{"id":13292,"date":"2025-01-17T10:00:00","date_gmt":"2025-01-17T01:00:00","guid":{"rendered":"https:\/\/www.kagoya.jp\/howto\/?p=13292"},"modified":"2025-01-17T11:56:00","modified_gmt":"2025-01-17T02:56:00","slug":"mailsecuritypolicy","status":"publish","type":"post","link":"https:\/\/www.kagoya.jp\/howto\/it-glossary\/mail\/mailsecuritypolicy\/","title":{"rendered":"\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3068\u306f\uff1f\u305d\u306e\u5fc5\u8981\u6027\u3068\u4f5c\u6210\u30fb\u904b\u7528\u306e\u624b\u9806"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.kagoya.jp\/howto\/wp-content\/uploads\/mailsecuritypolicy.png\" alt=\"\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u89e3\u8aac\" class=\"wp-image-13953\"\/><\/figure>\n\n\n\n<p>\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u5229\u7528\u8005\u306f\u975e\u5e38\u306b\u591a\u304f\u3001\u4f01\u696d\u3067\u3082\u591a\u304f\u306e\u5f93\u696d\u54e1\u304c\u4f7f\u3044\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u30e1\u30fc\u30eb\u306f\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u6a19\u7684\u306b\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5927\u5207\u306a\u60c5\u5831\u8cc7\u7523\u3092\u8105\u5a01\u304b\u3089\u5b88\u308b\u65b9\u6cd5\u3068\u3057\u3066\u3001\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u4f5c\u6210\u30fb\u904b\u7528\u304c\u3042\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u5229\u7528\u306b\u95a2\u3059\u308b\u57fa\u672c\u65b9\u91dd\u3084\u898f\u5247\u3092\u5f93\u696d\u54e1\u306b\u5468\u77e5\u3057\u3001\u5bfe\u7b56\u3092\u5fb9\u5e95\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3068\u306f<\/h2>\n\n\n\n<p><span class=\"kh-marker-blue\"><strong>\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3068\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u5229\u7528\u306b\u95a2\u3059\u308b\u57fa\u672c\u65b9\u91dd\u3084\u898f\u5247\u3092\u5b9a\u3081\u305f\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/strong><\/span>\u3067\u3059\u3002\u500b\u4eba\u60c5\u5831\u3084\u6a5f\u5bc6\u60c5\u5831\u306e\u6f0f\u3048\u3044\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306a\u3069\u3092\u9632\u3050\u305f\u3081\u306b\u4f5c\u6210\u30fb\u904b\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>Google\u3084Yahoo\u3068\u3044\u3063\u305f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u3001\u72ec\u81ea\u306e\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3092\u4f5c\u6210\u3057\u3001\u30e1\u30fc\u30eb\u53d7\u4fe1\u30fb\u9001\u4fe1\u306e\u8981\u4ef6\u306a\u3069\u3092\u5b9a\u3081\u3066\u3044\u307e\u3059\u3002<br>\u307e\u305f\u3001\u4f01\u696d\u3067\u306f\u5b88\u308b\u3079\u304d\u60c5\u5831\u8cc7\u7523\u306e\u7a2e\u985e\u3084\u5185\u5bb9\u3092\u8e0f\u307e\u3048\u3066\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3092\u4f5c\u6210\u3057\u3001\u5f93\u696d\u54e1\u306b\u5bfe\u3057\u3066\u5bfe\u7b56\u3092\u5468\u77e5\u30fb\u5fb9\u5e95\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306f\u306a\u305c\u5fc5\u8981\u306a\u306e\u304b<\/h3>\n\n\n\n<p>\u30e1\u30fc\u30eb\u306f\u3001\u4eca\u3084\u4e16\u754c\u4e2d\u306e\u4eba\u304c\u5229\u7528\u3057\u3066\u3044\u308b\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u624b\u6bb5\u3067\u3059\u3002\u4f01\u696d\u306b\u304a\u3044\u3066\u3082\u3001\u591a\u304f\u306e\u5f93\u696d\u54e1\u304c\u793e\u5185\u5916\u306e\u4eba\u3005\u3068\u306e\u9023\u7d61\u306b\u30e1\u30fc\u30eb\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><span