{"id":2262,"date":"2024-01-15T13:14:33","date_gmt":"2024-01-15T04:14:33","guid":{"rendered":"https:\/\/bmb.jp\/maildeliver\/?p=2262"},"modified":"2024-01-31T16:57:18","modified_gmt":"2024-01-31T07:57:18","slug":"gmail-guideline-202402","status":"publish","type":"post","link":"https:\/\/bmb.jp\/maildeliver\/gmail-guideline-202402","title":{"rendered":"\u30102024\u5e742\u6708\u304b\u3089\u3011Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5909\u66f4\uff01\u5bfe\u5fdc\u65b9\u6cd5\u307e\u3068\u3081"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"628\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/01\/gmail-guideline-202402.jpg\" alt=\"\u30102024\u5e742\u6708\u304b\u3089\u3011Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5909\u66f4\uff01\u5bfe\u5fdc\u65b9\u6cd5\u307e\u3068\u3081\" class=\"wp-image-2268\"\/><\/figure>\n\n\n\n<p class=\"has-swl-pale-01-background-color has-background\">\u6700\u7d42\u66f4\u65b0\u65e5\uff1a2024\u5e741\u670824\u65e5<br>\u66f4\u65b0\u5185\u5bb9\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/gmail-guideline-202402#index_id16\" target=\"_blank\" rel=\"noopener\" title=\"\">List-Unsubscribe\u306b\u3064\u3044\u3066<\/a><br><br>\u6700\u65b0\u60c5\u5831\u306fGmail \u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u82f1\u8a9e\u7248\u304b\u3089\u66f4\u65b0\u3055\u308c\u307e\u3059\u3002\u6700\u65b0\u60c5\u5831\u3092\u3044\u3061\u65e9\u304f\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u30ea\u30f3\u30af\u304b\u3089\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<br><br>\u82f1\u8a9e\u7248Gmail \u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff1a<a href=\"https:\/\/support.google.com\/a\/answer\/81126\" target=\"_blank\" rel=\"noopener\" title=\"\">Email sender guidelines<\/a><br>FAQ\uff1a<a href=\"https:\/\/support.google.com\/a\/answer\/14229414?sjid=17409885750571741970-AP\" target=\"_blank\" rel=\"noopener\" title=\"\">Email sender guidelines FAQ<\/a><\/p>\n\n\n\n<p>2023\u5e7410\u6708\u3001Gmail\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u6700\u65b0\u7248\u306b\u66f4\u65b0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p><strong>\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff1a<a href=\"https:\/\/support.google.com\/mail\/answer\/81126\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/support.google.com\/mail\/answer\/81126<\/a><\/strong><\/p>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u3082\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u52d5\u753b\u3084\u97f3\u58f0\u3067\u3082\u78ba\u8a8d\u3057\u305f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u52d5\u753b\u3082\u4f75\u305b\u3066\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"2024\u5e742\u6708\u306b\u66f4\u65b0\u3055\u308c\u308bGmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u5fb9\u5e95\u89e3\u8aac\u3057\u307e\u3059\uff01\u30101\u65e55000\u4ef6\u4ee5\u4e0a\u306e\u914d\u4fe1\u306f\u5bfe\u5fdc\u5fc5\u9808\uff01\u3011\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/vEifDLG1f3Y?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>\u4eca\u56de\u306eGmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5bfe\u8c61\u8005\u306f\u5927\u304d\u304f2\u3064\u306b\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u3059\u3079\u3066<\/li>\n\n\n\n<li>1\u65e5\u3042\u305f\u308a5,000\u901a\u4ee5\u4e0a\u9001\u308b\u30e1\u30fc\u30eb\u9001\u4fe1\u8005<\/li>\n<\/ul>\n\n\n\n<p>\u8a18\u4e8b\u5185\u3067\u306f\u4e21\u8005\u306b\u5171\u901a\u3059\u308b\u5185\u5bb9\u3068\u305d\u308c\u305e\u308c\u5fc5\u8981\u306a\u5bfe\u5fdc\u3092\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u306e\u3067\u3001\u6700\u5f8c\u307e\u3067\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u73fe\u4ee3\u3067\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306b\u3088\u308b\u8a50\u6b3a\u88ab\u5bb3\u3084\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u306b\u3088\u308b\u500b\u4eba\u60c5\u5831\u306e\u6f0f\u6d29\u306a\u3069\u304c\u5e74\u3005\u5897\u52a0\u3057\u3066\u304a\u308a\u554f\u984c\u8996\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u80cc\u666f\u304b\u3089\u3082\u3001Google\u306f\u4e0a\u8a18\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u516c\u958b\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u4fdd\u8b77\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306f<strong><span class=\"swl-marker mark_yellow\">\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u4e00\u6589\u914d\u4fe1\u3084\u30e1\u30eb\u30de\u30ac\u3092\u914d\u4fe1\u3057\u3066\u3044\u308b\u4eba\u3060\u3051\u3067\u306a\u304f\u3001\u666e\u6bb5\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u4eba\u306f\u5fc5\u305a\u77e5\u3063\u3066\u304a\u3044\u3066\u3044\u305f\u3060\u304d\u305f\u3044\u5185\u5bb9<\/span><\/strong>\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u7d39\u4ecb\u3059\u308b\u5185\u5bb9\u3092\u5b9f\u65bd\u3067\u304d\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30e1\u30fc\u30eb\u306e\u6b63\u5e38\u306a\u914d\u4fe1\u304c\u59a8\u3052\u3089\u308c\u305f\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5206\u985e\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u6700\u65b0\u7248\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u8a73\u7d30\u306a\u89e3\u8aac\u3060\u3051\u3067\u306a\u304f\u3001SPF\u3001DKIM\u3001DMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1360\" height=\"350\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/01\/gmail\u8981\u4ef6\u5f37\u5316_\u30d0\u30ca\u30fc_1360x350-1.png\" alt=\"\" class=\"wp-image-2265\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Gmail\u306e\u300c\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u300d\u6982\u8981<\/h2>\n\n\n\n<p>Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5909\u66f4\u306b\u3088\u308a\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306f\u3055\u307e\u3056\u307e\u306a\u5bfe\u5fdc\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5927\u304d\u304f\u5206\u3051\u308b\u3068\u4ee5\u4e0b\u306e3\u70b9\u304c\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>SPF\u3084DKIM\u306a\u3069\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u3068\u4fe1\u7528\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b<\/li>\n\n\n\n<li>\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gmail\u65b0\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u8981\u4ef6<\/h3>\n\n\n\n<p>\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5185\u5bb9\u306f\u591a\u5c90\u306b\u308f\u305f\u308a\u307e\u3059\u304c\u3001<strong><span class=\"swl-marker mark_yellow\">\u300cSPF\u3001DKIM\u3001DMARC\u300d\u3068\u3044\u3063\u305f\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u3064\u3044\u3066\u304c\u7279\u306b\u91cd\u8981<\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u540c\u3058\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u304a\u3044\u3066\u30821\u65e5\u3042\u305f\u308a5,000\u901a\u4ee5\u4e0a\u9001\u4fe1\u3059\u308b\u5834\u5408\u3068\u3057\u306a\u3044\u5834\u5408\u3067\u8a2d\u5b9a\u306e\u6761\u4ef6\u306a\u3069\u306f\u5909\u308f\u308a\u307e\u3059\u3002\u305d\u306e\u4ed6\u306b\u3082\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5185\u5bb9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u306bTLS\u63a5\u7d9a\u3092\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c0.30%\u4ee5\u4e0a\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b<\/li>\n\n\n\n<li>\u30d8\u30c3\u30c0From\u3092Gmail\u306b\u306a\u308a\u3059\u307e\u3055\u306a\u3044<\/li>\n<\/ul>\n\n\n\n<p>\u8a73\u7d30\u306f\u5f8c\u8ff0\u3057\u307e\u3059\u306e\u3067\u5fc5\u305a\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a72\u5f53\u3059\u308bGmail\u30a2\u30ab\u30a6\u30f3\u30c8<\/h3>\n\n\n\n<p>\u8a72\u5f53\u3059\u308bGmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u500b\u4eba\u7528Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u306a\u308a\u3001Google