{"id":4123,"date":"2015-09-18T11:04:35","date_gmt":"2015-09-18T02:04:35","guid":{"rendered":"https:\/\/ec2-54-238-200-5.ap-northeast-1.compute.amazonaws.com\/blog\/?p=4123"},"modified":"2026-01-07T16:17:06","modified_gmt":"2026-01-07T07:17:06","slug":"smtp%e3%81%a8%e3%83%a1%e3%83%bc%e3%83%ab%e3%81%ae%e5%88%b0%e9%81%94%e6%80%a7","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=4123","title":{"rendered":"SMTP\u3068\u30e1\u30fc\u30eb\u306e\u5230\u9054\u6027"},"content":{"rendered":"<p style=\"margin-bottom:0;\"><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2015\/09\/43280673_s.jpg\" alt=\"SMTP\u3068\u30e1\u30fc\u30eb\u306e\u5230\u9054\u6027\" class=\"alignnone size-full wp-image-4124\" width=\"100%\" style=\"margin:0;\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2015\/09\/43280673_s.jpg 450w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2015\/09\/43280673_s-300x191.jpg 300w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/p>\n<blockquote>\n<p>\u3053\u306e\u8a18\u4e8b\u306f <a href=\"https:\/\/sendgrid.com\/blog\/smtp-email-deliverability\/\" target=\"_blank\">SMTP and Email Deliverability<\/a> \u306e\u6284\u8a33\u3067\u3059\u3002<\/p>\n<\/blockquote>\n<p>\u524d\u56de\u306e\u30d6\u30ed\u30b0\u8a18\u4e8b\u300c<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=4115\" target=\"_blank\">SMTP\u3068\u30e1\u30fc\u30eb<\/a>\u300d\u3067\u306f\u3001SMTP\u306e\u8d77\u6e90\u3068\u3001\u30e1\u30fc\u30eb\u304c\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u5e83\u307e\u3063\u305f\u306e\u304b\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u672c\u30d6\u30ed\u30b0\u3067\u306f\u3053\u308c\u307e\u3067\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=1722\" target=\"_blank\">\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>\u3084\u30c8\u30e9\u30d6\u30eb\u6642\u306e\u5bfe\u51e6\u306b\u3064\u3044\u3066\u8272\u3005\u3068\u304a\u8a71\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u4eca\u56de\u306f\u3044\u3064\u3082\u3068\u5c11\u3057\u9055\u3063\u305f\u8996\u70b9\u3067\u3001\u300c\u30e1\u30fc\u30eb\u304c\u5c4a\u304f\u3068\u306f\u3069\u3046\u3044\u3046\u3053\u3068\u306a\u306e\u304b\u300d\u306b\u3064\u3044\u3066\u6539\u3081\u3066\u8003\u3048\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p><!--more--><\/p>\n<div style=\"clear:both;width:auto;height:40px;\"><!----><\/div>\n<h4><strong>\u30e1\u30fc\u30eb\u306e\u5230\u9054\u6027\u3068\u306f\uff1f<\/strong><\/h4>\n<p>\u7c21\u5358\u306b\u8a00\u3046\u3068\u3001\u30e1\u30fc\u30eb\u304c\u76ee\u7684\u5730\u3078\u5c4a\u304f\u304b\u3069\u3046\u304b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u6ce8\u6587\u72b6\u6cc1\u3084\u5546\u54c1\u767a\u9001\u306e\u304a\u77e5\u3089\u305b\u3001\u66f4\u65b0\u901a\u77e5\u3001\u4e00\u523b\u3092\u4e89\u3046\u30a2\u30ca\u30a6\u30f3\u30b9\u306e\u9001\u4fe1\u306a\u3069\u306e\u30e1\u30fc\u30eb\u3067\u306f\u3001\u5230\u9054\u6027\u304c\u7279\u306b\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u5c4a\u304b\u306a\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u3001\u9867\u5ba2\u306b\u3068\u3063\u3066\u3082\u9001\u4fe1\u8005\u306b\u3068\u3063\u3066\u3082\u4fa1\u5024\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<div style=\"clear:both;width:auto;height:40px;\"><!