class=\"kh-marker-blue\"><strong>\u5229\u7528\u4eba\u53e3\u304c\u591a\u3044\u304b\u3089\u3053\u305d\u3001\u30e1\u30fc\u30eb\u306f\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u7d4c\u8def\u3068\u3057\u3066\u4f7f\u308f\u308c\u3084\u3059\u3044<\/strong><\/span>\u3067\u3059\u3002<br>2020\u5e74\u306eDeloitte PLT\u306e\u30d7\u30ec\u30b9\u30ea\u30ea\u30fc\u30b9\u306b\u3088\u308b\u3068\u300c\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e91%\u306f<a href=\"https:\/\/www.kagoya.jp\/howto\/engineer\/communication\/fishingmail\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb<\/strong><\/a>\u304b\u3089\u59cb\u307e\u3063\u3066\u3044\u308b\uff08\u203b\uff09\u300d\u3068\u5224\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f01\u696d\u3067\u3084\u308a\u53d6\u308a\u3055\u308c\u3066\u3044\u308b\u30e1\u30fc\u30eb\u306b\u306f\u3001\u672c\u6587\u3084\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306b\u91cd\u8981\u306a\u60c5\u5831\u8cc7\u7523\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u4e00\u5f93\u696d\u54e1\u306e\u4f55\u6c17\u306a\u3044\u884c\u52d5\u304b\u3089\u60c5\u5831\u6f0f\u3048\u3044\u306a\u3069\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u3001\u5168\u5f93\u696d\u54e1\u306b\u30e1\u30fc\u30eb\u5229\u7528\u306e\u30eb\u30fc\u30eb\u3092\u793a\u3057\u3001\u9806\u5b88\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-small-font-size\">\u203b\u53c2\u8003\uff1a<a href=\"https:\/\/www2.deloitte.com\/my\/en\/pages\/risk\/articles\/91-percent-of-all-cyber-attacks-begin-with-a-phishing-email-to-an-unexpected-victim.html\">Deloitte PLT\u300c91% of all cyber attacks begin with a phishing email to an unexpected victim\u300d<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Google\u3084Yahoo\u306f2024\u5e742\u6708\u306b\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316<\/h3>\n\n\n\n<p>Google\u3068Yahoo\u306f\u30012024\u5e742\u6708\u306b\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u5909\u66f4\u3082\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u591a\u69d8\u5316\u3084\u30e1\u30fc\u30eb\u3067\u306e\u5404\u7a2e\u88ab\u5bb3\u306e\u5897\u52a0\u304c\u80cc\u666f\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u306a\u304a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u5909\u66f4\u306b\u3088\u308b\u5f71\u97ff\u306f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u30e6\u30fc\u30b6\u30fc\u3060\u3051\u3067\u306a\u304f\u3001Gmail\u3084Yahoo\u30e1\u30fc\u30eb\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u4f01\u696d\u306b\u3082\u3042\u308a\u307e\u3059\u3002<span class=\"kh-marker-blue\"><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u304c\u5f37\u5316\u3055\u308c\u305f\u7d50\u679c\u3001\u300c\u30e1\u30fc\u30eb\u304c\u9867\u5ba2\u306b\u5c4a\u304b\u306a\u304f\u306a\u3063\u305f\u300d\u3068\u3044\u3063\u305f\u4e8b\u4f8b<\/strong><\/span>\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<br>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u5909\u66f4\u70b9\u3084\u5909\u66f4\u5f8c\u306b\u751f\u3058\u305f\u30c8\u30e9\u30d6\u30eb\u306e\u5bfe\u7b56\u65b9\u6cd5\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\t\t<div class=\"kh-blog-card\">\n\t\t\t\t\t\t\t<figure