Workspace\u306e\u9001\u4fe1\u8005\u306f\u5bfe\u8c61\u5916\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"swell-block-capbox cap_box is-style-onborder_ttl2\"><div class=\"cap_box_ttl\"><span>\u500b\u4eba\u7528Gmail\u30a2\u30ab\u30a6\u30f3\u30c8<\/span><\/div><div class=\"cap_box_content\">\n<ul class=\"wp-block-list\">\n<li>\u672b\u5c3e\u304c\u300c@gmail.com\u300d<\/li>\n\n\n\n<li>\u672b\u5c3e\u304c\u300c@googlemail.com\u300d<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p>Google Workspace\u3092\u4f7f\u7528\u3057\u3066\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u5834\u5408\u306f\u3001\u5225\u9014<a href=\"https:\/\/support.google.com\/a\/answer\/178266?sjid=12925886620181967399-AP\">Gmail\u3067\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u3084\u4e0d\u6b63\u884c\u70ba\u306b\u95a2\u3059\u308b\u898f\u5b9a<\/a>\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044<\/p>\n\n\n\n<p>\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u6982\u8981\u304c\u767a\u8868\u3055\u308c\u305f\u5f53\u521d\u306f\u300cGmail\u30a2\u30ab\u30a6\u30f3\u30c8\u300d\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u30012023\u5e7412\u6708\u4e0a\u65ec\u306b\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u6700\u65b0\u7248\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u300c\u5bfe\u8c61\u306f\u500b\u4eba\u7528Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u307f\u300d\u3068\u660e\u8a18\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u4eca\u5f8c\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u3088\u308a\u3001Google Workspace\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3082\u5bfe\u8c61\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u65e9\u3081\u306bSPF\u3001DKIM\u3001DMARC\u306e\u8a2d\u5b9a\u306a\u3069\u3092\u884c\u3046\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3044\u3064\u307e\u3067\u306b\u5bfe\u5fdc\u3092\u3059\u308c\u3070\u3044\u3044\u306e\u304b<\/h3>\n\n\n\n<p><strong><span class=\"swl-marker mark_yellow\">\u65b0\u3057\u3044Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306f\u30012024\u5e742\u67081\u65e5\u304b\u3089\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/span><\/strong><\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u9069\u7528\u3055\u308c\u308b\u524d\u306e\u73fe\u5728\u3067\u3082\u3001SPF\u3001DKIM\u3001DMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u304c\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u305f\u3081\u3001\u300c2\u6708\u306b\u306a\u3063\u3066\u304b\u3089\u8a2d\u5b9a\u3092\u9032\u3081\u3088\u3046\u300d\u300c\u3082\u30462\u6708\u3092\u904e\u304e\u305f\u304b\u3089\u958b\u304d\u76f4\u3063\u3066\u3086\u3063\u304f\u308a\u9032\u3081\u308c\u3070\u3044\u3044\u3084\u300d\u3068\u3044\u3046\u8003\u3048\u3067\u306f\u306a\u304f\u3001\u3067\u304d\u308b\u9650\u308a\u65e9\u304f\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u884c\u3063\u3066\u3082\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5206\u985e\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u3002SPF\u3001DKIM\u3001DMARC\u30e1\u30fc\u30eb\u8a8d\u8a3c\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u30e1\u30fc\u30eb\u306e\u5185\u5bb9\u3084\u9001\u4fe1\u5143\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u984c\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306e\u8981\u4ef6<\/h2>\n\n\n\n<p>\u8a18\u4e8b\u306e\u5192\u982d\u3067\u304a\u4f1d\u3048\u3057\u305f\u3088\u3046\u306b\u3001\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5bfe\u8c61\u8005\u306f\u5927\u304d\u304f2\u3064\u306b\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u3053\u3053\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u8981\u4ef6\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3082\u3061\u308d\u3093\u30011\u65e5\u3042\u305f\u308a5,000\u901a\u4ee5\u4e0a\u9001\u308b\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u3082\u300c\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u300d\u306b\u542b\u307e\u308c\u307e\u3059\u306e\u3067\u5fc5\u305a\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SPF\u307e\u305f\u306fDKIM\u306e\u8a2d\u5b9a<\/h3>\n\n\n\n<p>\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">SPF\u304bDKIM\u306e\u3044\u305a\u308c\u304b\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c<\/span><\/strong>\u3092\u5fc5\u305a\u5c0e\u5165\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div class=\"swell-block-capbox cap_box is-style-onborder_ttl2\"><div class=\"cap_box_ttl\"><span>SPF\u3068\u306f<\/span><\/div><div class=\"cap_box_content\">\n<p>SPF\u3068\u306f\u300cSender Policy Framework\u300d\u306e\u7565\u8a9e\u3067\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u304c\u8a50\u79f0\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>SPF\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3067\u3042\u308bDNS\u306b\u5bfe\u3057\u3066\u300cSPF\u30ec\u30b3\u30fc\u30c9\u300d\u3068\u547c\u3070\u308c\u308b\u60c5\u5831\u3092\u767b\u9332\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u304c\u6b63\u5f53\u306a\u30b5\u30fc\u30d0\u30fc\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u53cd\u5bfe\u306b\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u5185\u5bb9\u3068\u3001\u9001\u4fe1\u30e1\u30fc\u30eb\u306b\u8a18\u8f09\u3055\u308c\u305f\u60c5\u5831\u306b\u7570\u306a\u308b\u70b9\u304c\u3042\u308c\u3070\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u5224\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"swell-block-capbox cap_box is-style-onborder_ttl2\"><div class=\"cap_box_ttl\"><span>DKIM\u3068\u306f<\/span><\/div><div class=\"cap_box_content\">\n<p>DKIM\u3068\u306f\u300cDomain Keys Identified Mail\u300d\u306e\u7565\u3067\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u304a\u3051\u308b\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>DKIM\u3067\u306f\u3001\u9001\u4fe1\u8005\u306f\u79d8\u5bc6\u9375\u3067\u30e1\u30fc\u30eb\u306b\u7f72\u540d\u3057\u3001\u53d7\u4fe1\u8005\u306f\u516c\u958b\u9375\u3067\u7f72\u540d\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u9001\u4fe1\u8005\u306e\u6b63\u5f53\u6027\u3068\u30e1\u30fc\u30eb\u306e\u6539\u3056\u3093\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u30e1\u30fc\u30eb\u306e\u5b89\u5168\u6027\u3092\u53d7\u4fe1\u8005\u306b\u5bfe\u3057\u3066\u30a2\u30d4\u30fc\u30eb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u632f\u308a\u5206\u3051\u3089\u308c\u3066\u3057\u307e\u3063\u305f\u308a\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306b\u5f3e\u304b\u308c\u3066\u3057\u307e\u3046\u306a\u3069\u306e\u30ea\u30b9\u30af\u3092\u4e0b\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>SPF\u30fbDKIM\u3068\u3082\u306b\u300c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u300d\u3068\u3057\u3066\u77e5\u3089\u308c\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u304c\u7570\u306a\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u8a2d\u5b9a\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u30011\u65e5\u3042\u305f\u308a5,000\u901a\u4ee5\u4e0a\u9001\u308b\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u5834\u5408\u306fSPF\u3068DKIM\u306b\u52a0\u3048\u3066DMARC\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e3\u3064\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/spf-record\" target=\"_blank\" rel=\"noopener\" title=\"\">\u3010\u512a\u3057\u304f\u89e3\u8aac\u3011SPF\u30ec\u30b3\u30fc\u30c9\u3068\u306f\uff1f\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