{"id":3269,"date":"2025-10-17T10:30:20","date_gmt":"2025-10-17T01:30:20","guid":{"rendered":"https:\/\/ec2-54-238-200-5.ap-northeast-1.compute.amazonaws.com\/blog\/?p=3269"},"modified":"2025-10-17T10:51:32","modified_gmt":"2025-10-17T01:51:32","slug":"%e6%90%ba%e5%b8%af%e3%82%ad%e3%83%a3%e3%83%aa%e3%82%a2%e3%81%ae%e8%bf%b7%e6%83%91%e3%83%a1%e3%83%bc%e3%83%ab%e5%af%be%e7%ad%96%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3269","title":{"rendered":"\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u3064\u3044\u3066"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2025\/10\/20251017_blog.png\" alt=\"\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306b\u3064\u3044\u3066\" width=\"100%\" class=\"aligncenter size-full wp-image-19603\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2025\/10\/20251017_blog.png 650w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2025\/10\/20251017_blog-300x185.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2025\/10\/20251017_blog-225x139.png 225w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<h4>\u306f\u3058\u3081\u306b<\/h4>\n<p>\u300c<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3060\" rel=\"noopener\" target=\"_blank\">SendGrid\u304b\u3089\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u5411\u3051\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u65b9\u6cd5<\/a>\u300d\u3067\u306f\u3001\u30e1\u30fc\u30eb\u306e\u5f62\u5f0f\u3084\u6587\u5b57\u30b3\u30fc\u30c9\u3092\u4e2d\u5fc3\u306b\u3001\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u969b\u306e\u5177\u4f53\u7684\u306a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u30e1\u30fc\u30eb\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u6a5f\u80fd\u306b\u7126\u70b9\u3092\u7d5e\u3063\u3066\u3001Twilio SendGrid\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u308b\u969b\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306f\u65e5\u3005\u9032\u5316\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u306f\u3042\u304f\u307e\u3067\u3082\u73fe\u6642\u70b9\u3067\u78ba\u8a8d\u3055\u308c\u305f\u6319\u52d5\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>\u5404\u793e\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56<\/h4>\n<p>\u4e00\u53e3\u306b\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u3068\u8a00\u3063\u3066\u3082\u3001\u5404\u793e\u69d8\u3005\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u6a5f\u80fd\u540d\u79f0\u3084\u52d5\u4f5c\u3082\u5404\u793e\u3067\u7570\u306a\u308b\u306e\u3067\u3001\u5927\u304d\u304f\u30ab\u30c6\u30b4\u30e9\u30a4\u30ba\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u62d2\u5426\u30ea\u30b9\u30c8<\/strong><br \/>\u62d2\u5426\u30ea\u30b9\u30c8\u306b\u5165\u3063\u3066\u3044\u308b\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\uff08\u307e\u305f\u306f\u30c9\u30e1\u30a4\u30f3\uff09\u304b\u3089\u306e\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30b1\u30fc\u30bf\u30a4\u30e1\u30fc\u30eb\u306e\u307f\u53d7\u4fe1<\/strong><br \/>\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u30e1\u30fc\u30eb\u4ee5\u5916\u304b\u3089\u306e\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u306a\u308a\u3059\u307e\u3057\u898f\u5236<\/strong><br \/>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u305f\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002\u5224\u65ad\u306b\u306fSPF\u3084Sender ID\u306a\u3069\u3092\u5229\u7528\u3057\u305f\u308a\u3001\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u306eMX\u30ec\u30b3\u30fc\u30c9\u306e\u5b58\u5728\u3092\u78ba\u8a8d\u3057\u305f\u308a\u3057\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>URL\uff0fHTML\u898f\u5236<\/strong><br \/>\u672c\u6587\u306bURL\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u30e1\u30fc\u30eb\u3084\u3001HTML\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30b3\u30f3\u30c6\u30f3\u30c4\u898f\u5236<\/strong><br \/>\u672c\u6587\u306e\u5185\u5bb9\u3092\u6a5f\u68b0\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u305f\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h4>\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u305f\u969b\u306e\u6319\u52d5<\/h4>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u305f\u5834\u5408\u306e\u6319\u52d5\u306f\u5404\u793e\u3067\u7570\u306a\u308a\u307e\u3059\u3002\u78ba\u8a8d\u3057\u305f\u9650\u308a\u3001\u4ee5\u4e0b\u306e\u5fdc\u7b54\u304c\u8fd4\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li><strong>\u6b63\u5e38\u53d7\u4fe1<\/strong><br \/>\u76f8\u624b\u5148\u30b5\u30fc\u30d0\u304b\u3089\u6b63\u5e38\u306b\u53d7\u4fe1\u3057\u305f\u5fdc\u7b54\u304c\u8fd4\u3063\u305f\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u643a\u5e2f\u96fb\u8a71\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304d\u307e\u305b\u3093\u3002SendGrid\u5074\u3067\u306fDelivered\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u5fdc\u7b54\u3060\u3051\u3067\u306f\u3001\u5b9f\u969b\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u3066\u3044\u308b\u304b\u306f\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u30d0\u30a6\u30f3\u30b9<\/strong><br \/>\u76f8\u624b\u5148\u30b5\u30fc\u30d0\u304b\u3089\u300c550 Unknown