----><\/div>\n<h4><strong>\u4f55\u3092\u3082\u3063\u3066 \u201c\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u305f\u201d \u3068\u8003\u3048\u308b\u304b\uff1f<\/strong><\/h4>\n<p style=\"margin-bottom:1.5em;\">\u201c\u30e1\u30fc\u30eb\u304c\u5c4a\u304f\u201d \u3068\u3044\u3046\u3053\u3068\u306b\u3064\u3044\u3066\u3001\u8003\u3048\u65b9\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<br \/>\n\u4f8b\u3048\u3070Contoso\u793e\u306eAlice\u304c\u3001Fabrikam\u793e\u306eBob\u306b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u5834\u5408\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u5f7c\u5973\u306e\u30e1\u30fc\u30eb\u304c \u201c\u5c4a\u3044\u305f\u201d \u306e\u306f\u3001\u3044\u3064\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<ul style=\"background-image: none; list-style-type: disc;\">\n<li style=\"background-image: none; margin-bottom: 1em; margin-left: 20px;\">\u30e1\u30fc\u30eb\u304cAlice\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u9001\u4fe1\u3055\u308c\u3001Contoso\u306e\u30b5\u30fc\u30d0\u306b\u53d7\u3051\u4ed8\u3051\u3089\u308c\u305f\u3068\u304d\uff1f\n<ul style=\"background-image: none; list-style-type: circle; margin-top: 0.7em; margin-bottom:0;\">\n<li style=\"background-image: none;  margin-bottom:0; \">\u9001\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u9001\u4fe1\u51e6\u7406\u3092\u7d42\u3048\u305f\u6642\u70b9\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001\u3053\u308c\u3092\u624b\u7d19\u3067\u4f8b\u3048\u308b\u306a\u3089\u300c\u30aa\u30d5\u30a3\u30b9\u5185\u306e\u90f5\u4fbf\u30dd\u30b9\u30c8\u306b\u51fa\u3057\u305f\u3068\u304d\u300d\u3068\u3044\u3063\u305f\u3068\u3053\u308d\u3067\u3057\u3087\u3046\u304b\u3002<\/li>\n<\/ul>\n<\/li>\n<li style=\"background-image: none; margin-bottom: 1em; margin-left: 20px;\">\u30e1\u30fc\u30eb\u304c\u3001Contoso\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089Fabrikam\u306e\u30b5\u30fc\u30d0\u307e\u3067\u5230\u9054\u3057\u305f\u3068\u304d\uff1f\n<ul style=\"background-image: none; list-style-type: circle; margin-top: 0.7em; margin-bottom:0;\">\n<li style=\"background-image: none;  margin-bottom:0; \">\u3053\u308c\u3092\u4f01\u696d\u306e\u30e1\u30fc\u30eb\u30eb\u30fc\u30e0\u306b\u8377\u7269\u3092\u9001\u308b\u3088\u3046\u306a\u30b1\u30fc\u30b9\u306b\u4f8b\u3048\u308b\u3068\u3001\u5b9b\u5148\u4f01\u696d\u306e\u8ab0\u304b\u304c\u53d7\u53d6\u308a\u306e\u30b5\u30a4\u30f3\u3092\u3057\u305f\u3001\u3068\u3044\u3046\u72b6\u6cc1\u3067\u3059\u3002\u5c4a\u3051\u305f\u3044\u76f8\u624b\u304c\u305d\u306e\u8377\u7269\u3092\u624b\u306b\u3057\u305f\u8a33\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<\/li>\n<li style=\"background-image: none; margin-bottom: 1em; margin-left: 20px;\">Alice\u306e\u30e1\u30fc\u30eb\u304c\u3001Bob\u306e\u30b5\u30fc\u30d0\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u3044\u305f\u3068\u304d\uff1f<\/li>\n<li style=\"background-image: none; margin-bottom: 1em; margin-left: 20px;\">Bob\u304c\u305d\u306e\u30e1\u30fc\u30eb\u3092\u5b9f\u969b\u306b\u958b\u5c01\u3057\u3066\u8aad\u3093\u3060\u3068\u304d\uff1f<\/li>\n<\/ul>\n<p>\u201c\u5230\u9054\u201d \u306e\u610f\u5473\u306f\u305d\u306e\u80cc\u666f\u306b\u3088\u3063\u3066\u5909\u308f\u308b\u305f\u3081\u3001\u7b54\u3048\u306f1\u3064\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u5927\u62b5\u306f\u300c\u5b9b\u5148\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u5c4a\u3044\u305f\u3068\u304d\u300d\u3092\u30e1\u30fc\u30eb\u306e\u5230\u9054\u3068\u8003\u3048\u307e\u3059\u3002\uff08\u305f\u3060\u3057\u3001\u6280\u8853\u7684\u306b\u306fSMTP\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u6700\u5f8c\u3067 \u201d250 OK\u201d \u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u53d7\u3051\u53d6\u3063\u305f\u3068\u304d\u3092 \u201c\u5230\u9054\u201d \u3068\u8003\u3048\u307e\u3059\u3002\u201d250 OK\u201d \u306f\u3001SMTP\u306e\u624b\u7d9a\u304d\u304c\u6700\u521d\u304b\u3089\u6700\u5f8c\u307e\u3067\u6210\u529f\u3057\u305f\u3001\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002\uff09<\/p>\n<p>\u624b\u7d19\u306e\u5834\u5408\u3001\u307b\u3068\u3093\u3069\u306e\u4eba\u304c\u300c\u624b\u7d19\u304c\u5c4a\u304f\uff1d\u624b\u7d19\u304c\u5b9b\u5148\u306e\u90f5\u4fbf\u53d7\u3051\u306b\u5165\u3063\u305f\u300d\u3068\u8003\u3048\u308b\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u30e1\u30fc\u30eb\u306e\u5834\u5408\u306f\u300c\u5b9b\u5148\u306b\u5230\u9054\u3057\u305f\u304b\u3069\u3046\u304b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u53d7\u4fe1\u8005\u304c\u305d\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092<strong>\u8aad\u3093\u3060\u304b\u3069\u3046\u304b<\/strong>\u306b\u7740\u76ee\u3059\u3079\u304d\u300d\u3068\u3044\u3046\u610f\u898b\u306e\u4eba\u3082\u3044\u307e\u3059\u3002\u306a\u304a\u3001\u30e1\u30fc\u30eb\u306e\u958b\u5c01\u3084\u30af\u30ea\u30c3\u30af\u3092\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u5224\u5225\u306f\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<div style=\"clear:both;width:auto;height:40px;\"><!----><\/div>\n<h4><strong>\u4e00\u6642\u7684\u306a\u4e0d\u9054\u554f\u984c\u3068\u3001\u6052\u4e45\u7684\u306a\u4e0d\u9054\u554f\u984c<\/strong><\/h4>\n<p>\u30e1\u30fc\u30eb\u306e\u4e0d\u9054\u554f\u984c\u3092\u8003\u3048\u308b\u969b\u306b\u91cd\u8981\u306b\u306a\u308b\u306e\u304c\u3001\u305d\u308c\u304c<strong>\u4e00\u6642\u7684<\/strong>\u306a\u3082\u306e\u306a\u306e\u304b<strong>\u6052\u4e45\u7684<\/strong>\u306a\u3082\u306e\u306a\u306e\u304b\u3092\u533a\u5225\u3059\u308b\u3053\u3068\u3067\u3059\u3002<br \/>\n\u4e00\u6642\u7684\u306a\u554f\u984c\uff08\u30bd\u30d5\u30c8\u30d0\u30a6\u30f3\u30b9\uff09\u306e\u5834\u5408\u3001\u9045\u5ef6\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304c\u6700\u7d42\u7684\u306b\u306f\u5c4a\u304d\u307e\u3059\uff08\u4e00\u822c\u7684\u306bSMTP\u30b5\u30fc\u30d0\u306f\u6700\u592772\u6642\u9593\u81ea\u52d5\u7684\u306b\u518d\u9001\u3057\u307e\u3059\uff09\u3002\u30bd\u30d5\u30c8\u30d0\u30a6\u30f3\u30b9\u306e\u4f8b\u3068\u3057\u3066\u306f\u3001\u4e00\u6642\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u969c\u5bb3\u3001\u30b9\u30ed\u30c3\u30c8\u30ea\u30f3\u30b0\uff08\u6d41\u91cf\u5236\u9650\uff09\u3001\u5b9b\u5148\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u304c\u3044\u3063\u3071\u3044\u306b\u306a\u3063\u3066\u3044\u308b\u3001\u3068\u3044\u3063\u305f\u3082\u306e\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u3046\u3044\u3063\u305f\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=658#mta\" target=\"_blank\">MTA<\/a>\u306