{"id":11638,"date":"2023-07-13T11:30:25","date_gmt":"2023-07-13T02:30:25","guid":{"rendered":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=11638"},"modified":"2026-03-12T13:39:10","modified_gmt":"2026-03-12T04:39:10","slug":"smtp%e3%82%b5%e3%83%bc%e3%83%90%e3%81%a8%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=11638","title":{"rendered":"SMTP\u30b5\u30fc\u30d0\u3068\u306f\uff1f"},"content":{"rendered":"

\"SMTP\u30b5\u30fc\u30d0\u3068\u306f\uff1f\"<\/p>\n

\n

\u3053\u306e\u8a18\u4e8b\u306f SMTP: Servers and Sending Emails<\/a> \u306e\u6284\u8a33\u3067\u3059\u3002<\/p>\n<\/blockquote>\n

\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u30e1\u30fc\u30eb\u306f\u5927\u304d\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30e1\u30fc\u30eb\u304c\u3069\u306e\u3088\u3046\u306b\u9001\u4fe1\u3055\u308c\u3066\u3044\u308b\u304b\u3054\u5b58\u3058\u3067\u3059\u304b\uff1f<\/p>\n

\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u30d7\u30ed\u30bb\u30b9\u306f\u7269\u7406\u7684\u306a\u624b\u7d19\u306e\u90f5\u9001\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u4e00\u9023\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u7d4c\u3066\u3001\u7d44\u7e54\u5316\u3055\u308c\u305f\u30b7\u30b9\u30c6\u30e0\u304c\u5c01\u7b52\u3092\u53d7\u3051\u53d6\u308a\u3001\u5b9b\u5148\u306b\u5c4a\u3051\u307e\u3059\u3002\u30e1\u30fc\u30eb\u306b\u304a\u3044\u3066\u306fSMTP\u30b5\u30fc\u30d0\u304c\u90f5\u4fbf\u914d\u9054\u54e1\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u304c\u3001SMTP\u30b5\u30fc\u30d0\u306e\u5f79\u5272\u306f\u305d\u308c\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

SMTP\u30b5\u30fc\u30d0\u306f\u8907\u96d1\u3067\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u4e16\u754c\u306b\u8db3\u3092\u8e0f\u307f\u5165\u308c\u305f\u4eba\u306e\u591a\u304f\u306f\u5727\u5012\u3055\u308c\u3066\u3057\u307e\u3046\u3067\u3057\u3087\u3046\u3002\u305d\u3053\u3067\u4eca\u56de\u306f\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\uff08SMTP\u30b5\u30fc\u30d0\u3092\u4f7f\u3063\u305f\u30e1\u30fc\u30eb\u9001\u4fe1\uff09\u306b\u95a2\u3059\u308b\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u3001SMTP\u30b5\u30fc\u30d0\u306b\u95a2\u3057\u3066\u3088\u304f\u805e\u304b\u308c\u308b\u8cea\u554f\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u3053\u308c\u3092\u8aad\u3081\u3070\u3042\u306a\u305f\u3082SMTP\u306e\u30a8\u30ad\u30b9\u30d1\u30fc\u30c8\u306b\u306a\u308c\u307e\u3059\u3088\u3002<\/p>\n

SMTP\u3068\u306f\uff1f<\/h3>\n

SMTP\u306fSimple Mail Transfer Protocol\u306e\u7565\u3067\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304c\u9001\u4fe1\u5143\u3068\u5b9b\u5148\u306e\u9593\u3067\u30e1\u30fc\u30eb\u306e\u9001\u53d7\u4fe1\u3084\u4e2d\u7d99\u3092\u884c\u3046\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n

SMTP\u306f\u30e1\u30fc\u30eb\u901a\u4fe1\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3092\u88cf\u304b\u3089\u6280\u8853\u7684\u306b\u652f\u3048\u3066\u3044\u308b\u3082\u306e\u3067\u3001\u30e1\u30fc\u30eb\u306e\u9001\u53d7\u4fe1\u3092\u53ef\u80fd\u306b\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u914d\u9001\u5148\u3092\u6c7a\u5b9a\u3059\u308b\u306e\u3082SMTP\u3067\u3042\u308b\u305f\u3081\u3001SMTP\u304c\u306a\u3051\u308c\u3070\u30e1\u30fc\u30eb\u901a\u4fe1\u306f\u6210\u7acb\u3057\u307e\u305b\u3093\u3002<\/p>\n

\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u3068\u306f\u4f55\u304b\uff1fSMTP\u30b5\u30fc\u30d0\u3068\u306f\uff1f<\/h4>\n

