{"id":6525,"date":"2021-01-29T17:08:02","date_gmt":"2021-01-29T08:08:02","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=6525"},"modified":"2025-12-12T11:25:02","modified_gmt":"2025-12-12T02:25:02","slug":"deliverability","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/mail-delivery\/deliverability","title":{"rendered":"\u30e1\u30fc\u30eb\u914d\u4fe1\u30fb\u30e1\u30eb\u30de\u30ac\u306e\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\u306b\u306f\uff1f\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\uff15\u3064\u306e\u5bfe\u7b56\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff01"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-6526\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2021\/01\/mail-delivery-deliverability.jpg\" alt=\"\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\u306b\u306f\uff1f\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\uff15\u3064\u306e\u5bfe\u7b56\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff01\" width=\"680\" height=\"383\" \/><\/p>\n<p>\u6642\u9593\u3092\u304b\u3051\u3066\u4f5c\u6210\u3057\u305f\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u3001\u4f1a\u54e1\u30ea\u30b9\u30c8\u5168\u54e1\u306b\u3057\u3063\u304b\u308a\u5c4a\u3044\u3066\u3044\u308b\u3068\u81ea\u4fe1\u3092\u6301\u3063\u3066\u8a00\u3048\u307e\u3059\u304b\uff1f \u5b9f\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u3044\u305f\u3068\u3057\u3066\u3082\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3084\u914d\u4fe1\u65b9\u6cd5\u304c\u9069\u5207\u3067\u306a\u3051\u308c\u3070\u3001\u591a\u304f\u306e\u30e1\u30fc\u30eb\u304c\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u300d\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u305f\u308a\u3001\u305d\u3082\u305d\u3082\u76f8\u624b\u306e\u30b5\u30fc\u30d0\u30fc\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u308a\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u8fd1\u5e74\u3001Gmail\u3084Yahoo!\u30e1\u30fc\u30eb\u306a\u3069\u306e\u4e3b\u8981\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u3068\u3057\u3066\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u3092\u5927\u5e45\u306b\u5f15\u304d\u4e0a\u3052\u307e\u3057\u305f\u3002\u305d\u306e\u305f\u3081\u300c\u3053\u308c\u307e\u3067\u306f\u5c4a\u3044\u3066\u3044\u305f\u306e\u306b\u3001\u6025\u306b\u5c4a\u304b\u306a\u304f\u306a\u3063\u305f\u300d\u3068\u3044\u3046\u30b1\u30fc\u30b9\u304c\u6025\u5897\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30e1\u30fc\u30eb\u3084\u30e1\u30eb\u30de\u30ac\u306e\u5230\u9054\u7387\u304c\u4e0b\u304c\u308b\u4e3b\u306a\u539f\u56e0\u3092\u89e3\u8aac\u3059\u308b\u3068\u3068\u3082\u306b\u3001\u6700\u65b0\u306e\u300cGmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u300d\u306b\u3082\u5bfe\u5fdc\u3057\u305f\u3001\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u6539\u5584\u65bd\u7b56\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u5230\u9054\u7387\u3092\u6539\u5584\u3057\u58f2\u4e0a\u30a2\u30c3\u30d7\u306b\u3064\u306a\u3052\u308b\u305f\u3081\u306b\u3001\u305c\u3072\u73fe\u72b6\u306e\u914d\u4fe1\u74b0\u5883\u3092\u898b\u76f4\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/01\/bm_banner_big_mailsystem_1200x628.png\" alt=\"blastmail\u306e\u30d0\u30ca\u30fc\" width=\"1200\" height=\"629\" class=\"alignnone size-full wp-image-19829\" \/><\/a><\/p>\n<h2>\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5230\u9054\u7387\u3068\u306f\uff1f<\/h2>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u304a\u3051\u308b\u5230\u9054\u7387\u3068\u306f\u3001<strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u7dcf\u6570\u306e\u3046\u3061\u3001\u3069\u306e\u304f\u3089\u3044\u30e1\u30fc\u30eb\u304c\u914d\u4fe1\u6210\u529f\u3057\u305f\u304b\u3092\u8868\u3059\u6307\u6a19<\/strong>\u3067\u3059\u3002\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u3044\u305f\u304b\u3069\u3046\u304b\u306a\u306e\u3067\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u3044\u305f\u30e1\u30fc\u30eb\u306f\u5230\u9054\u306b\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u5230\u9054\u7387\u304c\u4f4e\u3044\u307e\u307e\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3063\u3066\u3044\u308b\u3068\u9867\u5ba2\u306b\u60c5\u5831\u304c\u5c4a\u3051\u3089\u308c\u305a\u3001\u696d<strong>\u52d9\u306b\u652f\u969c\u304c\u51fa\u308b<\/strong>\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002\u6700\u60aa\u306e\u5834\u5408\u3001<strong>\u30af\u30ec\u30fc\u30e0\u306b\u7e4b\u304c\u308b\u53ef\u80fd\u6027\u3082\u3042\u308b<\/strong>\u306e\u3067\u3001\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u969b\u306f\u5230\u9054\u7387\u3082\u5fc5\u305a\u78ba\u8a8d\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u914d\u4fe1\u6210\u529f\u7387\u3068\u306f\u4f55\u304c\u9055\u3046\u306e\u304b\uff1f<\/h3>\n<p>\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306b\u306f\u5230\u9054\u7387\u3068\u540c\u3058\u3088\u3046\u306a\u6307\u6a19\u306b<strong>\u914d\u4fe1\u6210\u529f\u7387<\/strong>\u304c\u3042\u308a\u307e\u3059\u304c\u53b3\u5bc6\u306b\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u5230\u9054\u7387<\/strong>\uff1d\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u3044\u305f\u78ba\u7387<\/li>\n<li><strong>\u914d\u4fe1\u6210\u529f\u7387<\/strong>=\u30b5\u30fc\u30d0\u30fc\u306b\u53d7\u3051\u5165\u308c\u3089\u308c\u305f\u78ba\u7387 \u3000<\/div><\/li>\n<\/ul>\n<p>\u30e1\u30fc\u30eb\u306f\u30b5\u30fc\u30d0\u30fc\u3092\u7d4c\u7531\u3057\u3066\u304b\u3089\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u304f\u306e\u3067\u3001\u57fa\u672c\u7684\u306b\u306f<strong>\u914d\u4fe1\u6210\u529f\u7387\u3088\u308a\u3082\u5230\u9054\u7387\u306e\u65b9\u304c\u4f4e\u304f<\/strong>\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u914d\u4fe1\u6210\u529f\u7387\u3082\u5927\u4e8b\u306a\u6307\u6a19\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001<strong>\u6700\u3082\u91cd\u8981\u306a\u6307\u6a19\u306f\u5230\u9054\u7387\u3067\u3042\u308b<\/strong>\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5230\u9054\u7387\u304c\u4f4e\u3044\u307e\u307e\u653e\u7f6e\u3059\u308b\u3068\u3001\u305d\u306e\u307e\u307e\u5230\u9054\u7387\u304c\u4e0b\u304c\u3063\u3066\u3044\u304f\u3060\u3051\u3067\u306a\u304f\u3001\u305b\u3063\u304b\u304f\u624b\u306b\u5165\u308c\u305f\u30ea\u30b9\u30c8\u306e\u6709\u52b9\u6027\u3082\u4e0b\u304c\u3063\u3066\u3057\u307e\u3044\u3001\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306e\u6210\u679c\u306b\u5927\u304d\u306a\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3057\u307e\u3059\u3002\u5341\u5206\u6ce8\u610f\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n<h2>\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u306e\u5230\u9054\u7387\u306e\u76ee\u5b89\u306f\u3069\u308c\u304f\u3089\u3044\uff1f<\/h2>\n<p>\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u306e<strong>\u5230\u9054\u7387\u306e\u76ee\u5b89\u306f90\uff05<\/strong>\u3067\u3059\u3002\u5230\u9054\u7387\u306e\u8a08\u7b97\u65b9\u6cd5\u306f\u4e0b\u8a18\u306e\u3068\u304a\u308a\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong><div class =\"simplemail\"><p class =\"simplemail-body-content\">\u5230\u9054\u6570 \u00f7 \u914d\u4fe1\u7dcf\u6570 \u00d7 100 = \u5230\u9054\u7387<\/p><\/div><\/strong><\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\uff11\u4e07\u901a\u3067\u3001\u305d\u306e\u3046\u3061\u5c4a\u3044\u305f\u30e1\u30fc\u30eb\u304c9,000\u901a\u306a\u3089\u3001\u5230\u9054\u7387\u306f90%\u3068\u306a\u308a\u307e\u3059\u3002\u3069\u3093\u306a\u306b\u512a\u308c\u3066\u3044\u308b\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3082\u96e3\u3057\u3044\u3053\u3068\u306a\u306e\u3067\u3001\u73fe\u5b9f\u7684\u306a\u30e9\u30a4\u30f3\u3068\u3057\u306690\uff05\u3092\u76ee\u6307\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u5230\u9054\u7387\u304c90%\u3092\u5207\u308b\u3088\u3046\u306a\u5834\u5408\u306f\u4f55\u304b\u3057\u3089\u306e\u5bfe\u7b56\u304c\u5fc5\u8981<\/strong>\u3068\u8003\u3048\u3066\u826f\u3044\u3067\u3057\u3087\u3046\u3002\u4f55\u304b\u3057\u3089\u306e\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u3066\u3044\u308b\u304b\u8abf\u3079\u305f\u308a\u3001\u4ed6\u306e\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u3092\u8996\u91ce\u306b\u5165\u308c\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\u5230\u9054\u3059\u308b\u57fa\u6e96<\/h3>\n<p>\u7d50\u8ad6\u304b\u3089\u3044\u3046\u3068\u30e1\u30fc\u30eb\u914d\u4fe1\u306f\u3001<strong>ISP\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\uff09\u306b\u3088\u308b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u30af\u30ea\u30a2\u3057\u305f\u3082\u306e\u3060\u3051\u304c\u8cfc\u8aad\u8005\u306e\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u304f<\/strong>\u4ed5\u7d44\u307f\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u30af\u30ea\u30a2\u3067\u304d\u306a\u304b\u3063\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u306f\u3059\u3079\u3066\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u3068\u5224\u5b9a\u3055\u308c\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u304f\u304b\u3001\u53d7\u4fe1\u304c\u62d2\u5426\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u53b3\u5bc6\u306a\u57fa\u6e96\u306f\u958b\u793a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u3055\u308c\u3066\u3044\u308b\u304b\u3084\u3001\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u696d\u8005\u304c\u884c\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3057\u3066\u3044\u306a\u3044\u304b\u306a\u3069\u304c\u95a2\u4fc2\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3089\u69d8\u3005\u306a\u57fa\u6e96\u304b\u3089ISP\u306f\u9001\u4fe1\u5143\u306e<strong>\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\uff08\u8a55\u4fa1\uff09<\/strong>\u3092\u6c7a\u3081\u3001\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u8005\u306b\u5c4a\u3051\u308b\u304b\u3001\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u5224\u5b9a\u3059\u308b\u304b\u3001\u53d7\u4fe1\u62d2\u5426\u3059\u308b\u304b\u3092\u9078\u629e\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n<h2>\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\uff15\u3064\u306e\u5bfe\u7b56<\/h2>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\u306b\u306f\u3001\u4ee5\u4e0b\uff15\u3064\u306e\u5bfe\u7b56\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\uff09\u3092\u5fb9\u5e95\u3059\u308b<\/li>\n<li>\u540c\u4e00IP\u304b\u3089\u306e\u5927\u91cf\u914d\u4fe1\u306f\u907f\u3051\u308b<\/li>\n<li>\u914d\u4fe1\u30a8\u30e9\u30fc\u306b\u306a\u308b\u30ea\u30b9\u30c8\u3092\u53d6\u308a\u9664\u304f<\/li>\n<li>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u3092\u907f\u3051\u308b<\/li>\n<li>\u8cfc\u8aad\u8005\u306b\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u300d\u3055\u308c\u306a\u3044\u3088\u3046\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u3059\u308b<\/div><\/li>\n<\/ul>\n<p>\u5404\u5bfe\u7b56\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\uff09\u3092\u5fb9\u5e95\u3059\u308b<\/h3>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3068\u306f\u3001<strong>\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u304c\u4ed6\u306e\u4f55\u8005\u304b\u306b\u306a\u308a\u3059\u307e\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u305f\u3081\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/strong>\u306e\u3053\u3068\u3067\u3059\u3002\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u3055\u308c\u3066\u3044\u308b\u3068\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u9ad8\u307e\u308a\u3001\u5230\u9054\u7387\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u958b\u59cb\u306e\u4e8b\u524d\u306b\u3067\u304d\u308b\u5bfe\u7b56\u306a\u305f\u3081\u3001\u3053\u308c\u304b\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u59cb\u3081\u308b\u306a\u3089\u5fc5\u305a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u5b9f\u8df5\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u307e\u305f\u3001\u300c\u3059\u3067\u306b\u30e1\u30fc\u30eb\u914d\u4fe1\u3057\u3066\u3044\u308b\u304c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u306f\u602a\u3057\u3044\u300d\u3068\u3044\u3046\u5834\u5408\u306f\u3001\u5fc5\u305a\u8a2d\u5b9a\u3092\u898b\u76f4\u3059\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306f\u3001Web\u30b5\u30a4\u30c8\u3067\u3044\u3046\u300cSSL\u5316\u300d\u304f\u3089\u3044<strong>\u5f53\u7136\u306e\u3088\u3046\u306b\u884c\u3046\u3079\u304d\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3068\u306f\u3001\u5177\u4f53\u7684\u306b\u4ee5\u4e0b\uff13\u3064\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u624b\u6cd5<\/strong><\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF\uff08Sender