class=\"kh-blog-card__thumbnail\">\n\t\t\t\t\t<img decoding=\"async\" width=\"1000\" height=\"525\" src=\"https:\/\/www.kagoya.jp\/howto\/wp-content\/uploads\/202406gmail.png\" class=\"kh-blog-card__image wp-post-image\" alt=\"Gmail\u3078\u306e\u30e1\u30fc\u30eb\u304c2024\u5e746\u6708\u306b\u5c4a\u304b\u306a\u304f\u306a\u308b\uff1f\u65e9\u6025\u306b\u5fc5\u8981\u306a\u5bfe\u7b56\u306b\u3064\u3044\u3066\" \/>\t\t\t\t<\/figure>\n\t\t\t\t\t\t<div class=\"kh-blog-card__text\">\n\t\t\t\t<p class=\"kh-blog-card__title\"><a href=\"https:\/\/www.kagoya.jp\/howto\/engineer\/communication\/202406gmail\/\">Gmail\u3078\u306e\u30e1\u30fc\u30eb\u304c2024\u5e746\u6708\u306b\u5c4a\u304b\u306a\u304f\u306a\u308b\uff1f\u65e9\u6025\u306b\u5fc5\u8981\u306a\u5bfe\u7b56\u306b\u3064\u3044\u3066<\/a><\/p>\n\t\t\t\t<p class=\"kh-blog-card__description\">2024\u5e742\u6708\u306b\u884c\u308f\u308c\u305fGoogle\u306e\u30dd\u30ea\u30b7\u30fc\u5909\u66f4\u306b\u3088\u308a\u3001\u4eca\u5f8c\u306e\u30e1\u30fc\u30eb\u904b\u7528\u306e\u5bfe\u7b56\u304c\u5fc5\u9808\u3068\u306a\u308a\u307e\u3057\u305f\u3002 \u305d\u3057\u3066\u30012024\u5e74\u306e6\u6708\u306b\u3053\u306e\u30dd\u30ea\u30b7\u30fc\u5909\u66f4\u306b\u3088\u308b\u5f71\u97ff\u304c\u672c\u683c\u7684\u306b\u958b\u59cb\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3057\u305f\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306fGmail\u3078\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u304c\u5c4a\u304b\u306a\u304f\u306a\u308b\u524d\u306b\u5fc5\u8981\u306a\u5bfe\u7b56\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3044\u305f\u3057\u307e\u3059\u3002 2\u6708\u306b\u884c\u308f\u308c\u305fGmail\u306e\u30dd\u30ea\u30b7\u30fc\u5909\u66f4\u70b9 \u307e\u305a\u306f\u3001\u3053\u306e\u8a71\u984c\u306e\u5143\u3068\u306a\u308b2024\u5e742\u6708\u306b\u884c\u308f\u308c\u305fGmail\u306b\u95a2\u3059\u308b\u30dd\u30ea&hellip;<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n\n\n<h2 class=\"wp-block-heading\">\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306b\u542b\u307e\u308c\u308b\u5185\u5bb9<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.kagoya.jp\/howto\/wp-content\/uploads\/report.jpg\" alt=\"\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u5185\u5bb9\" class=\"wp-image-13956\"\/><\/figure>\n\n\n\n<p>\u4e00\u822c\u306b\u3001\u4f01\u696d\u3067\u4f5c\u6210\u3055\u308c\u308b\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5185\u5bb9\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"kh-box\"><div class=\"kh-box__content\">\n<ul class=\"wp-block-list\">\n<li>\u5185\u5bb9\u2460\u76ee\u7684\u3068\u57fa\u672c\u65b9\u91dd<\/li>\n\n\n\n<li>\u5185\u5bb9\u2461\u5177\u4f53\u7684\u306a\u5bfe\u7b56\u3084\u5b9f\u65bd\u624b\u9806<\/li>\n\n\n\n<li>\u5185\u5bb9\u2462\u7ba1\u7406\u65b9\u6cd5\u3084\u7dca\u6025\u6642\u306e\u5bfe\u51e6\u6cd5<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5185\u5bb9\u2460\u76ee\u7684\u3068\u57fa\u672c\u65b9\u91dd<\/h3>\n\n\n\n<p>\u300c\u3069\u306e\u3088\u3046\u306a\u8105\u5a01\u304b\u3089\u3001\u3069\u3046\u3044\u3063\u305f\u60c5\u5831\u3092\u5b88\u308a\u305f\u3044\u306e\u304b\u300d\u300c\u76ee\u7684\u9054\u6210\u306b\u5411\u3051\u305f\u57fa\u672c\u65b9\u91dd\u300d\u3068\u3044\u3063\u305f\u5185\u5bb9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5b88\u308b\u3079\u304d\u60c5\u5831\u8cc7\u7523\u306e\u7a2e\u985e\u3001