{"id":476904,"date":"2023-08-09T09:05:02","date_gmt":"2023-08-09T09:05:02","guid":{"rendered":""},"modified":"2023-09-05T11:13:38","modified_gmt":"2023-09-05T11:13:38","slug":"dns-mx-record","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/dns-mx-record\/","title":{"rendered":"DNS MX\u30ec\u30b3\u30fc\u30c9"},"content":{"rendered":"<h2>DNS MX\u30ec\u30b3\u30fc\u30c9\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2<\/h2>\n<p>\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) MX \u30ec\u30b3\u30fc\u30c9 (\u30e1\u30fc\u30eb\u4ea4\u63db\u30ec\u30b3\u30fc\u30c9\u306e\u7565) \u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u306e\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002MX \u30ec\u30b3\u30fc\u30c9\u306e\u6982\u5ff5\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u4ea4\u63db\u30b7\u30b9\u30c6\u30e0\u304c\u767a\u5c55\u3057\u3066\u3044\u305f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u521d\u671f\u306e\u9803\u306b\u307e\u3067\u9061\u308a\u307e\u3059\u30021980 \u5e74\u4ee3\u306b\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u6025\u901f\u306b\u5897\u52a0\u3057\u305f\u305f\u3081\u3001\u96fb\u5b50\u30e1\u30fc\u30eb \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u5316\u3055\u308c\u305f\u30b7\u30b9\u30c6\u30e0\u306e\u5fc5\u8981\u6027\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3057\u305f\u3002MX \u30ec\u30b3\u30fc\u30c9\u306e\u6700\u521d\u306e\u8a00\u53ca\u306f\u30011983 \u5e74 11 \u6708\u306b\u516c\u958b\u3055\u308c\u305f RFC 883 \u306b\u9061\u308a\u307e\u3059\u3002\u3053\u306e RFC \u3067\u306f\u3001\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0\u306e\u4ed5\u69d8\u304c\u5c0e\u5165\u3055\u308c\u3001MX \u30ec\u30b3\u30fc\u30c9\u3068\u96fb\u5b50\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u304a\u3051\u308b\u305d\u306e\u5f79\u5272\u306b\u3064\u3044\u3066\u306e\u8a73\u7d30\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<h2>DNS MX\u30ec\u30b3\u30fc\u30c9\u306e\u8a73\u7d30\u60c5\u5831<\/h2>\n<p>DNS MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u53d7\u4fe1\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u51e6\u7406\u3092\u62c5\u5f53\u3059\u308b\u9069\u5207\u306a\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306b\u96fb\u5b50\u30e1\u30fc\u30eb\u3092\u8ee2\u9001\u3059\u308b\u305f\u3081\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001DNS \u30be\u30fc\u30f3 \u30d5\u30a1\u30a4\u30eb\u5185\u306e\u30ea\u30bd\u30fc\u30b9 \u30ec\u30b3\u30fc\u30c9\u306e\u4e00\u7a2e\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u3092\u5b9b\u5148\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>DNS MX\u30ec\u30b3\u30fc\u30c9\u306e\u5185\u90e8\u69cb\u9020\u3068\u305d\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>DNS MX \u30ec\u30b3\u30fc\u30c9\u306e\u69cb\u9020\u306f\u6bd4\u8f03\u7684\u5358\u7d14\u3067\u3059\u3002\u6b21\u306e 2 \u3064\u306e\u4e3b\u8981\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u512a\u5148\u5024:<\/strong> \u3053\u308c\u306f\u5404 MX \u30ec\u30b3\u30fc\u30c9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u6570\u5024\u3067\u3001\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306e\u512a\u5148\u5ea6\u3092\u793a\u3057\u307e\u3059\u3002\u5024\u304c\u5c0f\u3055\u3044\u307b\u3069\u512a\u5148\u5ea6\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u304c\u30c9\u30e1\u30a4\u30f3\u306b\u9001\u4fe1\u3055\u308c\u308b\u3068\u3001\u9001\u4fe1\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306f\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306e MX \u30ec\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u3001\u512a\u5148\u5ea6\u5024\u304c\u6700\u3082\u4f4e\u3044\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u914d\u4fe1\u3057\u3088\u3046\u3068\u3057\u307e\u3059\u3002\u512a\u5148\u5ea6\u5024\u304c\u540c\u3058\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u3001\u9001\u4fe1\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306f\u30e9\u30a6\u30f3\u30c9\u30ed\u30d3\u30f3\u65b9\u5f0f\u3067\u5404\u30b5\u30fc\u30d0\u30fc\u306b\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3057\u3088\u3046\u3068\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306eFQDN:<\/strong> \u30c9\u30e1\u30a4\u30f3\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u3092\u62c5\u5f53\u3059\u308b\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306e\u5b8c\u5168\u4fee\u98fe\u30c9\u30e1\u30a4\u30f3\u540d (FQDN)\u3002\u3053\u306e FQDN \u306f\u3001\u5f8c\u7d9a\u306e DNS \u30af\u30a8\u30ea\u3092\u901a\u3058\u3066 IP \u30a2\u30c9\u30ec\u30b9\u306b\u89e3\u6c7a\u3055\u308c\u3001\u9001\u4fe1\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u304c\u63a5\u7d9a\u3092\u78ba\u7acb\u3057\u3066\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u96fb\u5b50\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u8005\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u9001\u4fe1\u3055\u308c\u308b\u3068\u3001\u9001\u4fe1\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306f\u53d7\u4fe1\u8005\u306e\u30c9\u30e1\u30a4\u30f3 MX \u30ec\u30b3\u30fc\u30c9\u3092 DNS \u306b\u7167\u4f1a\u3057\u307e\u3059\u3002\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u512a\u5148\u5024\u306b\u57fa\u3065\u3044\u3066\u3001\u5bfe\u5fdc\u3059\u308b\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3057\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u3092\u8a66\u307f\u307e\u3059\u3002<\/p>\n<h2>DNS MX\u30ec\u30b3\u30fc\u30c9\u306e\u4e3b\u306a\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n<p>DNS MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u78ba\u5b9f\u306a\u914d\u4fe1\u306b\u4e0d\u53ef\u6b20\u306a\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u5197\u9577\u6027\u3068\u8ca0\u8377\u5206\u6563:<\/strong> \u7570\u306a\u308b\u512a\u5148\u5024\u3092\u6301\u3064\u8907\u6570\u306e MX \u30ec\u30b3\u30fc\u30c9\u3092\u8a31\u53ef\u3059\u308b\u3053\u3068\u3067\u3001\u30c9\u30e1\u30a4\u30f3\u306f\u5197\u9577\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u3092\u8a2d\u5b9a\u3067\u304d\u30011 \u3064\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u4f7f\u7528\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u5834\u5408\u3067\u3082\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u540c\u3058\u512a\u5148\u5024\u3092\u6301\u3064\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u30e1\u30fc\u30eb \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5206\u6563\u3059\u308b\u3053\u3068\u3067\u3001\u8ca0\u8377\u5206\u6563\u6a5f\u80fd\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u512a\u5148\u5ea6\u30d9\u30fc\u30b9\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0:<\/strong> \u512a\u5148\u5ea6\u5024\u306b\u3088\u308a\u3001\u7ba1\u7406\u8005\u306f\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306e\u512a\u5148\u5ea6\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u96fb\u5b50\u30e1\u30fc\u30eb \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u6700\u521d\u306b\u30d7\u30e9\u30a4\u30de\u30ea \u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30bb\u30ab\u30f3\u30c0\u30ea \u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u308b\u305f\u3081\u3001\u52b9\u7387\u7684\u306a\u96fb\u5b50\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u67d4\u8edf\u306a\u69cb\u6210:<\/strong> MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u5909\u66f4\u306b\u5bfe\u5fdc\u3057\u305f\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u30d7\u30e9\u30a4\u30de\u30ea DNS \u69cb\u6210\u3092\u5909\u66f4\u305b\u305a\u306b\u96fb\u5b50\u30e1\u30fc\u30eb \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u5207\u308a\u66ff\u3048\u305f\u308a\u3059\u308b\u305f\u3081\u306b\u7c21\u5358\u306b\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>DNS MX\u30ec\u30b3\u30fc\u30c9\u306e\u7a2e\u985e<\/h2>\n<p>DNS MX \u30ec\u30b3\u30fc\u30c9\u306b\u306f\u4e3b\u306b 2 \u3064\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30d7\u30e9\u30a4\u30de\u30eaMX\u30ec\u30b3\u30fc\u30c9:<\/strong> \u30d7\u30e9\u30a4\u30de\u30ea MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3059\u308b\u30e1\u30a4\u30f3 \u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u512a\u5148\u5ea6\u5024\u304c\u6700\u3082\u4f4e\u304f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\u8a66\u884c\u3055\u308c\u308b\u6700\u521d\u306e\u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7MX\u30ec\u30b3\u30fc\u30c9:<\/strong> \u30d0\u30c3\u30af\u30a2\u30c3\u30d7 MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea \u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u304c\u5229\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7 MX \u30ec\u30b3\u30fc\u30c9\u306f\u512a\u5148\u5ea6\u304c\u9ad8\u304f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af \u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u6b21\u306e\u8868\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u300cexample.com\u300d\u306e MX \u30ec\u30b3\u30fc\u30c9\u306e\u4f8b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u597d\u307f<\/th>\n<th>\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>10<\/td>\n<td>\u30e1\u30fc\u30eb<\/td>\n<\/tr>\n<tr>\n<td>20<\/td>\n<td>\u30d0\u30c3\u30af\u30a2\u30c3\u30d71.example.com<\/td>\n<\/tr>\n<tr>\n<td>30<\/td>\n<td>\u30d0\u30c3\u30af\u30a2\u30c3\u30d72.example.com<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS MX\u30ec\u30b3\u30fc\u30c9\u306e\u4f7f\u7528\u65b9\u6cd5\u3001\u554f\u984c\u3001\u304a\u3088\u3073\u305d\u306e\u89e3\u6c7a\u7b56<\/h2>\n<p>DNS MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u9069\u5207\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u30e1\u30fc\u30eb \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u6b21\u306e\u3088\u3046\u306a\u4e00\u822c\u7684\u306a\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>MX \u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u30df\u30b9:<\/strong> \u30c9\u30e1\u30a4\u30f3\u306e MX \u30ec\u30b3\u30fc\u30c9\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3067\u304d\u305a\u3001\u901a\u4fe1\u306e\u554f\u984c\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u7ba1\u7406\u8005\u306f\u3001\u8aa4\u3063\u305f\u69cb\u6210\u3092\u907f\u3051\u308b\u305f\u3081\u306b DNS \u8a2d\u5b9a\u3092\u518d\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0:<\/strong> \u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u304c\u30c0\u30a6\u30f3\u3057\u305f\u308a\u3001\u30a2\u30af\u30bb\u30b9\u4e0d\u80fd\u306b\u306a\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u304c\u5931\u6557\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5197\u9577\u30d0\u30c3\u30af\u30a2\u30c3\u30d7 MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30e1\u30fc\u30eb\u3092\u4ee3\u66ff\u30b5\u30fc\u30d0\u30fc\u306b\u8ee2\u9001\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u554f\u984c\u3092\u8efd\u6e1b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u904e\u8ca0\u8377:<\/strong> \u5927\u91cf\u306e\u96fb\u5b50\u30e1\u30fc\u30eb \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u3088\u308a\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u304c\u904e\u8ca0\u8377\u306b\u306a\u308a\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u304c\u9045\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u8907\u6570\u306e\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u9593\u3067\u8ca0\u8377\u3092\u5206\u6563\u3059\u308b\u3068\u3001\u8ca0\u8377\u304c\u5747\u7b49\u306b\u5206\u6563\u3055\u308c\u3001\u52b9\u7387\u7684\u306a\u96fb\u5b50\u30e1\u30fc\u30eb\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03<\/h2>\n<p>DNS MX \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u69cb\u6210\u3067\u7570\u306a\u308b\u5f79\u5272\u3092\u679c\u305f\u3059\u4ed6\u306e DNS \u30ea\u30bd\u30fc\u30b9 \u30ec\u30b3\u30fc\u30c9\u3068\u6bd4\u8f03\u3055\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30ec\u30b3\u30fc\u30c9\uff1a<\/strong> A \u30ec\u30b3\u30fc\u30c9\u306f\u30c9\u30e1\u30a4\u30f3\u540d\u3092 IP \u30a2\u30c9\u30ec\u30b9\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3001\u4e3b\u306b Web \u30b5\u30a4\u30c8\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u4e00\u65b9\u3001MX \u30ec\u30b3\u30fc\u30c9\u306f\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u96fb\u5b50\u30e1\u30fc\u30eb\u4ea4\u63db\u3092\u62c5\u5f53\u3059\u308b\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>CNAME\u30ec\u30b3\u30fc\u30c9:<\/strong> CNAME \u30ec\u30b3\u30fc\u30c9\u306f\u30c9\u30e1\u30a4\u30f3\u306e\u30a8\u30a4\u30ea\u30a2\u30b9\u3092\u63d0\u4f9b\u3057\u3001\u8907\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u540c\u3058\u5834\u6240\u3092\u6307\u3059\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001MX \u30ec\u30b3\u30fc\u30c9\u306f\u96fb\u5b50\u30e1\u30fc\u30eb \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u56fa\u6709\u306e\u3082\u306e\u3067\u3042\u308a\u3001\u30a8\u30a4\u30ea\u30a2\u30b9\u306b\u306f\u4f7f\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>DNS MX\u30ec\u30b3\u30fc\u30c9\u306b\u95a2\u3059\u308b\u4eca\u5f8c\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u304c\u9032\u5316\u3057\u7d9a\u3051\u308b\u4e2d\u3001DNS MX \u30ec\u30b3\u30fc\u30c9\u306f\u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u306e\u91cd\u8981\u306a\u8981\u7d20\u3067\u3042\u308a\u7d9a\u3051\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u96fb\u5b50\u30e1\u30fc\u30eb \u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u9032\u6b69\u306b\u3088\u308a\u3001MX \u30ec\u30b3\u30fc\u30c9\u306e\u5229\u7528\u65b9\u6cd5\u3068\u69cb\u6210\u65b9\u6cd5\u304c\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u96fb\u5b50\u30e1\u30fc\u30eb\u306e DNS \u30d9\u30fc\u30b9\u8a8d\u8a3c (DANE) \u3068\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 (TLS) \u306f\u3001MX \u30ec\u30b3\u30fc\u30c9\u3068\u9023\u643a\u3057\u3066\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u65b0\u3057\u3044\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u4f8b\u3067\u3059\u3002<\/p>\n<h2>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u4f7f\u7528\u65b9\u6cd5\u3084 DNS MX \u30ec\u30b3\u30fc\u30c9\u3068\u306e\u95a2\u9023\u4ed8\u3051\u65b9\u6cd5<\/h2>\n<p>OneProxy (oneproxy.pro) \u304c\u63d0\u4f9b\u3059\u308b\u3088\u3046\u306a\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u7279\u5b9a\u306e\u30b7\u30ca\u30ea\u30aa\u3067 DNS MX \u30ec\u30b3\u30fc\u30c9\u306b\u95a2\u9023\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001MX \u30ec\u30b3\u30fc\u30c9\u3067\u6307\u5b9a\u3055\u308c\u305f\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u306b\u5230\u9054\u3059\u308b\u524d\u306b\u3001\u96fb\u5b50\u30e1\u30fc\u30eb \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u508d\u53d7\u3057\u3066\u51e6\u7406\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3001\u307e\u305f\u306f\u8ca0\u8377\u5206\u6563\u6a5f\u80fd\u304c\u5f37\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u7d44\u7e54\u306f\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u9001\u4fe1\u30e1\u30fc\u30eb \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u96c6\u4e2d\u30b7\u30b9\u30c6\u30e0\u7d4c\u7531\u3067\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u30b9\u30ad\u30e3\u30f3\u3001\u30c7\u30fc\u30bf\u640d\u5931\u9632\u6b62\u3001\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9 \u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u30e1\u30fc\u30eb \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306b\u7d44\u307f\u8fbc\u3080\u5834\u5408\u306f\u3001\u9069\u5207\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b MX \u30ec\u30b3\u30fc\u30c9\u3092\u614e\u91cd\u306b\u69cb\u6210\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>DNS MX \u30ec\u30b3\u30fc\u30c9\u3068\u95a2\u9023\u30c8\u30d4\u30c3\u30af\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc5321\" target=\"_new\" rel=\"noopener nofollow\">RFC 5321 \u2013 \u30b7\u30f3\u30d7\u30eb\u30e1\u30fc\u30eb\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc7505\" target=\"_new\" rel=\"noopener nofollow\">RFC 7505 \u2013 \u30e1\u30fc\u30eb\u3092\u53d7\u3051\u4ed8\u3051\u306a\u3044\u30c9\u30e1\u30a4\u30f3\u306e\u300cNull