f\u30e1\u30fc\u30eb\u306e\u30ad\u30e5\u30fc\u30a4\u30f3\u30b0\u3084\u30ea\u30c8\u30e9\u30a4\u3068\u3044\u3063\u305f\u6a5f\u80fd\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u5b9b\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304c\u5b58\u5728\u3057\u306a\u3044\u306a\u3069\u3001\u6052\u4e45\u7684\u306a\u554f\u984c\uff08\u30cf\u30fc\u30c9\u30d0\u30a6\u30f3\u30b9\uff09\u306b\u3064\u3044\u3066\u306f\u6642\u9593\u304c\u7d4c\u3063\u3066\u3082\u89e3\u6c7a\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u30d0\u30a6\u30f3\u30b9\u306e\u7a2e\u985e\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u5b9b\u5148\u30ea\u30b9\u30c8\u3092\u66f4\u65b0\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002SendGrid\u306e\u3088\u3046\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u53d7\u4fe1\u8005\u306e\u53cd\u5fdc\u3092\u8a73\u3057\u304f\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u53cd\u5fdc\u306e\u306a\u3044\u5b9b\u5148\u3092\u30ea\u30b9\u30c8\u304b\u3089\u524a\u9664\u3059\u308b\u3068\u3044\u3063\u305f\u5bfe\u51e6\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>SendGrid\u306b\u304a\u3051\u308b\u30d0\u30a6\u30f3\u30b9\u306e\u6271\u3044\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=17622\" target=\"_blank\">\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u306e\u539f\u56e0\u3068\u5bfe\u7b56<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\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=4115\" target=\"_blank\">SMTP\u3068\u30e1\u30fc\u30eb<\/a><\/li>\n<li style=\"background-image:none;\"><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=1722\" target=\"_blank\">Email Deliverability Guide \u2013 \u30e1\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u305f\u3081\u306b<\/a><\/li>\n<li style=\"background-image:none;\"><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=2827\" target=\"_blank\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30c8\u30e9\u30d6\u30eb\u306b\u906d\u9047\u3057\u305f\u969b\u306b\u78ba\u8a8d\u3059\u3079\u304d5\u3064\u306e\u3053\u3068<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306f SMTP and Email Deliverability \u306e\u6284\u8a33\u3067\u3059\u3002 \u524d\u56de\u306e\u30d6\u30ed\u30b0\u8a18\u4e8b\u300cSMTP\u3068\u30e1\u30fc\u30eb\u300d\u3067\u306f\u3001SMTP\u306e\u8d77\u6e90\u3068\u3001\u30e1\u30fc\u30eb\u304c\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u5e83\u307e\u3063\u305f\u306e\u304b\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002 \u672c\u30d6\u30ed\u30b0\u3067\u306f\u3053 <a class=\"read-more\" href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=4123\">&#8230;\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":6389,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-4123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-best-practices"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4123","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=4123"}],"version-history":[{"count":5,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4123\/revisions"}],"predecessor-version":[{"id":19877,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4123\/revisions\/19877"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/6389"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}