\u3053\u3068\u306f\u610f\u8b58\u3057\u3066\u304a\u304f\u3079\u304d\u3067\u3059\u3002<\/p>\n<h3>\u53d7\u4fe1\u5074\u306e\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8<\/h3>\n<p>\u969c\u5bb3\u306b\u95a2\u3059\u308b\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u3063\u305f\u3089\u3001\u30e1\u30fc\u30eb\u5185\u306e\u30ea\u30f3\u30af\u3092\u3059\u3050\u306b\u30af\u30ea\u30c3\u30af\u305b\u305a\u3001\u6b21\u306e\u70b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u5dee\u51fa\u4eba\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u3001\u666e\u6bb5\u306e\u9023\u7d61\u3068\u540c\u3058\u304b\uff081\u6587\u5b57\u9055\u3044\u306a\u3069\u306e\u4f3c\u305f\u30c9\u30e1\u30a4\u30f3\u306b\u3082\u6ce8\u610f\uff09<\/li>\n<li>\u516c\u5f0f\u30b5\u30a4\u30c8\u3084IDC\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u306e\u767a\u8868\u3068\u5185\u5bb9\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b<\/li>\n<li>\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u6c7a\u6e08\u60c5\u5831\u306e\u5165\u529b\u3092\u6025\u304c\u305b\u3066\u3044\u306a\u3044\u304b<\/li>\n<li>\u4e0d\u5b89\u306a\u5834\u5408\u306f\u3001\u30e1\u30fc\u30eb\u5185\u306e\u30ea\u30f3\u30af\u3067\u306f\u306a\u304f\u3001\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3084\u666e\u6bb5\u4f7f\u3063\u3066\u3044\u308b\u516c\u5f0f\u30a2\u30d7\u30ea\u304b\u3089\u516c\u5f0f\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<h3>\u9001\u4fe1\u5074\u306fSPF\u30fbDKIM\u30fbDMARC\u3067\u6b63\u898f\u6027\u3092\u793a\u3059<\/h3>\n<p>\u969c\u5bb3\u544a\u77e5\u3092\u9001\u308b\u4f01\u696d\u5074\u306b\u3082\u3067\u304d\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u304c\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u306e\u8a2d\u5b9a\u3067\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u3068\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u304c\u300c\u3053\u306e\u30e1\u30fc\u30eb\u306f\u6b63\u898f\u306e\u9001\u4fe1\u5143\u304b\u3089\u9001\u3089\u308c\u305f\u3082\u306e\u304b\u300d\u3092\u5224\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002DMARC\u306e\u30dd\u30ea\u30b7\u30fc\u3092p=quarantine\u307e\u305f\u306fp=reject\u3067\u904b\u7528\u3059\u308c\u3070\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u8a50\u79f0\u3057\u305f\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u8005\u306b\u5c4a\u304d\u306b\u304f\u304f\u306a\u308a\u307e\u3059\uff08p=none\u306f\u76e3\u8996\u306e\u307f\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306f\u6b62\u307e\u308a\u307e\u305b\u3093\uff09\u3002<\/p>\n<p>\u6ce8\u610f\u3057\u305f\u3044\u306e\u306f\u3001\u969c\u5bb3\u6642\u306b<strong>\u6025\u3054\u3057\u3089\u3048\u306e\u5225\u30b5\u30fc\u30d0\u30fc\u3084\u500b\u4eba\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u544a\u77e5\u3092\u9001\u308b\u3068\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u308b<\/strong>\u304a\u305d\u308c\u304c\u3042\u308b\u70b9\u3067\u3059\u3002\u4ee3\u66ff\u306e\u9001\u4fe1\u624b\u6bb5\u306f\u3001\u5e73\u6642\u306e\u3046\u3061\u306b\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u6e08\u307e\u305b\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306bDMARC\u3092p=quarantine\u3084p=reject\u3067\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u672a\u767b\u9332