User\u300d\u3068\u3044\u3063\u305f\u5fdc\u7b54\u304c\u8fd4\u308a\u307e\u3059\u3002SendGrid\u5074\u3067\u306fBounce\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u5fdc\u7b54\u3060\u3051\u3067\u306f\u3001\u5b58\u5728\u3057\u3066\u3044\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u306b\u9001\u4fe1\u3057\u305f\u5834\u5408\u3068\u533a\u5225\u304c\u3064\u304d\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u3053\u306e\u5fdc\u7b54\u304c\u8fd4\u308b\u3068\u30d0\u30a6\u30f3\u30b9\u30ea\u30b9\u30c8\u306b\u5165\u308a\u3001\u305d\u308c\u4ee5\u964d\u30c9\u30ed\u30c3\u30d7\u3055\u308c\u308b\u305f\u3081\u3001\u518d\u9001\u3059\u308b\u5834\u5408\u306f\u30d0\u30a6\u30f3\u30b9\u30ea\u30b9\u30c8\u304b\u3089\u8a72\u5f53\u30a2\u30c9\u30ec\u30b9\u3092\u524a\u9664\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h4>\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8<\/h4>\n<p>\u5b9f\u969b\u306b\u884c\u3063\u305f\u30c6\u30b9\u30c8\u7d50\u679c\u3092\u57fa\u306bSendGrid\u304b\u3089\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u30e1\u30fc\u30eb\u306b\u5c4a\u3051\u308b\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li><strong>\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u306e\u5229\u7528\u8a2d\u5b9a<\/strong><br \/>PC\u304b\u3089\u306e\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u3067\u304d\u308b\u72b6\u614b\u3067\u3042\u308c\u3070\u3001\u57fa\u672c\u7684\u306b<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/Tutorials\/D_Improve_Deliverability\/using_whitelabel.html\" rel=\"noopener\" target=\"_blank\">\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u5229\u7528\u8a2d\u5b9a<\/a>\u3092\u884c\u3046\u3053\u3068\u3067\u5c4a\u304d\u307e\u3059\u3002\u5408\u308f\u305b\u3066\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u306eMX\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068\u3067\u5230\u9054\u7387\u306f\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30e1\u30fc\u30eb\u306e\u30b3\u30f3\u30c6\u30f3\u30c4<\/strong><br \/>\u660e\u78ba\u306a\u57fa\u6e96\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u672c\u6587\u306e\u5185\u5bb9\u3082\u5230\u9054\u7387\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u5341\u5206\u306b\u30c6\u30b9\u30c8\u3092\u884c\u3044\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304f\u3053\u3068\u3092\u4e8b\u524d\u306b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<li><strong>\u53d7\u4fe1\u8005\u3078\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a3\u30eb\u30bf\u306e\u8a2d\u5b9a\u5909\u66f4\u3092\u4f9d\u983c<\/strong><br \/>\u300c\u62d2\u5426\u30ea\u30b9\u30c8\u300d\u3084\u3001\u300c\u30b1\u30fc\u30bf\u30a4\u30e1\u30fc\u30eb\u306e\u307f\u53d7\u4fe1\u300d\u306a\u3069\u306e\u8a2d\u5b9a\u306f\u3001\u9001\u4fe1\u5074\u306e\u8a2d\u5b9a\u3060\u3051\u3067\u306f\u56de\u907f\u3067\u304d\u307e\u305b\u3093\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u3001\u53d7\u4fe1\u8005\u306b\u8a2d\u5b9a\u306e\u7de9\u548c\u3092\u4f9d\u983c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u305f\u3044\u5834\u5408\u306f\u3001\u53d7\u4fe1\u8a31\u53ef\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u3082\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n<h4>\u3055\u3044\u3054\u306b<\/h4>\n<p>\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u5411\u3051\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306f\u8907\u96d1\u3067\u3059\u304c\u3001\u6b63\u3057\u304f\u5bfe\u7b56\u3092\u53d6\u308c\u3070\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3082\u3061\u308d\u3093\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=658#opt-in\" rel=\"noopener\" target=\"_blank\">\u30aa\u30d7\u30c8\u30a4\u30f3<\/a>\u3092\u3068\u308b\u3053\u3068\u3001\u914d\u4fe1\u505c\u6b62\u4f9d\u983c\u304a\u3088\u3073<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=17622\" rel=\"noopener\" target=\"_blank\">\u30d0\u30a6\u30f3\u30b9\u3078\u306e\u5bfe\u5fdc<\/a>\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=11941\" rel=\"noopener\" target=\"_blank\">\u5b9b\u5148\u30ea\u30b9\u30c8\u30af\u30ea\u30fc\u30cb\u30f3\u30b0<\/a>\u306a\u3069\u3001\u57fa\u672c\u7684\u306a\u30e1\u30fc\u30eb\u904b\u7528\u3082\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=2704\" rel=\"noopener\" target=\"_blank\">\u671b\u307e\u308c\u308b\u30e1\u30fc\u30eb<\/a>\u3092\u9001\u308b\u3088\u3046\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046\u3002\u300c<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=10875\" rel=\"noopener\" target=\"_blank\">\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u305f\u3081\u306e\u8a2d\u5b9a\u3000\uff5e\u306a\u308a\u3059\u307e\u3057\u898f\u5236\u7de8\uff5e<\/a>\u300d\u3082\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002<\/p>\n<h5>\u53c2\u8003\u30da\u30fc\u30b8<\/h5>\n<ul>\n<li>\u30c9\u30b3\u30e2\uff1a<a href=\"https:\/\/www.nttdocomo.co.jp\/info\/spam_mail\/\" rel=\"noopener\" target=\"_blank\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u3067\u304a\u56f0\u308a\u306e\u65b9\u3078<\/a><\/li>\n<li>au\uff1a<a href=\"https:\/\/www.au.com\/support\/service\/mobile\/trouble\/mail\/\" rel=\"noopener\" target=\"_blank\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56<\/a><\/li>\n<li>\u30bd\u30d5\u30c8\u30d0\u30f3\u30af\uff1a<a href=\"http:\/\/www.softbank.jp\/mobile\/support\/antispam\/\" rel=\"noopener\" target=\"_blank\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u306f<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b 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