{"id":19931,"date":"2026-01-29T11:30:46","date_gmt":"2026-01-29T02:30:46","guid":{"rendered":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=19931"},"modified":"2026-03-23T16:47:39","modified_gmt":"2026-03-23T07:47:39","slug":"dns%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%ef%bc%9f%e5%9f%ba%e7%a4%8e%e7%9f%a5%e8%ad%98%e3%81%a8%e8%a8%ad%e5%ae%9a%e6%96%b9%e6%b3%95%e3%82%92%e3%82%8f%e3%81%8b%e3%82%8a%e3%82%84%e3%81%99%e3%81%8f","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=19931","title":{"rendered":"DNS\u3068\u306f\u4f55\u304b\uff1f\u57fa\u790e\u77e5\u8b58\u3068\u8a2d\u5b9a\u65b9\u6cd5\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/01\/20260129_blog.png\" alt=\"DNS\u3068\u306f\u4f55\u304b\uff1f\u57fa\u790e\u77e5\u8b58\u3068\u8a2d\u5b9a\u65b9\u6cd5\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\" width=\"100%\" class=\"aligncenter 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System\uff09\u304c\u3042\u308a\u307e\u3059\u3002\u666e\u6bb5\u306f\u305d\u306e\u5b58\u5728\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001Web\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u304d\u3082\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u304d\u3082\u3001\u5e38\u306bDNS\u304c\u50cd\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001DNS\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u3001\u5b9f\u52d9\u3067\u6c42\u3081\u3089\u308c\u308bDNS\u8a2d\u5b9a\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u5bfe\u8c61\u8aad\u8005\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u306f\u306a\u3044\u65b9\u3084\u3001\u3053\u308c\u304b\u3089DNS\u306b\u3064\u3044\u3066\u5b66\u3073\u59cb\u3081\u308b\u65b9\u3067\u3059\u3002\u6280\u8853\u7684\u306a\u8a73\u7d30\u306b\u306f\u8e0f\u307f\u8fbc\u307e\u305a\u3001\u300cDNS\u3068\u306f\u4f55\u3092\u3059\u308b\u3082\u306e\u304b\u300d\u3068\u3044\u3046\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>DNS\u306e\u57fa\u672c\u306f\u300c\u540d\u524d\u300d\u3068\u300c\u5834\u6240\u300d\u306e\u5bfe\u5fdc\u8868<\/h3>\n<p>\u30d6\u30e9\u30a6\u30b6\u306bURL\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u81ea\u7136\u3068Web\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u3066\u9001\u4fe1\u3059\u308c\u3070\u3001\u6587\u7ae0\u304c\u76f8\u624b\u306b\u5c4a\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u306a\u305c\u6587\u5b57\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u3001\u60c5\u5831\u3092\u53d6\u5f97\u3057\u305f\u308a\u3001\u4e16\u754c\u306e\u3069\u3053\u304b\u306b\u3042\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u60c5\u5831\u3092\u5c4a\u3051\u305f\u308a\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u305d\u306e\u88cf\u5074\u3067\u52d5\u3044\u3066\u3044\u308b\u306e\u304c\u300cDNS\u300d\u3067\u3059\u3002<\/p>\n<p>DNS\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u60c5\u5831\u3092\u3001\u6301\u3061\u4e3b\u81ea\u8eab\u304c\u767b\u9332\u30fb\u7ba1\u7406\u3067\u304d\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u6700\u3082\u57fa\u672c\u7684\u306a\u5f79\u5272\u306f\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u305f\u3068\u304d\u3001\u60c5\u5831\u3092\u53d6\u308a\u306b\u884c\u304f\u3079\u304d\u30b5\u30fc\u30d0\u306e\u5834\u6240\u3092\u6559\u3048\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u4eba\u9593\u306f\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u4f8b\u3048\u3070\u3001example.com\u306a\u3069\uff09\u3092\u898b\u308c\u3070\u305d\u306e\u610f\u5473\u3092\u3042\u308b\