\u306e\u9001\u4fe1\u5143\u304b\u3089\u9001\u3063\u305f\u544a\u77e5\u30e1\u30fc\u30eb\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u6271\u3044\u3084\u53d7\u4fe1\u62d2\u5426\u306b\u306a\u308a\u307e\u3059\u3002\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u969b\u306f\u3001SPF\u306einclude\u8ffd\u52a0\u3067DNS\u53c2\u7167\u56de\u6570\u306e\u4e0a\u9650\uff0810\u56de\uff09\u3092\u8d85\u3048\u306a\u3044\u3053\u3068\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u306eDKIM\u7f72\u540d\u306b\u3088\u3063\u3066DMARC\u306e\u6574\u5408\uff08\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff09\u304c\u53d6\u308c\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u30af\u30e9\u30a6\u30c9\u969c\u5bb3\u306b\u5099\u3048\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u4f53\u5236\u306e\u898b\u76f4\u3057\u30dd\u30a4\u30f3\u30c8<\/h2>\n<p>\u4eca\u56de\u306e\u969c\u5bb3\u304c\u793a\u3057\u305f\u306e\u306f\u3001\u300c\u30af\u30e9\u30a6\u30c9\u3060\u304b\u3089\u5b89\u5168\u300d\u3067\u306f\u306a\u304f\u3001\u300c1\u3064\u306e\u57fa\u76e4\u306b\u3059\u3079\u3066\u3092\u8f09\u305b\u308b\u3053\u3068\u306e\u30ea\u30b9\u30af\u300d\u3067\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u89b3\u70b9\u304b\u3089\u3001\u5e73\u6642\u306b\u898b\u76f4\u3057\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u9001\u4fe1\u57fa\u76e4\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u57fa\u76e4\u3068\u5206\u3051\u308b<\/h3>\n<p>\u6700\u3082\u52b9\u679c\u304c\u5927\u304d\u3044\u306e\u306f\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4ed5\u7d44\u307f\u3092\u81ea\u793e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u540c\u3058\u30b5\u30fc\u30d0\u30fc\u306b\u7f6e\u304b\u306a\u3044\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u9867\u5ba2\u30ea\u30b9\u30c8\u3092\u767b\u9332\u3057\u3066\u304a\u3051\u3070\u3001\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304c\u505c\u6b62\u3057\u3066\u3082\u3001\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u544a\u77e5\u30e1\u30fc\u30eb\u3092\u9001\u308c\u307e\u3059\u3002\u306a\u304a\u3001SMTP\u30ea\u30ec\u30fc\u3084API\u578b\u306e\u30b5\u30fc\u30d3\u30b9\u306f\u3001\u9001\u4fe1\u3092\u6307\u793a\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u5074\u304c\u52d5\u3044\u3066\u3044\u308b\u3053\u3068\u304c\u524d\u63d0\u3067\u3059\u3002\u969c\u5bb3\u544a\u77e5\u306b\u4f7f\u3046\u5834\u5408\u306f\u3001\u672c\u756a\u3068\u306f\u5225\u306e\u74b0\u5883\u304b\u3089\u9001\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<strong>\u969c\u5bb3\u544a\u77e5\u3092\u51fa\u3059\u624b\u6bb5\u304c\u3001\u969c\u5bb3\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\u5834\u6240\u306b\u3042\u308b<\/strong>\u3053\u3068\u3002\u3053\u308c\u304c\u4e8b\u696d\u7d99\u7d9a\u306e\u89b3\u70b9\u3067\u6700\u3082\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<h3>\u9023\u7d61\u5148\u30ea\u30b9\u30c8\u3092\u5225\u7cfb\u7d71\u3067\u3082\u4fdd\u6301\u3059\u308b<\/h3>\n<p>\u30e1\u30fc\u30eb\u3092\u9001\u308b\u4ed5\u7d44\u307f\u304c\u3042\u3063\u3066\u3082\u3001\u5b9b\u5148\u30ea\u30b9\u30c8\u304c\u505c\u6b62\u3057\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u4e2d\u306b\u3042\u308c\u3070\u9001\u308c\u307e\u305b\u3093\u3002\u4e3b\u8981\u306a\u9867