{"id":8839,"date":"2025-03-04T21:37:28","date_gmt":"2025-03-04T20:37:28","guid":{"rendered":"https:\/\/webhosting.de\/e-mail-authentifizierung-spf-dkim-dmarc\/"},"modified":"2025-03-04T21:37:28","modified_gmt":"2025-03-04T20:37:28","slug":"%e9%9b%bb%e5%ad%90%e3%83%a1%e3%83%bc%e3%83%ab%e8%aa%8d%e8%a8%bc-spf-dkim-dmarc","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/e-mail-authentifizierung-spf-dkim-dmarc\/","title":{"rendered":"\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\uff1aSPF\u3001DKIM\u3001DMARC\u306e\u8aac\u660e"},"content":{"rendered":"

\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u5165\u9580<\/h2>
\n\u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u304c\u4e2d\u5fc3\u7684\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u4eca\u65e5\u306e\u30c7\u30b8\u30bf\u30eb\u4e16\u754c\u3067\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u4fe1\u6191\u6027\u304c\u6700\u3082\u91cd\u8981\u3067\u3059\u3002SPF\u3001DKIM\u3001DMARC\u306b\u3088\u308b\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u96fb\u5b50\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u57fa\u76e4\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6280\u8853\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3057\u3001\u8a50\u6b3a\u3084\u30b9\u30d1\u30e0\u304b\u3089\u53d7\u4fe1\u8005\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u9023\u643a\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u7d44\u7e54\u306f\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u3001\u9867\u5ba2\u306e\u4fe1\u983c\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>
\n\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u304c\u5b9f\u969b\u306b\u6307\u5b9a\u3055\u308c\u305f\u9001\u4fe1\u8005\u304b\u3089\u767a\u4fe1\u3055\u308c\u305f\u3082\u306e\u3067\u3042\u308a\u3001\u53d7\u4fe1\u8005 \u306b\u5c4a\u304f\u307e\u3067\u306b\u64cd\u4f5c\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u3068\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u69cb\u6210\u3055\u308c\u308b\u3002\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e3\u672c\u67f1\u306f\u3001SPF\uff08Sender Policy Framework\uff09\u3001DKIM\uff08DomainKeys Identified Mail\uff09\u3001DMARC\uff08Domain-based Message Authentication, Reporting and Conformance\uff09\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u76f8\u4e57\u7684\u306b\u6a5f\u80fd\u3057\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u8a50\u6b3a\u306b\u5bfe\u3059\u308b\u5f37\u56fa\u306a\u9632\u5fa1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n

\u9001\u4fe1\u8005\u30dd\u30ea\u30b7\u30fc\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\uff08SPF\uff09<\/h2>
\nSPF\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u304c\u3001\u81ea\u5206\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u4ee3\u308f\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u6a29\u9650\u3092\u6301\u3064\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u30b2\u30b9\u30c8\u30ea\u30b9\u30c8\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u7121\u8a31\u53ef\u306e\u4eba\u304c\u3042\u306a\u305f\u306e\u540d\u524d\u3067\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002<\/p>\n

SPF\u306e\u4ed5\u7d44\u307f<\/h3>
\n1. \u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306f\u3001\u81ea\u5206\u306e\u30c9\u30e1\u30a4\u30f3\u306eDNS\u8a2d\u5b9a\u306bSPF\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u4f5c\u6210\u3059\u308b\u3002
\n2. \u3053\u306e\u30a8\u30f3\u30c8\u30ea\u306f\u3001\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306eIP\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u30db\u30b9\u30c8\u540d\u3092\u30ea\u30b9\u30c8\u3059\u308b\u3002
\n3. \u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u3068\u3001\u9001\u4fe1\u8005\u30c9\u30e1\u30a4\u30f3\u306eSPF\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002
\n4.\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u304cSPF\u30a8\u30f3\u30c8\u30ea\u30fc\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3068\u4e00\u81f4\u3059\u308c\u3070\u3001\u305d\u306e\u30e1\u30fc\u30eb\u306f\u672c\u7269\u3067\u3042\u308b\u3068\u307f\u306a\u3055\u308c\u308b\u3002<\/p>\n