Policy Framework\uff09<\/strong>\n\u30e1\u30fc\u30eb\u914d\u4fe1\u6642\u3001\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u4e8b\u524d\u767b\u9332\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u3068\u7167\u5408\u3059\u308b\u3053\u3068\u3067\u306a\u308a\u3059\u307e\u3057\u3092\u691c\u77e5\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3002\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u3068\u306a\u308bDNS\uff08\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\uff09\u306b\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092TXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u8a2d\u5b9a\u53ef\u80fd\u3002<\/li>\n<li><strong>DKIM\uff08DomainKeys Identified Mail\uff09<\/strong>\n\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3001\u53d7\u4fe1\u5074\u304c\u305d\u308c\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u3067\u306a\u308a\u3059\u307e\u3057\u3092\u691c\u77e5\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3002\u30e1\u30fc\u30eb\u3001\u3082\u3057\u304f\u306f\u30b5\u30fc\u30d0\u30fc\u30b5\u30fc\u30d3\u30b9\u4e0a\u3067DKIM\u516c\u958b\u9375\u3092\u751f\u6210\u3057\u3001\u9001\u4fe1\u5143\u3068\u306a\u308bDNS\u306bTXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u8a2d\u5b9a\u53ef\u80fd\u3002<\/li>\n<li><strong>DMARC\uff08Domain-based Message Authentication, Reporting and Conformance\uff09<\/strong>\nSPF\u3068DKIM\u306e\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u306a\u308a\u3059\u307e\u3057\u3068\u601d\u308f\u308c\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u3069\u306e\u3088\u3046\u306b\u6271\u3063\u3066\u3082\u3089\u3046\u304b\uff08\u53d7\u4fe1\u3001\u30b9\u30d1\u30e0\u3001\u53d7\u4fe1\u62d2\u5426\uff09\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u5074\u304c\u6c7a\u3081\u3089\u308c\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3002\u3053\u3061\u3089\u3082\u9001\u4fe1\u5143\u306eDNS\u306bTXT\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u8a2d\u5b9a\u53ef\u80fd\u3002<\/div><\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\uff13\u3064\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306f\u3069\u308c\u304b\u4e00\u3064\u3067\u306f\u306a\u304f\u3001<strong>\u3059\u3079\u3066<\/strong>\u884c\u3046\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u306a\u305c\u306a\u3089\u3001\u3069\u306e\u5bfe\u7b56\u3082\u4e00\u9577\u4e00\u77ed\u3042\u308a\u3001\u3059\u3079\u3066\u884c\u3046\u3053\u3068\u3067\u5f31\u70b9\u3092\u88dc\u3044\u5408\u3048\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u3053\u3067\u6c42\u3081\u3089\u308c\u308b\u300cSPF\u300d\u300cDKIM\u300d\u300cDMARC\u300d\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u3084\u3001\u305d\u308c\u305e\u308c\u306e\u9055\u3044\u3001\u8a2d\u5b9a\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u306f\u3001\u56f3\u89e3\u4ed8\u304d\u306e\u3053\u3061\u3089\u306e\u8a18\u4e8b\u304c\u53c2\u8003\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/no-delivery\/identification\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/07\/WEBCAS\u306e\u30b3\u30d4\u30fc.png\" alt=\"\u3010\u30e1\u30fc\u30eb\u306e\u8eab\u5206\u8a3c\u3011SPF\u30fbDKIM\u30fbDMARC\u3067\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u3092\u9632\u304e\u3001\u30e1\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u3010\u30e1\u30fc\u30eb\u306e\u8eab\u5206\u8a3c\u3011SPF\u30fbDKIM\u30fbDMARC\u3067\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u3092\u9632\u304e\u3001\u30e1\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5<\/div>\n    <div class=\"blogcard_excerpt\">\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3058\u3083\u306a\u3044\u306e\u306b\u3001\u306a\u305c\u304b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044..\u3002\u300d \u300c\u304a\u5ba2\u69d8\u306b\u9001\u3063\u305f\u5927\u4e8b\u306a\u30e1\u30fc\u30eb\u304c\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u3063\u3066\u3057\u307e\u3046..\u3002\u300d \u3053\u3093\u306a\u60a9\u307f\u3092\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>\u540c\u4e00IP\u304b\u3089\u306e\u5927\u91cf\u914d\u4fe1\u306f\u907f\u3051\u308b<\/h3>\n<p>\u540c\u4e00IP\u304b\u3089\u306e\u5927\u91cf\u914d\u4fe1\u306f\u3001\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u696d\u8005\u304c\u3084\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5178\u578b\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u540c\u4e00IP\u304b\u3089\u30e1\u30fc\u30eb\u3092\u5927\u91cf\u306b\u914d\u4fe1\u3059\u308b\u3068\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u4e0b\u304c\u308a\u3001\u7d50\u679c\u7684\u306b\u5230\u9054\u7387\u304c\u60aa\u304f\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001IP\u30a2\u30c9\u30ec\u30b9\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u5165\u3059\u308b\u3068\u3001\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3089\u306e\u3053\u3068\u3092\u9632\u3050\u305f\u3081\u306b\u3082\u3001\uff11\u65e5\u306b\u4f55\u4e07\u901a\u3082\u30e1\u30fc\u30eb\u914d\u4fe1\u3059\u308b\u5834\u5408\u306f\u3001<strong>\u8907\u6570IP\u304b\u3089\u5206\u6563\u3057\u3066<\/strong>\u884c\u3046\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u4e0b\u304c\u308a\u306b\u304f\u304f\u306a\u308a\u3001\u5230\u9054\u7387\u3082\u4e0a\u304c\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u8907\u6570IP\u304b\u3089\u306e\u5206\u6563\u914d\u4fe1\u3092\u884c\u3046\u306b\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u5229\u7528\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u4e0b\u8a18\u8a18\u4e8b\u3067\u306f\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/mail-delivery\/select20\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u6bd4\u8f0320\u9078\uff01\u6a5f\u80fd\u30fb\u6599\u91d1\u3092\u5fb9\u5e95\u6bd4\u8f03<\/a><\/p>\n<h3>\u914d\u4fe1\u30a8\u30e9\u30fc\u306b\u306a\u308b\u30ea\u30b9\u30c8\u3092\u53d6\u308a\u9664\u304f<\/h3>\n<p><strong>\