{"id":22702,"date":"2026-09-14T17:48:06","date_gmt":"2026-09-14T08:48:06","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=22702"},"modified":"2026-09-14T17:48:06","modified_gmt":"2026-09-14T08:48:06","slug":"gmail-smtpserver","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/mail-delivery\/gmail-smtpserver","title":{"rendered":"Gmail\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u3067\u30e1\u30fc\u30eb\u304c\u9001\u308c\u306a\u3044\u539f\u56e0\u3068\u5bfe\u7b56\uff5c\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u5f8c\u306b\u3084\u308b\u3079\u304d\u3053\u3068"},"content":{"rendered":"<p><!-- ================================================================ \u30d6\u30ed\u30b0A\uff08\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\uff09\u5411\u3051\u8a18\u4e8b\uff5c\u30e1\u30a4\u30f3\u8a34\u6c42\uff1ablastengine \u30bf\u30a4\u30c8\u30eb\u6848\uff08\u672c\u6587H1\u306f\u5165\u308c\u3066\u3044\u307e\u305b\u3093\u3002WordPress\u306e\u30bf\u30a4\u30c8\u30eb\u6b04\u306b\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff09 \u68481\uff1aGmail\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u3067\u9001\u308c\u306a\u3044\u539f\u56e0\u3068\u5bfe\u7b56\uff5c\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u5f8c\u306b\u3084\u308b\u3079\u304d\u3053\u3068 \u68482\uff1a\u3010Google\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u3011Gmail\u306eSMTP\u3067\u9001\u4fe1\u3067\u304d\u306a\u3044\u3068\u304d\u306e\u5bfe\u51e6\u6cd5\u307e\u3068\u3081 \u68483\uff1aGmail\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u3067\u30e1\u30fc\u30eb\u304c\u9001\u308c\u306a\u3044\uff01\u5ec3\u6b62\u3055\u308c\u305f\u57fa\u672c\u8a8d\u8a3c\u3078\u306e\u5bfe\u5fdc\u624b\u9806 \u30e1\u30bf\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u6848\uff1a Google\u304c2025\u5e743\u670814\u65e5\u306b\u57fa\u672c\u8a8d\u8a3c\u3092\u5ec3\u6b62\u3057\u3001Gmail\u306eSMTP\u7d4c\u7531\u3067\u30e1\u30fc\u30eb\u304c\u9001\u308c\u306a\u3044\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u5ec3\u6b62\u306e\u80cc\u666f\u3068\u5f71\u97ff\u3001OAuth 2.0\u30fb\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u30fbSMTP\u30ea\u30ec\u30fc\u306a\u3069\u74b0\u5883\u5225\u306e\u5bfe\u7b56\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002 ================================================================= --><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/gmail-smtpserver-1.png\" alt=\"\" width=\"1734\" height=\"907\" class=\"alignnone size-full wp-image-22704\" \/><\/p>\n<p><strong>Google\u306f2025\u5e743\u670814\u65e5\u3092\u3082\u3063\u3066\u3001Gmail\u3092\u306f\u3058\u3081\u3068\u3059\u308bGoogle Workspace\u306e\u5404\u30b5\u30fc\u30d3\u30b9\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3060\u3051\u3092\u4f7f\u3046\u300c\u57fa\u672c\u8a8d\u8a3c\uff08Basic\u8a8d\u8a3c\uff09\u300d\u306b\u3088\u308b\u30a2\u30af\u30bb\u30b9\u3092\u539f\u5247\u5ec3\u6b62\u3057\u307e\u3057\u305f\uff08\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u306a\u3069\u4e00\u90e8\u4f8b\u5916\u3042\u308a\uff09\u3002<\/strong>\u3053\u306e\u5909\u66f4\u3092\u304d\u3063\u304b\u3051\u306b\u3001\u300cOutlook\u3084Thunderbird\u304b\u3089\u6025\u306bGmail\u304c\u9001\u308c\u306a\u304f\u306a\u3063\u305f\u300d\u300c\u8907\u5408\u6a5f\u306e\u30b9\u30ad\u30e3\u30f3\u9001\u4fe1\u304c\u6b62\u307e\u3063\u305f\u300d\u300c\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u306e\u81ea\u52d5\u30e1\u30fc\u30eb\u304c\u30a8\u30e9\u30fc\u306b\u306a\u308b\u300d\u3068\u3044\u3063\u305f\u30c8\u30e9\u30d6\u30eb\u304c\u5404\u6240\u3067\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u539f\u56e0\u304c\u5206\u304b\u3089\u306a\u3044\u307e\u307e\u8a2d\u5b9a\u3092\u89e6\u3063\u3066\u3057\u307e\u3046\u3068\u3001\u304b\u3048\u3063\u3066\u72b6\u6cc1\u304c\u60aa\u5316\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u307e\u305a\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u306e\u306f\u3001\u3053\u308c\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u6545\u969c\u3067\u306f\u306a\u304f\u3001Google\u5074\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u306b\u3068\u3082\u306a\u3046\u4ed5\u69d8\u5909\u66f4\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u6b63\u3057\u3044\u8a8d\u8a3c\u65b9\u5f0f\u3078\u79fb\u884c\u3059\u308c\u3070\u78ba\u5b9f\u306b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u57fa\u672c\u8a8d\u8a3c\u304c\u5ec3\u6b62\u3055\u308c\u305f\u80cc\u666f\u3068\u5f71\u97ff\u3092\u53d7\u3051\u308b\u74b0\u5883\u3092\u6574\u7406\u3057\u305f\u3046\u3048\u3067\u3001OAuth 2.0\u30fb\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u30fbSMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3068\u3044\u3063\u305f\u5bfe\u7b56\u3092\u3001\u5229\u7528\u74b0\u5883\u3054\u3068\u306e\u9078\u3073\u65b9\u3068\u3042\u308f\u305b\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u60c5\u5831\u30b7\u30b9\u30c6\u30e0\u62c5\u5f53\u8005\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3082\u3061\u308d\u3093\u3001\u793e\u5185\u306e\u30e1\u30fc\u30eb\u74b0\u5883\u3084\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u3092\u7ba1\u7406\u3057\u3066\u3044\u308b\u65b9\u306b\u3082\u5f79\u7acb\u3064\u5185\u5bb9\u3067\u3059\u3002<\/p>\n<p>Google\u516c\u5f0f\uff1a<a href=\"https:\/\/support.google.com\/a\/answer\/14114704?hl=ja\" target=\"_blank\" rel=\"noopener\">\u5b89\u5168\u6027\u306e\u4f4e\u3044\u30a2\u30d7\u30ea\u304b\u3089 OAuth \u3078\u306e\u79fb\u884c<\/a><\/p>\n<p><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastengine.jp\/wp-content\/uploads\/2025\/04\/26439_728_90.png\" alt=\"blastengine\u306e\u30d0\u30ca\u30fc\u753b\u50cf\" \/><\/a><\/p>\n<h2>Google\u306e\u57fa\u672c\u8a8d\u8a3c\uff08Basic\u8a8d\u8a3c\uff09\u5ec3\u6b62\u3068\u306f<\/h2>\n<p>Google\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u3092\u76ee\u7684\u3068\u3057\u3066\u3001\u53e4\u304f\u304b\u3089\u4f7f\u308f\u308c\u3066\u304d\u305f\u57fa\u672c\u8a8d\u8a3c\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u7d42\u4e86\u3057\u307e\u3057\u305f\u3002\u57fa\u672c\u8a8d\u8a3c\u3068\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u305d\u306e\u307e\u307e\u9001\u3063\u3066\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u8a2d\u5b9a\u304c\u7c21\u5358\u306a\u53cd\u9762\u3001\u8a8d\u8a3c\u60c5\u5831\u304c\u305d\u306e\u307e\u307e\u6d41\u308c\u308b\u305f\u3081\u3001\u73fe\u5728\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6c34\u6e96\u3067\u306f\u5b89\u5168\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u5ec3\u6b62\u306b\u3088\u308a\u3001<span style=\"color: #ff0000;\"><strong>OAuth 