SPF\u306e\u5229\u70b9<\/h3>
\n- \u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u9632\u6b62\uff1a\u507d\u30e1\u30fc\u30eb\u306b\u3088\u308b\u60aa\u7528\u304b\u3089\u30c9\u30e1\u30a4\u30f3\u3092\u5b88\u308a\u307e\u3059\u3002
\n- \u6b63\u5f53\u306aE\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u53ef\u80fd\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\uff1a\u3042\u306a\u305f\u306eE\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3067\u306f\u306a\u304f\u3001\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u5165\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002
\n- \u30c9\u30e1\u30a4\u30f3\u304c\u30b9\u30d1\u30e0\u306b\u60aa\u7528\u3055\u308c\u308b\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3057\u307e\u3059\uff1a\u4f01\u696d\u306e\u8a55\u5224\u3092\u5b88\u308a\u307e\u3059\u3002<\/p>\n

SPF\u30a8\u30f3\u30c8\u30ea\u30fc\u306e\u4f8b<\/h3>
\nv=spf1 ip4:192.0.2.0\/24 include:_spf.google.com ~all<\/p>\n

\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306f\u3001192.0.2.0\/24\u306e\u7bc4\u56f2\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068Google\u306eSPF\u30a8\u30f3\u30c8\u30ea\u30fc\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u672b\u5c3e\u306e~all\u306f\u3001\u4ed6\u306e\u9001\u4fe1\u5143\u304b\u3089\u306e\u30e1\u30fc\u30eb\u306f\u30bd\u30d5\u30c8\u30d5\u30a7\u30fc\u30eb\u3068\u3057\u3066\u30de\u30fc\u30af\u3055\u308c\u308b\u3079\u304d\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n

\u30c9\u30e1\u30a4\u30f3\u30ad\u30fc\u8b58\u5225\u30e1\u30fc\u30eb\uff08DKIM\uff09<\/h2>
\nDKIM\u306f\u3001\u96fb\u5b50\u7f72\u540d\u3092\u4f7f\u7528\u3057\u3066\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u3092\u78ba\u8a8d\u3059\u308b\u8a8d\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u5185\u5bb9\u304c\u9001\u4fe1\u4e2d\u306b\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u3001\u3055\u3089\u306a\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5c64\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n

DKIM\u306e\u4ed5\u7d44\u307f<\/h3>
\n1. \u9001\u4fe1\u8005\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304c\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u30c7\u30b8\u30bf\u30eb\u7f72\u540d\u3092\u8ffd\u52a0\u3059\u308b\u3002
\n2. \u3053\u306e\u7f72\u540d\u306f\u3001\u9001\u4fe1\u8005\u306e\u307f\u304c\u77e5\u3063\u3066\u3044\u308b\u79d8\u5bc6\u9375\u3067\u4f5c\u6210\u3055\u308c\u308b\u3002
\n3. \u516c\u958b\u9375\u306f\u3001\u9001\u4fe1\u8005\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30ec\u30b3\u30fc\u30c9\u3067\u516c\u958b\u3055\u308c\u308b\u3002
\n4. \u53d7\u4fe1\u5074\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u30fb\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u516c\u958b\u9375\u3092\u4f7f\u3063\u3066\u7f72\u540d\u3092\u691c\u8a3c\u3059\u308b\u3002
\n5. \u7f72\u540d\u304c\u6b63\u3057\u3051\u308c\u3070\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306f\u771f\u6b63\u3067\u3042\u308a\u3001\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u307f\u306a\u3055\u308c\u308b\u3002<\/p>\n

DKIM\u306e\u5229\u70b9<\/h3>
\n- \u30e1\u30fc\u30eb\u5185\u5bb9\u306e\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\uff1a\u4e0d\u6b63\u306a\u5909\u66f4\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002
\n- \u4e2d\u9593\u8005\u653b\u6483\u306e\u9632\u6b62\uff1a\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306e\u9593\u306e\u901a\u4fe1\u3092\u4fdd\u8b77\u3059\u308b\u3002
\n- \u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u304b\u3089\u306e\u9001\u4fe1\u8005\u306e\u8a55\u4fa1\u304c\u5411\u4e0a\u3057\u307e\u3059\uff1a\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002<\/p>\n

DKIM\u30a8\u30f3\u30c8\u30ea\u30fc\u306e\u4f8b<\/h3>
\nv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3QEKyU1fSo6...<\/p>\n

\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u306b\u306f\u3001DKIM\u7f72\u540d\u306e\u691c\u8a3c\u306b\u4f7f\u308f\u308c\u308b\u516c\u958b\u9375\u304c\u542b\u307e\u308c\u308b\u3002<\/p>\n