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u306b\u30e1\u30fc\u30eb\u914d\u4fe1\u3057\u7d9a\u3051\u308b\u3068\u3001\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u5224\u5b9a\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/strong>\u914d\u4fe1\u30a8\u30e9\u30fc\u304c\u306a\u3044\u304b\u3069\u3046\u304b\u3092\u5b9a\u671f\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u5165\u529b\u30df\u30b9\u306e\u3042\u308b\u30a2\u30c9\u30ec\u30b9\u3084\u5b58\u5728\u3057\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u306f\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u5916\u3059\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u7279\u306b\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u6709\u6599\u3067\u8ca9\u58f2\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306a\u30a2\u30c9\u30ec\u30b9\u30ea\u30b9\u30c8\u306b\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u30ea\u30b9\u30c8\u3092\u304a\u91d1\u3067\u8cfc\u5165\u3059\u308b\u306e\u306f\u63a7\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u3092\u907f\u3051\u308b<\/h3>\n<p>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u3068\u306f\u3001\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u696d\u8005\u3092\u3042\u3076\u308a\u51fa\u3059\u305f\u3081\u306bIPS\u5074\u304c\u4f5c\u3063\u305f<strong>\u56ee\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u306b\u30e1\u30fc\u30eb\u914d\u4fe1\u3059\u308b\u3068\u5373\u5ea7\u306b\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u5165\u3068\u306a\u308a\u3001\u5230\u9054\u7387\u304c\u8457\u3057\u304f\u60aa\u5316\u3057\u307e\u3059\u3002\u6709\u6599\u306e\u30a2\u30c9\u30ec\u30b9\u30ea\u30b9\u30c8\u306b\u7d1b\u308c\u8fbc\u3093\u3067\u3044\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308b\u306e\u3067\u3001\u3084\u306f\u308a\u30ea\u30b9\u30c8\u3092\u304a\u91d1\u3067\u8cfc\u5165\u3059\u308b\u306e\u306f\u63a7\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u8cfc\u8aad\u8005\u306b\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u300d\u3055\u308c\u306a\u3044\u3088\u3046\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u3059\u308b<\/h3>\n<p>\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u4e0a\u3067\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u300d\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u305d\u306e\u8cfc\u8aad\u8005\u306e\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\u5c4a\u304b\u306a\u304f\u306a\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u5168\u4f53\u304c\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u5224\u5b9a\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\uff08\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u4f4e\u4e0b\uff09\u3002<\/p>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u3082\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u610f\u56f3\u3057\u306a\u3044\u8cfc\u8aad\u3092\u6e1b\u3089\u3059<\/li>\n<li>\u914d\u4fe1\u89e3\u9664\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7c21\u5358\u306b\u3059\u308b<\/li>\n<li>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u3092\u4e07\u5168\u306b\u3057\u3066\u304a\u304f<\/li>\n<li>\u516c\u5e8f\u826f\u4fd7\u306b\u53cd\u3059\u308b\u5185\u5bb9\u306e\u914d\u4fe1\u306f\u63a7\u3048\u308b<\/div><\/li>\n<\/ul>\n<p>\u5404\u5bfe\u7b56\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h4>\u610f\u56f3\u3057\u306a\u3044\u8cfc\u8aad\u3092\u6e1b\u3089\u3059<\/h4>\n<p>\u300c\u8cfc\u8aad\u3059\u308b\u300d\u306b\u306f\u3058\u3081\u304b\u3089\u30c1\u30a7\u30c3\u30af\u304c\u5165\u3063\u305f\u72b6\u614b\u3067\u5546\u54c1\u8cfc\u5165\u3092\u3057\u305f\u306a\u3069\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u305b\u305a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u8cfc\u8aad\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30aa\u30d5\u30a1\u30fc\u306f\u5fc5\u305a\u30e6\u30fc\u30b6\u30fc\u304c\u8a8d\u8b58\u3057\u3084\u3059\u3044\u5f62\u3067\u884c\u3044\u3001\u610f\u56f3\u3057\u306a\u3044\u8cfc\u8aad\u306f\u53ef\u80fd\u306a\u9650\u308a\u6e1b\u3089\u3059\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>\u914d\u4fe1\u89e3\u9664\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7c21\u5358\u306b\u3059\u308b<\/h4>\n<p>\u8cfc\u8aad\u8005\u304c\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3059\u308b\u7406\u7531\u3068\u3057\u3066\u591a\u3044\u306e\u304c\u3001\u300c\u914d\u4fe1\u89e3\u9664\u304c\u96e3\u3057\u3044\u3001\u9762\u5012\u304f\u3055\u3044\u300d\u3068\u3044\u3046\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u8cfc\u8aad\u8005\u304b\u3089\u3059\u308b\u3068\u3001<strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u89e3\u9664\u306f\u30ef\u30f3\u30af\u30ea\u30c3\u30af\uff08\u30ef\u30f3\u30bf\u30c3\u30d7\uff09\u3067\u6e08\u3080\u306e\u304c\u7406\u60f3<\/strong>\u3067\u3059\u3002\u30b5\u30fc\u30d3\u30b9\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u305f\u308a\u30e1\u30cb\u30e5\u30fc\u3092\u63a2\u3057\u305f\u308a\u3068\u3044\u3063\u305f\u3053\u3068\u304c\u5fc5\u8981\u306a\u4ed5\u69d8\u3060\u3068\u3001\u305d\u306e\u5834\u3067\u3059\u3050\u306b\u914d\u4fe1\u89e3\u9664\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u3082\u3063\u3068\u7c21\u5358\u306b\u3067\u304d\u308b\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u306b\u6d41\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001<strong>\u914d\u4fe1\u89e3\u9664\u304c\u3067\u304d\u306a\u3044\u4ed5\u69d8\u306f\u6cd5\u5f8b\u9055\u53cd\u3068\u306a\u308b\u306e\u3067\u3001\u7d76\u5bfe\u306b\u3084\u3089\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong>\u3053\u308c\u306b\u306f\u300c\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u300d\u3068\u3044\u3046\u6cd5\u5f8b\u304c\u95a2\u4fc2\u3057\u3066\u3044\u307e\u3059\u3002\u3042\u306a\u305f\u304c\u30e1\u30fc\u30eb\u914d\u4fe1\u62c5\u5f53\u8005\u3067\u3042\u308c\u3070\u3001\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u306e\u77e5\u8b58\u3082\u84c4\u3048\u3066\u304a\u304f\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h4>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\uff09\u3092\u4e07\u5168\u306b\u3057\u3066\u304a\u304f<\/h4>\n<p>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u304c\u4e07\u5168\u3067\u306a\u3044\u3068\u3001\