u7a0b\u5ea6\u60f3\u50cf\u3067\u304d\u307e\u3059\u304c\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u305d\u308c\u3060\u3051\u3092\u898b\u3066\u3082\u30a2\u30af\u30bb\u30b9\u5148\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306fIP\u30a2\u30c9\u30ec\u30b9\u3068\u3044\u3046\u6570\u5b57\u3067\u901a\u4fe1\u5148\u3092\u7279\u5b9a\u3057\u307e\u3059\uff08192.0.2.1\u3068\u3044\u3063\u305f\u5f62\u5f0f\u3092\u3057\u3066\u3044\u307e\u3059\uff09\u3002DNS\u306f\u3001\u300cIP\u30a2\u30c9\u30ec\u30b9\u300d\u3068\u4eba\u9593\u306b\u3068\u3063\u3066\u899a\u3048\u3084\u3059\u3044\u300c\u30c9\u30e1\u30a4\u30f3\u540d\u300d\u3068\u3092\u7d50\u3073\u3064\u3051\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30e9\u30a6\u30b6\u306b\u300cexample.com\u300d\u3068\u3044\u3063\u305fURL\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u5b9f\u306f\u307e\u305aDNS\u306b\u300c\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u60c5\u5831\u306f\u3069\u306eIP\u30a2\u30c9\u30ec\u30b9\u306b\u3042\u308a\u307e\u3059\u304b\uff1f\u300d\u3068\u554f\u3044\u5408\u308f\u305b\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002DNS\u304b\u3089\u8fd4\u3063\u3066\u304d\u305fIP\u30a2\u30c9\u30ec\u30b9\u3092\u3082\u3068\u306b\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u76ee\u7684\u306e\u30b5\u30fc\u30d0\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001Web\u30da\u30fc\u30b8\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3>DNS\u30ec\u30b3\u30fc\u30c9\u3068\u306f\u4f55\u304b<\/h3>\n<p>DNS\u306b\u306f\u3001\u5358\u306a\u308b\u5834\u6240\u306e\u60c5\u5831\u3060\u3051\u3067\u306a\u304f\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u60c5\u5831\u3092\u767b\u9332\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u60c5\u5831\u306f\u300cDNS\u30ec\u30b3\u30fc\u30c9\u300d\uff08\u30ea\u30bd\u30fc\u30b9\u30ec\u30b3\u30fc\u30c9\uff09\u3068\u547c\u3070\u308c\u3001\u7528\u9014\u306b\u3088\u3063\u3066\u7a2e\u985e\u304c\u5206\u304b\u308c\u3066\u3044\u307e\u3059\u3002\u3044\u304f\u3064\u304b\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h4>A\u30ec\u30b3\u30fc\u30c9\uff1aWeb\u30da\u30fc\u30b8\u306e\u5834\u6240\u3092\u6559\u3048\u308b<\/h4>\n<p>\u4e0a\u3067\u8ff0\u3079\u305f\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3068IP\u30a2\u30c9\u30ec\u30b9\u3068\u3092\u7d50\u3073\u3064\u3051\u308b\u60c5\u5831\u306fA\u30ec\u30b3\u30fc\u30c9\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u3067Web\u30da\u30fc\u30b8\u3092\u95b2\u89a7\u3059\u308b\u3068\u304d\u306b\u4f7f\u308f\u308c\u308b\u306e\u304c\u3001\u3053\u306eA\u30ec\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<h4>MX\u30ec\u30b3\u30fc\u30c9\uff1a\u30e1\u30fc\u30eb\u306e\u5c4a\u3051\u5148\u3092\u6559\u3048\u308b<\/h4>\n<p>MX\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30e1\u30fc\u30eb\u306e\u5c4a\u3051\u5148\u306e\u30b5\u30fc\u30d0\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306e\u30ec\u30b3\u30fc\u30c9\u3067\u3059\u3002\u90f5\u4fbf\u3067\u8a00\u3048\u3070\u300c\u3053\u306e\u4eba\u3078\u306e\u624b\u7d19\u306f\u3001\u3053\u3053\u306b\u5c4a\u3051\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u5ba3\u8a00\u3059\u308b\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>Web\u30da\u30fc\u30b8\u306e\u60c5\u5831\u304c\u3042\u308b\u30b5\u30fc\u30d0\u3068\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u308b\u30b5\u30fc\u30d0\u306f\u5225\u3067\u3082\u3088\u3044\u305f\u3081\u3001A\u30ec\u30b3\u30fc\u30c9\u3068\u306f\u72ec\u7acb\u3057\u3066\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h4>CNAME\u30ec\u30b3\u30fc\u30c9\uff1a\u5225\u540d\u3067\u6848\u5185\u3059\u308b<\/h4>\n<p>CNAME\u30ec\u30b3\u30fc\u30c9\u306f\u300c\u5225\u540d\u300d\u3092\u5b9a\u7fa9\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u300cwww.yoursite.example \u30c9\u30e1\u30a4\u30f3\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u3001example.co.jp \u3068\u540c\u3058\u5834\u6240\u3078\u6848\u5185\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u3044\u3046\u3088\u3046\u306b\u3001\u5225\u306e\u30c9\u30e1\u30a4\u30f3\u3078\u8ee2\u9001\u3059\u308b\u969b\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u5229\u7528\u8005\u306b\u898b\u305b\u308b\u540d\u524d\uff08www.yoursite.example\uff09\u3092\u5909\u3048\u305a\u306b\u3001\u4e2d\u8eab\u3060\u3051\u5909\u3048\u308b\uff08example.co.jp\uff09\u3068\u3044\u3046\u5229\u7528\u65b9\u6cd5\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>TXT\u30ec\u30b3\u30fc\u30c9\uff1a\u30e1\u30e2\u3092\u6b8b\u3059<\/h4>\n<p>TXT\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306b\u3064\u3044\u3066\u306e\u88dc\u8db3\u60c5\u5831\u3092\u8ab0\u3082\u304c\u78ba\u8a8d\u3067\u304d\u308b\u5f62\u3067\u8a18\u8f09\u3057\u3066\u304a\u304f\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002\u4e0a\u3067\u7d39\u4ecb\u3057\u305f\u30ec\u30b3\u30fc\u30c9\u3068\u7570\u306a\u308a\u3001\u7279\u306b\u5b9a\u307e\u3063\u305f\u76ee\u7684\u304c\u3042\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u305f\u3060\u300c\u66f8\u3044\u3066\u304a\u304f\u300d\u3060\u3051\u3067\u3059\u3002\u5fc5\u8981\u306a\u4eba\u3060\u3051\u304c\u8aad\u307f\u306b\u304d\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001Web\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528\u3092\u958b\u59cb\u3059\u308b\u969b\u3001\u30c9\u30e1\u30a4\u30f3\u304c\u81ea\u5206\u306e\u7ba1\u7406\u4e0b\u306b\u3042\u308b\u3053\u3068\u3092\u30b5\u30fc\u30d3\u30b9\u5074\u306b\u8a3c\u660e\u3059\u308b\u305f\u3081\u306b\u3001\u6307\u5b9a\u3055\u308c\u305fTXT\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u304c\u6c42\u3081\u3089\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>Web\u30b5\u30fc\u30d3\u30b9\u304cDNS\u8a2d\u5b9a\u3092\u6c42\u3081\u308b\u7406\u7531<\/h3>\n<p>Web\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u300cDNS\u306b\u3053\u306e\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u6307\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u306a\u305c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>DNS\u306f\u3001\u300c\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u306f\u8ab0\u306e\u3082\u306e\u3067\u3001\u30c9\u30e1\u30a4\u30f3\u3084\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u3069\u3093\u306a\u5f79\u5272\u3092\u4efb\u305b\u3066\u3044\u308b\u306e\u304b\u300d\u3068\u3044\u3063\u305f\u60c5\u5831\u3092\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u6301\u3061\u4e3b\u81ea\u8eab\u304c\u516c\u958b\u3067\u304d\u308b\u5834\u6240\u3067\u3059\u3002Web\u30b5\u30fc\u30d3\u30b9\u3092\u3042\u306a\u305f\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u540d\u7fa9\u3067\u5229\u7528\u3057\u305f\u3044\u5834\u5408\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u6b63\u3057\u304f\u7d10\u4ed8\u3051\u308b\u305f\u3081\u306b\u3001DNS\u306b\u60c5\u5831\u3092\u8a18\u8f09\u3059\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<h4>\u4f8b\u2460\uff1aWeb\u30b5\u30a4\u30c8\u4f5c\u6210\u30b5\u30fc\u30d3\u30b9<\/h4>\n<p>Web\u30b5\u30a4\u30c8\u3092\u7c