{"id":14541,"date":"2023-10-19T11:20:47","date_gmt":"2023-10-19T02:20:47","guid":{"rendered":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14541"},"modified":"2026-03-12T17:57:52","modified_gmt":"2026-03-12T08:57:52","slug":"smtp%e3%81%ae%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e5%af%be%e7%ad%96%e3%83%a1%e3%83%bc%e3%83%ab%e3%82%a4%e3%83%b3%e3%83%95%e3%83%a9%e3%82%92%e4%bf%9d%e8%ad%b7%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14541","title":{"rendered":"SMTP\u8a8d\u8a3c\u306e\u91cd\u8981\u6027\u3068\u3001SendGrid\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/10\/20231019_blog.png\" alt=\"SMTP\u8a8d\u8a3c\u306e\u91cd\u8981\u6027\u3068\u3001SendGrid\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\" width=\"100%\" class=\"aligncenter size-full wp-image-16987\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/10\/20231019_blog.png 650w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/10\/20231019_blog-300x185.png 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<blockquote>\n<p>\u3053\u306e\u8a18\u4e8b\u306f <a href=\"https:\/\/sendgrid.com\/blog\/smtp-security-and-authentication\/\" target=\"_blank\">SMTP Authentication &#038; Security: How to Protect Your Email Program<\/a> \u306e\u6284\u8a33\u3067\u3059\u3002<\/p>\n<\/blockquote>\n<p>\u3082\u3057\u8d64\u306e\u4ed6\u4eba\u304c\u3042\u306a\u305f\u306b\u306a\u308a\u3059\u307e\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305f\u308a\u3001\u30e1\u30fc\u30eb\u30a4\u30f3\u30d5\u30e9\u306b\u30c0\u30e1\u30fc\u30b8\u3092\u4e0e\u3048\u305f\u308a\u3057\u305f\u3089\uff1f\u60f3\u50cf\u3059\u308b\u3060\u3051\u3067\u3082\u30be\u30c3\u3068\u3057\u307e\u305b\u3093\u304b\uff1f\u9069\u5207\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u884c\u308f\u306a\u3044\u3068\u3001\u30b9\u30d1\u30de\u30fc\u306b\u3088\u3063\u3066\u3053\u308c\u3089\u306f\u73fe\u5b9f\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=11638\" rel=\"noopener\" target=\"_blank\">SMTP<\/a>\uff08Simple Mail Transfer Protocol\uff09\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002SMTP\u306f\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u65b9\u6cd5\u3067\u3042\u308a\u3001\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304b\u3089Twilio SendGrid\u306e\u3088\u3046\u306a\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u306b\u79fb\u884c\u3057\u305f\u5834\u5408\u3067\u3042\u3063\u3066\u3082\u4f7f\u308f\u308c\u7d9a\u3051\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u30b9\u30d1\u30de\u30fc\u306f\u901a\u5e38\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f31\u3044\u30b5\u30fc\u30d0\u3092\u898b\u3064\u3051\u3066\u306f\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4e57\u3063\u53d6\u308b\u3053\u3068\u3092\u7e70\u308a\u8fd4\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u5e38\u306b\u9ad8\u3044\u30ec\u30d9\u30eb\u306b\u3057\u3066\u304a\u304b\u306d\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u30e1\u30fc\u30eb\u3092\u30bb\u30ad\u30e5\u30a2\u306b\u9001\u4fe1\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u9001\u4fe1\u8005\u3068\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u53cc\u65b9\u304c\u5bfe\u7b56\u3092\u53d6\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u5229\u7528\u3055\u308c\u308b\u306e\u304cSMTP\u8a8d\u8a3c\u3067\u3059\u3002<\/p>\n<p>SMTP\u8a8d\u8a3c\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u304c\u63d0\u4f9b\u3059\u308b\u62e1\u5f35\u6a5f\u80fd\u3092\u6d3b\u7528\u3067\u304d\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30e1\u30fc\u30eb\u30a4\u30f3\u30d5\u30e9\u3084\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u4e0d\u6b63\u5229\u7528\u304b\u3089\u4fdd\u8b77\u3059\u308b\u70b9\u3067\u3082\u5f79\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>SMTP\u8a8d\u8a3c\u3068\u306f\u4f55\u304b\u3001\u306a\u305c\u91cd\u8981\u306a\u306e\u304b\u3001\u305d\u3057\u3066Twilio