u3050\u4ed5\u7d44\u307f\u3084\u8a2d\u5b9a\u65b9\u6cd5<\/a><\/p>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/mail-delivery\/dkim\" target=\"_blank\" rel=\"noopener\" title=\"\">\u3010\u56f3\u89e3\u3042\u308a\u3011DKIM\u306e\u5f79\u5272\u30923\u5206\u3067\u89e3\u8aac\uff01\u30c9\u30e1\u30a4\u30f3\u9001\u4fe1\u6280\u8853\u306eDKIM\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3088\u3046<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6709\u52b9\u306a\u6b63\u5f15\u304d\u304a\u3088\u3073\u9006\u5f15\u304dDNS\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a<\/h3>\n\n\n\n<p>\u9001\u4fe1\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u307e\u305f\u306fIP\u306b\u3001\u6709\u52b9\u306a\u6b63\u5f15\u304d\u304a\u3088\u3073\u9006\u5f15\u304dDNS\u30ec\u30b3\u30fc\u30c9\uff08PTR\u30ec\u30b3\u30fc\u30c9\u3068\u3082\u547c\u3070\u308c\u307e\u3059\uff09\u304c\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>PTR\u30ec\u30b3\u30fc\u30c9\u306b\u3088\u3063\u3066\u3001\u9001\u4fe1\u5143\u30db\u30b9\u30c8\u540d\u304c\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u691c\u8a3c\u3055\u308c\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306fPTR\u30ec\u30b3\u30fc\u30c9\u3067\u6307\u5b9a\u3055\u308c\u305f\u30db\u30b9\u30c8\u540d\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e1\u30fc\u30eb\u9001\u4fe1\u306bTLS\u63a5\u7d9a\u3092\u4f7f\u7528<\/h3>\n\n\n\n<p>TLS\u63a5\u7d9a\u306f\u3001SSL\/TLS\u3092\u4f7f\u7528\u3057\u3066\u6697\u53f7\u5316\u3055\u308c\u305f\u901a\u4fe1\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u4e2d\u306bTLS\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u9001\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb\u304c\u7b2c\u4e09\u8005\u306b\u3088\u3063\u3066\u8aad\u307f\u53d6\u3089\u308c\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u4f7f\u7528\u3055\u308c\u308bSMTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u901a\u4fe1\u7d4c\u8def\u3092\u6697\u53f7\u5316\u3059\u308b\u624b\u6bb5\u3068\u3057\u3066STARTTLS\u306b\u5bfe\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001Google\u304c\u63d0\u4f9b\u3057\u3066\u3044\u308b\u900f\u660e\u6027\u30ec\u30dd\u30fc\u30c8\u306e\u300c<a href=\"https:\/\/transparencyreport.google.com\/safer-email\/overview?hl=ja\" target=\"_blank\" rel=\"noopener\" title=\"\">\u914d\u4fe1\u4e2d\u306e\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316<\/a>\u300d\u306b\u3088\u308b\u3068\u3001\u9001\u4fe1\u30e1\u30fc\u30eb\u306e95\uff05\u304c\u6697\u53f7\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e99\uff05\u304c\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\uff082024\u5e741\u670812\u65e5\u6642\u70b9\uff09<\/p>\n\n\n\n<p>\u81ea\u793e\u3067\u69cb\u7bc9\u3057\u305f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u306fTLS\u306e\u8a2d\u5b9a\u304c\u3055\u308c\u3066\u3044\u308b\u304b\u5fc5\u305a\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u540c\u69d8\u306b\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u4f1a\u793e\u306b\u78ba\u8a8d\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/blastmail.jp\/blog\/spam\/starttls-mailsecurity\" target=\"_blank\" rel=\"noopener\" title=\"\">STARTTLS\u3068\u306f\uff1f\u5c0e\u5165\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u89e3\u8aac<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u30920.3%\u672a\u6e80\u306b\u7dad\u6301\u3059\u308b<\/h3>\n\n\n\n<p>\u53d7\u4fe1\u8005\u304b\u3089\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u3057\u3066\u5831\u544a\u300d\u3055\u308c\u305f\u5272\u5408\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">Google\u304c\u63d0\u4f9b\u3057\u3066\u3044\u308b<a href=\"https:\/\/gmail.com\/postmaster\/\">Postmaster Tools<\/a>\u3067\u5831\u544a\u3055\u308c\u308b\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u30920.10%\u672a\u6e80\u306b\u7dad\u6301\u3057\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c\u6c7a\u3057\u30660.30%\u4ee5\u4e0a\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b<\/span><\/strong>\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e00\u6642\u7684\u306b\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c\u4e0a\u304c\u3063\u305f\u3068\u3057\u3066\u3082\u3001\u666e\u6bb5\u304b\u3089\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u5272\u5408\u3092\u4f4e\u304f\u4fdd\u3063\u3066\u3044\u308b\u3068\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u3057\u3066\u30de\u30fc\u30af\u3055\u308c\u308b\u53ef\u80fd\u6027\u306f\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3067\u304d\u308b\u3060\u3051\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u5272\u5408\u3092\u4f4e\u304f\u3059\u308b\u3088\u3046\u306b\u610f\u8b58\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u53cd\u5bfe\u306b\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u5272\u5408\u304c\u9ad8\u3044\u72b6\u614b\u304c\u7d9a\u304f\u3053\u3068\u3067\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u5b9a\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u4e00\u5ea6\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u3057\u3066\u76ee\u3092\u3064\u3051\u3089\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u4fe1\u983c\u3092\u56de\u5fa9\u3057\u6539\u5584\u3059\u308b\u307e\u3067\u306b\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u4e0b\u3052\u308b\u305f\u3081\u306b\u306f\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u30aa\u30d7\u30c8\u30a4\u30f3\u304c\u53d6\u308c\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u306e\u307f\u9001\u4fe1\u3059\u308b<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u5185\u306b\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8\uff08\u89e3\u9664\u30d5\u30a9\u30fc\u30e0\uff09\u306e\u5c0e\u7dda\u3092\u5fc5\u305a\u4f5c\u308b<\/li>\n\n\n\n<li>\u9001\u4fe1\u8005\u60c5\u5831\u3092\u8a18\u8f09\u3059\u308b\uff08\u4f1a\u793e\u540d\u30fb\u6c0f\u540d\u30fb\u4f4f\u6240\u30fb\u9023\u7d61\u5148\u306a\u3069\uff09<\/li>\n\n\n\n<li>\u5b9a\u671f\u7684\u306b\u30ea\u30b9\u30c8\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u3092\u884c\u3046<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u53d7\u4fe1\u8005\u306b\u95a2\u4fc2\u306e\u306a\u3044\uff08\u5fc5\u8981\u306e\u306a\u3044\uff09\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u9001\u3089\u306a\u3044<\/li>\n\n\n\n<li>\u30a2\u30c0\u30eb\u30c8\u306a\u5185\u5bb9\u3084\u602a\u3057\u3044\u5185\u5bb9\u306e\u914d\u4fe1\u3092\u884c\u308f\u306a\u3044\u3000\u306a\u3069<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Internet Message Format \u6a19\u6e96\u306b\u5f93\u3046<\/h3>\n\n\n\n<p>Internet Message Format \u6a19\u6e96\uff08<a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc5322\" target=\"_blank\" rel=\"noopener\" title=\"\">RFC 5322<\/a>\uff09\u3068\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u30e1\u30fc\u30eb\u3092\u6b63\u3057\u304f\u5f62\u5f0f\u5316\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u306e\u3053\u3068\u3067\u3001\u3053\u308c\u306b\u6e96\u62e0\u3059\u308b\u5f62\u5f0f\u3067\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e00\u822c\u7684\u306a\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3084\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u57fa\u672c\u7684\u306b\u306fRFC\u306b\u6e96\u62e0\u3057\u3066\u3044\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u81ea\u793e\u3067\u72ec\u81ea\u306b\u958b\u767a\u3057\u305f\u30b7\u30b9\u30c6\u30e0\u3067\u30e1\u30fc\u30eb\u306e\u4f5c\u6210\u304b\u3089\u9001\u4fe1\u307e\u3067\u3092\u884c\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3042\u307e\u308a\u6c17\u306b\u3059\u308b\u5fc5\u8981\u306f\u306a\u3044\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gmail \u306e From: \u30d8\u30c3\u30c0\u30fc\u3092\u507d\u88c5\u3057\u306a\u3044<\/h3>\n\n\n\n<p>From: \u30d8\u30c3\u30c0\u30fc\u3068\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u4e0a\u3067\u8868\u793a\u3055\u308c\u308b\u5dee\u51fa\u4eba\u306e\u30a2\u30c9\u30ec\u30b9<\/span><\/strong>\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30fc\u30eb\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u30d8\u30c3\u30c0\u30fc\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u672c\u6587\u306e2\u3064\u306e\u30d1\u30fc\u30c8\u304b\u3089\u6210\u308a\u7acb\u3063\u3066\u304a\u308a\u3001\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u9001\u4fe1\u8005\u306e\u540d\u524d\u3068\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3001\u30e1\u30fc\u30eb\u306e\u4ef6\u540d\u3001\u9001\u4fe1\u65e5\u306a\u3069\u3001\u30e1\u30fc\u30eb\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u8a73\u7d30\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>From: \u30d8\u30c3\u30c0\u30fc\u306f\u9001\u4fe1\u8005\u304c\u81ea\u7531\u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u304c\u3001gmail.com\u3092\u8a2d\u5b9a\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002Gmail\u306eFrom: \u30d8\u30c3\u30c0\u30fc\u306e\u306a\u308a\u3059\u307e\u3057\u3092\u3057\u305f\u5834\u5408\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u5f71\u97ff\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u9001\u4fe1\u5143\u306f\u81ea\u793e\u306e<strong>\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3<\/strong>\u306e\u3082\u306e\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9a\u671f\u7684\u306b\u8ee2\u9001\u3092\u884c\u3046\u5834\u5408\u306fARC\u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u3059\u308b<\/h3>\n\n\n\n<p>ARC\u30d8\u30c3\u30c0\u30fc\uff08Authenticated Received Chain\uff09\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u8a18\u9332\u3057\u8ee2\u9001\u3059\u308b\u305f\u3081\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u4e00\u3064\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u308b\u904e\u7a0b\u3067\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u4fdd\u6301\u3057\u3001\u6700\u7d42\u7684\u306a\u53d7\u4fe1\u8005\u304c\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u3092\u5224\u65ad\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u969b\u306f\u672c\u8a18\u4e8b\u3067\u3082\u7d39\u4ecb\u3057\u3066\u3044\u308bSPF\u30fbDKIM\u30fbDMARC\u306a\u3069\u306e\u8a8d\u8a3c\u6280\u8853\u304c\u7528\u3044\u3089\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u305f\u308a\u30ea\u30b9\u30c8\u30b5\u30fc\u30d0\u30fc\u3092\u7d4c\u7531\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u3053\u308c\u3089\u306e\u8a8d\u8a3c\u60c5\u5831\u304c\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002ARC\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u30e1\u30fc\u30eb\u304c\u4fe1\u983c\u3067\u304d\u308b\u3082\u306e\u3067\u3042\u308b\u304b\u3092\u5224\u65ad\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30fc\u30eb\u3092\u5b9a\u671f\u7684\u306b\u8ee2\u9001\u3059\u308b\u5834\u5408\u306f\u3001\u9001\u4fe1\u30e1\u30fc\u30eb\u306bARC\u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1\u65e5\u3042\u305f\u308a5,000\u4ef6\u4ee5\u4e0a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u305f\u3081\u306e\u8981\u4ef6<\/h2>\n\n\n\n<p>\u3053\u3053\u304b\u3089\u7d39\u4ecb\u3059\u308b\u5185\u5bb9\u306f<strong><span class=\"swl-marker mark_yellow\">\u300c1\u65e5\u3042\u305f\u308a5,000\u4ef6\u4ee5\u4e0a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092Gmail\u5b9b\u306b\u9001\u4fe1\u3059\u308b\u300d\u5834\u5408\u306b\u5fc5\u8981\u306a\u8981\u4ef6<\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30eb\u30de\u30ac\u306e\u3088\u3046\u306a\u4e00\u6589\u914d\u4fe1\u306f\u3082\u3061\u308d\u3093\u3001EC\u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u7533\u3057\u8fbc\u307f\u5f8c\u306b\u9001\u3089\u308c\u308b\u81ea\u52d5\u9001\u4fe1\u30e1\u30fc\u30eb\u306a\u3069\u3001\u666e\u6bb5\u304b\u3089\u914d\u4fe1\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u3082\u5bfe\u8c61\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SPF\u304a\u3088\u3073DKIM\u306e\u8a2d\u5b9a<\/h3>\n\n\n\n<p>1\u65e5\u3042\u305f\u308a5,000\u4ef6\u4ee5\u4e0a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092Gmail\u5b9b\u306b\u9001\u4fe1\u3059\u308b\u5834\u5408\u306f\u3001<strong><span class=\"swl-fz u-fz-l\"><span class=\"swl-inline-color has-swl-deep-01-color\">SPF\u3068DKIM\u306e\u4e21\u65b9<\/span><\/span><\/strong>\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\u3001SPF\u3068DKIM\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808\u3068\u306a\u308b\u306e\u3067\u3059\u3002\u73fe\u5728\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3084MA\u30c4\u30fc\u30eb\u306a\u3069\u3092\u4f7f\u3063\u3066\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u3057\u3066\u3044\u308b\u4eba\u306f\u5229\u7528\u30b5\u30fc\u30d3\u30b9\u304cSPF\u3068DKIM\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u3059\u3050\u306b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305f5,000\u901a\u4ee5\u4e0a\u914d\u4fe1\u3059\u308b\u5834\u5408\u3001DMARC\u306e\u5c0e\u5165\u304a\u3088\u3073\u8a8d\u8a3c\uff08\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff09\u306b\u5408\u683c\u3059\u308b\u3053\u3068\u3082\u8981\u4ef6\u306b\u542b\u307e\u308c\u308b\u305f\u3081\u3001DKIM\u306f\u7b2c\u4e09\u8005\u7f72\u540d\u3067\u306f\u306a\u304f\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u306eDKIM\u7f72\u540d\uff08\u4f5c\u6210\u8005\u7f72\u540d\uff09\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DMARC\u306e\u8a2d\u5b9a<\/h3>\n\n\n\n<p>DMARC\u3068\u306f(Domain-based Message Authentication Reporting and Conformance)\u306e\u7565\u3067\u3001SPF\u30ec\u30b3\u30fc\u30c9\u3084DKIM\u7f72\u540d\u306b\u3088\u308b\u8a8d\u8a3c\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u306b\u3001\u305d\u306e\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\u3001DMARC\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u3092\u9001\u4fe1\u8005\u304c\u81ea\u3089\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"swell-block-capbox cap_box is-style-onborder_ttl2\"><div class=\"cap_box_ttl\"><span>DMARC\u306e\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528\u8a2d\u5b9a<\/span><\/div><div class=\"cap_box_content\">\n<ul class=\"wp-block-list\">\n<li>\u53d7\u4fe1\u3055\u305b\u308b\uff08none\uff09<\/li>\n\n\n\n<li>\u53d7\u4fe1\u62d2\u5426\u3055\u305b\u308b\uff08reject\uff09<\/li>\n\n\n\n<li>\u9694\u96e2\u3055\u305b\u308b\uff08quarantine\uff09<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p>Google\u306fDMARC\u306e\u4f7f\u7528\u3092\u958b\u59cb\u3059\u308b\u3068\u304d\u306f\u3001\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528\u8a2d\u5b9a\u306b<strong><span class=\"swl-marker mark_yellow\">none\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3092\u63a8\u5968<\/span><\/strong>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001DMARC\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u308b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u5b9a\u671f\u7684\u306b\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u3069\u306e\u30e1\u30fc\u30eb\u304cSPF\u8a8d\u8a3c\u3001DKIM\u8a8d\u8a3c\u3001DMARC\u8a8d\u8a3c\u306b\u5408\u683c\u3057\u3066\u3044\u308b\u304b\u3092\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306b\u306f\u6b21\u306e\u60c5\u5831\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"-list-under-dashed