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u4e0b\u304c\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u53d7\u4fe1\u8005\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u4e0a\u306b<strong>\u300c\u3053\u306e\u30e1\u30fc\u30eb\u306f\u5b89\u5168\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u300d<\/strong>\u3068\u3044\u3046\u65e8\u306e\u8868\u793a\u304c\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u3046\u3044\u3063\u305f\u8868\u793a\u306f\u8cfc\u8aad\u8005\u306b\u4e0d\u5b89\u3092\u4e0e\u3048\u3001\u5b9f\u969b\u306b\u306f\u306a\u308a\u3059\u307e\u3057\u3067\u306a\u304b\u3063\u305f\u3068\u3057\u3066\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3055\u308c\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n<h4>\u516c\u5e8f\u826f\u4fd7\u306b\u53cd\u3059\u308b\u5185\u5bb9\u306e\u914d\u4fe1\u306f\u63a7\u3048\u308b<\/h4>\n<p>\u516c\u5e8f\u826f\u4fd7\u306b\u53cd\u3059\u308b\u5185\u5bb9\u306e\u914d\u4fe1\u306f\u8cfc\u8aad\u8005\u3092\u4e0d\u5feb\u306b\u3055\u305b\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u300c\uff11\u6642\u9593\u30bf\u30a4\u30e0\u30bb\u30fc\u30eb\uff01\uff01 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style=\"color: #ff0000;\"><strong>\u300c\u3069\u306eIP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u9001\u3089\u308c\u3066\u3044\u308b\u304b\u300d\u3068\u3044\u3046\u9001\u4fe1\u5143\u306e\u8a55\u5224\uff08IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\uff09\u304c\u6975\u3081\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059<\/strong><\/span>\u3002<\/p>\n<p>\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u904e\u53bb\u306e\u9001\u4fe1\u5c65\u6b74\u3084\u30a8\u30e9\u30fc\u7387\u306a\u3069\u3092\u57fa\u306bIP\u30a2\u30c9\u30ec\u30b9\u3054\u3068\u306b\u4fe1\u983c\u6027\u3092\u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u3057\u3066\u304a\u308a\u3001\u3053\u306e\u30b9\u30b3\u30a2\u304c\u4f4e\u3044\u3068\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u914d\u4fe1\u696d\u8005\u3068\u307f\u306a\u3055\u308c\u3066\u30d6\u30ed\u30c3\u30af\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b\u306b\u306f\u3001\u6c5a\u308c\u3066\u3044\u306a\u3044\u30af\u30ea\u30fc\u30f3\u306aIP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u914d\u4fe1\u3092\u884c\u3044\u3001\u6642\u9593\u3092\u304b\u3051\u3066\u4fe1\u983c\u3092\u7a4d\u307f\u4e0a\u3052\u3066\u3044\u304f\u904b\u7528\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3>\u5171\u6709IP\u30a2\u30c9\u30ec\u30b9\u306e\u30ea\u30b9\u30af\u3068\u5c02\u7528IP\u30a2\u30c9\u30ec\u30b9\u306e\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>\u591a\u304f\u306e\u5b89\u4fa1\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u540c\u3058IP\u30a2\u30c9\u30ec\u30b9\u3092\u5171\u7528\u3059\u308b\u300c\u5171\u6709IP\u300d\u65b9\u5f0f\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u30b3\u30b9\u30c8\u3092\u6291\u3048\u3089\u308c\u308b\u53cd\u9762\u3001\u540c\u3058IP\u3092\u4f7f\u3063\u3066\u3044\u308b\u4ed6\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3092\u9001\u3063\u305f\u308a\u30a8\u30e9\u30fc\u3092\u5927\u91cf\u306b\u51fa\u3057\u305f\u308a\u3057\u305f\u5834\u5408\u306b\u3001\u5dfb\u304d\u6dfb\u3048\u3092\u98df\u3063\u3066\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u307e\u3067\u5c4a\u304b\u306a\u304f\u306a\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u89e3\u6c7a\u7b56\u304c\u81ea\u793e\u5c02\u7528\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3067\u304d\u308b\u300c\u5c02\u7528IP\u300d\u3067\u306e\u904b\u7528\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u4ed6\u793e\u306e\u914d\u4fe1\u72b6\u6cc1\u306b\u3088\u308b\u60aa\u5f71\u97ff\u3092\u4e00\u5207\u53d7\u3051\u306a\u3044<\/li>\n<li>\u81ea\u793e\u306e\u512a\u826f\u306a\u914d\u4fe1\u5b9f\u7e3e\u3060\u3051\u3092\u7a4d\u307f\u4e0a\u3052\u3066\u9ad8\u3044\u4fe1\u983c\u6027\u3092\u69cb\u7bc9\u3067\u304d\u308b<\/li>\n<li>\u5927\u898f\u6a21\u914d\u4fe1\u306b\u304a\u3044\u3066\u3082\u5b89\u5b9a\u3057\u305f\u5230\u9054\u7387\u3092\u7dad\u6301\u3057\u3084\u3059\u3044<\/div><\/li>\n<\/ul>\n<p>\u3053\u306e\u3088\u3046\u306b\u5916\u90e8\u8981\u56e0\u3092\u6392\u9664\u3057\u3066\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u308b\u74b0\u5883\u3092\u6574\u3048\u308b\u3053\u3068\u304c\u3001\u30d3\u30b8\u30cd\u30b9\u306b\u304a\u3051\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5b89\u5b9a\u5316\u306b\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u79c1\u305f\u3061\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u3088\u3046\u306a\u914d\u4fe1\u30d9\u30f3\u30c0\u30fc\u3067\u306f\u3001\u3055\u3089\u306b\u30d7\u30ed\u30d0\u30a4\u30c0\u3054\u3068\u306e\u7d30\u304b\u306a\u914d\u4fe1\u30ed\u30b8\u30c3\u30af\u306b\u5408\u308f\u305b\u3066\u6700\u9069\u5316\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u5c02\u7528IP\u306e\u5f37\u307f\u3092\u6700\u5927\u9650\u306b\u6d3b\u304b\u3059\u4ed5\u7d44\u307f\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\uff08\u5b9b\u5148\u4e0d\u660e\uff09\u3092\u9001\u308a\u7d9a\u3051\u308b\u3068\u5230\u9054\u7387\u304c\u4e0b\u304c\u308b\u7406\u7531<\/h3>\n<p>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u6700\u5927\u306e\u8981\u56e0\u306e\u4e00\u3064\u304c\u300c\u5c4a\u304b\u306a\u3044\u5b9b\u5148\uff08\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\uff09\u300d\u306b\u5bfe\u3057\u3066\u7e70\u308a\u8fd4\u3057\u9001\u4fe1\u3092\u884c\u3044\u7d9a\u3051\u308b\u3053\u3068\u3067\u3059\u3002\u5b9f\u306f\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u4e16\u754c\u306b\u304a\u3044\u3066\u3001\u53d7\u4fe1\u5074\u306e\u30b5\u30fc\u30d0\u30fc\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u5834\u5408\u306e\u6b63\u78ba\u306a\u5230\u9054\u7387\u3092\u77e5\u308b\u8853\u306f\u9001\u4fe1\u5074\u306b\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3060\u304b\u3089\u3053\u305d\u76ee\u306b\u898b\u3048\u308b\u6307\u6a19\u3067\u3042\u308b\u300c\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u300d\u306e\u7ba1\u7406\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b58\u5728\u3057\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u306b\u9001\u308a\u7d9a\u3051\u308b\u884c\u