\u5ba2\u3084\u53d6\u5f15\u5148\u306e\u9023\u7d61\u5148\u306f\u3001\u672c\u756a\u30b7\u30b9\u30c6\u30e0\u3068\u306f\u5225\u306e\u5834\u6240\u3067\u3082\u7ba1\u7406\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u9023\u7d61\u5148\u30ea\u30b9\u30c8\u306f\u500b\u4eba\u60c5\u5831\u3067\u3059\u3002\u4fdd\u7ba1\u5834\u6240\u3092\u5897\u3084\u3059\u307b\u3069\u6f0f\u3048\u3044\u30ea\u30b9\u30af\u3082\u5897\u3048\u308b\u305f\u3081\u3001\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u306e\u7ba1\u7406\u3001\u66f4\u65b0\u983b\u5ea6\u306e\u30eb\u30fc\u30eb\u5316\u3001\u4e0d\u8981\u306b\u306a\u3063\u305f\u30c7\u30fc\u30bf\u306e\u524a\u9664\u306a\u3069\u3092\u3042\u308f\u305b\u3066\u6c7a\u3081\u3066\u304a\u304d\u307e\u3059\u3002\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u306b\u9867\u5ba2\u30ea\u30b9\u30c8\u3092\u767b\u9332\u3059\u308b\u5834\u5408\u306f\u3001\u500b\u4eba\u60c5\u5831\u4fdd\u8b77\u6cd5\u4e0a\u306e\u59d4\u8a17\u306b\u3042\u305f\u308b\u305f\u3081\u3001\u59d4\u8a17\u5148\u306e\u5b89\u5168\u7ba1\u7406\u4f53\u5236\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<h3>\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3068\u627f\u8a8d\u30d5\u30ed\u30fc\u3092\u6c7a\u3081\u3066\u304a\u304f<\/h3>\n<p>\u969c\u5bb3\u767a\u751f\u6642\u306f\u3001\u6587\u9762\u306e\u4f5c\u6210\u3068\u793e\u5185\u627f\u8a8d\u306b\u6642\u9593\u3092\u53d6\u3089\u308c\u304c\u3061\u3067\u3059\u3002\u7b2c1\u5831\u3001\u7d9a\u5831\u3001\u5fa9\u65e7\u5831\u544a\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u3042\u3089\u304b\u3058\u3081\u7528\u610f\u3057\u3001\u8ab0\u304c\u627f\u8a8d\u3057\u3066\u8ab0\u304c\u9001\u4fe1\u3059\u308b\u304b\u3092\u6c7a\u3081\u3066\u304a\u304f\u3060\u3051\u3067\u3001\u7b2c\u4e00\u5831\u307e\u3067\u306e\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u6df1\u591c\u3084\u4f11\u65e5\u306b\u969c\u5bb3\u304c\u8d77\u304d\u308b\u3053\u3068\u3082\u60f3\u5b9a\u3057\u3001\u627f\u8a8d\u8005\u304c\u4e0d\u5728\u306e\u3068\u304d\u306e\u4ee3\u884c\u30eb\u30fc\u30eb\u3082\u6c7a\u3081\u3066\u304a\u304d\u307e\u3059\u3002\u4eca\u56de\u306e\u969c\u5bb3\u3082\u3001\u767a\u751f\u306f\u5e73\u65e5\u306e\u5348\u524d3\u664240\u5206\u9803\u3067\u3057\u305f\u3002<\/p>\n<h3>\u5e74\u306b\u4e00\u5ea6\u306f\u969c\u5bb3\u544a\u77e5\u306e\u8a13\u7df4\u3092\u884c\u3046<\/h3>\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3084\u624b\u9806\u66f8\u306f\u3001\u4f7f\u308f\u306a\u3051\u308c\u3070\u5f62\u9ab8\u5316\u3057\u307e\u3059\u3002\u5e74\u306b\u4e00\u5ea6\u306f\u300c\u672c\u756a\u30b7\u30b9\u30c6\u30e0\u304c\u505c\u6b62\u3057\u305f\u300d\u3068\u3044\u3046\u60f3\u5b9a\u3067\u3001\u7b2c\u4e00\u5831\u3092\u793e\u5185\u5411\u3051\u306b\u5b9f\u969b\u306b\u914d\u4fe1\u3059\u308b\u8a13\u7df4\u3092\u884c\u3046\u3068\u3001\u624b\u9806\u306e\u629c\u3051\u6f0f\u308c\u304c\u898b\u3064\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u5e73\u6642\u306b\u78ba\u8a8d\u3057\u3066\u304a\u304d\u305f\u3044\u9805\u76ee\u3092\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table class=\"wp-table\">\n<thead>\n<tr>\n<th style=\"text-align: left\">\u30c1\u30a7\u30c3\u30af\u9805\u76ee<\/th>\n<th style=\"text-align: left\">\u78ba\u8a8d\u3059\u308b\u5185\u5bb9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left\">\u7a3c\u50cd\u57fa\u76e4\u306e\u628a\u63e1<\/td>\n<td