2.0\u306a\u3069\u306e\u65b0\u3057\u3044\u8a8d\u8a3c\u65b9\u5f0f\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u30a2\u30d7\u30ea\u3084\u6a5f\u5668\u306f\u3001Gmail\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u7d4c\u7531\u3067\u30e1\u30fc\u30eb\u3092\u9001\u308c\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/strong><\/span>\u5f71\u97ff\u7bc4\u56f2\u306f\u500b\u4eba\u5229\u7528\u304b\u3089\u30d3\u30b8\u30cd\u30b9\u5229\u7528\u307e\u3067\u5e45\u5e83\u304f\u3001\u653e\u7f6e\u3059\u308b\u3068\u696d\u52d9\u30e1\u30fc\u30eb\u306e\u505c\u6b62\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u307e\u305a\u306f\u81ea\u793e\u306e\u3069\u306e\u74b0\u5883\u304c\u5bfe\u8c61\u306b\u306a\u308b\u306e\u304b\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u3001\u5bfe\u7b56\u306e\u7b2c\u4e00\u6b69\u3067\u3059\u3002<\/p>\n<h3>\u57fa\u672c\u8a8d\u8a3c\u304c\u5ec3\u6b62\u3055\u308c\u305f\u80cc\u666f<\/h3>\n<p>\u57fa\u672c\u8a8d\u8a3c\u306f\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u76f4\u63a5\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u3001\u901a\u4fe1\u7d4c\u8def\u4e0a\u3067\u306e\u76d7\u8074\uff08\u4e2d\u9593\u8005\u653b\u6483\uff09\u3084\u3001\u6d41\u51fa\u3057\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4f7f\u3044\u56de\u3059\u30ea\u30b9\u30c8\u578b\u653b\u6483\u306b\u5f31\u3044\u3068\u3044\u3046\u5f31\u70b9\u3092\u9577\u5e74\u62b1\u3048\u3066\u3044\u307e\u3057\u305f\u3002\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306e\u30a2\u30d7\u30ea\u306b\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u305d\u306e\u307e\u307e\u9810\u3051\u308b\u69cb\u9020\u306b\u306a\u308b\u70b9\u3082\u3001\u60c5\u5831\u6f0f\u3048\u3044\u306e\u6e29\u5e8a\u3068\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u3046\u3057\u305f\u8ab2\u984c\u3092\u89e3\u6d88\u3059\u308b\u305f\u3081\u3001Google\u306f\u30c8\u30fc\u30af\u30f3\u3092\u4f7f\u3046<strong>OAuth 2.0<\/strong>\u3078\u306e\u79fb\u884c\u3092\u5f37\u304f\u63a8\u5968\u3057\u3066\u304d\u307e\u3057\u305f\u3002OAuth 2.0\u3067\u306f\u30d1\u30b9\u30ef\u30fc\u30c9\u305d\u306e\u3082\u306e\u3092\u30a2\u30d7\u30ea\u306b\u6e21\u3055\u305a\u3001\u4e00\u6642\u7684\u306a\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3067\u8a8d\u8a3c\u3057\u307e\u3059\u3002\u4eca\u56de\u306e\u5ec3\u6b62\u306f\u3001\u5358\u306a\u308b\u4ed5\u69d8\u5909\u66f4\u3067\u306f\u306a\u304f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u306e\u5b89\u5168\u6027\u3092\u5e95\u4e0a\u3052\u3059\u308b\u6d41\u308c\u306e\u4e00\u74b0\u3068\u6349\u3048\u308b\u3068\u7406\u89e3\u3057\u3084\u3059\u3044\u3067\u3057\u3087\u3046\u3002\u30dd\u30a4\u30f3\u30c8\u3092\u6574\u7406\u3059\u308b\u3068\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u57fa\u672c\u8a8d\u8a3c\u306f\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u76f4\u63a5\u9001\u4fe1\u3059\u308b\u305f\u3081\u3001\u76d7\u8074\u3084\u4f7f\u3044\u56de\u3057\u653b\u6483\u306b\u5f31\u3044<\/li>\n<li>OAuth 2.0\u306f\u30c8\u30fc\u30af\u30f3\u8a8d\u8a3c\u306e\u305f\u3081\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u30a2\u30d7\u30ea\u306b\u9810\u3051\u305a\u306b\u6e08\u3080<\/li>\n<li>Google\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u306e\u4e00\u74b0\u3068\u3057\u3066\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3092\u9032\u3081\u3066\u304d\u305f<\/li>\n<\/ul>\n<\/div>\n<h3>\u5ec3\u6b62\u3067\u5f71\u97ff\u3092\u53d7\u3051\u308b\u74b0\u5883\u30fb\u6a5f\u5668<\/h3>\n<p>\u4eca\u56de\u306e\u5ec3\u6b62\u3067\u5f71\u97ff\u3092\u53d7\u3051\u308b\u306e\u306f\u3001OAuth 2.0\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u53e4\u3044\u30bd\u30d5\u30c8\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u3059\u3002\u7279\u306b\u3001\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u304c\u5f8c\u56de\u3057\u306b\u306a\u308a\u304c\u3061\u306a\u696d\u52d9\u6a5f\u5668\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u6b21\u306e\u3088\u3046\u306a\u74b0\u5883\u3067\u306f\u3001\u3059\u3067\u306b\u30e1\u30fc\u30eb\u9001\u4fe1\u304c\u6b62\u307e\u3063\u3066\u3044\u308b\u3001\u3042\u308b\u3044\u306f\u8fd1\u3044\u3046\u3061\u306b\u6b62\u307e\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eThunderbird\u3084Outlook\u306a\u3069\u306e\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8<\/li>\n<li>SMTP\u8a8d\u8a3c\u306b\u3057\u304b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u30b9\u30ad\u30e3\u30ca\u30fb\u8907\u5408\u6a5f<\/li>\n<li>\u57fa\u5e79\u30b7\u30b9\u30c6\u30e0\u3084\u81ea\u4f5c\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089Gmail\u306eSMTP\u3078\u76f4\u63a5\u9001\u4fe1\u3057\u3066\u3044\u308b\u74b0\u5883<\/li>\n<li>\u4e00\u90e8\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u304c\u63d0\u4f9b\u3059\u308b\u30ec\u30ac\u30b7\u30fc\u306a\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9<\/li>\n<\/ul>\n<\/div>\n<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306f\u6700\u65b0\u7248\u3078\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3084OAuth 2.0\u5bfe\u5fdc\u30a2\u30d7\u30ea\u3078\u306e\u79fb\u884c\u3067\u5bfe\u51e6\u3067\u304d\u307e\u3059\u3002\u4e00\u65b9\u3001\u8907\u5408\u6a5f\u3084\u53e4\u3044\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306e\u3088\u3046\u306b<strong>OAuth 2.0\u306b\u5bfe\u5fdc\u3067\u304d\u306a\u3044\u6a5f\u5668\u306f\u3001\u5916\u90e8\u306eSMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3078\u5207\u308a\u66ff\u3048\u308b\u306e\u304c\u73fe\u5b9f\u7684<\/strong>\u3067\u3059\u3002\u307e\u305a\u306f\u30e1\u30fc\u30ab\u30fc\u3078\u5bfe\u5fdc\u53ef\u5426\u3092\u78ba\u8a8d\u3057\u3001\u96e3\u3057\u3044\u5834\u5408\u306f\u4ee3\u66ff\u624b\u6bb5\u306e\u691c\u8a0e\u3078\u9032\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u3082\u305d\u3082SMTP\u30b5\u30fc\u30d0\u30fc\u306e\u5f79\u5272\u3084\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4ed5\u7d44\u307f\u304b\u3089\u6574\u7406\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u57fa\u790e\u304b\u3089\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/smtpserver\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/05\/smtp_server.png\" alt=\"SMTP\u30b5\u30fc\u30d0\u30fc\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4ed5\u7d44\u307f\u3084POP\/IMAP\u3068\u306e\u9055\u3044\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\" width=\"90\" height=\"51\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">SMTP\u30b5\u30fc\u30d0\u30fc\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4ed5\u7d44\u307f\u3084POP\/IMAP\u3068\u306e\u9055\u3044\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u306e\u521d\u671f\u8a2d\u5b9a\u3092\u3057\u3066\u3044\u308b\u3068\u304d\u3001SMTP\u30b5\u30fc\u30d0\u30fc\u3084POP\u30b5\u30fc\u30d0\u30fc\u3068\u3044\u3063\u305f\u5c02\u9580\u7528\u8a9e\u304c\u51fa\u3066\u304d\u3066\u624b\u304c\u6b62\u307e\u3063\u3066\u3057\u307e\u3063\u305f\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\u3002\u306a\u3093\u3068\u306a\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>\u57fa\u672c\u8a8d\u8a3c\u3068OAuth 