SendGrid\u304cSMTP\u30ea\u30ec\u30fc\u3092\u5b89\u5168\u306b\u4fdd\u3064\u305f\u3081\u306b\u3069\u306e\u3088\u3046\u306a\u5bfe\u7b56\u3092\u3068\u3063\u3066\u3044\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>SMTP\u8a8d\u8a3c\u3068\u306f\uff1f<\/h3>\n<p>SMTP\u8a8d\u8a3c\u3068\u306f\u3001SMTP\u30b5\u30fc\u30d0\u3078\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u4f9d\u983c\u3059\u308b\u969b\u306b\u8a8d\u8a3c\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30bb\u30ad\u30e5\u30a2\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u4e00\u822c\u7684\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306fSMTP\u30ea\u30ec\u30fc\u306e\u6a5f\u80fd\u3092\u6301\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u8a8d\u8a3c\u60c5\u5831\u3092\u66f8\u304d\u63db\u3048\u308b\u3060\u3051\u3067\u4ed6\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>Twilio SendGrid\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u304a\u3051\u308bSMTP\u8a8d\u8a3c<\/h4>\n<p>SendGrid\u3067SMTP\u9001\u4fe1\u3092\u884c\u3046\u306b\u306f\u3001<a href=\"https:\/\/support.sendgrid.kke.co.jp\/hc\/ja\/articles\/204187885\" rel=\"noopener\" target=\"_blank\">API\u30ad\u30fc\u306b\u3088\u308b\u8a8d\u8a3c<\/a>\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u89aa\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u30b5\u30d6\u30e6\u30fc\u30b6\u306f\u305d\u308c\u305e\u308c\u56fa\u6709\u306eAPI\u30ad\u30fc\u3067\u8a8d\u8a3c\u3092\u884c\u3046\u305f\u3081\u3001SendGrid\u30b5\u30fc\u30d0\u306f\u3001\u3069\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3089\u306e\u9001\u4fe1\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3042\u308b\u304b\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30e1\u30fc\u30eb\u7528\u3068\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u7528\u3001\u3042\u308b\u3044\u306f\u672c\u756a\u74b0\u5883\u7528\u3068\u958b\u767a\u74b0\u5883\u7528\u306a\u3069\u7528\u9014\u306b\u5fdc\u3058\u3066\u30b5\u30d6\u30e6\u30fc\u30b6\u3092\u5206\u3051\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u95a2\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u60c5\u5831\u3084\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u5206\u3051\u3066\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>SendGrid\u306eSMTP\u3067\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/API_Reference\/SMTP_API\/getting_started_smtp.html\" rel=\"noopener\" target=\"_blank\">\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u3082\u3057STMP\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u304c\u306a\u304b\u3063\u305f\u3089\uff1f<\/h3>\n<p>SMTP\u8a8d\u8a3c\u304c\u306a\u3044\u3068\u3001\u9001\u4fe1\u4f9d\u983c\u3092\u53d7\u3051\u308b\u30b5\u30fc\u30d0\u306f\u3001\u6b63\u5f53\u306a\u9001\u4fe1\u8005\u306b\u3088\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u306a\u306e\u304b\u3001\u3042\u308b\u3044\u306f\u30b9\u30d1\u30de\u30fc\u3084\u60aa\u8cea\u696d\u8005\u306b\u3088\u308b\u3082\u306e\u306a\u306e\u304b\u3092\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u60aa\u8cea\u306a\u30e1\u30fc\u30eb\u3082\u901a\u904e\u3055\u305b\u3066\u3057\u307e\u3044\u3001\u53d7\u4fe1\u8005\u304c\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u306a\u3069\u306e\u88ab\u5bb3\u3092\u53d7\u3051\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u3068\u306f\u3001\u60aa\u610f\u306e\u3042\u308b\u4eba\u7269\u304c\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u3092\u507d\u88c5\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p class=\"emphasis\">SMTP\u8a8d\u8a3c\u304c\u306a\u3044\u3068\u3001\u30b9\u30d1\u30de\u30fc\u3084\u60aa\u8cea\u306a\u696d\u8005\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<h3>Twilio