style=\"text-align: left\">\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u3068\u4e3b\u8981SaaS\u304c\u3001\u3069\u306e\u30af\u30e9\u30a6\u30c9\u30fb\u30ea\u30fc\u30b8\u30e7\u30f3\u3067\u52d5\u3044\u3066\u3044\u308b\u304b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u9001\u4fe1\u624b\u6bb5\u306e\u5206\u96e2<\/td>\n<td style=\"text-align: left\">\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u3092\u3001\u672c\u756a\u30b7\u30b9\u30c6\u30e0\u3068\u5225\u7cfb\u7d71\u304b\u3089\u9001\u308c\u308b\u304b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u9023\u7d61\u5148\u30ea\u30b9\u30c8<\/td>\n<td style=\"text-align: left\">\u672c\u756a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u4ee5\u5916\u306b\u3082\u3001\u6700\u65b0\u306e\u9023\u7d61\u5148\u3092\u5b89\u5168\u306b\u4fdd\u7ba1\u3057\u3066\u3044\u308b\u304b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">DNS\u306e\u5206\u96e2<\/td>\n<td style=\"text-align: left\">\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u6a29\u5a01DNS\u304c\u3001\u672c\u756a\u30b7\u30b9\u30c6\u30e0\u3068\u5225\u306e\u4e8b\u696d\u8005\u30fb\u57fa\u76e4\u3067\u52d5\u3044\u3066\u3044\u308b\u304b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c<\/td>\n<td style=\"text-align: left\">\u4ee3\u66ff\u306e\u9001\u4fe1\u624b\u6bb5\u3067\u3082SPF\u30fbDKIM\u30fbDMARC\u304c\u901a\u308b\u304b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/td>\n<td style=\"text-align: left\">\u7b2c1\u5831\u30fb\u7d9a\u5831\u30fb\u5fa9\u65e7\u5831\u544a\u306e\u6587\u9762\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u304b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u627f\u8a8d\u30d5\u30ed\u30fc<\/td>\n<td style=\"text-align: left\">\u591c\u9593\u30fb\u4f11\u65e5\u3067\u3082\u3001\u81ea\u793e\u3067\u5b9a\u3081\u305f\u76ee\u6a19\u6642\u9593\u5185\u306b\u7b2c\u4e00\u5831\u3092\u51fa\u305b\u308b\u4f53\u5236\u304b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left\">\u4e8b\u696d\u8005\u304b\u3089\u306e\u901a\u77e5<\/td>\n<td style=\"text-align: left\">\u30af\u30e9\u30a6\u30c9\u4e8b\u696d\u8005\u306b\u767b\u9332\u3057\u305f\u901a\u77e5\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304c\u73fe\u5f79\u304b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>\u969c\u5bb3\u6642\u306e\u9867\u5ba2\u9023\u7d61\u306b\u5099\u3048\u308b\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h2>\n<p>\u3053\u3053\u307e\u3067\u898b\u3066\u304d\u305f\u3088\u3046\u306b\u3001\u969c\u5bb3\u6642\u306e\u9867\u5ba2\u9023\u7d61\u3067\u6700\u3082\u5927\u5207\u306a\u306e\u306f\u3001\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u304c\u6b62\u307e\u3063\u3066\u3082\u7b2c\u4e00\u5831\u3092\u51fa\u305b\u308b\u624b\u6bb5\u3092\u5225\u7cfb\u7d71\u3067\u6301\u3063\u3066\u304a\u304f\u3053\u3068\u3067\u3059\u3002\u305d\u306e\u6709\u529b\u306a\u9078\u629e\u80a2\u304c\u3001\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u983c\u3063\u3066\u3044\u308b\u3068\u3001\u30b7\u30b9\u30c6\u30e0\u969c\u5bb3\u3068\u30e1\u30fc\u30eb\u505c\u6b62\u304c\u540c\u6642\u306b\u8d77\u3053\u308a\u307e\u3059\u3002\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u9001\u4fe1\u57fa\u76e4\u306e\u5206\u96e2<\/strong>\uff1a\