has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u307e\u305f\u306f\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9<\/li>\n\n\n\n<li>\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u308b\u30e1\u30fc\u30eb\u306e\u3046\u3061\u3001DMARC\u8a8d\u8a3c\u306b\u5408\u683c\u3059\u308b\u30e1\u30fc\u30eb\u306e\u5272\u5408<\/li>\n\n\n\n<li>DMARC\u306b\u5931\u6557\u3059\u308b\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u30b5\u30fc\u30d0\u30fc\u307e\u305f\u306f\u30b5\u30fc\u30d3\u30b9<\/li>\n\n\n\n<li>\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u672a\u8a8d\u8a3c\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u884c\u3046DMARC\u51e6\u7406\uff08none\u3001quarantine\u3001reject\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u3088\u308a\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f<a href=\"https:\/\/support.google.com\/a\/answer\/10032472?sjid=11848130995534953796-AP\" target=\"_blank\" rel=\"noopener\" title=\"\">\u3053\u3061\u3089\u306e\u30d8\u30eb\u30d7\u30da\u30fc\u30b8<\/a>\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u5408\u683c<\/h3>\n\n\n\n<p>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306b\u5408\u683c\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30e1\u30fc\u30eb\u306eFrom: \u30d8\u30c3\u30c0\u30fc\u304cSPF\u307e\u305f\u306fDKIM\u3067\u6307\u5b9a\u3055\u308c\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u3068\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e0a\u8ff0\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u3001\u305d\u3082\u305d\u3082SPF\u30fbDKIM\u306e\u8a2d\u5b9a\u306f\u5fc5\u9808\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u3053\u306e\u8a2d\u5b9a\u3092\u3057\u3063\u304b\u308a\u3068\u3067\u304d\u3066\u3044\u308c\u3070\u554f\u984c\u306a\u3044\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3044\u305a\u308c\u304b\u306b\u5408\u683c\u3059\u308b\u3053\u3068\u3067DMARC\u8a8d\u8a3c\u306b\u5408\u683c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>SPF\u8a8d\u8a3c\u3068SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/li>\n\n\n\n<li>DKIM\u8a8d\u8a3c\u3068DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/li>\n<\/ul>\n\n\n\n<div class=\"swell-block-capbox cap_box is-style-onborder_ttl2\"><div class=\"cap_box_ttl\"><span>SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/span><\/div><div class=\"cap_box_content\">\n<p>\u30d8\u30c3\u30c0\u30fc\u306eFrom: \u30a2\u30c9\u30ec\u30b9\u306b\u542b\u307e\u308c\u308b\u30c9\u30e1\u30a4\u30f3\u304c\u3001SPF\u8a8d\u8a3c\u306e\u5bfe\u8c61\u3068\u306a\u308b\u30c9\u30e1\u30a4\u30f3\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3001\u305d\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-capbox cap_box is-style-onborder_ttl2\"><div class=\"cap_box_ttl\"><span>DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/span><\/div><div class=\"cap_box_content\">\n<p>\u30d8\u30c3\u30c0\u30fc\u306eFrom: \u30a2\u30c9\u30ec\u30b9\u306b\u542b\u307e\u308c\u308b\u30c9\u30e1\u30a4\u30f3\u304c\u3001DKIM\u7f72\u540d\u306ed=\u30bf\u30b0\u3067\u6307\u5b9a\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3001\u305d\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u304c\u7ba1\u7406\u5bfe\u8c61\u5916\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306a\u3069\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3092\u5f37\u5316\u3059\u308b\u305f\u3081\u3001\u53b3\u683c\u30e2\u30fc\u30c9\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306b\u5909\u66f4\u3059\u308b\u307b\u3046\u304c\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3088\u308a\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f<a href=\"https:\/\/support.google.com\/a\/answer\/10032169?sjid=11848130995534953796-AP#alignment\" target=\"_blank\" rel=\"noopener\" title=\"\">\u3053\u3061\u3089<\/a>\u306e\u30d8\u30eb\u30d7\u30da\u30fc\u30b8\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u914d\u4fe1\u767b\u9332\u3092\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u89e3\u9664\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/h3>\n\n\n\n<p>\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u76ee\u7684\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u5834\u5408\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u306e\u767b\u9332\u89e3\u9664\u306b\u5bfe\u5fdc<\/span><\/strong>\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u300c\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u76ee\u7684\u3067\u306f\u306a\u3044\u300d\u3068\u81ea\u8eab\u3067\u601d\u3063\u3066\u3044\u308b\u30e1\u30fc\u30eb\u306e\u5834\u5408\u3067\u3082\u3001\u81ea\u793e\u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u8a98\u5c0e\u306a\u3069\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u540c\u69d8\u306b\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u306e\u767b\u9332\u89e3\u9664\u306b\u5bfe\u5fdc\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u672c\u6587\u306b\u767b\u9332\u89e3\u9664\u306e\u30ea\u30f3\u30af\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u8868\u793a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5<\/h4>\n\n\n\n<p>\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u76ee\u7684\u306e\u30e1\u30fc\u30eb\u3084\u30e1\u30eb\u30de\u30ac\u306a\u3069\u306f\u4ee5\u524d\u304b\u3089\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u306b\u3088\u3063\u3066\u3001\u914d\u4fe1\u89e3\u9664\u306e\u30ea\u30f3\u30af\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306eGoogle\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3060\u3051\u3067\u306a\u304f\u3001\u6539\u3081\u3066\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u306b\u6e96\u62e0\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\u3067\u304d\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u3067\u306f\u4e3b\u306b\u4ee5\u4e0b\u306e3\u3064\u304c\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u30aa\u30d7\u30c8\u30a4\u30f3(\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u3064\u3044\u3066\u540c\u610f)\u3092\u53d6\u5f97\u3057\u3066\u3044\u308b<\/li>\n\n\n\n<li>\u9001\u4fe1\u8005\u306e\u8868\u793a\u7fa9\u52d9\u3092\u5b88\u3063\u3066\u3044\u308b<\/li>\n\n\n\n<li>\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8(\u914d\u4fe1\u89e3\u9664)\u306e\u5c0e\u7dda\u3092\u4f5c\u6210\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/email-law\" target=\"_blank\" rel=\"noopener\" title=\"\">\u7279\u5b9a\u96fb\u5b50\u30e1\u30fc\u30eb\u6cd5\u3068\u306f\uff1f\u5b88\u308b\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u3068\u7f70\u5247\u3001\u30aa\u30d7\u30c8\u30a4\u30f3\u306e\u53d6\u5f97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">List-Unsubscribe\u30d8\u30c3\u30c0\u3067\u306e\u5b9f\u88c5<\/h4>\n\n\n\n<p>\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u89e3\u9664\u306b\u95a2\u3057\u3066\u306f\u3001List-Unsubscribe\u30d8\u30c3\u30c0\u3092\u30e1\u30fc\u30eb\u306b\u542b\u3081\u308b\u3053\u3068\u3067\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>List-Unsubscribe\u30d8\u30c3\u30c0\u306fRFC 2369 \u304a\u3088\u3073 RFC 8058\u3067\u6a19\u6e96\u5316\u3055\u308c\u3066\u3044\u308b\u96fb\u5b50\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u3067\u3059\u3002Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306f\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u306e\u767b\u9332\u89e3\u9664\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u9001\u4fe1\u30e1\u30fc\u30eb\u306b\u4ee5\u4e0b\u306e\u4e21\u65b9\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u542b\u3081\u308b\u3088\u3046\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>List-Unsubscribe-Post: <code>List-Unsubscribe=One-Click<\/code><\/li>\n\n\n\n<li>List-Unsubscribe: <code>&lt;https:\/\/solarmora.com\/unsubscribe\/example&gt;<\/code><\/li>\n<\/ul>\n<cite>https:\/\/support.google.com\/a\/answer\/81126?hl=ja<\/cite><\/blockquote>\n\n\n\n<p>\u307e\u305f\u30012024\u5e741\u670819\u65e5\u306b\u3001Google\u306e<a href=\"https:\/\/support.google.com\/a\/answer\/14229414?sjid=17409885750571741970-AP\" target=\"_blank\" rel=\"noopener\" title=\"\">\u82f1\u8a9e\u7248\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306eFAQ<\/a>\u304c\u66f4\u65b0\u3055\u308c\u3001List-Unsubscribe\u306b\u95a2\u3057\u3066\u8ffd\u8a18\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3056\u3063\u304f\u308a\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5185\u5bb9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-border -border04 is-style-stitch\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u304b\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u304b\u306fGmail\u304c\u5224\u65ad\u3059\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u53d7\u4fe1\u8005\u304c\u8a8d\u8b58\u3059\u308b\u3082\u306e<\/p>\n\n\n\n<p>\u3064\u307e\u308a\u3001Gmail\u3068\u3057\u3066\u306f\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3060\u304b\u3089List-Unsubscribe\u304c\u7121\u3044\u3068\u30c0\u30e1\u3068\u3044\u3046\u5224\u5b9a\u306f\u3057\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u8cfc\u8aad\u89e3\u9664\u3057\u305f\u3044\u306e\u306b\u89e3\u9664\u65b9\u6cd5\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u306a\u3044\u8aad\u8005\u306f\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u300d\u3092\u3059\u308b\u3068\u601d\u3046\u7d50\u679c\u3068\u3057\u3066\u3001\u30b9\u30d1\u30e0\u5831\u544a\u7387\u304c\u4e0a\u304c\u308a\u30010.3%\u3092\u8d85\u3048\u305f\u3089\u7d50\u5c40\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u884c\u304f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gmail\u306e\u65b0\u3057\u3044\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u5bfe\u5fdc\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u3053\u3053\u304b\u3089\u306f\u5b9f\u969b\u306bGmail\u306e\u65b0\u3057\u3044\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u5bfe\u5fdc\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u30920.3%\u672a\u6e80\u306b\u7dad\u6301\u3059\u308b\u300d\u300c\u914d\u4fe1\u767b\u9332\u3092\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u89e3\u9664\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u300d\u306a\u3069\u306f\u3059\u3067\u306b\u30dd\u30ea\u30b7\u30fc\u306e\u5185\u5bb9\u8aac\u660e\u3068\u540c\u6642\u306b\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u306a\u3069\u304c\u30e1\u30a4\u30f3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u72b6\u6cc1\u3092\u628a\u63e1\u3059\u308b<\/h3>\n\n\n\n<p>\u307e\u305a\u7b2c\u4e00\u306b\u3059\u3079\u304d\u3053\u3068\u306f\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3001\u81ea\u8eab\u3084\u81ea\u90e8\u7f72\u3067\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u304c5,000\u901a\u672a\u6e80\u3060\u3063\u305f\u3068\u3057\u3066\u3082\u3001\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u4ed6\u90e8\u7f72\u306b\u3088\u308b\u5927\u91cf\u914d\u4fe1\u306a\u3069\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u81ea\u5206\u306f\u5927\u4e08\u592b\u3060\u3068\u601d\u3063\u3066\u3044\u3066\u3082\u3001\u7a81\u7136\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u3001\u5fc5\u305a\u793e\u5185\u3067\u78ba\u8a8d\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u5177\u4f53\u7684\u306b\u306f\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u793e\u5185\u306e\u3069\u306e\u90e8\u7f72\u3067\u30e1\u30fc\u30eb\u304c\u5229\u7528\u3057\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u30e1\u30eb\u30de\u30ac\u7b49\u306e\u5927\u91cf\u914d\u4fe1\u3092\u3057\u3066\u3044\u306a\u3044\u304b<\/li>\n\n\n\n<li>\u81ea\u52d5\u9001\u4fe1\u30e1\u30fc\u30eb\u306a\u3069\u304c\u3069\u308c\u304f\u3089\u3044\u914d\u4fe1\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u3069\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>SPF\u3001DKIM\u3001DMARC\u306e\u8a2d\u5b9a\u72b6\u6cc1<\/li>\n<\/ul>\n\n\n\n<p>\u307e\u305f\u3001\u3053\u3053\u304b\u3089\u306fSPF\u3001DKIM\u3001DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u81ea\u793e\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u904b\u7528\u30fb\u4fdd\u5b88\u306e\u62c5\u5f53\u8005\u306b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u78ba\u8a8d\u3068\u5bfe\u5fdc\u3092\u9032\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SPF\u306e\u8a2d\u5b9a\u624b\u9806<\/h3>\n\n\n\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u306f\u3084\u3084\u96e3\u3057\u3044\u5370\u8c61\u304c\u5f37\u3044\u3067\u3059\u304c\u3001\u5b9f\u969b\u306e\u624b\u9806\u306f\u591a\u304f\u306a\u304f\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u4f1a\u793e\u306e\u30b5\u30dd\u30fc\u30c8\u306a\u3069\u3082\u6d3b\u7528\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u304c\u624b\u9806\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"is-style-num_circle -list-under-dashed has-swl-pale-02-background-color has-background wp-block-list\">\n<li>SPF\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\uff08\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u54082\u306b\uff09<\/li>\n\n\n\n<li>\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u63d0\u4f9b\u4f1a\u793e\u306bSPF\u30ec\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n<li>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u7ba1\u7406\u3057\u3066\u3044\u308bDNS\u30b5\u30fc\u30d0\u30fc\u306bSPF\u30ec\u30b3\u30fc\u30c9\u3092\u8a18\u5165\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<p>\u30c9\u30e1\u30a4\u30f3\u306e\u7ba1\u7406\u3092\u5916\u90e8\u306b\u59d4\u8a17\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001SPF\u30ec\u30b3\u30fc\u30c9\u3092\u59d4\u8a17\u5148\u306e\u4f1a\u793e\u306b\u63d0\u4f9b\u3057\u3001\u8a2d\u5b9a\u3092\u4f9d\u983c\u3057\u307e\u3057\u3087\u3046\u3002\u3088\u308a\u8a73\u3057\u3044\u78ba\u8a8d\u65b9\u6cd5\u3084\u8a2d\u5b9a\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/spf-record\" target=\"_blank\" rel=\"noopener\" title=\"\">\u3010\u512a\u3057\u304f\u89e3\u8aac\u3011SPF\u30ec\u30b3\u30fc\u30c9\u3068\u306f\uff1f\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u3050\u4ed5\u7d44\u307f\u3084\u8a2d\u5b9a\u65b9\u6cd5<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DKIM\u306e\u8a2d\u5b9a\u624b\u9806<\/h3>\n\n\n\n<p>DKIM\u306b\u306f\u3001\u7b2c\u4e09\u8005\u7f72\u540d\u3068\u4f5c\u6210\u8005\u7f72\u540d\u306e2\u3064\u306e\u7f72\u540d\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e09\u8005\u7f72\u540d\u306f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u7b49\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u306b\u306f\u3001\u305d\u306e\u30b7\u30b9\u30c6\u30e0\u304c\u7528\u610f\u3057\u3066\u3044\u308b\u7f72\u540d\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u516c\u958b\u9375\u306e\u8a2d\u5b9a\u306a\u3069\u3082\u30b7\u30b9\u30c6\u30e0\u63d0\u4f9b\u306e\u4e8b\u696d\u8005\u304c\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>SPF\u306e\u8a2d\u5b9a\u3068\u540c\u69d8\u3067\u5c0e\u5165\u306e\u30cf\u30fc\u30c9\u30eb\u306f\u4f4e\u3044\u3067\u3059\u304c\u3001\u30d8\u30c3\u30c0From\u3068DKIM\u8a8d\u8a3c\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3057\u306a\u3044\u305f\u3081DMARC\u306e\u8a8d\u8a3c\u304c\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u7b2c\u4e09\u8005\u7f72\u540d\u306f\u8a8d\u8a3c\u306e\u5f37\u5ea6\u304c\u5f31\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3084\u3001\u4f5c\u6210\u8005\u7f72\u540d\u306e\u307b\u3046\u304c\u9001\u4fe1\u8005\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001<strong><span class=\"swl-marker