MX\u300d\u30b5\u30fc\u30d3\u30b9\u306a\u3057\u30ea\u30bd\u30fc\u30b9\u30ec\u30b3\u30fc\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/dns\/dns-records\/dns-mx-record\/\" target=\"_new\" rel=\"noopener nofollow\">MX \u30ec\u30b3\u30fc\u30c9\u306e\u7406\u89e3 (\u30ca\u30ec\u30c3\u30b8 \u30d9\u30fc\u30b9\u8a18\u4e8b)<\/a><\/li>\n<\/ul>","protected":false},"featured_media":476905,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476904","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>DNS MX Record: A Comprehensive Guide<\/mark>","faq_items":[{"question":"What is a DNS MX record, and why is it important?","answer":"<p>A DNS MX record, short for Mail Exchange record, is a critical element in email communication. It is a resource record in the DNS zone file that directs emails to the appropriate mail servers responsible for handling incoming messages for a particular domain. MX records are essential because they ensure efficient and reliable email delivery, allowing emails to reach their intended recipients without getting lost in the vast expanse of the internet.<\/p>"},{"question":"How does a DNS MX record work?","answer":"<p>The DNS MX record works by associating a domain name with one or more mail servers. When an email is sent to a recipient's address, the sending mail server queries the DNS for the recipient's domain MX records. Based on the preference values assigned to each MX record, the sending server connects to the corresponding mail servers and attempts to deliver the email. If the primary mail server is unavailable, backup MX records act as fallback options, ensuring uninterrupted email delivery.<\/p>"},{"question":"What are the types of DNS MX records?","answer":"<p>There are two main types of DNS MX records:<\/p><ol><li><p>Primary MX Record: The primary MX record designates the main mail server responsible for receiving emails for the domain. It has the lowest preference value and is the first server attempted for email delivery.<\/p><\/li><li><p>Backup MX Record: Backup MX records have higher preference values and act as secondary options for email delivery. They come into play when the primary mail server is unavailable.<\/p><\/li><\/ol>"},{"question":"How can I use DNS MX records effectively, and what problems might I encounter?","answer":"<p>To use DNS MX records effectively, ensure correct configuration with appropriate preference values and FQDNs for your mail servers. Set up redundant backup MX records to handle potential mail server downtime and enable load balancing for high email traffic. Common issues that may arise include misconfigured MX records, which can result in email delivery failures. To avoid problems, double-check DNS settings, verify FQDNs, and ensure mail servers are operational.<\/p>"},{"question":"How does a proxy server relate to DNS MX records?","answer":"<p>Proxy servers, like OneProxy (oneproxy.pro), can be associated with DNS MX records in specific scenarios. Proxy servers intercept and handle email traffic before it reaches the designated mail servers. This association allows for additional security measures, content filtering, or load balancing in email communication. Organizations may use proxy servers to route outgoing email traffic for improved email management and protection.<\/p>"},{"question":"What are the future perspectives and technologies related to DNS MX records?","answer":"<p>While DNS MX records will continue to be integral to email communication, advancements in email protocols and security technologies may influence their use. Technologies like DNS-based Authentication of Named Entities (DANE) and Transport Layer Security (TLS) for email could interact with MX records to enhance email security and encryption, offering increased protection against cyber threats.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476904","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476904\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/476905"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476904"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}