\u30c9\u30e1\u30a4\u30f3\u30d9\u30fc\u30b9\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u8a8d\u8a3c\u3001\u5831\u544a\u3001\u9069\u5408\u6027\uff08DMARC\uff09<\/h2>
\nDMARC\u306f\u3001SPF\u304a\u3088\u3073DKIM\u3092\u57fa\u790e\u3068\u3057\u3001\u3053\u308c\u3089\u306e\u8a8d\u8a3c\u65b9\u6cd5\u306b\u5931\u6557\u3057\u305f\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u6307\u5b9a\u3059\u308b\u30dd\u30ea\u30b7\u30fc\u3092\u8ffd\u52a0\u3059\u308b\u3002\u307e\u305f\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u3053\u3068\u3092\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306b\u77e5\u3089\u305b\u308b\u30ec\u30dd\u30fc\u30c8\u6a5f\u80fd\u3082\u63d0\u4f9b\u3059\u308b\u3002<\/p>\n

DMARC\u306e\u4ed5\u7d44\u307f<\/h3>
\n1. \u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306f\u3001DNS\u30ec\u30b3\u30fc\u30c9\u3067DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u516c\u958b\u3059\u308b\u3002
\n2 \u3053\u306e\u30dd\u30ea\u30b7\u30fc\u306f\u3001SPF\u307e\u305f\u306fDKIM\u3092\u901a\u904e\u3057\u306a\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304c\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3059\u3079\u304d\u304b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002
\n3.\u30dd\u30ea\u30b7\u30fc\u306f\u3001\u305d\u306e\u3088\u3046\u306a\u96fb\u5b50\u30e1\u30fc\u30eb\u3092\u62d2\u5426\u3001\u9694\u96e2\u3001\u307e\u305f\u306f\u305d\u308c\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u914d\u4fe1\u3059\u308b\u3088\u3046\u306b\u6307\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n4 DMARC\u306f\u307e\u305f\u3001\u5931\u6557\u3057\u305f\u8a8d\u8a3c\u306b\u95a2\u3059\u308b\u30ec\u30dd\u30fc\u30c8\u3092\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306b\u9001\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002<\/p>\n

DMARC\u306e\u5229\u70b9<\/h3>
\n- \u8a8d\u8a3c\u3055\u308c\u3066\u3044\u306a\u3044\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u5bfe\u3059\u308b\u660e\u78ba\u306a\u6307\u793a\u3092\u63d0\u4f9b\u3059\u308b\u3002
\n- \u8a8d\u8a3c\u306e\u554f\u984c\u3084\u4e0d\u6b63\u4f7f\u7528\u306e\u53ef\u80fd\u6027\u3092\u628a\u63e1\u3057\u3001\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u76e3\u8996\u3068\u6539\u5584\u306b\u5f79\u7acb\u3066\u307e\u3059\u3002
\n- \u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u304b\u3089\u306e\u4fdd\u8b77\uff1a\u8a50\u6b3a\u304c\u6210\u529f\u3059\u308b\u53ef\u80fd\u6027\u304c\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

DMARC\u30a8\u30f3\u30c8\u30ea\u30fc\u306e\u4f8b<\/h3>
\nv=DMARC1; p=quarantine; rua=mailto:dmarc-reports@example.com<\/p>\n

\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u306f\u3001SPF\u307e\u305f\u306fDKIM\u3092\u901a\u904e\u3057\u306a\u3044\u96fb\u5b50\u30e1\u30fc\u30eb\u3092\u9694\u96e2\u3057\u3001\u6307\u5b9a\u3055\u308c\u305f\u96fb\u5b50\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u30ec\u30dd\u30fc\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3088\u3046\u306b\u96fb\u5b50\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u6307\u793a\u3057\u307e\u3059\u3002<\/p>\n

SPF\u3001DKIM\u3001DMARC\u306e\u5b9f\u88c5<\/h2>
\n\u3053\u308c\u3089\u306e\u8a8d\u8a3c\u65b9\u6cd5\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306eDNS\u8a2d\u5b9a\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u57fa\u672c\u7684\u306a\u624b\u9806\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n

SPF\u306e\u8a2d\u5b9a<\/h3>
\n- DNS\u8a2d\u5b9a\u306bTXT\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u4f5c\u6210\u3059\u308b\u3002
\n- \u30c9\u30e1\u30a4\u30f3\u306e\u627f\u8a8d\u6e08\u307f\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002
\n- SPF\u30a8\u30f3\u30c8\u30ea\u30fc\u306e\u4f8b: v=spf1 ip4:192.0.2.0\/24 include:_spf.google.com ~all<\/p>\n