2.0\u306f\u4f55\u304c\u9055\u3046\u306e\u304b<\/h2>\n<p>\u5bfe\u7b56\u3092\u8003\u3048\u308b\u3046\u3048\u3067\u3001\u5ec3\u6b62\u3055\u308c\u305f\u57fa\u672c\u8a8d\u8a3c\u3068\u3001\u3053\u308c\u304b\u3089\u6a19\u6e96\u306b\u306a\u308bOAuth 2.0\u306e\u9055\u3044\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3068\u5224\u65ad\u304c\u3076\u308c\u307e\u305b\u3093\u3002\u4e21\u8005\u306e\u5dee\u306f\u300c\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u305d\u306e\u307e\u307e\u6271\u3046\u304b\u3069\u3046\u304b\u300d\u306b\u96c6\u7d04\u3055\u308c\u307e\u3059\u3002\u3053\u3053\u3092\u62bc\u3055\u3048\u308b\u3068\u3001\u306a\u305c\u79fb\u884c\u304c\u5fc5\u8981\u306a\u306e\u304b\u304c\u8151\u306b\u843d\u3061\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<h3>\u57fa\u672c\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u3068\u62b1\u3048\u308b\u30ea\u30b9\u30af<\/h3>\n<p>\u57fa\u672c\u8a8d\u8a3c\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u305d\u306e\u307e\u307e\u4f7f\u3063\u3066\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3059\u308b\u3001\u3082\u3063\u3068\u3082\u53e4\u5178\u7684\u306a\u8a8d\u8a3c\u65b9\u5f0f\u3067\u3059\u3002\u5c0e\u5165\u304c\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u30ec\u30ac\u30b7\u30fc\u6a5f\u5668\u3067\u3082\u52d5\u304f\u70b9\u304c\u9577\u6240\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u305d\u306e\u624b\u8efd\u3055\u306e\u88cf\u5074\u306b\u306f\u898b\u904e\u3054\u305b\u306a\u3044\u30ea\u30b9\u30af\u304c\u6f5c\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6f0f\u308c\u308b\u3068\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u5168\u4f53\u3078\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u3057\u3066\u3057\u307e\u3046<\/li>\n<li>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u30b9\u30d7\u30ec\u30fc\u653b\u6483\u306b\u5bfe\u3057\u3066\u8106\u5f31<\/li>\n<li>\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30a2\u30d7\u30ea\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u76f4\u63a5\u6e21\u3059\u305f\u3081\u3001\u60c5\u5831\u6f0f\u3048\u3044\u306e\u8d77\u70b9\u306b\u306a\u308a\u3084\u3059\u3044<\/li>\n<\/ul>\n<\/div>\n<p>\u653b\u6483\u624b\u6cd5\u304c\u9ad8\u5ea6\u5316\u3057\u305f\u73fe\u5728\u3001\u30d1\u30b9\u30ef\u30fc\u30c91\u3064\u306b\u4f9d\u5b58\u3059\u308b\u8a8d\u8a3c\u3067\u306f\u5341\u5206\u306a\u5b89\u5168\u6027\u3092\u4fdd\u3066\u307e\u305b\u3093\u3002Google\u304c\u5ec3\u6b62\u306b\u8e0f\u307f\u5207\u3063\u305f\u306e\u306f\u3001\u3053\u306e\u69cb\u9020\u7684\u306a\u5f31\u3055\u304c\u7406\u7531\u3067\u3059\u3002<\/p>\n<h3>OAuth 2.0\u306e\u4ed5\u7d44\u307f\u3068\u5b89\u5168\u6027<\/h3>\n<p>OAuth 2.0\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5171\u6709\u305b\u305a\u306b\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3067\u304d\u308b\u8a8d\u8a3c\u30fb\u8a8d\u53ef\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u5b9f\u969b\u306e\u63a5\u7d9a\u306b\u306f<strong>\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3068\u547c\u3070\u308c\u308b\u4e00\u6642\u7684\u306a\u8a8d\u8a3c\u60c5\u5831<\/strong>\u3092\u4f7f\u3046\u305f\u3081\u3001\u4eee\u306b\u30c8\u30fc\u30af\u30f3\u304c\u6f0f\u308c\u3066\u3082\u5f71\u97ff\u7bc4\u56f2\u3092\u9650\u5b9a\u3067\u304d\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u6d41\u51fa\u305d\u306e\u3082\u306e\u3092\u907f\u3051\u3089\u308c\u307e\u3059\u3002\u4e21\u8005\u306e\u9055\u3044\u3092\u8868\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u6bd4\u8f03\u9805\u76ee<\/th>\n<th>\u57fa\u672c\u8a8d\u8a3c<\/th>\n<th>OAuth 2.0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8a8d\u8a3c\u306b\u4f7f\u3046\u60c5\u5831<\/td>\n<td>\u30e6\u30fc\u30b6\u30fc\u540d\uff0b\u30d1\u30b9\u30ef\u30fc\u30c9<\/td>\n<td>\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\uff08\u4e00\u6642\u7684\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u5171\u6709<\/td>\n<td>\u5fc5\u8981<\/td>\n<td>\u4e0d\u8981<\/td>\n<\/tr>\n<tr>\n<td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5ea6<\/td>\n<td>\u4f4e\u3044<\/td>\n<td>\u9ad8\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u8a2d\u5b9a\u306e\u624b\u9593<\/td>\n<td>\u30b7\u30f3\u30d7\u30eb<\/td>\n<td>\u3084\u3084\u8907\u96d1\uff08\u30a2\u30d7\u30ea\u767b\u9332\u304c\u5fc5\u8981\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u5bfe\u5fdc\u304c\u96e3\u3057\u3044\u74b0\u5883<\/td>\n<td>\u306a\u3057\uff08\u30ec\u30ac\u30b7\u30fc\u6a5f\u5668\u3067\u3082\u52d5\u4f5c\uff09<\/td>\n<td>\u53e4\u3044\u8907\u5408\u6a5f\u30fb\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306f\u975e\u5bfe\u5fdc\u306e\u5834\u5408\u3042\u308a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Google\u306f2025\u5e743\u670814\u65e5\u3092\u3082\u3063\u3066\u3001Gmail\u30fbGoogle\u30ab\u30ec\u30f3\u30c0\u30fc\u30fbGoogle\u30b3\u30f3\u30bf\u30af\u30c8\u3078\u306e\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30a2\u30af\u30bb\u30b9\u306bOAuth\u3092\u5fc5\u9808\u5316\u3057\u307e\u3057\u305f\u3002\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u4f8b\u5916\u7684\u306b\u4f7f\u3048\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u304c\u3001<strong>Google Workspace\u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u7121\u52b9\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/strong>\u3053\u306e\u524d\u63d0\u3092\u8e0f\u307e\u3048\u3066\u3001\u6b21\u306e\u7ae0\u3067\u74b0\u5883\u5225\u306e\u5177\u4f53\u7b56\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u53c2\u8003\uff08Google\u516c\u5f0f\uff09\uff1a<a href=\"https:\/\/support.google.com\/a\/answer\/14114704?hl=ja\" target=\"_blank\" rel=\"noopener\">\u5b89\u5168\u6027\u306e\u4f4e\u3044\u30a2\u30d7\u30ea\u304b\u3089 OAuth \u3078\u306e\u79fb\u884c<\/a><\/p>\n<h2>\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u3067\u9001\u308c\u306a\u3044\u3068\u304d\u306e\u5bfe\u7b564\u3064\u3068\u74b0\u5883\u5225\u306e\u9078\u3073\u65b9<\/h2>\n<p>Gmail\u306eSMTP\u3067\u9001\u308c\u306a\u304f\u306a\u3063\u305f\u3068\u304d\u306e\u5bfe\u7b56\u306f\u3001\u5927\u304d\u304f4\u3064\u3042\u308a\u307e\u3059\u3002<strong>\u3069\u308c\u304c\u6700\u9069\u304b\u306f\u5229\u7528\u74b0\u5883\u306b\u3088\u3063\u3066\u5909\u308f\u308b<\/strong>\u305f\u3081\u3001\u307e\u305a\u306f\u5168\u4f53\u50cf\u3092\u6bd4\u8f03\u8868\u3067\u628a\u63e1\u3057\u3001\u81ea\u793e\u306e\u72b6\u6cc1\u306b\u8fd1\u3044\u3082\u306e\u3092\u9078\u3076\u306e\u304c\u8fd1\u9053\u3067\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u5bfe\u7b56<\/th>\n<th>\u5411\u3044\u3066\u3044\u308b\u74b0\u5883<\/th>\n<th>\u4e3b\u306a\u30e1\u30ea\u30c3\u30c8<\/th>\n<th>\u6ce8\u610f\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>OAuth 