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3068\u306f\u5225\u306e\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u308c\u308b\u305f\u3081\u3001\u81ea\u793e\u5074\u306e\u969c\u5bb3\u6642\u3067\u3082\u544a\u77e5\u3092\u51fa\u305b\u308b<\/li>\n<li><strong>\u5bfe\u8c61\u8005\u3092\u7d5e\u3063\u305f\u914d\u4fe1<\/strong>\uff1a\u5f71\u97ff\u3092\u53d7\u3051\u305f\u9867\u5ba2\u3060\u3051\u306b\u30ea\u30b9\u30c8\u3092\u7d5e\u308a\u8fbc\u3093\u3067\u3001\u5fc5\u8981\u306a\u6848\u5185\u3092\u5c4a\u3051\u3089\u308c\u308b<\/li>\n<li><strong>\u9001\u4fe1\u72b6\u6cc1\u306e\u628a\u63e1<\/strong>\uff1a\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3084\u958b\u5c01\u72b6\u6cc1\uff08HTML\u30e1\u30fc\u30eb\u306e\u5834\u5408\uff09\u304b\u3089\u3001\u544a\u77e5\u306e\u5230\u9054\u30fb\u95b2\u89a7\u72b6\u6cc1\u306e\u76ee\u5b89\u3092\u628a\u63e1\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u969c\u5bb3\u544a\u77e5\u306f\u300c\u51fa\u305b\u308b\u3053\u3068\u300d\u3068\u300c\u5c4a\u304f\u3053\u3068\u300d\u306e\u4e21\u65b9\u304c\u305d\u308d\u3063\u3066\u521d\u3081\u3066\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u3002\u5e73\u6642\u306e\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u3068\u540c\u3058\u4ed5\u7d44\u307f\u3092\u969c\u5bb3\u544a\u77e5\u306b\u3082\u4f7f\u3048\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u3051\u3070\u3001\u3044\u3056\u3068\u3044\u3046\u3068\u304d\u306b\u614c\u3066\u305a\u306b\u6e08\u307f\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\u300116\u5e74\u9023\u7d9a\u3067\u5c0e\u5165\u793e\u6570\u30b7\u30a7\u30a2No.1\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u5c0e\u5165\u5b9f\u7e3e\u306f30,000\u793e\u4ee5\u4e0a\u3002\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u76f4\u611f\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u7ba1\u7406\u753b\u9762\u3067\u3001\u7dca\u6025\u6642\u306e\u544a\u77e5\u30e1\u30fc\u30eb\u3082\u4f5c\u6210\u30fb\u914d\u4fe1\u3057\u3084\u3059\u3044\u70b9\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u30ea\u30b9\u30c8\u914d\u4fe1\u30fb\u30d5\u30a3\u30eb\u30bf\u914d\u4fe1<\/strong>\uff1a\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528\u8005\u3060\u3051\u306b\u7d5e\u308a\u8fbc\u3093\u3067\u3001\u969c\u5bb3\u544a\u77e5\u3092\u5c4a\u3051\u3089\u308c\u308b<\/li>\n<li><strong>\u5b9b\u540d\u5dee\u3057\u8fbc\u307f\u9001\u4fe1<\/strong>\uff1a\u9867\u5ba2\u540d\u3092\u5dee\u3057\u8fbc\u3093\u3067\u3001\u4e00\u6589\u914d\u4fe1\u3067\u3082\u4e00\u4eba\u3072\u3068\u308a\u306b\u5b9b\u3066\u305f\u6848\u5185\u3068\u3057\u3066\u9001\u308c\u308b<\/li>\n<li><strong>\u914d\u4fe1\u627f\u8a8d\u6a5f\u80fd<\/strong>\uff1a\u914d\u4fe1\u524d\u306b\u627f\u8a8d\u8005\u306e\u30c1\u30a7\u30c3\u30af\u3092\u631f\u3081\u308b\u305f\u3081\u3001\u7dca\u6025\u6642\u306e\u8aa4\u9001\u4fe1\u30ea\u30b9\u30af\u3092\u6291\u3048\u3089\u308c\u308b<\/li>\n<li><strong>\u52b9\u679c\u6e2c\u5b9a<\/strong>\uff1a\u958b\u5c01\u7387\uff08HTML\u30e1\u30fc\u30eb\u306e\u5834\u5408\uff09\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u78ba\u8a8d\u3057\u3001\u544a\u77e5\u306e\u5230\u9054\u30fb\u95b2\u89a7\u72b6\u6cc1\u306e\u76ee\u5b89\u3092\u628a\u63e1\u3067\u304d\u308b<\/li>\n<li><strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