21\u5358\u306b\u4f5c\u6210\u3057\u3066\u516c\u958b\u3067\u304d\u308b\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u306f\u306a\u304f\u3001\u81ea\u5206\u306e\u4f1a\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u3067Web\u30b5\u30a4\u30c8\u3092\u516c\u958b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u969b\u3001DNS\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002A\u30ec\u30b3\u30fc\u30c9\u3084CNAME\u30ec\u30b3\u30fc\u30c9\u306b\u3001\u305d\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u30b5\u30fc\u30d0\u306e\u60c5\u5831\u3092\u8a18\u8f09\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>\u4f8b\u2461\uff1a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9<\/h4>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u5834\u5408\u3001\u30b5\u30fc\u30d3\u30b9\u304c\u3042\u306a\u305f\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u4f7f\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u3063\u3066\u3088\u3044\u3053\u3068\u3092\u660e\u793a\u7684\u306b\u5ba3\u8a00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7b2c\u4e09\u8005\uff08\u30b5\u30fc\u30d3\u30b9\uff09\u304c\u52dd\u624b\u306b\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u540d\u4e57\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u3063\u305f\u3068\u307f\u306a\u3055\u308c\u308b\u3068\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3068\u5224\u5b9a\u3055\u308c\u3066\u3057\u307e\u3046\u305f\u3081\u3067\u3059\u3002\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u4f7f\u3063\u305f\u30e1\u30fc\u30eb\u304c\u3069\u306eIP\u30a2\u30c9\u30ec\u30b9\u3084\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u3046\u308b\u304b\u3092TXT\u30ec\u30b3\u30fc\u30c9\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n<h3>DNS\u8a2d\u5b9a\u306f\u3069\u3053\u3067\u8ab0\u304c\u884c\u3046\u306e\u304b<\/h3>\n<p>\u300cDNS\u306b\u3053\u306e\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u6307\u793a\u3055\u308c\u3066\u3082\u3001\u3069\u3053\u3067\u8a2d\u5b9a\u3092\u884c\u3048\u3070\u3088\u3044\u306e\u304b\u3001\u6238\u60d1\u3046\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>DNS\u8a2d\u5b9a\u306f\u3001\u305d\u308c\u3092\u6c42\u3081\u3066\u304d\u305fWeb\u30b5\u30fc\u30d3\u30b9\u306e\u7ba1\u7406\u753b\u9762\u3067\u884c\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3057\u3066\u3044\u308b\u306e\u306fWeb\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u306a\u304f\u3001\u3042\u306a\u305f\uff08\u3084\u3042\u306a\u305f\u306e\u4f1a\u793e\uff09\u81ea\u8eab\u3060\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306b\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u3092\u53d6\u5f97\u30fb\u7ba1\u7406\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u3067\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002\u304a\u540d\u524d.com\u3084\u30e0\u30fc\u30e0\u30fc\u30c9\u30e1\u30a4\u30f3\u306a\u3069\u3001\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u30c9\u30e1\u30a4\u30f3\u3092\u8cfc\u5165\u3057\u305f\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u308f\u304b\u3089\u306a\u3051\u308c\u3070\u3001\u793e\u5185\u306eICT\u62c5\u5f53\u8005\u306b\u78ba\u8a8d\u3059\u308b\u306e\u304c\u8fd1\u9053\u3067\u3059\u3002<\/p>\n<h4>DNS\u8a2d\u5b9a\u306e\u57fa\u672c\u306f\u300c3\u3064\u306e\u9805\u76ee\u300d\u306e\u30bb\u30c3\u30c8<\/h4>\n<p>\u3069\u306e\u30c9\u30e1\u30a4\u30f3\u7ba1\u7406\u30b5\u30fc\u30d3\u30b9\u3067\u3082\u3001DNS\u8a2d\u5b9a\u306e\u57fa\u672c\u7684\u306a\u69cb\u9020\u306f\u540c\u3058\u3067