DKIM\u306e\u8a2d\u5b9a<\/h3>
\n- \u516c\u958b\u9375\u3068\u79d8\u5bc6\u9375\u306e\u30da\u30a2\u3092\u751f\u6210\u3059\u308b\u3002
\n- \u516c\u958b\u9375\u3092TXT\u30a8\u30f3\u30c8\u30ea\u3068\u3057\u3066DNS\u8a2d\u5b9a\u306b\u8ffd\u52a0\u3059\u308b\u3002
\n- \u79d8\u5bc6\u9375\u3092\u4f7f\u3063\u3066\u9001\u4fe1\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u7f72\u540d\u3059\u308b\u3088\u3046\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u30fb\u30b5\u30fc\u30d0\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n

DMARC\u306e\u5c0e\u5165<\/h3>
\n- DNS\u8a2d\u5b9a\u306bDMARC\u30a8\u30f3\u30c8\u30ea\u3092\u4f5c\u6210\u3059\u308b\u3002
\n- \u8a8d\u8a3c\u3055\u308c\u3066\u3044\u306a\u3044\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u5bfe\u51e6\u3059\u308b\u30dd\u30ea\u30b7\u30fc\u3092\u5b9a\u7fa9\u3059\u308b\u3002
\n- \u30ec\u30dd\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306b\u95a2\u3059\u308b\u6d1e\u5bdf\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>
\nSPF\u3001DKIM\u3001DMARC\u306e\u52b9\u679c\u3092\u6700\u5927\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u4f01\u696d\u306f\u4ee5\u4e0b\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u8003\u616e\u3059\u3079\u304d\u3067\u3042\u308b\uff1a<\/p>\n

1. \u7de9\u3044DMARC\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3(p=none)\u304b\u3089\u59cb\u3081\u3001\u5f90\u3005\u306b\u53b3\u3057\u304f\u3059\u308b\u3002
\n - \u3053\u308c\u306b\u3088\u308a\u3001\u5373\u5ea7\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u306a\u304f\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u7279\u5b9a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002
\n2. DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u5b9a\u671f\u7684\u306b\u76e3\u8996\u3057\u3001\u554f\u984c\u3092\u65e9\u671f\u306b\u767a\u898b\u3059\u308b\u3002
\n - \u30ec\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u30bd\u30fc\u30b9\u3092\u7279\u5b9a\u3057\u3001\u4e0d\u6b63\u4f7f\u7528\u3092\u76e3\u8996\u3057\u307e\u3059\u3002
\n3.\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u304c\u3059\u3079\u3066SPF\u30ec\u30b3\u30fc\u30c9\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002
\n - \u3053\u308c\u306b\u3088\u308a\u3001\u91cd\u8981\u306a\u30e1\u30fc\u30eb\u304c\u610f\u56f3\u305b\u305a\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002
\n4. DKIM\u30ad\u30fc\u306b\u306f\u5f37\u529b\u306a\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3057\u3001\u5b9a\u671f\u7684\u306b\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3059\u308b\u3002
\n - \u5b9a\u671f\u7684\u306a\u30ad\u30fc\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u9ad8\u3081\u307e\u3059\u3002
\n5. DMARC Analyser\u3084dmarcian\u306a\u3069\u306e\u30c4\u30fc\u30eb\u3067\u8a2d\u5b9a\u3092\u30c6\u30b9\u30c8\u3059\u308b\u3002
\n - \u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u3001\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u6700\u9069\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n

\u5b9f\u65bd\u4e0a\u306e\u8ab2\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56<\/h2>
\n\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u8ab2\u984c\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u3088\u304f\u3042\u308b\u554f\u984c\u3068\u8003\u3048\u3089\u308c\u308b\u89e3\u6c7a\u7b56\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n

\u8ee2\u9001\u304a\u3088\u3073\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u306e\u53d6\u308a\u6271\u3044<\/h3>
\n\u8ee2\u9001\u3084\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u306f\u3001\u5143\u306e\u9001\u4fe1\u8005\u30a2\u30c9\u30ec\u30b9\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001SPF\u3084DKIM\u306e\u30c1\u30a7\u30c3\u30af\u306b\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n