70ba\u306f\u30d7\u30ed\u30d0\u30a4\u30c0\u304b\u3089\u300c\u30ea\u30b9\u30c8\u306e\u7ba1\u7406\u304c\u305a\u3055\u3093\u306a\u30b9\u30d1\u30e0\u696d\u8005\u300d\u3068\u5224\u65ad\u3055\u308c\u308b\u6c7a\u5b9a\u7684\u306a\u8981\u56e0\u306b\u306a\u308a\u307e\u3059\u3002\u9ad8\u3044\u5230\u9054\u7387\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30a8\u30e9\u30fc\u3068\u306a\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u3092\u5373\u5ea7\u306b\u914d\u4fe1\u30ea\u30b9\u30c8\u304b\u3089\u9664\u5916\u3059\u308b\u30ea\u30b9\u30c8\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u3092\u5fb9\u5e95\u3057\u3001\u5e38\u306b\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30e6\u30fc\u30b6\u30fc\u306b\u306e\u307f\u9001\u308b\u72b6\u614b\u3092\u4fdd\u3064\u3053\u3068\u304c\u9244\u5247\u3067\u3059\u3002<\/p>\n<p>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u3069\u306e\u3088\u3046\u306b\u7b97\u51fa\u3055\u308c\u308b\u306e\u304b\u3001\u307e\u305f\u30b9\u30b3\u30a2\u3092\u4f4e\u4e0b\u3055\u305b\u306a\u3044\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u904b\u7528\u30eb\u30fc\u30eb\u306b\u3064\u3044\u3066\u306f\u3001\u59c9\u59b9\u30b5\u30fc\u30d3\u30b9\u300c\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u300d\u306e\u6280\u8853\u30d6\u30ed\u30b0\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastengine.jp\/blog\/ip-reputation\/\" target=\"_blank\" rel=\"noopener\">IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\u305f\u3081\u306e\u57fa\u790e\u77e5\u8b58<\/a><\/strong><\/p>\n<h2>\u3010\u91cd\u8981\u3011Gmail\u30fbYahoo!\u30fbOutlook\u7b49\u306e\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u304c\u5230\u9054\u7387\u306e\u30ab\u30ae<\/h2>\n<p>\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3092\u63a2\u308b\u3046\u3048\u3067\u73fe\u5728\u6700\u3082\u7121\u8996\u3067\u304d\u306a\u3044\u306e\u304c\u3001Gmail\u3001Yahoo!\u30e1\u30fc\u30eb\u3001Microsoft\uff08Outlook\uff09\u3068\u3044\u3063\u305f\u4e3b\u8981\u306a\u30d5\u30ea\u30fc\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306b\u3088\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6\u306e\u5909\u66f4\u3067\u3059\u3002\u7279\u306b2024\u5e74\u306b\u65bd\u884c\u3055\u308c\u305fGmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u6539\u5b9a\u3092\u306f\u3058\u3081\u3001\u5404\u793e\u3068\u3082\u306b\u30e1\u30fc\u30eb\u3092\u5927\u91cf\u306b\u914d\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3066\u53b3\u683c\u306a\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u6c42\u3081\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u308c\u306f\u5358\u306a\u308b\u63a8\u5968\u4e8b\u9805\u3067\u306f\u306a\u304f\u3001\u5b88\u3089\u306a\u3051\u308c\u3070\u30e1\u30fc\u30eb\u304c\u62d2\u5426\u3055\u308c\u305f\u308a\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u76f4\u884c\u3057\u305f\u308a\u3059\u308b\u5f37\u5236\u529b\u306e\u3042\u308b\u30eb\u30fc\u30eb\u3067\u3059\u3002\u5230\u9054\u7387\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u306f\u3053\u308c\u3089\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u304c\u5171\u901a\u3057\u3066\u5b9a\u3081\u308b\u6700\u65b0\u306e\u30eb\u30fc\u30eb\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u3001\u6280\u8853\u7684\u306a\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3053\u3068\u304c\u6700\u512a\u5148\u8ab2\u984c\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5177\u4f53\u7684\u306a\u5909\u66f4\u70b9\u3084\u3001\u672a\u5bfe\u5fdc\u306e\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u30ea\u30b9\u30af\u3001\u305d\u3057\u3066\u9001\u4fe1\u8005\u304c\u4eca\u3059\u3050\u884c\u3046\u3079\u304d3\u3064\u306e\u5fc5\u9808\u5bfe\u7b56\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u7d30\u306b\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/gmail-guideline-202402\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/Gmail_guide.png\" alt=\"\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u306f\u3001\u300cGmail\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u305f\u3044\u306a\u3089\u3001\u9001\u4fe1\u5074\u306f\u3053\u306e\u30eb\u30fc\u30eb\u3092\u5b88\u3063\u3066\u304f\u3060\u3055\u3044\u300d\u3068Google\u304c\u5b9a\u3081\u305f\u8981\u4ef6\u306e\u3053\u3068\u3067\u3059\u3002\u6b63\u5f0f\u540d\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>SPF\u30fbDKIM\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\uff1f\u300cDMARC\u300d\u8a2d\u5b9a\u306e\u5fc5\u8981\u6027<\/h3>\n<p>\u3053\u308c\u307e\u3067\u306e\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3044\u3048\u3070\u9001\u4fe1\u5143\u3092\u8a3c\u660e\u3059\u308bSPF\u3068\u6539\u3056\u3093\u3092\u691c\u77e5\u3059\u308bDKIM\u306e2\u3064\u304c\u4e3b\u6d41\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u73fe\u5728\u306e\u57fa\u6e96\u3067\u306f\u3053\u308c\u3089\u3092\u8a2d\u5b9a\u3059\u308b\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u306a\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u305d\u3053\u3067\u65b0\u305f\u306b\u5fc5\u9808\u3068\u306a\u308a\u3064\u3064\u3042\u308b\u306e\u304cDMARC\uff08\u30c7\u30a3\u30fc\u30de\u30fc\u30af\uff09\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u5c11\u3057\u3060\u3051\u4e0a\u8ff0\u3057\u307e\u3057\u305f\u304c\u3001<span style=\"color: #ff0000;\"><strong>DMARC\u306fSPF\u3084DKIM\u306e\u8a8d\u8a3c\u304c\u5931\u6557\u3057\u305f\u969b\u306b\u305d\u306e\u30e1\u30fc\u30eb\u3092\u300c\u53d7\u4fe1\u62d2\u5426\u3059\u308b\u300d\u306e\u304b\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5165\u308c\u308b\u300d\u306e\u304b\u3001\u3042\u308b\u3044\u306f\u300c\u4f55\u3082\u3057\u306a\u3044\u300d\u306e\u304b\u3068\u3044\u3046\u51e6\u7406\u65b9\u91dd\u3092\u9001\u4fe1\u8005\u5074\u304c\u5ba3\u8a00\u3059\u308b\u305f\u3081\u306e\u6280\u8853<\/strong><\/span>\u3067\u3059\u3002\u3053\u306e\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068\u3067\u53d7\u4fe1\u5074\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u5b89\u5fc3\u3057\u3066\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u7d50\u679c\u3068\u3057\u3066\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3067\u3042\u308b\u3068\u8a8d\u8b58\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3092\u3057\u3066\u3044\u306a\u3044\u30e1\u30fc\u30eb\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u6642\u4ee3\u3078<\/h3>\n<p>\u3053\u308c\u3089\u306e\u6280\u8853\u304c\u6c42\u3081\u3089\u308c\u308b\u80cc\u666f\u306b\u306f\u3001\u5b9f\u5728\u3059\u308b\u4f01\u696d\u3084\u30d6\u30e9\u30f3\u30c9\u3092\u9a19\u3063\u305f\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u6025\u5897\u304c\u3042\u308a\u307e\u3059\u3002Google\u3084Yahoo!