2.0\u3078\u79fb\u884c<\/td>\n<td>\u30b7\u30b9\u30c6\u30e0\u3092\u81ea\u793e\u3067\u6539\u4fee\u3067\u304d\u3001\u5de5\u6570\u3092\u78ba\u4fdd\u3067\u304d\u308b<\/td>\n<td>\u3082\u3063\u3068\u3082\u5b89\u5168\u3067\u9577\u671f\u7684\u306b\u5b89\u5b9a<\/td>\n<td>\u30a2\u30d7\u30ea\u767b\u9332\u30fb\u5b9f\u88c5\u306e\u6280\u8853\u5de5\u6570\u304c\u5fc5\u8981<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9<\/td>\n<td>\u500b\u4eba\u5411\u3051Gmail\u3067\u77ed\u671f\u306e\u66ab\u5b9a\u5bfe\u5fdc\u3092\u3057\u305f\u3044<\/td>\n<td>\u8a2d\u5b9a\u306e\u8ca0\u62c5\u304c\u5c0f\u3055\u304f\u3001\u3059\u3050\u5bfe\u5fdc\u3067\u304d\u308b<\/td>\n<td>Workspace\u306f\u65e2\u5b9a\u3067\u7121\u52b9\u3002\u9577\u671f\u5229\u7528\u306f\u975e\u63a8\u5968<\/td>\n<\/tr>\n<tr>\n<td>Google Workspace\u306eSMTP\u30ea\u30ec\u30fc<\/td>\n<td>Workspace\u5951\u7d04\u304c\u3042\u308a\u56fa\u5b9aIP\u3092\u78ba\u4fdd\u3067\u304d\u308b<\/td>\n<td>\u57fa\u672c\u8a8d\u8a3c\u3092\u4f7f\u308f\u305aGmail\u7d4c\u7531\u3067\u9001\u308c\u308b<\/td>\n<td>\u56fa\u5b9aIP\u304c\u524d\u63d0\u3002\u8a2d\u5b9a\u30fb\u904b\u7528\u306e\u30cf\u30fc\u30c9\u30eb\u3042\u308a<\/td>\n<\/tr>\n<tr>\n<td>\u5916\u90e8SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9<\/td>\n<td>\u8907\u5408\u6a5f\u30fb\u30ec\u30ac\u30b7\u30fc\u74b0\u5883\u3084\u5927\u91cf\u914d\u4fe1\u304c\u3042\u308b<\/td>\n<td>\u8a2d\u5b9a\u5909\u66f4\u304c\u6700\u5c0f\u9650\u3067\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044<\/td>\n<td>\u30b5\u30fc\u30d3\u30b9\u9078\u5b9a\u30fb\u6bd4\u8f03\u304c\u5fc5\u8981<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>OAuth 2.0\u3078\u79fb\u884c\u3059\u308b\uff08\u3082\u3063\u3068\u3082\u63a8\u5968\uff09<\/h3>\n<p>Google\u304c\u516c\u5f0f\u306b\u63a8\u5968\u3059\u308b\u3001\u3082\u3063\u3068\u3082\u5b89\u5168\u306a\u65b9\u6cd5\u3067\u3059\u3002Gmail API\u3084SMTP AUTH\u3067\u3001OAuth 2.0\u306e\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3092\u4f7f\u3063\u3066\u8a8d\u8a3c\u3059\u308b\u4ed5\u7d44\u307f\u306b\u5207\u308a\u66ff\u3048\u307e\u3059\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u76f4\u63a5\u6271\u308f\u306a\u3044\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9762\u3067\u306e\u5b89\u5fc3\u611f\u304c\u5927\u304d\u3044\u306e\u304c\u7279\u9577\u3067\u3059\u3002<\/p>\n<p>\u4e3b\u8981\u306a\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\uff08Outlook\u3001Thunderbird\u3001Apple Mail\u306a\u3069\uff09\u306f\u3059\u3067\u306bOAuth 2.0\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305a\u306f\u6b21\u306e\u70b9\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u3044\u307e\u4f7f\u3063\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u304cOAuth 2.0\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b<\/li>\n<li>\u30bd\u30d5\u30c8\u304c\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u306a\u3063\u3066\u3044\u308b\u304b<\/li>\n<li>\u8a2d\u5b9a\u753b\u9762\u3067\u300cOAuth 2.0\u8a8d\u8a3c\u300d\u3092\u9078\u3079\u308b\u304b<\/li>\n<\/ul>\n<\/div>\n<p>\u81ea\u793e\u958b\u767a\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u9001\u4fe1\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001Google Cloud Platform\u3067\u306e\u30a2\u30d7\u30ea\u767b\u9332\u3001OAuth 2.0\u30af\u30e9\u30a4\u30a2\u30f3\u30c8ID\u306e\u53d6\u5f97\u3001\u8a8d\u8a3c\u30d5\u30ed\u30fc\u306e\u5b9f\u88c5\u304c\u5fc5\u8981\u3067\u3059\u3002\u6280\u8853\u5de5\u6570\u306f\u767a\u751f\u3057\u307e\u3059\u304c\u3001<strong>\u9577\u671f\u7684\u306b\u306f\u3082\u3063\u3068\u3082\u5b89\u5b9a\u3057\u305f\u65b9\u6cd5<\/strong>\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n<h3>\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u3067\u66ab\u5b9a\u5bfe\u5fdc\u3059\u308b<\/h3>\n<p>\u4f7f\u3063\u3066\u3044\u308b\u30bd\u30d5\u30c8\u304cOAuth 2.0\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u500b\u4eba\u5411\u3051Gmail\u3067\u3042\u308c\u3070\u30012\u6bb5\u968e\u8a8d\u8a3c\u3092\u6709\u52b9\u306b\u3057\u305f\u3046\u3048\u3067\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u767a\u884c\u3057\u3001SMTP\u8a8d\u8a3c\u306b\u4f7f\u3046\u65b9\u6cd5\u304c\u73fe\u6642\u70b9\u3067\u3082\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u8a2d\u5b9a\u306e\u8ca0\u62c5\u304c\u5c0f\u3055\u304f\u3001\u77ed\u671f\u9593\u3067\u5fa9\u65e7\u3067\u304d\u308b\u306e\u304c\u5229\u70b9\u3067\u3059\u3002\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u767a\u884c\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>Google\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u300d\u8a2d\u5b9a\u3092\u958b\u304f<\/li>\n<li>\u300c\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u300d\u3092\u9078\u629e\u3059\u308b<\/li>\n<li>\u30a2\u30d7\u30ea\u306e\u7a2e\u985e\u3068\u30c7\u30d0\u30a4\u30b9\u3092\u6307\u5b9a\u3057\u3066\u300c\u751f\u6210\u300d\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u305f\u3060\u3057\u3001\u3053\u308c\u306f\u3042\u304f\u307e\u3067\u5fdc\u6025\u51e6\u7f6e\u3067\u3059\u3002\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6f0f\u308c\u308b\u3068\u3001\u305d\u306e\u30a2\u30d7\u30ea\u7d4c\u7531\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u3078\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<strong>Google Workspace\u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u7121\u52b9\u5316\u3055\u308c\u3066\u304a\u308a\u3001Google\u81ea\u8eab\u3082\u9577\u671f\u5229\u7528\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/strong>\u5c06\u6765\u7684\u306b\u5ec3\u6b62\u3055\u308c\u308b\u53ef\u80fd\u6027\u3082\u3042\u308b\u305f\u3081\u3001\u65e9\u3081\u306bOAuth 2.0\u304b\u5916\u90e8SMTP\u30ea\u30ec\u30fc\u3078\u79fb\u884c\u3059\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<h3>Google Workspace\u306eSMTP\u30ea\u30ec\u30fc\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p>Google Workspace\u5951\u7d04\u304c\u3042\u308b\u5834\u5408\u306f\u3001Google\u7ba1\u7406\u30b3\u30f3\u30bd\u30fc\u30eb\u304b\u3089SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u57fa\u672c\u8a8d\u8a3c\u3092\u4f7f\u308f\u305a\u306bGmail\u7d4c\u7531\u3067\u9001\u4fe1\u3067\u304d\u307e\u3059\u3002\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306b\u3088\u308b\u5236\u9650\u3067\u8a8d\u8a3c\u3092\u4ee3\u66ff\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u8a2d\u5b9a\u306f\u7ba1\u7406\u30b3\u30f3\u30bd\u30fc\u30eb\u306e\u300c\u30a2\u30d7\u30ea \uff1e Google Workspace \uff1e Gmail \uff1e \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u300d\u304b\u3089\u884c\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001<strong>\u56fa\u5b9aIP\u30a2\u30c9\u30ec\u30b9\u304c\u5fc5\u8981<\/strong>\u306a\u305f\u3081\u3001\u30af\u30e9\u30a6\u30c9\u74b0\u5883\u3084IP\u304c\u5909\u52d5\u3059\u308b\u74b0\u5883\u3067\u306f\u904b\u7528\u304c\u96e3\u3057\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u81ea\u793e\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u3068\u76f8\u8ac7\u3057\u306a\u304c\u3089\u5224\u65ad\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/support.google.com\/a\/answer\/2956491\" target=\"_blank\" rel=\"noopener\">Google