SendGrid\u306f\u3069\u306e\u3088\u3046\u306bSMTP\u3092\u30bb\u30ad\u30e5\u30a2\u306b\u4fdd\u3063\u3066\u3044\u308b\u306e\u304b\uff1f<\/h3>\n<p>\u4fe1\u983c\u3067\u304d\u308b\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u30c1\u30e3\u30cd\u30eb\u3068\u3057\u3066\u30e1\u30fc\u30eb\u3092\u5229\u7528\u3057\u7d9a\u3051\u3089\u308c\u308b\u3088\u3046\u3001SendGrid\u306f\u30bb\u30ad\u30e5\u30a2\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u65b9\u6cd5\u306e\u63d0\u4f9b\u306b\u52aa\u3081\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u305d\u306e\u305f\u3081\u306e\u53d6\u308a\u7d44\u307f\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h4>Secure SMTP<\/h4>\n<p>SendGrid\u306fSMTPS\uff08TLS\u3092\u4f7f\u7528\u3057\u305fSMTP\uff09\u306b\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u30dd\u30fc\u30c8\u756a\u53f725\u3001587\u30012525\u3067TLS\u63a5\u7d9a\u3092\u53d7\u3051\u4ed8\u3051\u307e\u3059\u3002SSL\u306b\u3088\u308b\u63a5\u7d9a\u3082\u53ef\u80fd\u3067\u3059\uff08\u30dd\u30fc\u30c8\u756a\u53f7465\uff09\u3002<\/p>\n<p>\u5404\u30dd\u30fc\u30c8\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=12945\" rel=\"noopener\" target=\"_blank\">\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>Domain Authentication<\/h4>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/Tutorials\/D_Improve_Deliverability\/using_whitelabel.html#-Domain-Whitelabel\" rel=\"noopener\" target=\"_blank\">Domain Authentication<\/a>\u306f\u3001SendGrid\u304b\u3089\u9001\u308a\u51fa\u3055\u308c\u308b\u30e1\u30fc\u30eb\u306e\u300c\u9001\u4fe1\u8005\u304c\u8ab0\u3067\u3042\u308b\u304b\u3092\u8a3c\u660e\u3059\u308b\u300d\u305f\u3081\u306e\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n<p>SendGrid\u306f\u9001\u4fe1\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u9001\u4fe1\u8005\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u306e\u7d10\u4ed8\u3051\u3092\u884c\u3044\u3001Domain Authentication\u3067\u8a2d\u5b9a\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u3067<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3509\" rel=\"noopener\" target=\"_blank\">Sender Policy Framework\uff08SPF\uff09<\/a>\u3068<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=2044\" rel=\"noopener\" target=\"_blank\">Domain Key Identified Mail\uff08DKIM\uff09<\/a>\u306e\u7f72\u540d\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>SPF\u306f\u3001\u3042\u308b\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u5229\u7528\u3055\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u306e\u30ea\u30b9\u30c8\u3092DNS\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u767b\u9332\u3057\u3066\u304a\u304d\u3001\u305d\u308c\u3092\u53d7\u4fe1\u30b5\u30fc\u30d0\u304c\u53c2\u7167\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u304c\u6b63\u5f53\u306a\u3082\u306e\u3067\u3042\u308b\u304b\u3092\u5224\u65ad\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u4e00\u65b9\u3001DKIM\u306f\u3001\u9001\u4fe1\u3059\u308b\u30e1\u30fc\u30eb\u306b\u7f72\u540d\u3092\u4ed8\u4e0e\u3059\u308b\u6697\u53f7\u5316\u6280\u8853\u3067\u3001\u30e1\u30fc\u30eb\u304c\u6b63\u5f53\u306a\u9001\u4fe1\u8005\u304b\u3089\u9001\u3089\u308c\u305f\u3082\u306e\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>Domain Authentication\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u304c\u30b9\u30d1\u30e0\u5224\u5b9a\u3055\u308c\u308b\u30ea\u30b9\u30af\u3092\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>\u4e8c\u8981\u7d20\u8a8d\u8a3c<\/h4>\n<p>2020\u5e74\u3088\u308a\u3001SendGrid\u306f\u5168\u3066\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u5bfe\u3057\u3066\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u5fc5\u9808\u5316\u3057\u307e\u3057\u305f\u3002\u305d\u308c\u306b\u4f34\u3044\u3001\u5168\u3066\u306eSMTP\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u304a\u3044\u3066\u3001Basic\u8a8d\u8a3c\uff08\u30e6\u30fc\u30b6\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u3088\u308b\u8a8d\u8a3c\uff09\u3067\u306f\u306a\u304f\u3001API\u30ad\u30fc\u8a8d\u8a3c\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>API\u30ad\u30fc\u8a8d\u8a3c\u306f\u3001\u8a8d\u8a3c\u60c5\u5831\u306e\u6587\u5b57\u5217\u304c\u9577\u304f\u306a\u308b\u3053\u3068\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u9ad8\u307e\u308b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306e\u5236\u5fa1\u3084\u524a\u9664\u304c\u5bb9\u6613\u306b\u3067\u304d\u308b\u305f\u3081\u3001Basic\u8a8d\u8a3c\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u5b89\u5168\u3067\u3059\u3002<\/p>\n<h4>IP