\u306a\u3069\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u81ea\u793e\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u5b88\u308b\u305f\u3081\u306b\u3001\u8eab\u5143\u304c\u4e0d\u78ba\u304b\u306a\u30e1\u30fc\u30eb\u3084\u8a8d\u8a3c\u8a2d\u5b9a\u304c\u4e0d\u5b8c\u5168\u306a\u30e1\u30fc\u30eb\u3092\u5fb9\u5e95\u7684\u306b\u6392\u9664\u3059\u308b\u52d5\u304d\u3092\u5f37\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u300c\u602a\u3057\u3044\u30e1\u30fc\u30eb\u300d\u3068\u5224\u5b9a\u3055\u308c\u306a\u3044\u305f\u3081\u306e\u8eab\u5206\u8a3c\u660e\u3092\u63d0\u793a\u3067\u304d\u306a\u3044\u9001\u4fe1\u8005\u306f\u3001\u3069\u3093\u306a\u306b\u6709\u76ca\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u9001\u3063\u3066\u3044\u305f\u3068\u3057\u3066\u3082\u9580\u524d\u6255\u3044\u3092\u98df\u3089\u3063\u3066\u3057\u307e\u3046\u6642\u4ee3\u306b\u306a\u3063\u305f\u306e\u3067\u3059\u3002\u9069\u5207\u306a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u884c\u3046\u3053\u3068\u306f\u3001\u53d7\u4fe1\u8005\u306b\u5bfe\u3059\u308b\u30de\u30ca\u30fc\u3067\u3042\u308b\u3068\u540c\u6642\u306b\u81ea\u793e\u306e\u30d6\u30e9\u30f3\u30c9\u3092\u5b88\u308a\u30e1\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u305f\u3081\u306e\u5fc5\u9808\u6761\u4ef6\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n<h2>\u30e1\u30eb\u30de\u30ac\u306e\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h2>\n<p>\u3053\u3053\u307e\u3067\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u7684\u306a\u5bfe\u7b56\u3084\u904b\u7528\u30eb\u30fc\u30eb\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u7ba1\u7406\u3084\u8907\u96d1\u5316\u3059\u308b\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u3001\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u306a\u3069\u3092\u3059\u3079\u3066\u81ea\u793e\u3060\u3051\u3067\u5b8c\u74a7\u306b\u884c\u3046\u306b\u306f\u9ad8\u5ea6\u306a\u5c02\u9580\u77e5\u8b58\u3068\u81a8\u5927\u306a\u624b\u9593\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u304a\u3059\u3059\u3081\u306a\u306e\u304c\u3053\u308c\u3089\u306e\u5bfe\u7b56\u304c\u6a19\u6e96\u6a5f\u80fd\u3068\u3057\u3066\u5099\u308f\u3063\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002Outlook\u3084Gmail\u306a\u3069\u306e\u4e00\u822c\u7684\u306a\u30e1\u30fc\u30e9\u30fc\u306f\u5927\u91cf\u914d\u4fe1\u3092\u60f3\u5b9a\u3057\u3066\u4f5c\u3089\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u5230\u9054\u7387\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u30e1\u30eb\u30de\u30ac\u3092\u9001\u308b\u306b\u306f\u5c02\u7528\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u529b\u304c\u4e0d\u53ef\u6b20\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>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u5230\u9054\u7387\u6539\u5584\u306b\u304a\u3044\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f37\u529b\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u8907\u96d1\u306a\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u30b5\u30dd\u30fc\u30c8\uff1a<\/strong>Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306a\u3069\u3067\u5fc5\u9808\u3068\u306a\u3063\u305fSPF\u3084DKIM\u3001DMARC\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u3092\u30b7\u30b9\u30c6\u30e0\u5074\u304c\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304f\u308c\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u5c02\u9580\u7684\u306a\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u6700\u65b0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u306b\u6e96\u62e0\u3057\u305f\u5b89\u5168\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u81ea\u52d5\u51e6\u7406\uff08\u30ea\u30b9\u30c8\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\uff09\uff1a<\/strong>\u8a18\u4e8b\u5185\u3067\u3082\u91cd\u8981\u6027\u3092\u89e3\u8aac\u3057\u305f\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u3078\u306e\u914d\u4fe1\u505c\u6b62\u3092\u81ea\u52d5\u5316\u3067\u304d\u307e\u3059\u3002\u5c4a\u304b\u306a\u304b\u3063\u305f\u30e1\u30fc\u30eb\u3092\u30b7\u30b9\u30c6\u30e0\u304c\u691c\u77e5\u3057\u81ea\u52d5\u7684\u306b\u6b21\u56de\u306e\u914d\u4fe1\u30ea\u30b9\u30c8\u304b\u3089\u9664\u5916\u3059\u308b\u305f\u3081\u3001\u5e38\u306b\u30af\u30ea\u30fc\u30f3\u306a\u30ea\u30b9\u30c8\u3092\u7dad\u6301\u3057IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f4e\u4e0b\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u30ad\u30e3\u30ea\u30a2\u3084\u30d7\u30ed\u30d0\u30a4\u30c0\u3054\u3068\u306e\u6700\u9069\u5316\u914d\u4fe1\uff1a<\/strong>\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u3084Gmail\u306a\u3069\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u305d\u308c\u305e\u308c\u72ec\u81ea\u306e\u30d6\u30ed\u30c3\u30af\u30ed\u30b8\u30c3\u30af\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u512a\u79c0\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3042\u308c\u3070\u5b9b\u5148\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306b\u9001\u4fe1\u9593\u9694\u3092\u8abf\u6574\u3057\u305f\u308aIP\u30a2\u30c9\u30ec\u30b9\u3092\u5206\u6563\u3055\u305b\u305f\u308a\u3068\u3044\u3063\u305f\u9ad8\u5ea6\u306a\u5236\u5fa1\u3092\u88cf\u5074\u3067\u884c\u3063\u3066\u304f\u308c\u308b\u305f\u3081\u3001\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/div><\/li>\n<\/ul>\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><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\" \/><\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u5230\u9054\u7387\u306b\u3053\u3060\u308f\u3063\u3066\u30b7\u30b9\u30c6\u30e0\u3092\u9078\u3076\u306a\u308915\u5e74\u9023\u7d9a\u9867\u5ba2\u5c0e\u5165\u30b7\u30a7\u30a2No.1\u306e\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\uff08blastmail\uff09\u304c\u304a\u3059\u3059