Workspace\u516c\u5f0f\u30d8\u30eb\u30d7\u300cSMTP\u30ea\u30ec\u30fc\u3067\u9001\u4fe1\u3059\u308b\u30e1\u30fc\u30eb\u3092Google\u7d4c\u7531\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u300d<\/a><\/p>\n<h3>\u5916\u90e8SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3078\u4e57\u308a\u63db\u3048\u308b<\/h3>\n<p>OAuth 2.0\u3078\u306e\u5bfe\u5fdc\u304c\u96e3\u3057\u3044\u8907\u5408\u6a5f\u3084\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u3001\u5916\u90e8\u306eSMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u5207\u308a\u66ff\u3048\u304c\u3082\u3063\u3068\u3082\u73fe\u5b9f\u7684\u3067\u3059\u3002Gmail\u306eSMTP\u3092\u4f7f\u308f\u305a\u306b\u6e08\u3080\u305f\u3081\u3001<strong>\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u306e\u5f71\u97ff\u3092\u305d\u3082\u305d\u3082\u53d7\u3051\u307e\u305b\u3093\u3002<\/strong>\u4e3b\u306a\u30e1\u30ea\u30c3\u30c8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u8907\u5408\u6a5f\u3084\u53e4\u3044\u30b7\u30b9\u30c6\u30e0\u306eSMTP\u8a2d\u5b9a\u3092\u3001\u6700\u5c0f\u9650\u306e\u5909\u66f4\u3067\u5207\u308a\u66ff\u3048\u3089\u308c\u308b<\/li>\n<li>SPF\uff0fDKIM\uff0fDMARC\u306a\u3069\u306e\u8a8d\u8a3c\u5bfe\u5fdc\u3092\u30b5\u30fc\u30d3\u30b9\u5074\u304c\u62c5\u3063\u3066\u304f\u308c\u308b<\/li>\n<li>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u7ba1\u7406\u304c\u4e0d\u8981\u306b\u306a\u308a\u3001\u30e1\u30fc\u30eb\u5230\u9054\u7387\u304c\u5b89\u5b9a\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>SMTP\u30ea\u30ec\u30fc\u306e\u4ed5\u7d44\u307f\u3084\u9078\u3073\u65b9\u3092\u3082\u3046\u5c11\u3057\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3082\u3042\u308f\u305b\u3066\u3054\u89a7\u304f\u3060\u3055\u3044\u3002\u57fa\u790e\u304b\u3089\u30e1\u30ea\u30c3\u30c8\u307e\u3067\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/smtprelay\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/DALL\u00b7E-2023-11-29-09.56.23-A-business-oriented-blog-header-image-for-the-article-What-is-SMTP-Relay_-Gently-Explaining-the-Mechanics-of-Email-Sending-Email-Relay.-This-desig.jpg\" alt=\"SMTP\u30ea\u30ec\u30fc\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4ed5\u7d44\u307f\u3092\u512a\u3057\u304f\u89e3\u8aac\u3010\u30e1\u30fc\u30eb\u30ea\u30ec\u30fc\u3011\" width=\"90\" height=\"51\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">SMTP\u30ea\u30ec\u30fc\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4ed5\u7d44\u307f\u3092\u512a\u3057\u304f\u89e3\u8aac\u3010\u30e1\u30fc\u30eb\u30ea\u30ec\u30fc\u3011<\/div>\n    <div class=\"blogcard_excerpt\">\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u3084Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u308b\u30e1\u30fc\u30eb\u304c\u3001\u76f8\u624b\u306e\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u304b\u305a\u56f0\u3063\u3066\u3044\u307e\u305b\u3093\u304b\u3002\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u76f4\u63a5\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>Google Workspace\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306e\u9032\u3081\u65b9<\/h2>\n<p>Google Workspace\u3092\u4f7f\u3063\u3066\u3044\u308b\u7d44\u7e54\u3067\u306f\u3001\u8a8d\u8a3c\u65b9\u5f0f\u306e\u5909\u66f4\u304c\u5168\u793e\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u7ba1\u7406\u8005\u306b\u3088\u308b\u8a2d\u5b9a\u78ba\u8a8d\u30fb\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5468\u77e5\u30fb\u79fb\u884c\u652f\u63f4\u3092\u8a08\u753b\u7684\u306b\u9032\u3081\u308b\u3053\u3068\u3067\u3001\u30c8\u30e9\u30d6\u30eb\u3092\u672a\u7136\u306b\u9632\u3052\u307e\u3059\u3002\u500b\u4eba\u5229\u7528\u3088\u308a\u3082\u5f71\u97ff\u304c\u5927\u304d\u3044\u3076\u3093\u3001\u6bb5\u53d6\u308a\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h3>\u7ba1\u7406\u8005\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u306e\u8a2d\u5b9a\u78ba\u8a8d<\/h3>\n<p>\u307e\u305a\u306f\u7ba1\u7406\u8005\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u3092\u898b\u76f4\u3057\u307e\u3059\u3002OAuth 2.0\u3092\u5fc5\u9808\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u57fa\u672c\u8a8d\u8a3c\u3092\u4f7f\u3063\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u79fb\u884c\u3092\u4fc3\u305b\u307e\u3059\u3002\u7ba1\u7406\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u306f\u3001\u5404\u30e6\u30fc\u30b6\u30fc\u304c\u57fa\u672c\u8a8d\u8a3c\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3082\u78ba\u8a8d\u3067\u304d\u308b\u305f\u3081\u3001\u5bfe\u8c61\u8005\u3092\u7279\u5b9a\u3057\u3066\u500b\u5225\u306b\u30d5\u30a9\u30ed\u30fc\u3059\u308b\u3068\u30b9\u30e0\u30fc\u30ba\u3067\u3059\u3002\u78ba\u8a8d\u3057\u3066\u304a\u304d\u305f\u3044\u8a2d\u5b9a\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>OAuth 2.0\u306e\u5fc5\u9808\u5316<\/li>\n<li>\u30a2\u30d7\u30ea\u5358\u4f4d\u306e\u30a2\u30af\u30bb\u30b9\u5236\u5fa1<\/li>\n<li>\u30e6\u30fc\u30b6\u30fc\u5225\u306e\u57fa\u672c\u8a8d\u8a3c\u5229\u7528\u72b6\u6cc1\u306e\u628a\u63e1<\/li>\n<\/ul>\n<\/div>\n<p>\u8a2d\u5b9a\u5909\u66f4\u306f\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff\u304c\u5927\u304d\u3044\u305f\u3081\u3001\u4e8b\u524d\u306e\u5468\u77e5\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u5909\u66f4\u5f8c\u306f\u9001\u53d7\u4fe1\u304c\u6b63\u5e38\u306b\u884c\u3048\u308b\u304b\u3092\u30c6\u30b9\u30c8\u3057\u3001\u4e0d\u5177\u5408\u304c\u3042\u308c\u3070\u901f\u3084\u304b\u306b\u5bfe\u5fdc\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u5f93\u696d\u54e1\u30fb\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5468\u77e5<\/h3>\n<p>\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u306e\u5f71\u97ff\u3068\u5bfe\u5fdc\u65b9\u6cd5\u306f\u3001\u6280\u8853\u306b\u4e0d\u6163\u308c\u306a\u5f93\u696d\u54e1\u306b\u3082\u5206\u304b\u308b\u5f62\u3067\u4f1d\u3048\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002\u8a2d\u5b9a\u624b\u9806\u3084\u4ee3\u66ff\u624b\u6bb5\u3092\u307e\u3068\u3081\u305f\u30de\u30cb\u30e5\u30a2\u30eb\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3068\u3001\u554f\u3044\u5408\u308f\u305b\u3084\u6df7\u4e71\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u5468\u77e5\u306f\u30e1\u30fc\u30eb\u3060\u3051\u306b\u983c\u3089\u305a\u3001\u793e\u5185\u30dd\u30fc\u30bf\u30eb\u3084\u5b9a\u4f8b\u4f1a\u8b70\u306a\u3069\u8907\u6570\u306e\u30c1\u30e3\u30cd\u30eb\u3092\u4f75\u7528\u3059\u308b\u3068\u52b9\u679c\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002\u5f71\u97ff\u306e\u5927\u304d\u3044\u30e6\u30fc\u30b6\u30fc\u306b\u306f\u500b\u5225\u30d5\u30a9\u30ed\u30fc\u3092\u884c\u3044\u3001\u60f3\u5b9a\u3055\u308c\u308b\u8cea\u554f\u3092FAQ\u3068\u3057\u3066\u6574\u7406\u3057\u3066\u304a\u304f\u3068\u5bfe\u5fdc\u304c\u697d\u306b\u306a\u308a\u307e\u3059\u3002\u4e00\u5ea6\u3067\u7d42\u308f\u3089\u305b\u305a\u3001\u72b6\u6cc1\u3092\u898b\u306a\u304c\u3089\u60c5\u5831\u3092\u66f4\u65b0\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u79fb\u884c\u6642\u306e\u30b5\u30dd\u30fc\u30c8\u3068\u6ce8\u610f\u70b9<\/h3>\n<p>\u79fb\u884c\u306b\u4e0d\u5b89\u304c\u3042\u308b\u5834\u5408\u306f\u3001Google