\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u30a2\u30d7\u30ed\u30fc\u30c1
\n- \u8ee2\u9001\u306bSRS(Sender Rewriting Scheme)\u3092\u4f7f\u7528\uff1aSRS\u306fSPF\u30c1\u30a7\u30c3\u30af\u3092\u30d1\u30b9\u3059\u308b\u305f\u3081\u306b\u9001\u4fe1\u8005\u30a2\u30c9\u30ec\u30b9\u3092\u9069\u5408\u3055\u305b\u308b\u3002
\n- \u65e2\u77e5\u306e\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u306b\u5bfe\u3059\u308bDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u5fdc\uff1a\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u306b\u3088\u3063\u3066\u51e6\u7406\u3055\u308c\u308b\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u67d4\u8edf\u306a\u51e6\u7406\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002
\n- E\u30e1\u30fc\u30eb\u8ee2\u9001\u306e\u6b63\u3057\u3044\u53d6\u308a\u6271\u3044\u306b\u3064\u3044\u3066\u5f93\u696d\u54e1\u3092\u6559\u80b2\uff1a\u30e1\u30fc\u30eb\u8ee2\u9001\u6642\u306e\u610f\u56f3\u3057\u306a\u3044\u30df\u30b9\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30fb\u30b5\u30fc\u30d3\u30b9\u3068\u306e\u7d71\u5408<\/h3>
\n\u591a\u304f\u306e\u4f01\u696d\u306f\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3001\u30ab\u30b9\u30bf\u30de\u30fc\u30b5\u30fc\u30d3\u30b9\u3001\u305d\u306e\u4ed6\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306b\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30d7\u30ed\u30d0\u30a4\u30c0\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u3001SPF\u3068DKIM\u306b\u6b63\u3057\u304f\u7d71\u5408\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n

\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u30a2\u30d7\u30ed\u30fc\u30c1
\n- \u5404\u30b5\u30fc\u30d3\u30b9\u30fb\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306eSPF\u3068DKIM\u306e\u8981\u4ef6\u3092\u78ba\u8a8d\u3059\u308b\uff1a\u3059\u3079\u3066\u306e\u8a8d\u8a3c\u6e08\u307f\u30b5\u30fc\u30d0\u30fc\u304cSPF\u3068DKIM\u30ec\u30b3\u30fc\u30c9\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002
\n- \u30b5\u30fc\u30d3\u30b9\u30fb\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3068\u306e\u9023\u643a\uff1a\u30b5\u30fc\u30d3\u30b9\u30fb\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3068\u7dca\u5bc6\u306b\u9023\u643a\u3057\u3001\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u7d71\u5408\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/p>\n

\u4f01\u696d\u306b\u304a\u3051\u308b\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>
\nSPF\u3001DKIM\u3001DMARC\u306e\u5c0e\u5165\u306f\u3001\u4f01\u696d\u306b\u3068\u3063\u3066\u591a\u304f\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u3082\u305f\u3089\u3059\uff1a<\/p>\n

- \u30d6\u30e9\u30f3\u30c9\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4fdd\u8b77\uff1a\u8cb4\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4e0d\u6b63\u884c\u70ba\u306b\u60aa\u7528\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002
\n- \u30e1\u30fc\u30eb\u5230\u9054\u7387\u306e\u5411\u4e0a\uff1a\u8a8d\u8a3c\u3055\u308c\u305f\u30e1\u30fc\u30eb\u306f\u3001\u30b9\u30d1\u30e0\u30d5\u30a9\u30eb\u30c0\u3088\u308a\u3082\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u5165\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002
\n- \u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u306e\u524a\u6e1b\uff1a\u5fa1\u793e\u3092\u88c5\u3063\u305f\u60aa\u8cea\u306a\u30e1\u30fc\u30eb\u304b\u3089\u9867\u5ba2\u3084\u30d1\u30fc\u30c8\u30ca\u30fc\u3092\u5b88\u308a\u307e\u3059\u3002
\n- \u30b3\u30b9\u30c8\u524a\u6e1b\uff1a\u4e0d\u6b63\u884c\u70ba\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306b\u95a2\u9023\u3059\u308b\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3002<\/p>\n

\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u4eca\u5f8c\u306e\u5c55\u958b<\/h2>
\n\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306f\u3001\u65b0\u305f\u306a\u8105\u5a01\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306b\u5e38\u306b\u9032\u5316\u3057\u3066\u3044\u308b\u3002\u5c06\u6765\u306e\u30c8\u30ec\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n