\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u3068\u306f\u3001\u30e1\u30fc\u30eb\u3092\u53ce\u96c6\u30fb\u51e6\u7406\u30fb\u914d\u4fe1\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u8868\u3059\u4e00\u822c\u7528\u8a9e\u3067\u3059\u3002\u30e1\u30fc\u30eb\u306e\u904b\u3073\u4eba\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u306f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u3092\u7d4c\u7531\u3057\u3066\u5b9b\u5148\u307e\u3067\u5c4a\u3051\u3089\u308c\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304c\u306a\u3051\u308c\u3070\u3001\u540c\u4e00\u30c9\u30e1\u30a4\u30f3\u5185\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u3057\u304b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\uff08\u4f8b\u3048\u3070\u3001gmail.com \u304b\u3089 gmail.com \u306a\u3069\uff09\u3002 <\/p>\n

\u9001\u4fe1\u7528\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u3067\u3042\u308bSMTP\u30b5\u30fc\u30d0\u306f\u300c\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u6301\u3063\u3066\u3044\u3066\u3001\u3053\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30a2\u30c9\u30ec\u30b9\u306f\u4e00\u822c\u7684\u306b smtp.serveraddress.com \u306e\u3088\u3046\u306a\u5f62\u5f0f\u3092\u3057\u3066\u3044\u3066\u3001Gmail\u306eSMTP\u30b5\u30fc\u30d0\u306a\u3089 smtp.gmail.com\u3001Twilio SendGrid\u306a\u3089 smtp.sendgrid.com \u3067\u3059\u3002\u3053\u308c\u306f\u901a\u5e38\u3001\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u300c\u30a2\u30ab\u30a6\u30f3\u30c8\u300d\u3084\u300c\u8a2d\u5b9a\u300d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

SMTP\u30b5\u30fc\u30d0\u306f\u30e1\u30fc\u30eb\u8ee2\u9001\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\uff08MTA\uff09\u3068\u9023\u643a\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ecb\u3057\u3066\u30e1\u30fc\u30eb\u3092\u76ee\u7684\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\u3078\u3068\u904b\u3073\u307e\u3059\u3002<\/p>\n

\u3064\u307e\u308a\u3001\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u6307\u5b9a\u3057\u305fSMTP\u30db\u30b9\u30c8\uff08smtp.gmail.com\u306a\u3069\uff09\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u3069\u306e\u30b5\u30fc\u30d0\u306b\u5c4a\u3051\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u3001\u76ee\u7684\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u307e\u3067\u4e2d\u7d99\uff08\u30ea\u30ec\u30fc\uff09\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u53d7\u4fe1\u5074\u306e\u30a4\u30f3\u30dc\u30c3\u30af\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\uff08Gmail\u3084AOL\u306a\u3069\uff09\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u5b9b\u5148\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u683c\u7d0d\u3059\u308b\u306e\u3067\u3059\u3002<\/p>\n

\u4e00\u822c\u7684\u306aSMTP\u30b5\u30fc\u30d0\u3068\u8a2d\u5b9a<\/h4>\n\n\n\n\n\n\n
SMTP\u30d7\u30ed\u30d0\u30a4\u30c0<\/th>\nURL<\/th>\nSMTP\u306e\u8a2d\u5b9a\u5024<\/th>\n<\/tr>\n
iCloud<\/td>\nicloud.com\/mail<\/td>\nsmtp.mail.me.com<\/td>\n<\/tr>\n
Gmail<\/td>\ngmail.com<\/td>\nsmtp.gmail.com<\/td>\n<\/tr>\n
Outlook<\/td>\noutlook.com<\/td>\nsmtp-mail.outlook.com<\/td>\n<\/tr>\n
Yahoo! JAPAN<\/td>\nmail.yahoo.co.jp<\/td>\nsmtp.mail.yahoo.co.jp<\/td>\n<\/tr>\n<\/table>\n

SMTP\u30b5\u30fc\u30d0\u3068\u666e\u901a\u306e\u30b5\u30fc\u30d0\u3068\u306e\u9055\u3044<\/h4>\n

\u591a\u304f\u306e\u30b5\u30fc\u30d0\u3068\u540c\u69d8\u3001SMTP\u30b5\u30fc\u30d0\u3082\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3057\u4ed6\u306e\u30b5\u30fc\u30d0\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u3068\u4e2d\u7d99\u306b\u7279\u5316\u3057\u3066\u3044\u308b\u70b9\u304c\u4ed6\u306e\u30b5\u30fc\u30d0\u3068\u306e\u9055\u3044\u3067\u3059\u3002\u307e\u305f\u3001\u5fc5\u305a\u3057\u3082\u30de\u30b7\u30f3\u4e0a\u306b\u5b9f\u4f53\u304c\u3042\u308b\u8a33\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u3044\u3064\u3067\u3082\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3067\u304d\u308b\u3088\u3046\u5e38\u6642\u8d77\u52d5\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