Workspace\u306e\u516c\u5f0f\u30b5\u30dd\u30fc\u30c8\u3084\u5404\u30a2\u30d7\u30ea\u306e\u30d8\u30eb\u30d7\u3092\u6d3b\u7528\u3057\u3001\u5fc5\u8981\u306a\u60c5\u5831\u3092\u4e8b\u524d\u306b\u96c6\u3081\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002\u793e\u5185\u3067\u306e\u5bfe\u5fdc\u304c\u96e3\u3057\u3044\u3068\u304d\u306f\u3001\u5916\u90e8\u306eIT\u30b5\u30dd\u30fc\u30c8\u696d\u8005\u306b\u76f8\u8ac7\u3057\u305f\u308a\u3001\u79fb\u884c\u4f5c\u696d\u305d\u306e\u3082\u306e\u3092\u4ee3\u884c\u3057\u3066\u3082\u3089\u3046\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f5c\u696d\u524d\u306b\u306f\u5fc5\u305a\u30c7\u30fc\u30bf\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u308a\u3001\u8a2d\u5b9a\u30df\u30b9\u3084\u969c\u5bb3\u304c\u8d77\u304d\u3066\u3082\u5143\u306b\u623b\u305b\u308b\u72b6\u614b\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002\u4f5c\u696d\u5f8c\u306f\u6b21\u306e\u70b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30e1\u30fc\u30eb\u306e\u9001\u53d7\u4fe1\u304c\u6b63\u5e38\u306b\u884c\u3048\u308b\u304b<\/li>\n<li>\u8a8d\u8a3c\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3044\u306a\u3044\u304b<\/li>\n<li>\u4ed6\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u5f71\u97ff\u304c\u51fa\u3066\u3044\u306a\u3044\u304b<\/li>\n<\/ul>\n<\/div>\n<h2>\u3042\u308f\u305b\u3066\u898b\u76f4\u3057\u305f\u3044\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/h2>\n<p>\u57fa\u672c\u8a8d\u8a3c\u306e\u5ec3\u6b62\u306f\u3001\u793e\u5185\u306e\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4e00\u6bb5\u5f15\u304d\u4e0a\u3052\u308b\u826f\u3044\u6a5f\u4f1a\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u8a8d\u8a3c\u65b9\u5f0f\u306e\u79fb\u884c\u3068\u3042\u308f\u305b\u3066\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u4fdd\u8b77\u306e\u57fa\u672c\u3092\u7d44\u7e54\u5168\u4f53\u3067\u5fb9\u5e95\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002\u3053\u3053\u3067\u306f\u7279\u306b\u52b9\u679c\u306e\u9ad8\u30443\u3064\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>\u4e8c\u6bb5\u968e\u8a8d\u8a3c\u3092\u6709\u52b9\u306b\u3059\u308b<\/h3>\n<p>\u4e8c\u6bb5\u968e\u8a8d\u8a3c\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u52a0\u3048\u3066\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3084\u8a8d\u8a3c\u30a2\u30d7\u30ea\u3067\u751f\u6210\u3055\u308c\u308b\u30b3\u30fc\u30c9\u3092\u4f7f\u3046\u4ed5\u7d44\u307f\u3067\u3059\u3002<strong>\u4eee\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6f0f\u308c\u3066\u3082\u3001\u30b3\u30fc\u30c9\u304c\u306a\u3051\u308c\u3070\u7b2c\u4e09\u8005\u306f\u30ed\u30b0\u30a4\u30f3\u3067\u304d\u307e\u305b\u3093\u3002<\/strong>Google\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30da\u30fc\u30b8\u304b\u3089\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u6b21\u306e\u6e96\u5099\u3092\u3057\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3084\u8a8d\u8a3c\u30a2\u30d7\u30ea\u306e\u767b\u9332<\/li>\n<li>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u306e\u751f\u6210\u3068\u4fdd\u7ba1<\/li>\n<li>\u78ba\u8a8d\u30b3\u30fc\u30c9\u306e\u53d7\u4fe1\u65b9\u6cd5\uff08SMS\uff0f\u30a2\u30d7\u30ea\uff09\u306e\u9078\u629e<\/li>\n<\/ul>\n<\/div>\n<h3>\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u9069\u5207\u306a\u7ba1\u7406<\/h3>\n<p>\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u5b9a\u671f\u7684\u306b\u898b\u76f4\u3057\u3001\u8907\u6570\u30b5\u30fc\u30d3\u30b9\u3067\u306e\u4f7f\u3044\u56de\u3057\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u57fa\u672c\u3067\u3059\u30021\u3064\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6f0f\u308c\u308b\u3068\u3001\u540c\u3058\u3082\u306e\u3092\u4f7f\u3046\u4ed6\u306e\u30b5\u30fc\u30d3\u30b9\u307e\u3067\u828b\u3065\u308b\u5f0f\u306b\u72d9\u308f\u308c\u307e\u3059\u3002\u7ba1\u7406\u304c\u7169\u96d1\u306b\u306a\u308a\u304c\u3061\u306a\u5834\u5408\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306e\u6d3b\u7528\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u5f37\u56fa\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u81ea\u52d5\u751f\u6210<\/li>\n<li>\u30b5\u30fc\u30d3\u30b9\u3054\u3068\u306b\u7570\u306a\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u4e00\u5143\u7ba1\u7406<\/li>\n<li>\u6f0f\u3048\u3044\u30c1\u30a7\u30c3\u30af\u6a5f\u80fd\uff08\u5bfe\u5fdc\u30bd\u30d5\u30c8\u306e\u5834\u5408\uff09<\/li>\n<\/ul>\n<\/div>\n<h3>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30fb\u4e0d\u5be9\u30e1\u30fc\u30eb\u3078\u306e\u8b66\u6212<\/h3>\n<p>\u8a8d\u8a3c\u3092\u5f37\u5316\u3057\u3066\u3082\u3001\u5229\u7528\u8005\u304c\u507d\u30e1\u30fc\u30eb\u306b\u8a8d\u8a3c\u60c5\u5831\u3092\u5165\u529b\u3057\u3066\u3057\u307e\u3048\u3070\u610f\u5473\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u306f\u672c\u7269\u305d\u3063\u304f\u308a\u306e\u898b\u305f\u76ee\u3067\u3001\u300c\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u505c\u6b62\u3055\u308c\u307e\u3059\u300d\u306a\u3069\u7126\u3089\u305b\u308b\u6587\u9762\u304c\u591a\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002\u53d7\u3051\u53d6\u3063\u305f\u3089\u6b21\u306e\u70b9\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u5dee\u51fa\u4eba\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u516c\u5f0f\u306e\u3082\u306e\u304b<\/li>\n<li>\u4e0d\u81ea\u7136\u306a\u65e5\u672c\u8a9e\u3084\u8aa4\u5b57\u8131\u5b57\u304c\u306a\u3044\u304b<\/li>\n<li>\u30ea\u30f3\u30af\u5148URL\u304c\u6b63\u898f\u306e\u30c9\u30e1\u30a4\u30f3\u304b\u3001https\u3067\u59cb\u307e\u3063\u3066\u3044\u308b\u304b<\/li>\n<\/ul>\n<\/div>\n<p>\u5c11\u3057\u3067\u3082\u9055\u548c\u611f\u304c\u3042\u308c\u3070\u3001\u30ea\u30f3\u30af\u306f\u30af\u30ea\u30c3\u30af\u305b\u305a\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002\u5224\u65ad\u306b\u8ff7\u3046\u5834\u5408\u306f\u3001\u81ea\u5df1\u5224\u65ad\u305b\u305a\u793e\u5185\u306e\u60c5\u5831\u30b7\u30b9\u30c6\u30e0\u62c5\u5f53\u306b\u76f8\u8ac7\u3059\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<h2>Gmail\u306e\u9001\u4fe1\u30c8\u30e9\u30d6\u30eb\u3092\u6839\u672c\u304b\u3089\u89e3\u6c7a\u3059\u308b\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h2>\n<p>\u57fa\u672c\u8a8d\u8a3c\u306e\u5ec3\u6b62\u3067\u300c\u9001\u308c\u306a\u3044\u300d\u72b6\u614b\u304c\u8d77\u304d\u308b\u306e\u306f\u3001Gmail\u306eSMTP\u3092\u76f4\u63a5\u4f7f\u3063\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002\u88cf\u