u5bfe\u7b56\uff08SPF\/DKIM\uff09<\/strong>\uff1a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u5bfe\u5fdc\u3057\u3001\u544a\u77e5\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u308b\u30ea\u30b9\u30af\u3092\u6291\u3048\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u5e73\u6642\u306f\u30e1\u30eb\u30de\u30ac\u3084\u304a\u77e5\u3089\u305b\u306e\u914d\u4fe1\u306b\u4f7f\u3044\u3001\u969c\u5bb3\u6642\u306b\u306f\u9867\u5ba2\u3078\u306e\u544a\u77e5\u624b\u6bb5\u3068\u3057\u3066\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002\u6708\u984d4,000\u5186\u304b\u3089\u3068\u5c0e\u5165\u3057\u3084\u3059\u3044\u6599\u91d1\u3067\u3001\u7121\u6599\u304a\u8a66\u3057\u3082\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><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>\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><a href=\"https:\/\/blastmail.jp\/\"><\/a><\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastengine\u300d<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/10\/blastengine-top.png\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\" width=\"1607\" height=\"823\" class=\"alignnone size-full wp-image-22988\" \/><\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff08blastengine\uff09\u306f\u3001\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u3068SMTP\u30ea\u30ec\u30fc\u3084API\u3067\u9023\u643a\u3057\u3001\u4f1a\u54e1\u767b\u9332\u5b8c\u4e86\u30e1\u30fc\u30eb\u3084\u4e88\u7d04\u78ba\u8a8d\u30e1\u30fc\u30eb\u306a\u3069\u306e\u30b7\u30b9\u30c6\u30e0\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3067\u304d\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u904b\u7528\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306f\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u5074\u3067\u884c\u3046\u305f\u3081\u3001\u81ea\u793e\u3067\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u62b1\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SMTP\u30ea\u30ec\u30fc\u30fbAPI\u9023\u643a<\/strong>\uff1a\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u3068\u9023\u643a\u3057\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u5916\u90e8\u306e\u914d\u4fe1\u57fa\u76e4\u306b\u4efb\u305b\u3089\u308c\u308b<\/li>\n<li><strong>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u7ba1\u7406<\/strong>\uff1a\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u5074\u3067\u9001\u4fe1\u8005\u8a55\u4fa1\u3092\u7ba1\u7406\u3057\u3001\u5b89\u5b9a\u3057\u305f\u914d\u4fe1\u3092\u7dad\u6301<\/li>\n<li><strong>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc<\/strong>\uff1a\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u969c\u5bb3\u5fa9\u65e7\u5f8c\u306e\u904b\u7528\u8ca0\u8377\u3092\u8efd\u6e1b<\/li>\n<li><strong>SPF\/DKIM\/DMARC\u5bfe\u5fdc<\/strong>\uff1a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u3068\u8aa4\u8a8d\u3055\u308c\u308b\u30ea\u30b9\u30af\u3092\u6291\u3048\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3067\u904b\u7528\u3057\u3066\u3044\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u90e8\u5206\u3092\u5207\u308a\u51fa\u3057\u305f\u3044\u4f01\u696d\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u521d\u671f\u8cbb\u7528\u306f\u7121\u6599\u3067\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5165\u529b\u3060\u3051\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3092\u59cb\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastengine.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><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<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<h2>\u307e\u3068\u3081<\/h2>\n<p>2026\u5e7410\u67087\u65e5\u306b\u767a\u751f\u3057\u305fIDCF\u30af\u30e9\u30a6\u30c9\u306e\u969c\u5bb3\u306f\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u653b\u6483\u306b\u3088\u3063\u3066\u6771\u65e5\u672c\u7b2c1\u30ea\u30fc\u30b8\u30e7\u30f3\u304c\u505c\u6b62\u3057\u3001495\u306e\u4f01\u696d\u30fb\u81ea\u6cbb\u4f53\u306b\u5f71\u97ff\u304c\u5e83\u304c\u308a\u307e\u3057\u305f\u3002\u30e1\u30fc\u30eb\u3078\u306e\u5f71\u97ff\u306f\u3001\u81ea\u793e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u505c\u6b62\u3001\u81ea\u52d5\u9001\u4fe1\u30e1\u30fc\u30eb\u306e\u505c\u6b62\u3001\u5229\u7528SaaS\u306e\u30e1\u30fc\u30eb\u6a5f\u80fd\u505c\u6b62\u3001\u305d\u3057\u3066\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u305d\u306e\u3082\u306e\u304c\u9001\u308c\u306a\u304f\u306a\u308b\u554f\u984c\u306e4\u30d1\u30bf\u30fc\u30f3\u306b\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u4f01\u696d\u304c\u4eca\u3059\u3050\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u3001\u6b21\u306e3\u3064\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>IDC\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u304b\u3089\u306e\u500b\u5225\u9023\u7d61\u3068\u516c\u5f0f\u767a\u8868\u3092\u78ba\u8a8d\u3057\u3001\u81ea\u793e\u306e\u5f71\u97ff\u7bc4\u56f2\u3092\u7279\u5b9a\u3059\u308b<\/li>\n<li>\u78ba\u8a8d\u3067\u304d\u305f\u4e8b\u5b9f\u3060\u3051\u3067\u7b2c\u4e00\u5831\u3092\u51fa\u3057\u3001\u6b21\u56de\u306e\u6848\u5185\u4e88\u5b9a\u6642\u523b\u3092\u660e\u8a18\u3059\u308b<\/li>\n<li>\u969c\u5bb3\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\u9023\u7d61\u624b\u6bb5\u3092\u9867\u5ba2\u306b\u6848\u5185\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u305d\u3057\u3066\u3001\u4eca\u56de\u76f4\u63a5\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u304b\u3063\u305f\u4f01\u696d\u3082\u3001\u4ed6\u4eba\u4e8b\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u307e\u305a\u306f\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u3068\u4e3b\u8981SaaS\u306e\u7a3c\u50cd\u57fa\u76e4\u3092\u6d17\u3044\u51fa\u3057\u3001\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u3092\u5225\u7cfb\u7d71\u304b\u3089\u9001\u308c\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3068\u627f\u8a8d\u30d5\u30ed\u30fc\u3092\u7528\u610f\u3057\u3001\u9001\u4fe1\u57fa\u76e4\u3092\u5206\u96e2\u3057\u3066\u304a\u304f\u3053\u3068\u3002\u305d\u308c\u304c\u3001\u6b21\u306e\u969c\u5bb3\u3067\u9867\u5ba2\u306e\u4fe1\u983c\u3092\u5b88\u308b\u305f\u3081\u306e\u5099\u3048\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">IDCF\u30af\u30e9\u30a6\u30c9\u306e\u969c\u5bb3\u306f\u3044\u3064\u304b\u3089\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aIDC\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u306e\u516c\u5f0f\u767a\u8868\u306b\u3088\u308b\u3068\u30012026\u5e7410\u67087\u65e5\uff08\u6c34\uff09\u5348\u524d3\u664240\u5206\u9803\u304b\u3089\u6771\u65e5\u672