- \u7570\u5e38\u691c\u77e5\u306e\u305f\u3081\u306e\u6a5f\u68b0\u5b66\u7fd2\u306e\u5f37\u529b\u306a\u7d71\u5408\uff1a\u4e0d\u5be9\u306a\u6d3b\u52d5\u306e\u691c\u77e5\u3092\u6539\u5584\u3002
\n- \u7570\u306a\u308b\u8a8d\u8a3c\u6a19\u6e96\u9593\u306e\u76f8\u4e92\u904b\u7528\u6027\u306e\u5411\u4e0a\uff1a\u7570\u306a\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u9593\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u9023\u643a\u304c\u53ef\u80fd\u3002
\n- \u8a8d\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u8a2d\u5b9a\u3068\u7ba1\u7406\u306e\u81ea\u52d5\u5316\uff1aSPF\u3001DKIM\u3001DMARC\u306e\u5b9f\u88c5\u3068\u7ba1\u7406\u306e\u7c21\u7d20\u5316\u3002<\/p>\n

SPF\u3001DKIM\u3001DMARC\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u306e\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u30ac\u30a4\u30c9<\/h2>
\nSPF\u3001DKIM\u3001DMARC\u306e\u5b9f\u88c5\u3092\u6210\u529f\u3055\u305b\u308b\u306b\u306f\u3001\u5165\u5ff5\u306a\u8a08\u753b\u3068\u5b9f\u884c\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u8a73\u7d30\u306a\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u30ac\u30a4\u30c9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n

1. \u73fe\u5728\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u30fb\u30a4\u30f3\u30d5\u30e9\u3092\u5206\u6790\u3059\u308b<\/h3>
\n- \u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u3092\u7279\u5b9a\u3059\u308b\uff1a\u304a\u5ba2\u69d8\u306b\u4ee3\u308f\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u3084\u30b5\u30fc\u30d3\u30b9\u3092\u3059\u3079\u3066\u628a\u63e1\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002
\n- \u65e2\u5b58\u306eDNS\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\uff1a\u65e2\u5b58\u306eSPF\u3001DKIM\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u6b63\u78ba\u6027\u3068\u5b8c\u5168\u6027\u3092\u5206\u6790\u3059\u308b\u3002<\/p>\n

2. SPF\u306e\u8a2d\u7acb<\/h3>
\n- \u30c9\u30e1\u30a4\u30f3\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u307e\u305f\u306f\u66f4\u65b0\u3057\u307e\u3059\u3002
\n- \u3059\u3079\u3066\u306e\u8a8d\u53ef\u3055\u308c\u305f\u96fb\u5b50\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u542b\u3081\u308b\u3002
\n- include'\u3001'ip4'\u3001'ip6'\u306a\u3069\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u4f7f\u3063\u3066\u6b63\u78ba\u306b\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n

3. DKIM\u306e\u8a2d\u5b9a<\/h3>
\n- \u5f37\u529b\u306a\u9375\u30da\u30a2\uff08\u516c\u958b\u9375\u3068\u79d8\u5bc6\u9375\uff09\u3092\u751f\u6210\u3059\u308b\u3002
\n- \u516c\u958b\u9375\u3092DNS\u3067\u516c\u958b\u3059\u308b\u3002
\n- \u79d8\u5bc6\u9375\u3092\u4f7f\u3063\u3066\u9001\u4fe1\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u7f72\u540d\u3059\u308b\u3088\u3046\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u30fb\u30b5\u30fc\u30d0\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n

4. DMARC\u306e\u5b9f\u88c5<\/h3>
\n- DNS\u306bDMARC\u30ec\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3002
\n- \u9069\u5207\u306a\u30dd\u30ea\u30b7\u30fc\u3092\u5b9a\u7fa9\u3059\u308b\uff08\u300c\u306a\u3057\u300d\u3001\u300c\u9694\u96e2\u300d\u3001\u300c\u62d2\u5426\u300d\u306a\u3069\uff09\u3002
\n- \u5b9a\u671f\u7684\u306b\u5831\u544a\u3092\u53d7\u3051\u3001\u65b9\u91dd\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306e\u5831\u544a\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u8a2d\u3051\u308b\u3002<\/p>\n