3092\u8fd4\u305b\u3070\u3001<strong>\u30e1\u30fc\u30eb\u9001\u4fe1\u305d\u306e\u3082\u306e\u3092\u5c02\u7528\u306e\u914d\u4fe1\u57fa\u76e4\u306b\u4efb\u305b\u3066\u3057\u307e\u3048\u3070\u3001Google\u306e\u4ed5\u69d8\u5909\u66f4\u306b\u632f\u308a\u56de\u3055\u308c\u305a\u306b\u6e08\u307f\u307e\u3059\u3002<\/strong>\u3053\u3053\u3067\u306f\u3001\u74b0\u5883\u3084\u76ee\u7684\u306b\u5408\u308f\u305b\u3066\u9078\u3079\u308b2\u3064\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\uff08SMTP\u30ea\u30ec\u30fc\uff09\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>\u5916\u90e8\u306eSMTP\u30ea\u30ec\u30fc\u30fb\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u3068\u3001\u9001\u4fe1\u30a4\u30f3\u30d5\u30e9\u306e\u904b\u7528\u3084\u5230\u9054\u7387\u5bfe\u7b56\u3092\u307e\u308b\u3054\u3068\u4efb\u305b\u3089\u308c\u307e\u3059\u3002\u8907\u5408\u6a5f\u3084\u30ec\u30ac\u30b7\u30fc\u74b0\u5883\u306e\u9001\u4fe1\u30c8\u30e9\u30d6\u30eb\u306b\u3082\u5f37\u304f\u3001\u62c5\u5f53\u8005\u306e\u8ca0\u8377\u3092\u5927\u304d\u304f\u6e1b\u3089\u305b\u308b\u306e\u304c\u5229\u70b9\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>Gmail\u306e\u4ed5\u69d8\u5909\u66f4\u3084\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u306e\u5f71\u97ff\u3092\u53d7\u3051\u305a\u306b\u9001\u4fe1\u3067\u304d\u308b<\/li>\n<li>SPF\uff0fDKIM\uff0fDMARC\u306a\u3069\u306e\u8a8d\u8a3c\u5bfe\u5fdc\u3092\u30b5\u30fc\u30d3\u30b9\u5074\u304c\u62c5\u3063\u3066\u304f\u308c\u308b<\/li>\n<li>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u5c02\u9580\u306b\u7ba1\u7406\u3059\u308b\u305f\u3081\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u53d7\u3051\u306b\u304f\u3044<\/li>\n<li>\u30b5\u30fc\u30d0\u30fc\u306e\u69cb\u7bc9\u30fb\u904b\u7528\u304c\u4e0d\u8981\u306b\u306a\u308a\u3001\u904b\u7528\u30b3\u30b9\u30c8\u3068\u5de5\u6570\u3092\u524a\u6e1b\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u3068\u304f\u306b\u8907\u5408\u6a5f\u30fb\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u9001\u4fe1\u3084\u3001\u5927\u91cf\u914d\u4fe1\u3092\u5b89\u5b9a\u3055\u305b\u305f\u3044\u30b1\u30fc\u30b9\u3067\u306f\u3001SMTP\u30ea\u30ec\u30fc\u306e\u5c0e\u5165\u52b9\u679c\u304c\u5927\u304d\u304f\u8868\u308c\u307e\u3059\u3002<\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastengine\u300d<\/h3>\n<p><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/10\/blastengine.jpg\" alt=\"blastengine\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1303\" height=\"590\" class=\"alignnone wp-image-19575 size-full\" \/><\/a><\/p>\n<p>blastengine\uff08\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff09\u306f\u3001\u304a\u5ba2\u69d8\u306e\u30b7\u30b9\u30c6\u30e0\u3068SMTP\u30ea\u30ec\u30fc\u3084API\u3067\u9023\u643a\u3057\u3001\u5927\u91cf\u30e1\u30fc\u30eb\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3092\u9ad8\u901f\u30fb\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u306eSMTP\u60c5\u5831\u3092\u66f8\u304d\u63db\u3048\u308b\u304b\u3001API\u3092\u7d44\u307f\u8fbc\u3080\u3060\u3051\u3067\u5c0e\u5165\u3067\u304d\u3001\u8907\u5408\u6a5f\u3084\u30ec\u30ac\u30b7\u30fc\u74b0\u5883\u306e\u9001\u4fe1\u30c8\u30e9\u30d6\u30eb\u306e\u53d7\u3051\u76bf\u3068\u3057\u3066\u3082\u6700\u9069\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc\uff1a\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u3078\u7d44\u307f\u8fbc\u307f\u3084\u3059\u304f\u3001\u8a2d\u5b9a\u306e\u307f\u3067\u9001\u4fe1\u74b0\u5883\u3092\u79fb\u884c\u3067\u304d\u308b<\/li>\n<li>99\uff05\u4ee5\u4e0a\u306e\u9ad8\u3044\u5230\u9054\u7387\uff1a\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u30fbISP\u3078\u306e\u500b\u5225\u9001\u4fe1\u30ed\u30b8\u30c3\u30af\u3067\u78ba\u5b9f\u306b\u5c4a\u3051\u308b<\/li>\n<li>SPF\uff0fDKIM\uff0fDMARC\u5bfe\u5fdc\uff1a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u56de\u907f<\/li>\n<li>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc\uff1a\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u904b\u7528\u8ca0\u8377\u3092\u5927\u5e45\u306b\u524a\u6e1b<\/li>\n<\/ul>\n<\/div>\n<p>\u904b\u7528\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306fblastengine\u5074\u304c\u884c\u3046\u305f\u3081\u3001\u5e38\u306b\u9ad8\u3044IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002\u521d\u671f\u8cbb\u7528\u306f\u7121\u6599\u3067\u3001\u6708\u984d3,000\u5186\u304b\u3089\u5229\u7528\u53ef\u80fd\u3002\u65e5\u672c\u8a9e\u3067\u306e\u96fb\u8a71\u30fb\u30e1\u30fc\u30eb\u30b5\u30dd\u30fc\u30c8\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u6280\u8853\u7684\u306a\u4e0d\u660e\u70b9\u3082\u5b89\u5fc3\u3057\u3066\u76f8\u8ac7\u3067\u304d\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5165\u529b\u306e\u307f\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastengine.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> blastengine\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastengine.jp\/\">https:\/\/blastengine.jp\/<\/a><\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/h3>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/07\/blastmail-top.jpg\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1200\" height=\"630\" class=\"alignnone wp-image-15955 size-full\" \/><\/a><\/p>\n<p>\u30b7\u30b9\u30c6\u30e0\u9001\u4fe1\u3067\u306f\u306a\u304f\u3001\u30e1\u30eb\u30de\u30ac\u3084\u304a\u77e5\u3089\u305b\u306e\u4e00\u6589\u914d\u4fe1\u3068\u3044\u3063\u305f\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u7528\u9014\u304c\u30e1\u30a4\u30f3\u306a\u3089\u3001\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u5411\u3044\u3066\u3044\u307e\u3059\u3002\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306f15\u5e74\u9023\u7d9a\u3067\u5c0e\u5165\u793e\u6570\u30b7\u30a7\u30a2No.1\u3092\u7372\u5f97\u3057\u300127,000\u793e\u4ee5\u4e0a\u306b\u5c0e\u5165\u3055\u308c\u3066\u3044\u308b\u65e5\u672c\u6700\u5927\u7d1a\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u3001\u76f4\u611f\u7684\u306a\u7ba1\u7406\u753b\u9762\u304b\u3089HTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u30fb\u914d\u4fe1\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u9ad8\u3044\u5230\u9054\u7387\uff1aGmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u57fa\u76e4\u3067\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u56de\u907f<\/li>\n<li>\u52b9\u679c\u6e2c\u5b9a\uff1a\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u628a\u63e1\u3057\u3001\u6b21\u306e\u65bd\u7b56\u306b\u6d3b\u304b\u305b\u308b<\/li>\n<li>\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\uff1a\u8aad\u8005\u306e\u5c5e\u6027\u3084\u884c\u52d5\u5c65\u6b74\u3067\u30b0\u30eb\u30fc\u30d7\u3092\u4f5c\u308a\u3001\u6700\u9069\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u914d\u4fe1<\/li>\n<li>API\u9023\u643a\uff1aMA\u30fbCRM\u306a\u3069\u4ed6\u30b7\u30b9\u30c6\u30e0\u3068\u9023\u643a\u3057\u3066\u696d\u52d9\