\u512a\u5148\u9806\u4f4d\u3001\u8003\u3048\u3089\u308c\u308b\u30ea\u30b9\u30af\u306f\u4f01\u696d\u306e\u898f\u6a21\u3084\u696d\u7a2e\u306b\u3088\u3063\u3066\u5909\u308f\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u5f93\u696d\u54e1\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3092\u6d78\u900f\u3055\u305b\u308b\u4e0a\u3067\u3082\u3001\u5b88\u308b\u3079\u304d\u30eb\u30fc\u30eb\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u524d\u63d0\u3068\u306a\u308b\u76ee\u7684\u3084\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u3092\u793a\u3059\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5185\u5bb9\u2461\u5177\u4f53\u7684\u306a\u5bfe\u7b56\u3084\u5b9f\u65bd\u624b\u9806<\/h3>\n\n\n\n<p>\u5177\u4f53\u7684\u306a\u30e1\u30fc\u30eb\u306e\u5229\u7528\u898f\u5247\u306b\u3064\u3044\u3066\u8a18\u8f09\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5bfe\u7b56\u306b\u3064\u3044\u3066\u8a18\u8f09\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"kh-box is-style-bg-sky-blue\"><div class=\"kh-box__content\">\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30b9\u30ef\u30fc\u30c9\u8981\u4ef6\uff08\u4f8b\uff1a\u8907\u96d1\u306a\u6587\u5b57\u5217\u306b\u3059\u308b\u3001\u540c\u3058\u6587\u5b57\u5217\u3092\u4f7f\u3044\u56de\u3055\u306a\u3044\uff09<\/li>\n\n\n\n<li>\u591a\u8981\u7d20\u8a8d\u8a3c\u306e\u63a1\u7528\uff08\u4f8b\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u52a0\u3048\u3066\u8a8d\u8a3c\u30b3\u30fc\u30c9\u3092\u63a1\u7528\u3059\u308b\uff09<\/li>\n\n\n\n<li>\u9001\u53d7\u4fe1\u306e\u5236\u9650\uff08\u4f8b\uff1a\u79c1\u7684\u5229\u7528\u3092\u8a8d\u3081\u306a\u3044\uff09<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316\uff08\u4f8b\uff1a\u4e00\u5b9a\u30ec\u30d9\u30eb\u306e\u60c5\u5831\u8cc7\u7523\u3092\u542b\u3080\u5834\u5408\u306f\u6697\u53f7\u5316\u3057\u3066\u9001\u4fe1\u3059\u308b\uff09<\/li>\n\n\n\n<li>\u30ea\u30f3\u30af\u306e\u53d6\u308a\u6271\u3044\uff08\u4f8b\uff1a\u4e0d\u660e\u306a\u30ea\u30f3\u30af\u3092\u958b\u304b\u306a\u3044\uff09<\/li>\n\n\n\n<li>\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306e\u53d6\u308a\u6271\u3044\uff08\u4f8b\uff1a\u958b\u304f\u524d\u306b\u30a6\u30a4\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3059\u308b\uff09<\/li>\n\n\n\n<li>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u66f4\u65b0\uff08\u4f8b\uff1a\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u901a\u77e5\u304c\u3042\u308c\u3070\u5fc5\u305a\u66f4\u65b0\u3059\u308b\uff09<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u7ba1\u7406\uff08\u4f8b\uff1a\u9001\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u3092\u3007\u30f6\u6708\u4fdd\u5b58\u3059\u308b\uff09<\/li>\n\n\n\n<li>\u5f93\u696d\u54e1\u6559\u80b2\uff08\u4f8b\uff1a\u3007\u30f6\u6708\u306b\u4e00\u5ea6\u8b1b\u7fd2\u4f1a\u3092\u884c\u3046\u3001\u629c\u304d\u6253\u3061\u30c6\u30b9\u30c8\u3092\u5b9f\u65bd\u3059\u308b\uff09<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p>\u306a\u304a\u3001\u5229\u7528\u898f\u5247\u3068\u3068\u3082\u306b\u5b9f\u65bd\u624b\u9806\u3092\u793a\u3059\u3053\u3068\u3082\u5fc5\u8981\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u591a\u8981\u7d20\u8a8d\u8a3c\u3084\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316\u3092\u30eb\u30fc\u30eb\u5316\u3057\u3066\u3082\u3001\u305d\u306e\u65b9\u6cd5\u304c\u5206\u304b\u3089\u306