{"id":4115,"date":"2015-09-15T13:09:31","date_gmt":"2015-09-15T04:09:31","guid":{"rendered":"https:\/\/ec2-54-238-200-5.ap-northeast-1.compute.amazonaws.com\/blog\/?p=4115"},"modified":"2019-03-27T17:41:42","modified_gmt":"2019-03-27T08:41:42","slug":"smtp%e3%81%a8%e3%83%a1%e3%83%bc%e3%83%ab","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=4115","title":{"rendered":"SMTP\u3068\u30e1\u30fc\u30eb"},"content":{"rendered":"<p style=\"margin-bottom:0;\"><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2015\/09\/31829184_s.png\" alt=\"SMTP\u3068\u30e1\u30fc\u30eb\" class=\"alignnone size-full wp-image-4116\" width=\"100%\" style=\"margin:0;\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2015\/09\/31829184_s.png 450w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2015\/09\/31829184_s-300x185.png 300w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/p>\n<blockquote>\n<p>\u3053\u306e\u8a18\u4e8b\u306f <a href=\"https:\/\/sendgrid.com\/blog\/smtp-evolution-email\/\" target=\"_blank\">SMTP and the Evolution of Email<\/a> \u306e\u6284\u8a33\u3067\u3059\u3002<\/p>\n<\/blockquote>\n<h4><strong>SMTP\u3068\u306f<\/strong><\/h4>\n<p><strong>S<\/strong>imple <strong>M<\/strong>ail <strong>T<\/strong>ransfer <strong>P<\/strong>rotocol\uff08\u7c21\u6613\u30e1\u30fc\u30eb\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb\uff09\u3068\u3044\u3046\u540d\u524d\u306e\u901a\u308a\u3001SMTP\u306f\u7c21\u6613\u306a\u30c6\u30ad\u30b9\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30c7\u30d0\u30a4\u30b9\u9593\u3067\u8ee2\u9001\u3059\u308b\u305f\u3081\u306e\u3001\u624b\u8efd\u3067\u30b7\u30f3\u30d7\u30eb\u306a\u624b\u6bb5\u3068\u3057\u3066\u4f5c\u3089\u308c\u307e\u3057\u305f\u3002\u6700\u521d\u306eSMTP\u306e\u898f\u683c\u3067\u306f\u3001\u3044\u308f\u3086\u308b\u300c\u30b5\u30fc\u30d0\u300d\u306b\u3042\u305f\u308b<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3018\" target=\"_blank\">MTA<\/a>(Mail Transport Agent)\u3068\u3001\u300c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u300d\u306b\u3042\u305f\u308bMUA\u3092\u533a\u5225\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p><!--more--><\/p>\n<p>SMTP\u306f2\u3064\u306eMTA\u9593\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u306a\u306e\u3067\u3001\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4fdd\u5b58\u300d\u300c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u30e1\u30c3\u30bb\u30fc\u30b8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u300d\u300c\u97f3\u58f0\u3084\u753b\u50cf\u306a\u3069\u8907\u96d1\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u9001\u4fe1\u300d\u3068\u3044\u3063\u305f\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u3088\u3046\u306b\u306f\u3067\u304d\u3066\u3044\u307e\u305b\u3093\u3002\u5358\u306b\u3001\u53b3\u5bc6\u306b\u69cb\u9020\u5316\u3055\u308c\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u3092A\u304b\u3089B\u3078\u79fb\u52d5\u3055\u305b\u308b\u305f\u3081\u306e\u30eb\u30fc\u30eb\u3067\u3059\u3002<\/p>\n<div style=\"clear:both;width:auto;height:40px;\"><!----><\/div>\n<h4><strong>\u521d\u671f\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3068SMTP<\/strong><\/h4>\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u3001\u6559\u80b2\u6a5f\u95a2\u3084\u653f\u5e9c\u306e\u305f\u3081\u306e\u30af\u30ed\u30fc\u30ba\u30c9\u306a\u7814\u7a76\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u201cARPANET\uff08\u30a2\u30fc\u30d1\u30cd\u30c3\u30c8\uff09\u201d \u3092\u5143\u306b\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306eARPANET\u3084\u521d\u671f\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u4eca\u3068\u306f\u9055\u3044\u3001\u300c\u9650\u3089\u308c\u305f\u6570\u306e\u4fe1\u983c\u3055\u308c\u305f\u30e6\u30fc\u30b6\u306e\u307f\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u300d\u300c\u5546\u7528\u5229\u7528\u306f\u8a31\u53ef\u3057\u306a\u3044\u300d\u3068\u3044\u3046\u524d\u63d0\u306e\u3082\u3068\u3067\u4f5c\u3089\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\nSMTP\u306e\u6700\u521d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3082\u3001\u3053\u306e\u3088\u3046\u306a\u74b0\u5883\u3092\u60f3\u5b9a\u3057\u3066\u8a2d\u8a08\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u306e\u5f8c\u3001\u5546\u7528\u5229\u7528\u306b\u3082\u4f7f\u3048\u308b\u3001\u3088\u308a\u5b89\u5b9a\u3057\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u3057\u3066X.400\u304c\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002SMTP\u306e\u7af6\u5408\u306b\u3042\u305f\u308bX.400\u306b\u306f\u3001\u4fe1\u983c\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u305f\u914d\u4fe1\u3001\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3001\u305d\u306e\u4ed6\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304a\u3088\u3073\u8a8d\u8a3c\u306e\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u5b9f\u88c5\u304c\u8907\u96d1\u3067\u3057\u305f\u3002\u3053\u306e\u9803\u306e\u30d9\u30f3\u30c0\u30fc\u306f\u6700\u7d42\u7684\u306b\u3001\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u5b89\u4fa1\u306aSMTP\u306e\u65b9\u3092\u9078\u629e\u3057\u307e\u3057\u305f\u3002<\/p>\n<p style=\"margin-bottom:1em;\">\u73fe\u5728\u306eSMTP\u306b\u3082\u3001\u305d\u306e\u8d77\u6e90\u306e\u540d\u6b8b\u304c\u898b\u3066\u3068\u308c\u307e\u3059\u3002<\/p>\n<ul style=\"background-image:none;list-style-type:disc;margin-left:20px;\">\n<li style=\"background-image:none;margin-bottom:1em;\">\u4fe1\u983c\u3067\u304d\u308b\u30e6\u30fc\u30b6\u306e\u307f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u305d\u308c\u307b\u3069\u91cd\u8981\u3067\u306f\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u8a8d\u8a3c\u3084\u6697\u53f7\u5316\u306e\u4ed5\u7d44\u307f\u304c\u3042\u308a\u307e\u305b\u3093\u3002\uff08\u203b\u5f8c\u306b\u6a5f\u80fd\u304c\u62e1\u5f35\u3055\u308c\u307e\u3057\u305f\uff09<\/li>\n<li style=\"background-image:none;margin-bottom:1em;\">\u9001\u53d7\u4fe1\u306b\u95a2\u3059\u308b\u901a\u77e5\u306e\u6709\u7121\u306f\u3001\u53d7\u4fe1\u5074\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u6052\u4e45\u7684\u306b\u5c4a\u304b\u306a\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u3064\u3044\u3066\u306f\u3001\u914d\u4fe1\u72b6\u6cc1\u306b\u95a2\u3059\u308b\u901a\u77e5\uff08DSN\uff09\u3068\u3057\u3066\u78ba\u5b9f\u306b\u8fd4\u3055\u308c\u307e\u3059\u3002<\/li>\n<li style=\"background-image:none;margin-bottom:1em;\">\u4f8b\u3048\u3070\u3001FedEx\u3084UPS\u306e\u3088\u3046\u306a\u5b85\u914d\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u652f\u6255\u3046\u91d1\u984d\u6b21\u7b2c\u3067\u914d\u9054\u306b\u304b\u304b\u308b\u65e5\u6570\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u304c\u3001SMTP\u306b\u306f\u305d\u306e\u3088\u3046\u306a\u6307\u5b9a\u304c\u3067\u304d\u308b\u4ed5\u7d44\u307f\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<li style=\"background-image:none;margin-bottom:1em;\">\u3069\u3046\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u308b\u306e\u304b\u304c\u4e0d\u660e\u77ad\u3067\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3084\u30b5\u30fc\u30d0\u3001\u3082\u3057\u304f\u306f\u30af\u30e9\u30a6\u30c9\u4e0a\u306e\u3069\u3053\u304b\u306b\u3042\u308b\u30b9\u30d1\u30e0\u30d5\u30a3\u30eb\u30bf\u306b\u3088\u3063\u3066\u3001\u91cd\u8981\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u52dd\u624b\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\uff08\u307e\u305f\u3001\u4eca\u3067\u306fGmail\u306e\u30bf\u30d6\u6a5f\u80fd\u306e\u3088\u3046\u306b\u3001\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u5185\u3067\u3082\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff09<\/li>\n<li