mark_yellow\">\u539f\u5247\u3068\u3057\u3066\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981<\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u3067\u306f\u5b9f\u969b\u306bDKIM\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306e\u6982\u8981\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002DKIM\u306e\u5b9f\u88c5\u306f\u74b0\u5883\u306b\u4f9d\u5b58\u3059\u308b\u90e8\u5206\u3082\u3042\u308b\u305f\u3081\u3001\u8a73\u7d30\u306a\u8a2d\u5b9a\u65b9\u6cd5\u306f\u5229\u7528\u3057\u3066\u3044\u308b\u5404\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u30b5\u30dd\u30fc\u30c8\u3067\u78ba\u8a8d\u3059\u308b\u306e\u304c\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ol class=\"is-style-num_circle -list-under-dashed has-swl-pale-02-background-color has-background wp-block-list\">\n<li><a href=\"http:\/\/www.opendkim.org\/\" target=\"_blank\" rel=\"noopener\" title=\"\">OpenDKIM<\/a>\u306a\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3044\u3001\u9375\u30da\u30a2\u306e\u4f5c\u6210\u3068\u30ec\u30b3\u30fc\u30c9\u306e\u751f\u6210\u3092\u884c\u3046<\/li>\n\n\n\n<li>DNS\u30b5\u30fc\u30d0\u30fc\u306b\u751f\u6210\u3057\u305fDKIM\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b<\/li>\n\n\n\n<li><a href=\"https:\/\/dkimcore.org\/tools\/keycheck.html\" target=\"_blank\" rel=\"noopener\" title=\"\">DKIMCore<\/a>\u306a\u3069\u306e\u691c\u8a3c\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u9001\u4fe1<\/li>\n<\/ol>\n\n\n\n<p>DKIM\u306b\u3088\u308b\u9001\u4fe1\u8005\u8a8d\u8a3c\u306b\u3088\u308a\u3001\u53d7\u4fe1\u8005\u306f\u9001\u4fe1\u8005\u306e\u6b63\u5f53\u6027\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u5b89\u5fc3\u3057\u3066\u30e1\u30fc\u30eb\u3092\u958b\u5c01\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>Gmail\u3067\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d\u304b\u3089\u3001DKIM\u304c\u6210\u529f\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-us.googleusercontent.com\/rSGYf39dvCgiBJjX7I7zBCADolhPGI8Y6nZ1Duec7sAYSaB2YKl4H9Nxpbnp_imj8TX9YxcRg-T9wl0aSb6DFJN08x5EfIUeI9efj--zDvwyh7anPfng0gPVENM00F5lbUDcAUsj9WP5vs9pctDHUvo\" alt=\"\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">DMARC\u306e\u8a2d\u5b9a\u624b\u9806<\/h3>\n\n\n\n<p>\u30e1\u30fc\u30eb\u9001\u4fe1\u5074\u304cDMARC\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u81ea\u793e\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306bDMARC\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001DMARC\u306e\u30dd\u30ea\u30b7\u30fc\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b3\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u53d7\u4fe1\u3055\u305b\u308b\uff08none\uff09<\/li>\n\n\n\n<li>\u53d7\u4fe1\u62d2\u5426\u3055\u305b\u308b\uff08reject\uff09<\/li>\n\n\n\n<li>\u9694\u96e2\u3055\u305b\u308b\uff08quarantine\uff09<\/li>\n<\/ul>\n\n\n\n<p>Google\u306fDMARC\u306e\u4f7f\u7528\u3092\u958b\u59cb\u3059\u308b\u3068\u304d\u306f\u3001\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528\u8a2d\u5b9a\u306b<strong><span class=\"swl-marker mark_yellow\">none\u3092\u6307\u5b9a<\/span><\/strong>\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>DMARC\u306b\u95a2\u3057\u3066\u3082\u30c9\u30e1\u30a4\u30f3\u306e\u7ba1\u7406\u3092\u5916\u90e8\u306b\u59d4\u8a17\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001SPF\u30ec\u30b3\u30fc\u30c9\u3092\u59d4\u8a17\u5148\u306e\u4f1a\u793e\u306b\u63d0\u4f9b\u3057\u3001\u8a2d\u5b9a\u3092\u4f9d\u983c\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SPF\uff65DKIM\u30fbDMAR\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b<\/h2>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u3054\u89a7\u3044\u305f\u3060\u3044\u3066\u5206\u304b\u308b\u3088\u3046\u306b\u3001<strong>\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8a8d\u8a3c\u8a2d\u5b9a\u306f\u8907\u96d1\u3067\u5206\u304b\u308a\u306b\u304f\u3044\u3053\u3068\u304c\u591a\u3044<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3082\u305d\u3082\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u3084\u7ba1\u7406\u306b\u95a2\u3057\u3066\u306f\u5927\u304d\u306a\u624b\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u81ea\u793e\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u904b\u7528\u3059\u308b\u306b\u306f\u30cf\u30fc\u30c9\u30eb\u3082\u9ad8\u304f\u3042\u307e\u308a\u304a\u3059\u3059\u3081\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u6d3b\u7528\u3057\u305f\u3044\u306e\u304c\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong><span class=\"swl-marker mark_yellow\">\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u3084\u904b\u7528\u306e\u6280\u8853\u306b\u3088\u308a\u9ad8\u3044\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/span><\/strong>\u3002\u3055\u3089\u306b\u3001\u30b5\u30fc\u30d3\u30b9\u306b\u3082\u3088\u308a\u307e\u3059\u304c\u3001 SPF\u3084DKIM\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u3066\u3001\u8a2d\u5b9a\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u308b\u3053\u3068\u3082\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u3067\u306f\u3001\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u7d39\u4ecb\u3057\u307e\u3059\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u72b6\u6cc1\u306e\u5834\u5408\u306f\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u4eca\u4f7f\u3063\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u304cDKIM\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044<\/li>\n\n\n\n<li>\u521d\u3081\u3066\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u5229\u7528\u3092\u691c\u8a0e\u3059\u308b<\/li>\n\n\n\n<li>\u8a73\u3057\u3044\u3053\u3068\u304c\u5206\u304b\u3089\u306a\u3044\u306e\u3067\u30b5\u30dd\u30fc\u30c8\u304c\u5145\u5b9f\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3044\u305f\u3044<\/li>\n<\/ul>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/gmail-guideline-system\" target=\"_blank\" rel=\"noopener\" title=\"\">Gmail\u306b1\u65e55000\u4ef6\u4ee5\u4e0a\u30e1\u30fc\u30eb\u3092\u9001\u308b\u5834\u5408\u306fSPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\uff01\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e05\u9078\u30102024\u5e742\u6708\u5bfe\u5fdc\u3011<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d\u306e\u6d3b\u7528<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2023\/09\/blastmail-top.png\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" class=\"wp-image-1943\"\/><\/figure>\n\n\n\n<p>\u30e1\u30eb\u30de\u30ac\u306a\u3069\u306e\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u3092\u4e00\u6589\u9001\u4fe1\u3057\u305f\u3044\u5834\u5408\u306f\u300c<a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\" title=\"\">\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb<\/a>\u300d\u306e\u5229\u7528\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u3001SPF\u3084DKIM\u306a\u3069\u4eca\u56de\u7d39\u4ecb\u3057\u305f\u65b0\u3057\u3044Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b<strong inert=\"true\"><span class=\"swl-marker mark_yellow\">15\u5e74\u9023\u7d9a\u9867\u5ba2\u5c0e\u5165\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0<\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background wp-block-list\">\n<li>\u6709\u52b9\u306a\u6b63\u5f15\u304d\u304a\u3088\u3073\u9006\u5f15\u304dDNS\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30e1\u30fc\u30eb\u9001\u4fe1\u306bTLS\u63a5\u7d9a\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>Internet Message Format \u6a19\u6e96\u306b\u5f93\u3046<\/li>\n<\/ul>\n\n\n\n<p>\u3082\u3061\u308d\u3093\u4e0a\u8a18\u306e\u3088\u3046\u306b\u30b7\u30b9\u30c6\u30e0\u5074\u3067\u5bfe\u5fdc\u304c\u5fc5\u8981\u306a\u8981\u4ef6\u306f\u3059\u3079\u3066\u6e80\u305f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u7279\u5fb4\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u64cd\u4f5c\u6027\u3068\u3001\u30b3\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u9ad8\u3055\u3067\u3059\u3002\u69d8\u3005\u306a\u696d\u7a2e\u3084\u5b98\u516c\u5e81\u306e\u5c0e\u5165\u3082\u3042\u308a\u3001\u5b9a\u756a\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u6a5f\u80fd\u304c\u3057\u3063\u304b\u308a\u3068\u3042\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\uff08\u30bf\u30fc\u30b2\u30c3\u30c8\uff09\u914d\u4fe1\u3084\u52b9\u679c\u6e2c\u5b9a\u3001HTML\u30e1\u30fc\u30eb\u30a8\u30c7\u30a3\u30bf\u306a\u3069\u3001\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u306f\u5168\u3066\u63c3\u3063\u3066\u304a\u308a\u3001\u6700\u3082\u5b89\u3044\u30d7\u30e9\u30f3\u3067\u3042\u308c\u3070\u6708\u984d4,000\u5186\u4ee5\u4e0b\u3067\u5c0e\u5165\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><span class=\"swl-marker mark_yellow\">\u65b0\u3057\u3044Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u306b\u52a0\u3048\u3066\u3001\u30b7\u30f3\u30d7\u30eb\u304b\u3064\u5b89\u3044\u306e\u3067\u3001\u521d\u3081\u3066\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u307f\u305f\u3044\u65b9\u306b\u3082\u304a\u3059\u3059\u3081<\/span><\/strong>\u3067\u3059\u3002\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3082\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u307e\u305a\u306f\u8a66\u3057\u3066\u307f\u3066\u306f\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<div class=\"swell-block-button blue_ is-style-btn_normal\"><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"swell-block-button__link\"><span>\u7121\u6599\u3067\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u8a66\u3057\u3066\u307f\u308b<span data-icon=\"LsChevronRight\" data-id=\"16\" style=\"--the-icon-svg: url(data:image\/svg+xml;base64,PHN2ZyBoZWlnaHQ9IjFlbSIgd2lkdGg9IjFlbSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiBhcmlhLWhpZGRlbj0idHJ1ZSIgdmlld0JveD0iMCAwIDQ4IDQ4Ij48cGF0aCBkPSJtMzMgMjUuMS0xMy4xIDEzYy0uOC44LTIgLjgtMi44IDAtLjgtLjgtLjgtMiAwLTIuOEwyOC40IDI0IDE3LjEgMTIuN2MtLjgtLjgtLjgtMiAwLTIuOC44LS44IDItLjggMi44IDBsMTMuMSAxM2MuNi42LjYgMS42IDAgMi4yeiI+PC9wYXRoPjwvc3ZnPg==)\" aria-hidden=\"true\" class=\"swl-inline-icon\">\u2003<\/span><\/span><\/a><\/div>\n\n\n\n<p>\u95a2\u9023\u8a18\u4e8b\uff1a<a href=\"https:\/\/bmb.jp\/maildeliver\/blastmail\" target=\"_blank\" rel=\"noopener\" title=\"\">\u30103\u5206\u3067\u5206\u304b\u308b\uff01\u3011\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30c8\u30e9\u30a4\u30a2\u30eb\u671f\u9593\u3092\u4f7f\u3063\u3066\u5fb9\u5e95\u30ec\u30d3\u30e5\u30fc<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u300c\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3(blastengine)\u300d\u306e\u6d3b\u7528<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/Screenshot-7.png\" alt=\"blastengine\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" class=\"wp-image-13917\"\/><\/figure>\n<\/div>\n\n\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3084\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u304b\u3089\u306e\u81ea\u52d5\u9001\u4fe1\u30e1\u30fc\u30eb\u306a\u3069\u666e\u6bb5\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u30a8\u30f3\u30b8\u30f3\u3068\u3057\u3066\u306e\u6d3b\u7528\u3084\u3001SMTP\u30ea\u30ec\u30fc\u3067\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u300c<a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\" title=\"\">\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3(blastengine)<\/a>\u300d\u306e\u5229\u7528\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3068\u540c\u69d8\u306b\u3001<span class=\"swl-marker mark_yellow\"><strong>SPF\u3084DKIM\u306a\u3069\u4eca\u56de\u7d39\u4ecb\u3057\u305f\u65b0\u3057\u3044Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc<\/strong><\/span>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u306f\u7c21\u5358\u306b\u30e1\u30fc\u30eb\u306e\u5927\u898f\u6a21\u9ad8\u901f\u914d\u4fe1\u304c\u53ef\u80fd\u306aSMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d0\u30fc\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u540c\u6642\u306b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u5fc5\u8981\u3068\u3057\u306a\u3044\u3001API\u3067\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4ed5\u7d44\u307f\u3082\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30fc\u30d0\u30fc\u306e\u904b\u7528\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306fblastengine\u3067\u884c\u3046\u305f\u3081\u3001\u5e38\u306b\u9ad8\u3044IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4fdd\u3063\u3066\u5b89\u5168\u306b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8ab2\u984c\u304c\u3042\u308b\u5834\u5408\u306f\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u306e\u5229\u7528\u3092\u691c\u8a0e\u3059\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ul class=\"has-swl-pale-02-background-color has-background 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title=\"\">blastengine\uff08\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff09\u3068\u306f\uff1fAPI\u30fbSMTP\u7279\u5316\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u5411\u3051\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u89e3\u8aac<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<dl class=\"swell-block-faq is-style-faq-border\" data-q=\"fill-main\" data-a=\"col-text\">\n<div class=\"swell-block-faq__item\"><dt class=\"faq_q\">SPF\u30fbDKIM\u30fbDMARC\u3059\u3079\u3066\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3057\u3087\u3046\u304b\uff1f<\/dt><dd class=\"faq_a\">\n<p>\u306f\u3044\u3002Gmail\u5b9b\u306b1\u65e5\u3042\u305f\u308a5,000\u4ef6\u4ee5\u4e0a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u5834\u5408\u306f\u3001\u3059\u3079\u3066\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/dd><\/div>\n\n\n\n<div class=\"swell-block-faq__item\"><dt 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class=\"faq_a\">\n<p>Gmail\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u30bd\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u8a2d\u5b9a\u72b6\u6cc1\u304c\u308f\u304b\u308a\u307e\u3059\u3002PC\u3067\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u3092\u958b\u304d\u3001\u53f3\u4e0a\u306e\u7e26\u306e3\u70b9\u30ea\u30fc\u30c9\u3092\u30af\u30ea\u30c3\u30af\u3057\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d\u304b\u3089\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/dd><\/div>\n\n\n\n<div class=\"swell-block-faq__item\"><dt class=\"faq_q\">Gmail\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u30bd\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001SPF\u30fbDKIM\u30fbDMARC\u306e3\u3064\u304c\u300cPASS\u300d\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u8a2d\u5b9a\u306f\u554f\u984c\u306a\u3044\u8a8d\u8b58\u3067\u3088\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/dt><dd class=\"faq_a\">\n<p>\u306f\u3044\u3002\u73fe\u72b6\u3067\u306f3\u3064\u304c\u305d\u308c\u305e\u308c\u300cPASS\u300d\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<\/dd><\/div>\n<\/dl>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1360\" height=\"350\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/01\/gmail\u8981\u4ef6\u5f37\u5316_\u30d0\u30ca\u30fc_1360x350-1.png\" alt=\"\" class=\"wp-image-2265\"\/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u7d42\u66f4\u65b0\u65e5\uff1a2024\u5e741\u670824\u65e5\u66f4\u65b0\u5185\u5bb9\uff1aList-Unsubscribe\u306b\u3064\u3044\u3066 \u6700\u65b0\u60c5\u5831\u306fGmail 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