a\u3044\u5f93\u696d\u54e1\u304c\u3044\u308c\u3070\u3001\u5bfe\u7b56\u3092\u5fb9\u5e95\u3057\u3066\u3082\u3089\u3048\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5185\u5bb9\u2462\u7ba1\u7406\u65b9\u6cd5\u3084\u7dca\u6025\u6642\u306e\u5bfe\u51e6\u6cd5<\/h3>\n\n\n\n<p>\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u304c\u5b88\u3089\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u300d\u3092\u3069\u306e\u3088\u3046\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u304f\u306e\u304b\u3001\u307e\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306b\u53cd\u3059\u308b\u884c\u52d5\u304c\u3042\u3063\u305f\u5834\u5408\u306e\u5bfe\u51e6\u6cd5\u3001\u8cac\u4efb\u306e\u6240\u5728\u306a\u3069\u3092\u660e\u78ba\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3055\u3089\u306b\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u304c\u7591\u308f\u308c\u308b\u5834\u5408\u306b\u300c\u8ab0\u306b\u30fb\u3069\u306e\u3088\u3046\u306b\u5831\u544a\u3059\u308b\u306e\u304b\u300d\u300c\u88ab\u5bb3\u62e1\u5927\u3092\u9632\u3050\u305f\u3081\u306b\u884c\u3046\u884c\u52d5\u300d\u3068\u3044\u3063\u305f\u5bfe\u51e6\u6cd5\u3082\u8a18\u8f09\u3057\u307e\u3059\u3002\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30de\u30cd\u30b8\u30e1\u30f3\u30c8\u306b\u304a\u3051\u308b\u7d44\u7e54\u56f3\u3084\u5831\u544a\u306e\u9806\u5e8f\u3092\u793a\u3057\u305f\u30d5\u30ed\u30fc\u30c1\u30e3\u30fc\u30c8\u3082\u7528\u610f\u3059\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u306a\u304a\u3001\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u3059\u308b\u5177\u4f53\u7684\u306a\u5bfe\u7b56\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u5206\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\t\t<div class=\"kh-blog-card\">\n\t\t\t\t\t\t\t<figure class=\"kh-blog-card__thumbnail\">\n\t\t\t\t\t<img decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/www.kagoya.jp\/howto\/wp-content\/uploads\/mail_securityimg_catch.jpg\" class=\"kh-blog-card__image wp-post-image\" alt=\"\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u306f\uff1f\u5fc5\u8981\u6027\u3084\u4e3b\u306a\u8105\u5a01\u3001\u5bfe\u7b56\u3001\u8a2d\u5b9a\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\" \/>\t\t\t\t<\/figure>\n\t\t\t\t\t\t<div class=\"kh-blog-card__text\">\n\t\t\t\t<p class=\"kh-blog-card__title\"><a href=\"https:\/\/www.kagoya.jp\/howto\/engineer\/communication\/mailsecurity\/\">\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u306f\uff1f\u5fc5\u8981\u6027\u3084\u4e3b\u306a\u8105\u5a01\u3001\u5bfe\u7b56\u3001\u8a2d\u5b9a\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/a><\/p>\n\t\t\t\t<p class=\"kh-blog-card__description\">\u30d3\u30b8\u30cd\u30b9\u306b\u304a\u3044\u3066\u3001\u30e1\u30fc\u30eb\u306f\u793e\u5185\u30fb\u793e\u5916\u3068\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u3068\u308b\u305f\u3081\u306e\u624b\u6bb5\u3068\u3057\u3066\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u3001\u30e1\u30fc\u30eb\u304c\u539f\u56e0\u3068\u306a\u308a\u3055\u307e\u3056\u307e\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u4e8b\u6545\u30fb\u88ab\u5bb3\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u8ab0\u3082\u304c\u77e5\u308b\u3068\u3053\u308d\u3067\u3059\u3002\u30e1\u30fc\u30eb\u3092\u60aa\u7528\u3057\u305f\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3084\u8aa4\u9001\u4fe1\u306a\u3069\u306b\u3088\u308a\u3001\u5927\u304d\u306a\u88ab\u5bb3\u304c\u767a\u751f\u3057\u305f\u3068\u3044\u3046\u30cb\u30e5\u30fc\u30b9\u306f\u3088\u304f\u805e\u304b\u308c\u307e\u3059\u3002 \u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001\u30e1\u30fc\u30eb\u3092\u8d77\u56e0\u3068\u3057\u305f\u30ea\u30b9\u30af\u3092\u9632\u3050\u305f\u3081\u306b\u3082\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea&hellip;<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n\n\n<h2 class=\"wp-block-heading\">\u30dd\u30ea\u30b7\u30fc\u306e\u4f5c\u6210\u3068\u904b\u7528\u624b\u9806<\/h2>\n\n\n\n<p>\u4f01\u696d\u3067\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3092\u4f5c\u6210\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u624b\u9806\u3067\u884c\u3046\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"kh-box\"><div class=\"kh-box__content\">\n<ol class=\"wp-block-list\">\n<li>\u7ba1\u7406\u4f53\u5236\u306e\u69cb\u7bc9<\/li>\n\n\n\n<li>\u5b88\u308b\u3079\u304d\u60c5\u5831\u8cc7\u7523\u306e\u6d17\u3044\u51fa\u3057\u30fb\u30ea\u30b9\u30af\u5206\u6790<\/li>\n\n\n\n<li>\u30ea\u30b9\u30af\u56de\u907f\u306b\u5411\u3051\u305f\u5bfe\u7b56\u30fb\u898f\u5b9a\u306e\u7acb\u6848<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u5f93\u696d\u54e1\u3078\u306e\u30dd\u30ea\u30b7\u30fc\u306e\u914d\u5e03\u30fb\u6d78\u900f\u3068\u7ba1\u7406<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u7ba1\u7406\u4f53\u5236\u306e\u69cb\u7bc9<\/h3>\n\n\n\n<p><strong><span class=\"kh-marker-blue\">\u30e1\u30fc\u30eb\u3092\u542b\u3081\u305f\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306f\u3001\u7d4c\u55b6\u9663\u3082\u542b\u3081\u3066\u7d44\u7e54\u5168\u4f53\u3067\u884c\u3046\u3053\u3068\u304c\u57fa\u672c<\/span><\/strong>\u3067\u3059\u3002\u305f\u3063\u305f\u4e00\u53f0\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u306e\u4fb5\u5165\u3067\u3082\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u88ab\u5bb3\u306f\u77ed\u6642\u9593\u3067\u62e1\u5927\u3059\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u500b\u4eba\u60c5\u5831\u306e\u6f0f\u3048\u3044\u3068\u306a\u308c\u3070\u5916\u90e8\u3078\u306e\u5831\u544a\u3082\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u300c\u6700\u521d\u306b\u3069\u3053\u3078\u5831\u544a\u3055\u305b\u3001\u8ab0\u304c\u3069\u306e\u3088\u3046\u306b\u5bfe\u51e6\u3059\u308b\u306e\u304b\u300d\u300c\u5916\u90e8\u3078\u306e\u9023\u7d61\u306f\u8ab0\u304c\u884c\u3046\u306e\u304b\u300d\u306a\u3069\u3001\u57fa\u76e4\u3068\u306a\u308b\u4f53\u5236\u3092\u69cb\u7bc9\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5b88\u308b\u3079\u304d\u60c5\u5831\u8cc7\u7523\u306e\u6d17\u3044\u51fa\u3057\u30fb\u30ea\u30b9\u30af\u5206\u6790<\/h3>\n\n\n\n<p>\u4f01\u696d\u306b\u3088\u3063\u3066\u5b88\u308b\u3079\u304d\u60c5\u5831\u8cc7\u7523\u306e\u6240\u5728\u3084\u5185\u5bb9\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4e8b\u67c4\u3092\u6574\u7406\u3057\u3001\u5bfe\u7b56\u3084\u898f\u5b9a\u306e\u7acb\u6848\u306b\u3064\u306a\u3052\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"kh-box is-style-bg-sky-blue\"><div class=\"kh-box__content\">\n<ul