style=\"background-image:none;margin-bottom:1em;\">SMTP\uff08\u3082\u3057\u304f\u306f\u30e1\u30fc\u30eb\u5168\u822c\uff09\u306b\u304a\u3044\u3066\u3001\u958b\u5c01\u3084\u30af\u30ea\u30c3\u30af\u3092\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u5927\u62b5\u306fWeb\u30d9\u30fc\u30b9\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\uff08\u4f8b\uff1a\u753b\u50cf\u3084\u30a2\u30f3\u30ab\u30fc\u30bf\u30b0\u306a\u3069\uff09\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<div style=\"clear:both;width:auto;height:40px;\"><!----><\/div>\n<h4><strong>\u30e1\u30fc\u30eb\u306e\u9032\u5316<\/strong><\/h4>\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u666e\u53ca\u3059\u308b\u306b\u3064\u308c\u3066\u30d3\u30b8\u30cd\u30b9\u3067\u3082\u30e1\u30fc\u30eb\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u5546\u7528\u5229\u7528\u306b\u3088\u308b\u30a2\u30af\u30bb\u30b9\u7981\u6b62\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3044\u304f\u3064\u304b\u306e\u5927\u4f01\u696d\uff08\u7279\u306bIBM\u3001DEC\u3001Control Data\uff09\u306f\u5171\u540c\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u305d\u306e\u3046\u3061\u3001\u4e2d\u5c0f\u4f01\u696d\uff08Novell\u3001Lotus\u3001Microsoft\u306a\u3069\uff09\u304c\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u30d3\u30b8\u30cd\u30b9\u7684\u4fa1\u5024\u306b\u6c17\u3065\u304d\u3001\u30e1\u30fc\u30eb\u3092\u542b\u3080\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u306e\u69cb\u7bc9\u3092\u59cb\u3081\u307e\u3057\u305f\u3002SMTP\u306e\u898f\u683c\u304c\u3067\u304d\u305f\u5f8c\u3001\u3044\u304f\u3064\u304b\u306e\u5148\u9032\u7684\u306a\u30d9\u30f3\u30c0\u30fc\u306f\u3001MTA\u306b\u7e4b\u3052\u308b\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3084\u30b3\u30cd\u30af\u30bf\u30fc\u307e\u3067\u542b\u3093\u3060SMTP\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u59cb\u3081\u307e\u3057\u305f\u304c\u3001\u5341\u5206\u306a\u76f8\u4e92\u904b\u7528\u6027\u3092\u517c\u306d\u5099\u3048\u305f\u3082\u306e\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<p>\u8907\u6570\u306eMTA\u30d9\u30f3\u30c0\u30fc\u306b\u307e\u305f\u304c\u308b\u76f8\u4e92\u904b\u7528\u6027\u306e\u78ba\u4fdd\u306e\u96e3\u3057\u3055\u3084\u3001\u72ec\u81ea\u4ed5\u69d8\u306e\u30b3\u30cd\u30af\u30bf\u30fc\u306e\u5b58\u5728\u306b\u3088\u308a\u3001\u30d9\u30f3\u30c0\u30fc\u306f\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u304b\u3064\u5b89\u5b9a\u3057\u305f\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u5fc5\u8981\u306b\u8feb\u3089\u308c\u30011990\u5e74\u534a\u3070\u306b\u306fSMTP\u304c\u591a\u304f\u306e\u652f\u6301\u3092\u96c6\u3081\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u73fe\u5728\u3001SMTP\u306f\u30b5\u30fc\u30d0\u9593\u30e1\u30fc\u30eb\u8ee2\u9001\u306e\u30c7\u30d5\u30a1\u30af\u30c8\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9\u3068\u306a\u308a\u3001\u30a4\u30f3\u30c8\u30e9\u30cd\u30c3\u30c8\/\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u95a2\u308f\u3089\u305a\u3001Microsoft Exchange\u306e\u3088\u3046\u306a\u4e00\u5ea6\u306f\u72ec\u81ea\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u63a1\u7528\u3057\u305f\u30d7\u30ed\u30c0\u30af\u30c8\u306b\u3055\u3048\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div style=\"clear:both;width:auto;height:40px;\"><!