5. \u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/h3>
\n- DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u5b9a\u671f\u7684\u306b\u76e3\u8996\u3057\u3001\u8a8d\u8a3c\u306e\u6709\u52b9\u6027\u3092\u8a55\u4fa1\u3059\u308b\u3002
\n- \u30e1\u30fc\u30eb\u30a4\u30f3\u30d5\u30e9\u304c\u5909\u66f4\u3055\u308c\u305f\u5834\u5408\u306f\u3001SPF\u3068DKIM\u306e\u30a8\u30f3\u30c8\u30ea\u3092\u66f4\u65b0\u3057\u3066\u304f\u3060\u3055\u3044\u3002
\n- \u5b9a\u671f\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u65bd\u3057\u3001\u8106\u5f31\u6027\u3092\u7279\u5b9a\u3057\u3066\u6392\u9664\u3059\u308b\u3002<\/p>\n

\u5b9f\u8df5\u4f8b\uff1a\u6210\u529f\u3057\u305f\u5c0e\u5165\u4f8b<\/h2>
\n\u3059\u3067\u306b\u591a\u304f\u306e\u7d44\u7e54\u304cSPF\u3001DKIM\u3001DMARC\u306e\u5c0e\u5165\u306b\u6210\u529f\u3057\u3066\u304a\u308a\u3001\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u5411\u4e0a\u306b\u3088\u308b\u6069\u6075\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u305d\u306e\u4f8b\u3067\u3059\uff1a<\/p>\n

\u4f8b1\uff1a\u4e2d\u5805\u4f01\u696d<\/h3>
\n\u3042\u308bE\u30b3\u30de\u30fc\u30b9\u5206\u91ce\u306e\u4e2d\u5805\u4f01\u696d\u306f\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u653b\u6483\u3092\u6e1b\u3089\u3059\u305f\u3081\u306bSPF\u3001DKIM\u3001DMARC\u3092\u5c0e\u5165\u3057\u305f\u3002\u5c0e\u5165\u5f8c\u3001\u793e\u540d\u3067\u9001\u4fe1\u3055\u308c\u308b\u507d\u30e1\u30fc\u30eb\u306e\u6570\u306f70%\u6e1b\u5c11\u3057\u305f\u3002\u305d\u306e\u7d50\u679c\u3001\u9867\u5ba2\u306f\u540c\u793e\u306e\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5bfe\u3059\u308b\u4fe1\u983c\u3092\u5f37\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u3002<\/p>\n

\u4f8b2\uff1a\u5927\u624b\u91d1\u878d\u6a5f\u95a2<\/h3>
\n\u3042\u308b\u5927\u624b\u91d1\u878d\u6a5f\u95a2\u306f\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u91d1\u878d\u60c5\u5831\u304c\u627f\u8a8d\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u307f\u9001\u4fe1\u3055\u308c\u308b\u3088\u3046\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3092\u5c0e\u5165\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u304c\u5411\u4e0a\u3057\u3001\u30c7\u30fc\u30bf\u6f0f\u6d29\u3084\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u30ea\u30b9\u30af\u304c\u5927\u5e45\u306b\u8efd\u6e1b\u3055\u308c\u305f\u3002<\/p>\n

\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3092\u5c0e\u5165\u3059\u308b\u969b\u306e\u3088\u304f\u3042\u308b\u9593\u9055\u3044\u3068\u305d\u306e\u56de\u907f\u65b9\u6cd5<\/h2>
\nSPF\u3001DKIM\u3001DMARC\u306e\u5b9f\u88c5\u306f\u8907\u96d1\u3067\u3001\u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u9593\u9055\u3044\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n

- \u4e0d\u5b8c\u5168\u306aSPF\u30ec\u30b3\u30fc\u30c9\uff1a\u3059\u3079\u3066\u306e\u627f\u8a8d\u6e08\u307f\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u304cSPF\u30ec\u30b3\u30fc\u30c9\u306b\u6b63\u3057\u304f\u30ea\u30b9\u30c8\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002
\n- \u5f31\u3044DKIM\u30ad\u30fc\u306e\u4f7f\u7528\uff1a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3001\u5f37\u529b\u3067\u9577\u3044\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u3001\u5b9a\u671f\u7684\u306b\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3059\u308b\u3002
\n- DMARC\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u6b63\u3057\u304f\u306a\u3044\uff1a\u3042\u307e\u308a\u53b3\u3057\u304f\u306a\u3044\u30dd\u30ea\u30b7\u30fc\u304b\u3089\u59cb\u3081\u3001\u53d7\u4fe1\u3057\u305f\u30ec\u30dd\u30fc\u30c8\u306b\u57fa\u3065\u3044\u3066\u53b3\u3057\u304f\u3059\u308b\u3002
\n- \u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30d7\u30ed\u30d0\u30a4\u30c0\u3092\u7121\u8996\u3059\u308b\uff1a\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u3092\u4ee3\u884c\u3059\u308b\u3059\u3079\u3066\u306e\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30fb\u30b5\u30fc\u30d3\u30b9\u3092\u3001\u8a8d\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u6b63\u3057\u304f\u7d71\u5408\u3059\u308b\u3002
\n- \u76e3\u8996\u306e\u6b20\u5982\uff1a\u8a8d\u8a3c\u30ec\u30dd\u30fc\u30c8\u3092\u5b9a\u671f\u7684\u306b\u76e3\u8996\u3057\u3001\u554f\u984c\u3092\u65e9\u671f\u306b\u767a\u898b\u30fb\u89e3\u6c7a\u3059\u308b\u3002<\/p>\n