class=\"wp-block-list\">\n<li>\u60c5\u5831\u8cc7\u7523\u306e\u7a2e\u985e\u3068\u6d41\u51fa\u6642\u306b\u8d77\u3053\u308a\u5f97\u308b\u30ea\u30b9\u30af\uff08\u512a\u5148\u9806\u4f4d\u306e\u691c\u8a0e\uff09<\/li>\n\n\n\n<li>\u60c5\u5831\u306e\u6d41\u51fa\u30ea\u30b9\u30af\u304c\u8003\u3048\u3089\u308c\u308b\u5177\u4f53\u7684\u306a\u5834\u9762<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p>\u4f01\u696d\u306e\u904b\u55b6\u306b\u304a\u3044\u3066\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30de\u30cd\u30b8\u30e1\u30f3\u30c8\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u304c\u3001\u4e88\u7b97\u304c\u9650\u3089\u308c\u3066\u3044\u308b\u5834\u5408\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u5b88\u308b\u3079\u304d\u60c5\u5831\u8cc7\u7523\u306b\u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002<span class=\"kh-marker-blue\"><strong>\u512a\u5148\u9806\u4f4d\u304c\u9ad8\u3044\u60c5\u5831\u306f\u3001\u30b3\u30b9\u30c8\u3092\u304b\u3051\u3066\u3067\u3082\u3057\u3063\u304b\u308a\u5b88\u308b<\/strong><\/span>\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u300c\u60c5\u5831\u304c\u3069\u306e\u30eb\u30fc\u30c8\u3067\u6d41\u51fa\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u300d\u304c\u5206\u304b\u308c\u3070\u3001\u5f93\u696d\u54e1\u306b\u6307\u793a\u3059\u3079\u304d\u5177\u4f53\u7684\u306a\u5bfe\u7b56\u3082\u898b\u3048\u3066\u304f\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. 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\u304b\u3089\u4f5c\u6210\u3059\u308b\u306e\u306f\u5927\u5909\u3067\u3059\u3002<br>\u4ee5\u4e0b\u306b\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u4f5c\u6210\u306e\u30d2\u30f3\u30c8\u306b\u306a\u308b\u30da\u30fc\u30b8\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3069\u3061\u3089\u3082\u30e1\u30fc\u30eb\u3088\u308a\u5e83\u7bc4\u56f2\u306a\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u4f5c\u6210\u652f\u63f4\u8cc7\u6599\u3067\u3059\u304c\u3001\u30e1\u30fc\u30eb\u306b\u95a2\u3059\u308b\u898f\u5b9a\u306e\u8a18\u8f09\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"kh-box has-label\"><div class=\"kh-box__label\">\u5916\u90e8\u30ea\u30f3\u30af<\/div><div 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class=\"kh-marker-blue\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u304c\u5f93\u696d\u54e1\u5168\u54e1\u306e\u76ee\u306b\u5165\u308b\u3088\u3046\u3001\u914d\u5e03\u306e\u65b9\u6cd5\u306f\u5de5\u592b\u3057\u307e\u3057\u3087\u3046<\/span><\/strong>\u3002\u5168\u54e1\u304c\u30e1\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u30e1\u30fc\u30eb\u3067\u306e\u914d\u5e03\u3082\u6709\u52b9\u3067\u3059\u3002\u307e\u305f\u3001\u4f01\u696d\u306b\u3088\u3063\u3066\u306f\u8a93\u7d04\u66f8\u3078\u306e\u30b5\u30a4\u30f3\u3092\u6c42\u3081\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<br>\u3055\u3089\u306b\u3001\u4e07\u304c\u4e00\u306e\u4e8b\u614b\u306b\u5099\u3048\u3001\u5f93\u696d\u54e1\u304c\u3044\u3064\u3067\u3082\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3092\u898b\u8fd4\u305b\u308b\u3088\u3046\u306a\u74b0\u5883\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u904b\u7528\u958b\u59cb\u4ee5\u964d\u306f\u3001\u898f\u5b9a\u306b\u3042\u308b\u30ea\u30b9\u30af\u56de\u907f\u306e\u5bfe\u7b56\u304c\u304d\u3061\u3093\u3068\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306a\u3069\u3082\u4f7f\u3044\u306a\u304c\u3089\u7ba1\u7406\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u5f93\u696d\u54e1\u306e\u53cd\u5fdc\u3082\u898b\u306a\u304c\u3089PDCA\u30