\u3081<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u9577\u5e74\u306e\u904b\u7528\u5b9f\u7e3e\u306b\u57fa\u3065\u304d\u72ec\u81ea\u306b\u958b\u767a\u3057\u305f\u9ad8\u901f\u914d\u4fe1\u30a8\u30f3\u30b8\u30f3\u3092\u642d\u8f09\u3057\u3066\u304a\u308a\u3001PC\u3084\u30b9\u30de\u30db\u3001\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306a\u3069\u3042\u3089\u3086\u308b\u74b0\u5883\u306b\u5411\u3051\u3066\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u305f\u3081\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u304c\u65bd\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305fGmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5909\u66f4\u306a\u3069\u79fb\u308a\u5909\u308f\u308a\u306e\u6fc0\u3057\u3044\u30e1\u30fc\u30eb\u914d\u4fe1\u696d\u754c\u306e\u30eb\u30fc\u30eb\u306b\u3082\u3044\u3061\u65e9\u304f\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002SPF\u3084DKIM\u3001DMARC\u3078\u306e\u5bfe\u5fdc\u306f\u3082\u3061\u308d\u3093PRO\u30d7\u30e9\u30f3\u3067\u306f\u30ea\u30b9\u30c8\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u6a5f\u80fd\u3082\u6a19\u6e96\u88c5\u5099\u3057\u3066\u3044\u308b\u305f\u3081\u5b89\u5fc3\u3057\u3066\u914d\u4fe1\u696d\u52d9\u306b\u5c02\u5ff5\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u9ad8\u5ea6\u306a\u6a5f\u80fd\u3092\u6301\u3061\u306a\u304c\u3089\u64cd\u4f5c\u753b\u9762\u306f\u76f4\u611f\u7684\u3067\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306f\u5f37\u5316\u3057\u305f\u3044\u304c\u96e3\u3057\u3044\u8a2d\u5b9a\u306f\u82e6\u624b\u3068\u3044\u3046\u65b9\u3067\u3082\u3001\u30de\u30cb\u30e5\u30a2\u30eb\u3092\u898b\u305a\u306b\u3059\u3050\u306b\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u30d3\u30b8\u30cd\u30b9\u306e\u6210\u679c\u306b\u3064\u306a\u3052\u308b\u305f\u3081\u306b\u3001\u307e\u305a\u306f\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3067\u305d\u306e\u5230\u9054\u7387\u306e\u9055\u3044\u3092\u4f53\u611f\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<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:14px\" target=\"_self\" id=\"bottom_select20-1\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:14px;text-shadow:none\"> \u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u7121\u6599\u304a\u305f\u3081\u3057\u306f\u3053\u3061\u3089 &gt;<\/span><\/a><\/div>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">Q\uff1a\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u304a\u3051\u308b\u300c\u5230\u9054\u7387\u300d\u306e\u76ee\u5b89\u306f\u3069\u306e\u304f\u3089\u3044\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u5230\u9054\u7387\u306f\u300c\u5230\u9054\u6570 \u00f7 \u914d\u4fe1\u7dcf\u6570 \u00d7 100\u300d\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u3069\u3093\u306a\u306b\u512a\u308c\u305f\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3082100%\u306f\u96e3\u3057\u3044\u305f\u3081\u3001<strong>\u73fe\u5b9f\u7684\u306a\u30e9\u30a4\u30f3\u3068\u3057\u306690\uff05\u3092\u76ee\u6307\u3059<\/strong>\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u300290%\u3092\u5207\u308b\u5834\u5408\u306f\u4f55\u3089\u304b\u306e\u5bfe\u7b56\u304c\u5fc5\u8981\u3067\u3059\u3002<br \/><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u5bfe\u7b56\u306f\u4f55\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\u305f\u3081\u306b\u306f\u4e3b\u306b5\u3064\u306e\u5bfe\u7b56\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u91cd\u8981\u306a\u306e\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u3068\u306a\u308b<strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u306a\u3069\uff09\u3092\u5fb9\u5e95\u3059\u308b<\/strong>\u3053\u3068\u3001\u914d\u4fe1\u30a8\u30e9\u30fc\u30ea\u30b9\u30c8\u3092\u5b9a\u671f\u7684\u306b\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u3059\u308b\u3053\u3068\u3001\u305d\u3057\u3066\u8cfc\u8aad\u8005\u306b\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u300d\u3092\u3055\u308c\u306a\u3044\u3088\u3046\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3059\u308b\u3053\u3068\u3067\u3059\u3002<br \/><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306f\u306a\u305c\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u306b\u91cd\u8981\u306a\u306e\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08SPF\u3084DKIM\uff09\u306f\u3001\u9001\u4fe1\u5143\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u8a50\u79f0\u3092\u9632\u3050\u300c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u300d\u3067\u3059\u3002<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u304c\u5897\u52a0\u3057\u3066\u3044\u308b\u6628\u4eca\u3001ISP\u3084\u30ad\u30e3\u30ea\u30a2\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u30e1\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u305f\u3081\u306b\u306f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u4e0d\u53ef\u6b20<\/strong>\u3067\u3059\u3002<br \/><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u914d\u4fe1\u30ea\u30b9\u30c8\u306e\u4e2d\u306b\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u3092\u6b8b\u3057\u3066\u304a\u304f\u3068\u3069\u306e\u3088\u3046\u306a\u60aa\u5f71\u97ff\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u306b\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u7d9a\u3051\u308b\u3068\u3001\u305d\u306e\u9001\u4fe1\u5143IP\u3084\u30c9\u30e1\u30a4\u30f3\u304c\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u3060\u3068\u5224\u5b9a\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001<strong>\u914d\u4fe1\u30a8\u30e9\u30fc\u304c\u306a\u3044\u304b\u5b9a\u671f\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3001\u5165\u529b\u30df\u30b9\u3084\u5b58\u5728\u3057\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u306f\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u5916\u3057\u3001\u30ea\u30b9\u30c8\u306e\u54c1\u8cea\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u91cd\u8981<\/strong>\u3067\u3059\u3002\u7279\u306b\u6709\u6599\u3067\u8cfc\u5165\u3057\u305f\u30ea\u30b9\u30c8\u306b\u306f\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u304c\u542b\u307e\u308c\u3084\u3059\u3044\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<br 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