\u3059\u3002\u4ee5\u4e0b\u306e3\u3064\u306e\u9805\u76ee\u3092\u30ef\u30f3\u30bb\u30c3\u30c8\u3067\u767b\u9332\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u81ea\u5206\u306e\u7ba1\u7406\u4e0b\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u3046\u3061\u3001\u3069\u306e\u540d\u524d\uff08\u30c9\u30e1\u30a4\u30f3\u3084\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\uff09\u306b\u8a2d\u5b9a\u3059\u308b\u304b<\/li>\n<li>\u3069\u306e\u7a2e\u985e\uff08\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u304b\uff08A\u3001MX\u3001CNAME\u3001TXT\u306a\u3069\uff09<\/li>\n<li>\u3069\u306e\u5024\uff08\u8a2d\u5b9a\u5185\u5bb9\uff09\u3092\u6307\u5b9a\u3059\u308b\u304b<\/li>\n<\/ol>\n<p>\u305f\u3068\u3048\u3070\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6307\u793a\u304c\u3042\u3063\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30db\u30b9\u30c8\u540d\uff1aemail.example.com<\/li>\n<li>\u30bf\u30a4\u30d7\uff1aCNAME<\/li>\n<li>\u5024\uff1asendgrid.net<\/li>\n<\/ul>\n<p>\u3053\u308c\u306f\u300cemail.example.com\u3068\u3044\u3046\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306eCNAME\u30ec\u30b3\u30fc\u30c9\u306b\u3001sendgrid.net\u3068\u3044\u3046\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002<\/p>\n<h4>\u8a2d\u5b9a\u753b\u9762\u306e\u4f8b<\/h4>\n<p>\u591a\u304f\u306eWeb\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u3053\u306e3\u3064\u306e\u9805\u76ee\u306e\u7d44\u3092\u63d0\u793a\u3057\u3066\u3001DNS\u306b\u8a2d\u5b9a\u3059\u308b\u3088\u3046\u6848\u5185\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4f8b\u3067\u306f\u3001\u81ea\u5206\u306e\u30c9\u30e1\u30a4\u30f3\uff08example.com\uff09\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3057\u3001CNAME\u30ec\u30b3\u30fc\u30c9\u30923\u3064\u3001TXT\u30ec\u30b3\u30fc\u30c9\u30921\u3064\u8a2d\u5b9a\u3059\u308b\u3088\u3046\u306b\u6c42\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/01\/image1.png\" alt=\"\u8a2d\u5b9a\u753b\u9762\u306e\u4f8b\" width=\"100%\" class=\"aligncenter size-full wp-image-19933\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/01\/image1.png 1999w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/01\/image1-300x116.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/01\/image1-768x296.png 768w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/01\/image1-1024x394.png 1024w\" sizes=\"(max-width: 1999px) 100vw, 1999px\" 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Name System\uff09\u304c\u3042\u308a\u307e\u3059\u3002\u666e\u6bb5\u306f\u305d\u306e\u5b58\u5728\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001Web\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u304d\u3082\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u304d\u3082\u3001\u5e38\u306bDNS\u304c\u50cd\u3044 <a class=\"read-more\" href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=19931\">&#8230;\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":19932,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11],"tags":[],"class_list":["post-19931","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/19931","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=19931"}],"version-history":[{"count":5,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/19931\/revisions"}],"predecessor-version":[{"id":19939,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/19931\/revisions\/19939"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/19932"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}