b5\u30a4\u30af\u30eb\u3092\u56de\u3057\u3001\u9069\u5b9c\u6539\u5584\u3092\u56f3\u3063\u3066\u3044\u304f\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d7\u30ed\u306e\u529b\u3082\u501f\u308a\u3066\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b<\/h2>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u3054\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306b\u3001\u30e1\u30fc\u30eb\u306f\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3067\u72d9\u308f\u308c\u3084\u3059\u3044\u3082\u306e\u3067\u3059\u3002\u60c5\u5831\u6f0f\u3048\u3044\u306a\u3069\u306e\u30ea\u30b9\u30af\u3092\u4e0b\u3052\u308b\u305f\u3081\u3001\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3092\u4f5c\u6210\u3057\u3001\u5f93\u696d\u54e1\u306b\u5bfe\u7b56\u3092\u6d78\u900f\u3055\u305b\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u5f93\u696d\u54e1\u4e00\u4eba\u3072\u3068\u308a\u304c\u5c3d\u529b\u3057\u3066\u3082\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3092\u5b8c\u5168\u306b\u9632\u3050\u3053\u3068\u306f\u56f0\u96e3\u3067\u3059\u3002\u3067\u304d\u308b\u9650\u308a\u30ea\u30b9\u30af\u3092\u4e0b\u3052\u308b\u305f\u3081\u3001\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u81ea\u4f53\u306e\u898b\u76f4\u3057\u3082\u884c\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"kh-box has-label\"><div class=\"kh-box__label\">\u5b9a\u984d\u3067\u5b89\u5fc3\u30fb\u4fbf\u5229\u306a\u30e1\u30fc\u30eb\u30d7\u30e9\u30f3<\/div><div class=\"kh-box__content\">\n<p>KAGOYA\u3067\u306f\u3001\u5b9a\u984d\u306b\u3066\u30a2\u30c9\u30ec\u30b9\u7121\u5236\u9650\u3067\u5229\u7528\u3067\u304d\u308b\u30e1\u30fc\u30eb\u30d7\u30e9\u30f3\u3092\u3054\u7528\u610f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>1\u30f6\u6708550\u5186\u3067\u5229\u7528\u3067\u304d\u308b\u300c\u5171\u7528\u30bf\u30a4\u30d7\u300d\u3084SPF\u30fbDKIM\u30fbDMARC\u5bfe\u5fdc\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u30c8\u30e9\u30d6\u30eb\u3092\u56de\u907f\u3059\u308b\u300c\u30bb\u30ad\u30e5\u30a2\u30d9\u30fc\u30b7\u30c3\u30af\u300d\u306a\u3069\u3001\u30d7\u30e9\u30f3\u3082\u8c4a\u5bcc\u3067\u3059\u3002\u3082\u3061\u308d\u3093\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3082\u5145\u5b9f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\t\t<div class=\"kh-blog-card is-no-image is-external\">\n\t\t\t\t\t\t<div class=\"kh-blog-card__text\">\n\t\t\t\t<p class=\"kh-blog-card__title\"><a href=\"https:\/\/www.kagoya.jp\/kir\/mail\/?argument=vqHX23Xs&#038;dmai=a5fc25f20e1d73\" target=\"_blank\" rel=\"noopener\">KAGOYA MAIL | \u6708\u984d\u5b9a\u984d\u3067\u5229\u7528\u3067\u304d\u308b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc<\/a><\/p>\n\t\t\t\t<p 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\u5927\u5207\u306a\u60c5\u5831\u8cc7\u7523\u3092\u8105\u5a01\u304b\u3089\u5b88\u308b\u65b9\u6cd5\u3068\u3057\u3066\u3001\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u306e\u4f5c\u6210\u30fb\u904b\u7528\u304c\u3042\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u5229\u7528\u306b\u95a2\u3059\u308b\u57fa\u672c\u65b9\u91dd\u3084\u898f\u5247\u3092\u5f93\u696d\u54e1\u306b\u5468\u77e5\u3057\u3001\u5bfe\u7b56\u3092\u5fb9\u5e95\u3057\u307e\u3057\u3087\u3046\u3002 \u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3068\u306f \u30e1 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