SMTP\u30b5\u30fc\u30d0\u304c\u91cd\u8981\u3067\u3042\u308b\u7406\u7531<\/h3>\n

\u30e1\u30fc\u30eb\u901a\u4fe1\u306b\u304a\u3044\u3066\u306f\u3001\u5b9b\u5148\u307e\u3067\u9045\u5ef6\u306a\u304f\u5b89\u5168\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5c4a\u3051\u308b\u3053\u3068\u304c\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u3057\u304b\u3057\u3001SMTP\u30b5\u30fc\u30d0\u304c\u306a\u3051\u308c\u3070\u30e1\u30fc\u30eb\u304c\u5b9b\u5148\u306b\u5c4a\u304f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

\u201c\u9001\u4fe1<\/strong>\u201d\u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3068\u30e1\u30fc\u30eb\u306f\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3055\u308c\u3001SMTP\u30b5\u30fc\u30d0\u304c\u305d\u306e\u30b3\u30fc\u30c9\u3092\u51e6\u7406\u3057\u3066\u8ee2\u9001\u3057\u307e\u3059\u3002SMTP\u30b5\u30fc\u30d0\u304c\u51e6\u7406\u3057\u306a\u3051\u308c\u3070\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u8ee2\u9001\u3055\u308c\u306a\u3044\u306e\u3067\u3059\u3002<\/p>\n

\u307e\u305f\u3001SMTP\u30b5\u30fc\u30d0\u306f\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u304c\u6709\u52b9\u306a\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u6b63\u306a\u30e1\u30fc\u30eb\u304b\u3089\u53d7\u4fe1\u30c8\u30ec\u30a4\u3092\u4fdd\u8b77\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30e1\u30fc\u30eb\u3092\u5b9b\u5148\u307e\u3067\u5c4a\u3051\u3089\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u3001SMTP\u30b5\u30fc\u30d0\u306f\u305d\u306e\u30e1\u30fc\u30eb\u3092\u5fc5\u305a\u9001\u4fe1\u5143\u306b\u5dee\u3057\u623b\u3057\u3001\u300c\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u8aa4\u308a\u304c\u3042\u3063\u305f\u300d\u300c\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304c\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u30e1\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3057\u305f\u300d\u3068\u3044\u3063\u305f\u3053\u3068\u3092\u77e5\u3089\u305b\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n

SMTP\u306b\u3064\u3044\u3066\u3082\u3063\u3068\u77e5\u308a\u305f\u3044\u65b9\u306f\u30013\u5206\u3067\u308f\u304b\u308b\uff01SMTP\u30b5\u30fc\u30d3\u30b9\u8b1b\u5ea7<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n

SendGrid\u306eSMTP\u30b5\u30fc\u30d0\u306e\u4ed5\u7d44\u307f<\/h3>\n

SendGrid\u3067\u30e1\u30fc\u30eb\u9001\u4fe1\u3057\u305f\u3068\u304d\u306e\u51e6\u7406\u306e\u6d41\u308c\u306f\uff1f<\/h4>\n
    \n
  1. \u9001\u4fe1\u5143\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089SendGrid\u306eSMTP\u30b5\u30fc\u30d0\uff08smtp.sendgrid.net\u3001\u30dd\u30fc\u30c8\uff1a25\uff09\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/li>\n
  2. \u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068SendGrid\u30b5\u30fc\u30d0\u9593\u3067\u901a\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u8a8d\u8a3c\u306b\u4f7f\u308f\u308c\u305f\u30e6\u30fc\u30b6\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6709\u52b9\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u3001\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5185\u5bb9\u7b49\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/li>\n
  3. \u6b21\u306b\u3001SendGrid\u30b5\u30fc\u30d0\u306f\u5b9b\u5148\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u306b\u5bfe\u3057\u901a\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002<\/li>\n
  4. \u5b9b\u5148\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u306f\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u3001\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u3001\u304a\u3088\u3073\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u9001\u4fe1\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001DKIM (DomainKeys Identified Mail) <\/a>\u3084 SPF (Sender Policy Framework) <\/a>\u306e\u8a2d\u5b9a\u306b\u554f\u984c\u304c\u306a\u3051\u308c\u3070\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002
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