Access Management<\/h4>\n<p>IP Access Management\u306f\u3001\u63a5\u7d9a\u5143IP\u30a2\u30c9\u30ec\u30b9\u306b\u57fa\u3065\u3044\u3066\u30a2\u30ab\u30a6\u30f3\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u5236\u9650\u3067\u304d\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3067\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306e\u8a73\u7d30\u306f<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/User_Manual_JP\/Settings\/ip_access_management.html\" rel=\"noopener\" target=\"_blank\">\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>SMTP\u30b5\u30fc\u30d0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/h3>\n<p>\u30bb\u30ad\u30e5\u30a2\u306aSMTP\u30b5\u30fc\u30d0\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u30e1\u30fc\u30eb\u30a4\u30f3\u30d5\u30e9\u3092\u30b9\u30d1\u30de\u30fc\u3084\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u653b\u6483\u304b\u3089\u78ba\u5b9f\u306b\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002SMTP\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u3092\u9078\u3076\u969b\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u67d4\u8edf\u6027\u3001\u5c0e\u5165\u306e\u3057\u3084\u3059\u3055\u306b\u6ce8\u76ee\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u305c\u3072<a href=\"https:\/\/sendgrid.kke.co.jp\/app?p=signup.index&#038;utm_source=sg&#038;utm_medium=web&#038;utm_campaign=blog\" rel=\"noopener\" target=\"_blank\">\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u53d6\u5f97<\/a>\u3057\u3066\u3001SendGrid\u306eSMTP\u3092\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>SMTP\u3084\u8a8d\u8a3c\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u3082\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=11638\" rel=\"noopener\" target=\"_blank\">SMTP\u30b5\u30fc\u30d0\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=636\" rel=\"noopener\" target=\"_blank\">SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u5165\u9580<\/a><\/li>\n<li><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=879\" rel=\"noopener\" target=\"_blank\">\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u305f\u3081\u306e5\u30b9\u30c6\u30c3\u30d7<\/a><\/li>\n<li><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14512\" rel=\"noopener\" target=\"_blank\">SMTP\u306e\u306f\u3058\u3081\u304b\u305f\uff08\u81ea\u4f5c VS. \u30b5\u30fc\u30d3\u30b9\u5229\u7528\uff09<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306f SMTP Authentication &#038; Security: How to Protect Your Email Program \u306e\u6284\u8a33\u3067\u3059\u3002 \u3082\u3057\u8d64\u306e\u4ed6\u4eba\u304c\u3042\u306a\u305f\u306b\u306a\u308a\u3059\u307e\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305f\u308a <a class=\"read-more\" href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14541\">&#8230;\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":16987,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9,11],"tags":[],"class_list":["post-14541","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-best-practices","category-technical"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14541"}],"version-history":[{"count":8,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14541\/revisions"}],"predecessor-version":[{"id":20283,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14541\/revisions\/20283"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/16987"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}