![\"\u30e1\u30fc\u30eb\u95a2\u9023\u306eRFC\"](\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2018\/10\/74585303_S.jpg\")
<\/p>\n<\/p>\n
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MIME\u306fASCII\u6587\u5b57\u306e\u307f\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3057\u304b\u6271\u3048\u306a\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u5f62\u5f0f\u3092\u62e1\u5f35\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u4ed5\u69d8\u3067\u3059\u3002MIME\u306b\u3088\u308a\u3001\u672c\u6587\u3092\u8907\u6570\u306e\u9818\u57df\u306b\u5206\u5272\u3057\u3066\u3001HTML\u3084\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u6271\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3055\u3089\u306b\u3001base64<\/a>\u3084quoted-printable<\/a>\u306a\u3069\u3001\u975eASCII\u6587\u5b57\uff08\u3084\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\uff09\u3068ASCII\u6587\u5b57\u306e\u76f8\u4e92\u5909\u63db\u65b9\u5f0f\u3082\u5b9a\u3081\u3089\u308c\u307e\u3057\u305f\u3002\u95a2\u9023\u3059\u308bRFC\u306fPart 1\uff5e5\u307e\u3067\u8907\u6570\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u5206\u5272\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u3046\u3061\u30e1\u30c3\u30bb\u30fc\u30b8\u5f62\u5f0f\u306b\u76f4\u63a5\u95a2\u4fc2\u3059\u308b\u3082\u306e\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n ISO-2022-JP\uff08\u65e7\u79f0\u3001JUNET\u30b3\u30fc\u30c9\uff09\u306f\u3001MIME\u306b\u304a\u3051\u308b\u975eASCII\u6587\u5b57\u3092\u6271\u3046\u65b9\u6cd5\u3068\u306f\u5225\u306b\u30017bit\u6587\u5b57\u306e\u7bc4\u56f2\u3067\u65e5\u672c\u8a9e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u8003\u3048\u3089\u308c\u305f\u3082\u306e\u3067\u3001\u300cInformational<\/a>\u300d\u3068\u3057\u3066\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n \u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6700\u8fd1\u3067\u306fSPF\u3001DKIM\u3001DMARC\u306b\u96c6\u7d04\u3055\u308c\u3064\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n \u8ff7\u60d1\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u306a\u3044\u3001\u3082\u3057\u304f\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u88ab\u5bb3\u3092\u53d7\u3051\u306a\u3044\u305f\u3081\u306b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u5074\u3067\u3067\u304d\u308b\u5bfe\u7b56\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002\u30e1\u30fc\u30eb\u3092\u5927\u91cf\u9001\u4fe1\u3059\u308b\u969b\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306b\u9593\u9055\u308f\u308c\u308b\u3088\u3046\u306a\u9001\u4fe1\u6319\u52d5\u3092\u907f\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u3093\u306a\u6642\u306f\u3053\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u304c\u53c2\u8003\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n \u3044\u304b\u304c\u3060\u3063\u305f\u3067\u3057\u3087\u3046\u304b\uff1f\u4e00\u898b\u3001\u3068\u3063\u3064\u304d\u306b\u304f\u3044RFC\u3067\u3059\u304c\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u660e\u5feb\u306a\u6587\u7ae0\u304c\u591a\u3044\u305f\u3081\u610f\u5916\u3068\u8aad\u307f\u3084\u3059\u304b\u3063\u305f\u308a\u3082\u3057\u307e\u3059\u3002\u5168\u90e8\u8aad\u3080\u306e\u306f\u3068\u3066\u3082\u5927\u5909\u306a\u306e\u3067\u304a\u52e7\u3081\u3057\u307e\u305b\u3093\u304c\u3001\u6c17\u306b\u306a\u308b\u7b87\u6240\u304c\u3042\u3063\u305f\u3089\u30c1\u30e9\u30c3\u3068\u76ee\u3092\u901a\u3057\u3066\u307f\u308b\u306e\u3082\u3044\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u30b5\u30dd\u30fc\u30c8\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u4f50\u85e4\uff08@awwa500\uff09\u3067\u3059\u3002 \u30e1\u30fc\u30eb\u306b\u306f\u9577\u3044\u6b74\u53f2\u304c\u3042\u308b\u305f\u3081\u3001\u95a2\u9023\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6a19\u6e96\uff08RFC\uff09\u3082\u6570\u591a\u304f\u5b58\u5728\u3057\u307e\u3059\u3002\u305d\u3053\u3067\u4eca\u56de\u306f\u3001\u30e1\u30fc\u30eb\u95a2\u9023\u3067\u7279\u306b\u91cd\u8981\u306aRFC\u203b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u666e\u6bb5\u3001\u30e1\u30fc\u30eb\u306e\u904b\u7528\u3092\u3057 …\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":4,"featured_media":10610,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11],"tags":[],"class_list":["post-10609","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\/10609","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10609"}],"version-history":[{"count":5,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10609\/revisions"}],"predecessor-version":[{"id":13519,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10609\/revisions\/13519"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/10610"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u30e1\u30fc\u30eb\u306b\u306f\u9577\u3044\u6b74\u53f2\u304c\u3042\u308b<\/a>\u305f\u3081\u3001\u95a2\u9023\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6a19\u6e96\uff08RFC\uff09\u3082\u6570\u591a\u304f\u5b58\u5728\u3057\u307e\u3059\u3002\u305d\u3053\u3067\u4eca\u56de\u306f\u3001\u30e1\u30fc\u30eb\u95a2\u9023\u3067\u7279\u306b\u91cd\u8981\u306aRFC\u203b<\/sup>\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u666e\u6bb5\u3001\u30e1\u30fc\u30eb\u306e\u904b\u7528\u3092\u3057\u3066\u3044\u3066\u3082RFC\u3092\u8aad\u3080\u6a5f\u4f1a\u306f\u307b\u3068\u3093\u3069\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u6319\u52d5\u306b\u7591\u554f\u304c\u751f\u3058\u305f\u5834\u5408\u306e\u62e0\u308a\u6240\u3068\u306a\u308b\u60c5\u5831\u3067\u3059\u306e\u3067\u3001\u4e3b\u306aRFC\u3068\u305d\u306e\u6982\u8981\u3092\u628a\u63e1\u3057\u3066\u304a\u304f\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306a\u3069\u306e\u5f79\u306b\u7acb\u3064\u3053\u3068\u304c\u3042\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\nSMTP\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u5f62\u5f0f<\/h3>\n
\n
\n\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u9593\u306b\u304a\u3051\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8ee2\u9001\u65b9\u5f0f\u3092\u5b9a\u3081\u305f\u6a19\u6e96\u4ed5\u69d8\u3067\u3059\u3002SMTP\u30b5\u30fc\u30d0\u304c\u53d7\u3051\u4ed8\u3051\u308bSMTP\u30b3\u30de\u30f3\u30c9<\/a>\u3084\u3001SMTP\u30b5\u30fc\u30d0\u304c\u8fd4\u3059\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9<\/a>\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u7d4c\u7531\u3057\u305f\u30db\u30b9\u30c8\u306e\u30c8\u30ec\u30fc\u30b9\u60c5\u5831\u306e\u8a18\u9332\u65b9\u6cd5<\/a>\u306a\u3069\u304c\u5b9a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n
\n\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u9593\u3067\u3084\u308a\u53d6\u308a\u3055\u308c\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u5f62\u5f0f\u3092\u5b9a\u3081\u305f\u6a19\u6e96\u4ed5\u69d8\u3067\u3059\u3002\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5f62\u5f0f<\/a>\u3084\u3001\u304a\u306a\u3058\u307f\u306eTo\u3084Cc\u306a\u3069\u306e\u30d8\u30c3\u30c0\u304c\u5b9a\u7fa9<\/a>\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306eRFC\u3067\u306f\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u4f7f\u3048\u308b\u6587\u5b57\u5217\u306fASCII\u6587\u5b57\uff08\u3044\u308f\u3086\u308b7bit\u6587\u5b57\uff09\u306e\u307f<\/a>\u3068\u5b9a\u3081\u3089\u308c\u3066\u304a\u308a\u3001\u305d\u306e\u307e\u307e\u3067\u306f\u65e5\u672c\u8a9e\u304c\u6271\u3048\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u5f8c\u8ff0\u3059\u308bMIME\u306b\u3088\u3063\u3066\u3055\u307e\u3056\u307e\u306a\u62e1\u5f35\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\nMIME(Multipurpose Internet Mail Extensions)<\/h3>\n
\n
ISO-2022-JP<\/h3>\n
\n
\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c<\/h3>\n
\n
\n\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304c\u3001\u3042\u3089\u304b\u3058\u3081\u5ba3\u8a00\u3055\u308c\u305f\u30db\u30b9\u30c8\u3068\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/li>\n
\n\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3066\u3001\u9001\u4fe1\u8005\u304c\u516c\u958b\u3059\u308b\u516c\u958b\u9375\u3067\u305d\u306e\u96fb\u5b50\u7f72\u540d\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u6539\u3056\u3093\u691c\u77e5\u3092\u884c\u3046\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/li>\n
\nSPF\u3068DKIM\u306e\u691c\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u6271\u3044\u3092\u5b9a\u3081\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/li>\n<\/ul>\n\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56<\/h3>\n
\n
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