----><\/div>\n<h4><strong>SMTP\u304c\u3084\u3063\u3066\u304f\u308c\u308b\u3053\u3068\u306e\u7bc4\u56f2<\/strong><\/h4>\n<p>\u540d\u524d\u306e\u201dT\u201d\u304c\u793a\u3057\u3066\u3044\u308b\u901a\u308a\u3001SMTP\u306f\u8ee2\u9001(Transport)\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308a\u3001A\u304b\u3089B\u3078\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u79fb\u52d5\u3055\u305b\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002\u591a\u304f\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u540c\u3058\u3088\u3046\u306b\u3001SMTP\u3067\u3082\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30d1\u30b1\u30c3\u30c8\u901a\u4fe1\u306b\u306fTCP(Transmission Control Protocol)\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3064\u307e\u308aIP\u306b\u4e57\u3063\u304b\u3063\u305f\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u305f\u3081\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30b5\u30fc\u30d0\u306b\u5c4a\u3051\u308b\u307e\u3067\u306fSMTP\u304c\u3084\u3063\u3066\u304f\u308c\u307e\u3059\u304c\u3001\u305d\u306e\u5f8c\u306e\u3053\u3068\u306b\u306f\u95a2\u77e5\u3057\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001\u914d\u9054\u54e1\u304c\u571f\u66dc\u306e\u30aa\u30d5\u30a3\u30b9\u306b\u8377\u7269\u3092\u7f6e\u3044\u3066\u3044\u3063\u305f\u3068\u3057\u3066\u3001\u305d\u306e\u5f8c\u306b\u4f55\u304b\u304c\u8d77\u304d\u305f\u3068\u3057\u3066\u3082\u914d\u9054\u54e1\u306e\u8cac\u4efb\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3088\u306d\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u306e\u5230\u9054\u6027\u3001\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3137\" target=\"_blank\">\u8a8d\u8a3c<\/a>\u3001\u6697\u53f7\u5316\u3002\u3053\u308c\u3089\u306f\u5168\u3066\u3001\u5fc5\u305a\u3057\u3082SMTP\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u6a5f\u80fd\u3068\u3044\u3046\u8a33\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u975e\u5e38\u306b\u91cd\u8981\u306a\u3082\u306e\u3067\u3059\u3002<\/p>\n<div style=\"clear:both;width:auto;height:40px;\"><!----><\/div>\n<h4><strong>\u95a2\u9023\u8a18\u4e8b<\/strong><\/h4>\n<ul style=\"background-image:none;list-style-type:disc;margin-left:20px;\">\n<li style=\"background-image:none;\"><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3018\" target=\"_blank\">SendGrid\u304c\u72ec\u81ea\u306b\u958b\u767a\u3057\u305fMTA\u3068\u305d\u306e\u6b74\u53f2<\/a><\/li>\n<li style=\"background-image:none;\"><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=2186\" target=\"_blank\">E\u30e1\u30fc\u30eb\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068TLS\u306b\u3064\u3044\u3066<\/a><\/li>\n<li style=\"background-image:none;\"><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=1554\" target=\"_blank\">\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u6697\u53f7\u5316\u5165\u9580<\/a><\/li>\n<li style=\"background-image:none;\"><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=636\" target=\"_blank\">SMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u3010\u5165\u9580\u3011<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306f SMTP and the Evolution of Email \u306e\u6284\u8a33\u3067\u3059\u3002 SMTP\u3068\u306f Simple Mail Transfer Protocol\uff08\u7c21\u6613\u30e1\u30fc\u30eb\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb\uff09\u3068\u3044\u3046\u540d\u524d\u306e\u901a\u308a\u3001SMTP\u306f\u7c21 <a class=\"read-more\" href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=4115\">&#8230;\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":6388,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9,11],"tags":[],"class_list":["post-4115","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\/4115","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=4115"}],"version-history":[{"count":1,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4115\/revisions"}],"predecessor-version":[{"id":11042,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4115\/revisions\/11042"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/6388"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}