c\u7b2c1\u30ea\u30fc\u30b8\u30e7\u30f3\u3067\u969c\u5bb3\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u65e520\u664218\u5206\u306e\u7b2c2\u5831\u3067\u3001\u539f\u56e0\u306f\u7b2c\u4e09\u8005\u304b\u3089\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u653b\u6483\u3068\u516c\u8868\u3055\u308c\u307e\u3057\u305f\u3002\u6700\u65b0\u306e\u72b6\u6cc1\u306fIDC\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304c\u505c\u6b62\u3057\u3066\u3044\u308b\u9593\u306b\u9001\u3089\u308c\u3066\u304d\u305f\u30e1\u30fc\u30eb\u306f\u6d88\u3048\u3066\u3057\u307e\u3044\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u3059\u3050\u306b\u6d88\u3048\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u9001\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306f\u518d\u9001\u3092\u8a66\u307f\u307e\u3059\u304c\u3001\u518d\u9001\u3092\u7d9a\u3051\u308b\u671f\u9593\u306f\u9001\u4fe1\u5074\u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u30011\u65e5\u7a0b\u5ea6\u3067\u6253\u3061\u5207\u3089\u308c\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u505c\u6b62\u304c\u9577\u5f15\u304f\u307b\u3069\u3001\u9001\u308a\u4e3b\u306b\u30a8\u30e9\u30fc\u3068\u3057\u3066\u623b\u308b\u30e1\u30fc\u30eb\u304c\u5897\u3048\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u306f\u3044\u3064\u9001\u308b\u3079\u304d\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u539f\u56e0\u3084\u5fa9\u65e7\u898b\u8fbc\u307f\u304c\u5206\u304b\u3089\u306a\u304f\u3066\u3082\u3001\u5f71\u97ff\u3092\u78ba\u8a8d\u3067\u304d\u305f\u6642\u70b9\u3067\u7b2c\u4e00\u5831\u3092\u9001\u308b\u306e\u304c\u57fa\u672c\u3067\u3059\u3002\u300c\u4f55\u304c\u4f7f\u3048\u306a\u3044\u304b\u300d\u300c\u3044\u3064\u304b\u3089\u304b\u300d\u300c\u6b21\u306e\u6848\u5185\u306f\u3044\u3064\u304b\u300d\u306e3\u70b9\u3092\u4f1d\u3048\u308c\u3070\u3001\u9867\u5ba2\u306e\u4e0d\u5b89\u3068\u554f\u3044\u5408\u308f\u305b\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u969c\u5bb3\u306b\u95a2\u3059\u308b\u30e1\u30fc\u30eb\u304c\u5c4a\u304d\u307e\u3057\u305f\u304c\u3001\u672c\u7269\u304b\u5206\u304b\u308a\u307e\u305b\u3093\u3002<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u30e1\u30fc\u30eb\u5185\u306e\u30ea\u30f3\u30af\u306f\u30af\u30ea\u30c3\u30af\u305b\u305a\u3001\u5dee\u51fa\u4eba\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u666e\u6bb5\u306e\u9023\u7d61\u3068\u540c\u3058\u304b\uff08\u4f3c\u305f\u30c9\u30e1\u30a4\u30f3\u3067\u306a\u3044\u304b\uff09\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e0d\u5b89\u306a\u5834\u5408\u306f\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3084\u666e\u6bb5\u4f7f\u3063\u3066\u3044\u308b\u516c\u5f0f\u30a2\u30d7\u30ea\u304b\u3089\u516c\u5f0f\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001\u767a\u8868\u5185\u5bb9\u3068\u7167\u3089\u3057\u5408\u308f\u305b\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u6c7a\u6e08\u60c5\u5831\u306e\u5165\u529b\u3092\u6025\u304c\u305b\u308b\u30e1\u30fc\u30eb\u306b\u306f\u7279\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304c\u6b62\u307e\u3063\u3066\u3082\u969c\u5bb3\u544a\u77e5\u30e1\u30fc\u30eb\u3092\u9001\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u306b\u306f\uff1f<\/dt><dd 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