\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30ea\u30bd\u30fc\u30b9\u3068\u30c4\u30fc\u30eb<\/h2>
\n\u7d44\u7e54\u304cSPF\u3001DKIM\u3001DMARC\u3092\u5b9f\u88c5\u30fb\u7ba1\u7406\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u30ea\u30bd\u30fc\u30b9\u3084\u30c4\u30fc\u30eb\u306f\u6570\u591a\u304f\u3042\u308a\u307e\u3059\uff1a<\/p>\n

- DMARC Analyzer: DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u76e3\u8996\u30fb\u5206\u6790\u3059\u308b\u30c4\u30fc\u30eb\u3002
\n- dmarcian: DMARC\u306e\u5b9f\u88c5\u3068\u7ba1\u7406\u306e\u305f\u3081\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3002
\n- SPF\u30ec\u30b3\u30fc\u30c9\u30c1\u30a7\u30c3\u30ab\u30fc\uff1aSPF\u30ec\u30b3\u30fc\u30c9\u306e\u6b63\u78ba\u6027\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002
\n- DKIM Core: DKIM\u30ad\u30fc\u306e\u751f\u6210\u3068\u30c1\u30a7\u30c3\u30af\u306e\u305f\u3081\u306e\u30c4\u30fc\u30eb\u3002
\n- Google\u30dd\u30b9\u30c8\u30de\u30b9\u30bf\u30fc\u30c4\u30fc\u30eb\uff1a\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u53ef\u5426\u306b\u95a2\u3059\u308b\u30a4\u30f3\u30b5\u30a4\u30c8\u3068\u5206\u6790\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u3089\u306e\u30ea\u30bd\u30fc\u30b9\u306f\u3001\u7d44\u7e54\u304c\u96fb\u5b50\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3092\u52b9\u679c\u7684\u306b\u7ba1\u7406\u3057\u3001\u7d99\u7d9a\u7684\u306b\u6539\u5584\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002<\/p>\n

\u7d50\u8ad6<\/h2>
\nSPF\u3001DKIM\u3001DMARC\u306e3\u3064\u304c\u4e00\u4f53\u3068\u306a\u3063\u3066\u3001\u5805\u7262\u306a\u30e1\u30fc\u30eb\u8a8d\u8a3c\u30b7\u30b9\u30c6\u30e0\u3092\u5f62\u6210\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5b9f\u88c5\u306f\u3001\u304a\u5ba2\u69d8\u306e\u30c9\u30e1\u30a4\u30f3\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4fdd\u8b77\u3057\u3001\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3059\u308b\u305f\u3081\u306b\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u3001\u5b9a\u671f\u7684\u306b\u76e3\u8996\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4fe1\u983c\u3092\u9ad8\u3081\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u30b9\u30d1\u30e0\u304b\u3089\u52b9\u679c\u7684\u306b\u8eab\u3092\u5b88\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306f\u4e00\u904e\u6027\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u306a\u304f\u3001\u7d99\u7d9a\u7684\u306a\u6ce8\u610f\u3068\u9069\u5fdc\u304c\u5fc5\u8981\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u9069\u5207\u306a\u6226\u7565\u3068\u30c4\u30fc\u30eb\u304c\u3042\u308c\u3070\u3001\u30e1\u30fc\u30eb\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b89\u5168\u6027\u3001\u4fe1\u983c\u6027\u3001\u6709\u52b9\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u9867\u5ba2\u306e\u4fe1\u983c\u3092\u7372\u5f97\u3057\u3001\u7d44\u7e54\u306e\u5b8c\u5168\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u6295\u8cc7\u3057\u307e\u3057\u3087\u3046\u3002<\/p>","protected":false},"excerpt":{"rendered":"

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