u3092\u52b9\u7387\u5316<\/li>\n<\/ul>\n<\/div>\n<p>\u696d\u754c\u6700\u5b89\u30af\u30e9\u30b9\u306e\u6599\u91d1\u3067\u5927\u898f\u6a21\u914d\u4fe1\u306b\u3082\u5bfe\u5fdc\u3057\u3001\u96fb\u8a71\u30fb\u30e1\u30fc\u30eb\u30fb\u30c1\u30e3\u30c3\u30c8\u306e\u30b5\u30dd\u30fc\u30c8\u4f53\u5236\u3082\u5145\u5b9f\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3067\u64cd\u4f5c\u611f\u3092\u78ba\u304b\u3081\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> \u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastmail.jp\/\">\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/a><\/p>\n<p>\u306a\u304a\u3001Gmail\u306e\u65b0\u3057\u3044\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u5bfe\u5fdc\u3084\u300c\u5c4a\u304b\u306a\u3044\u30fb\u9001\u308c\u306a\u3044\u300d\u5168\u822c\u306e\u89e3\u6c7a\u7b56\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u307e\u3068\u3081\u3066\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail\/gmail-not-reach\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/08\/gmail-not-reach-1.jpg\" alt=\"Gmail\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044(\u53d7\u4fe1\u3067\u304d\u306a\u3044)\u30fb\u9001\u308c\u306a\u3044\uff01\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u30685\u3064\u306e\u89e3\u6c7a\u7b56\" width=\"90\" height=\"60\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">Gmail\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044(\u53d7\u4fe1\u3067\u304d\u306a\u3044)\u30fb\u9001\u308c\u306a\u3044\uff01\u65b0\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u30685\u3064\u306e\u89e3\u6c7a\u7b56<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u7a81\u7136\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304f\u306a\u308b\uff08\u53d7\u4fe1\u30fb\u9001\u4fe1\u304c\u3067\u304d\u306a\u3044\uff09\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u6642\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">Q\uff1aGmail\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u3067\u30e1\u30fc\u30eb\u304c\u9001\u308c\u306a\u304f\u306a\u3063\u305f\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a<strong>2025\u5e743\u670814\u65e5\u306bGoogle\u304c\u57fa\u672c\u8a8d\u8a3c\uff08Basic\u8a8d\u8a3c\uff09\u3092\u5ec3\u6b62\u3057\u305f<\/strong>\u305f\u3081\u3067\u3059\u3002\u4ee5\u964d\u306f\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3060\u3051\u306e\u8a8d\u8a3c\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u306a\u304f\u306a\u308a\u3001OAuth 2.0\u306a\u3069\u306e\u5b89\u5168\u306a\u8a8d\u8a3c\u65b9\u5f0f\u3078\u306e\u79fb\u884c\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u306e\u306f\u3069\u3093\u306a\u74b0\u5883\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aOutlook\u3084Thunderbird\u306a\u3069\u306e\u53e4\u3044\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u3001\u8907\u5408\u6a5f\u30fb\u30b9\u30ad\u30e3\u30ca\u3001\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u3084\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089Gmail\u306eSMTP\u3078\u63a5\u7d9a\u3057\u3066\u3044\u305f\u74b0\u5883\u304c\u5bfe\u8c61\u3067\u3059\u3002<strong>OAuth 2.0\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u30a2\u30d7\u30ea\u3084\u30c7\u30d0\u30a4\u30b9\u306f\u30e1\u30fc\u30eb\u9001\u4fe1\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u4eca\u5f8c\u3082\u4f7f\u3048\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u500b\u4eba\u5411\u3051Gmail\u3067\u306f\u30012\u6bb5\u968e\u8a8d\u8a3c\u3092\u6709\u52b9\u306b\u3059\u308c\u3070\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5f15\u304d\u7d9a\u304d\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057<strong>Google Workspace\u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067OFF\u306b\u306a\u3063\u3066\u304a\u308a\u3001Google\u3082\u9577\u671f\u5229\u7528\u306f\u63a8\u5968\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/strong>\u4e2d\u9577\u671f\u7684\u306b\u306fOAuth 2.0\u304b\u5916\u90e8SMTP\u30ea\u30ec\u30fc\u3078\u306e\u79fb\u884c\u304c\u5b89\u5168\u3067\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u5916\u90e8SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3068\u306f\u3069\u3093\u306a\u4ed5\u7d44\u307f\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a<strong>\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u3084\u8907\u5408\u6a5f\u304b\u3089\u306e\u9001\u4fe1\u3092\u3001\u5c02\u7528\u30b5\u30fc\u30d0\u30fc\u7d4c\u7531\u3067\u4ee3\u308f\u308a\u306b\u884c\u3046\u30b5\u30fc\u30d3\u30b9<\/strong>\u3067\u3059\u3002\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u306e\u5f71\u97ff\u3092\u53d7\u3051\u305a\u3001\u72ec\u81ea\u306eIP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u7ba1\u7406\u3084\u8a8d\u8a3c\u5bfe\u5fdc\uff08SPF\uff0fDKIM\uff0fDMARC\uff09\u306b\u3088\u3063\u3066\u3001\u9ad8\u3044\u5230\u9054\u7387\u3067\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u3089\u308c\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aOAuth 2.0\u3078\u306e\u5bfe\u5fdc\u304c\u96e3\u3057\u3044\u5834\u5408\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aOAuth 2.0\u306e\u5b9f\u88c5\u306b\u306f\u3001\u30a2\u30d7\u30ea\u767b\u9332\u3084\u30af\u30e9\u30a4\u30a2\u30f3\u30c8ID\u306e\u53d6\u5f97\u3001\u8a8d\u8a3c\u30d5\u30ed\u30fc\u306e\u5b9f\u88c5\u3068\u3044\u3063\u305f\u6280\u8853\u5de5\u6570\u304c\u304b\u304b\u308a\u307e\u3059\u3002<strong>\u8907\u5408\u6a5f\u3084\u30ec\u30ac\u30b7\u30fc\u74b0\u5883\u3067\u5bfe\u5fdc\u304c\u96e3\u3057\u3044\u5834\u5408\u306f\u3001\u5916\u90e8SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u5207\u308a\u66ff\u3048\u304c\u73fe\u5b9f\u7684\u306a\u4ee3\u66ff\u624b\u6bb5<\/strong>\u3067\u3059\u3002Gmail\u306eSMTP\u3092\u4f7f\u308f\u305a\u306b\u6e08\u3080\u305f\u3081\u3001\u5ec3\u6b62\u306e\u5f71\u97ff\u305d\u306e\u3082\u306e\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002<\/dd>\n<\/dl><\/div>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>Google\u306e\u57fa\u672c\u8a8d\u8a3c\u5ec3\u6b62\u306b\u3088\u308a\u3001\u5bfe\u5fdc\u304c\u9045\u308c\u3066\u3044\u308b\u74b0\u5883\u3067\u306fGmail\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u3067\u30e1\u30fc\u30eb\u304c\u9001\u308c\u306a\u3044\u30c8\u30e9\u30d6\u30eb\u304c\u8d77\u304d\u3066\u3044\u307e\u3059\u3002\u4eca\u5f8c\u306fOAuth 2.0\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u5b89\u5168\u306a\u8a8d\u8a3c\u65b9\u5f0f\u304c\u524d\u63d0\u3068\u306a\u308b\u305f\u3081\u3001\u672a\u5bfe\u5fdc\u306e\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u3084\u6a5f\u5668\u306f\u65e9\u3081\u306b\u898b\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u7b56\u306f\u3001OAuth 2.0\u3078\u306e\u79fb\u884c\u30fb\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u3067\u306e\u66ab\u5b9a\u5bfe\u5fdc\u30fbGoogle 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