{"id":4312,"date":"2020-07-28T09:45:55","date_gmt":"2020-07-28T00:45:55","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=4312"},"modified":"2026-02-18T12:34:03","modified_gmt":"2026-02-18T03:34:03","slug":"dmarc-mail","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/spam\/dmarc-mail","title":{"rendered":"DMARC\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u30fb\u8a2d\u5b9a\u65b9\u6cd5\u30fbBIMI\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u30102026\u5e74\u6700\u65b0\u3011"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-4315\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/07\/image2.jpg\" alt=\"\" width=\"1863\" height=\"912\" \/><\/p>\n<p>Gmail\u3084Yahoo!\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5909\u66f4\u3055\u308c\u3001DMARC\u306e\u8a2d\u5b9a\u306f\u3082\u306f\u3084\u4efb\u610f\u3067\u306f\u306a\u304f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3046\u3059\u3079\u3066\u306e\u4f01\u696d\u306b\u3068\u3063\u3066\u5fc5\u9808\u306e\u5bfe\u5fdc\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3044\u3056\u5c0e\u5165\u3057\u3088\u3046\u3068\u601d\u3063\u3066\u3082\u3001SPF\u3084DKIM\u3068\u306e\u9055\u3044\u304c\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u308a\u3001\u8a2d\u5b9a\u3092\u9593\u9055\u3048\u3066\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304f\u306a\u308b\u306e\u304c\u6016\u304b\u3063\u305f\u308a\u3068\u3001\u4e0d\u5b89\u3092\u611f\u3058\u3066\u3044\u308b\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001DMARC\u306e\u4ed5\u7d44\u307f\u3084\u5c0e\u5165\u306e\u30e1\u30ea\u30c3\u30c8\u3001\u5177\u4f53\u7684\u306a\u8a2d\u5b9a\u624b\u9806\u3092IT\u521d\u5fc3\u8005\u306e\u65b9\u3067\u3082\u308f\u304b\u308b\u3088\u3046\u306b\u56f3\u89e3\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001DMARC\u306e\u6b63\u3057\u3044\u8a2d\u5b9a\u65b9\u6cd5\u304c\u7406\u89e3\u3067\u304d\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u5b88\u308a\u3001\u306a\u308a\u3059\u307e\u3057\u88ab\u5bb3\u3092\u9632\u3050\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u7b2c\u4e00\u6b69\u3068\u3057\u3066\u3001\u305c\u3072\u6700\u5f8c\u307e\u3067\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi-doc\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/06\/unnamed-1.jpg\" alt=\"bimi\u5b8c\u5168\u30ac\u30a4\u30c9\" width=\"1024\" height=\"373\" class=\"alignnone wp-image-21292 size-full\" \/><\/a><\/p>\n<h2>DMARC\uff08\u30c7\u30a3\u30fc\u30de\u30fc\u30af\uff09\u3068\u306f<\/h2>\n<p>DMARC\u3068\u3044\u3046\u5358\u8a9e\u306f\u3001\u306a\u304b\u306a\u304b\u805e\u304d\u6163\u308c\u306a\u3044\u8a00\u8449\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>DMARC\u3068\u306f\u300cDomain-based Message Authentication, Reporting and Conformance<br \/>\n\u300d\u306e\u7565\u3067\u3001<strong>\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u3084\u30e1\u30fc\u30eb\u5185\u5bb9\u306e\u6539\u7ac4\u3092\u9632\u3050\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u305f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6280\u8853\u306e\u4e00\u3064\u3067\u3059\u3002<\/strong><\/p>\n<p>\u30e1\u30fc\u30eb\u304c\u8ab0\u304b\u3089\u9001\u3089\u308c\u3066\u304d\u305f\u3082\u306e\u304b\u3092\u77e5\u308b\u65b9\u6cd5\u306f\u300c\u30e1\u30fc\u30eb\u306e\u5dee\u51fa\u4eba\u300d\u3092\u78ba\u8a8d\u3059\u308b\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30e1\u30fc\u30eb\u306f\u300c\u5dee\u51fa\u4eba\u540d\uff08from\uff09\u300d\u3092\u81ea\u7531\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u60aa\u5fb3\u696d\u8005\u304c\u300c\u5dee\u51fa\u4eba\u540d\uff08from\uff09\u300d\u3092\u6709\u540d\u4f01\u696d\u3084\u77e5\u540d\u5ea6\u306e\u3042\u308b\u500b\u4eba\u540d\u306b\u306a\u308a\u3059\u307e\u3057\u3001\u8a50\u6b3a\u306e\u624b\u53e3\u3068\u3057\u3066\u4f7f\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u53d7\u4fe1\u8005\u304c\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306b\u5f15\u3063\u304b\u304b\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308b\u3053\u3068\u306f\u3082\u3061\u308d\u3093\u3001\u306a\u308a\u3059\u307e\u3055\u308c\u305f\u4f01\u696d\u5074\u306e\u4fe1\u7528\u4f4e\u4e0b\u306b\u7e4b\u304c\u308b\u5371\u967a\u3082\u3042\u308b\u305f\u3081\u3001\u5fb9\u5e95\u3057\u305f\u5bfe\u7b56\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u3001Google\u3084Facebook\u3001Microsoft\u304c\u300c<a href=\"https:\/\/dmarc.org\/\">DMARC.org<\/a>\u300d\u3092\u7acb\u3061\u4e0a\u3052\u307e\u3057\u305f\u3002\u300cDMARC.org\u300d\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u30b7\u30b9\u30c6\u30e0\u3067\u3042\u308b\u300cDMARC\u300d\u306e\u666e\u53ca\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>SPF\u30fbDKIM\u30fbDMARC\u306e\u9055\u3044\u3068\u95a2\u4fc2\u6027<\/h2>\n<p>DMARC\u306fSPF\u3068DKIM\u3092\u5358\u72ec\u3067\u306f\u88dc\u3048\u306a\u3044\u90e8\u5206\u3092\u88dc\u5b8c\u3059\u308b\u6280\u8853\u3067\u3059\u30023\u3064\u306e\u6280\u8853\u306e\u9055\u3044\u3092\u6574\u7406\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table width=\"918\">\n<tbody>\n<tr>\n<td width=\"150\"><strong>\u6280\u8853<\/strong><\/td>\n<td width=\"150\"><strong>\u4e3b\u306a\u5f79\u5272<\/strong><\/td>\n<td width=\"150\"><strong>\u3067\u304d\u308b\u3053\u3068<\/strong><\/td>\n<td width=\"150\"><strong>\u3067\u304d\u306a\u3044\u3053\u3068<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"150\">SPF<\/td>\n<td width=\"150\">\u9001\u4fe1\u5143<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u8a8d\u8a3c<\/td>\n<td width=\"150\">\u8a31\u53ef\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u9001\u4fe1\u304b\u78ba\u8a8d<\/td>\n<td width=\"150\">\u30e1\u30fc\u30eb\u5185\u5bb9\u306e\u6539\u3056\u3093\u691c\u77e5\u30fb\u53d7\u4fe1\u30dd\u30ea\u30b7\u30fc\u306e\u6307\u5b9a<\/td>\n<\/tr>\n<tr>\n<td width=\"150\">DKIM<\/td>\n<td width=\"150\">\u96fb\u5b50\u7f72\u540d\u306b\u3088\u308b\u30e1\u30fc\u30eb\u8a8d\u8a3c<\/td>\n<td width=\"150\">\u9001\u4fe1\u8005\u30fb\u5185\u5bb9\u306e\u6539\u3056\u3093\u3092\u691c\u77e5<\/td>\n<td width=\"150\">\u53d7\u4fe1\u30dd\u30ea\u30b7\u30fc\u306e\u6307\u5b9a\u30fb\u30ec\u30dd\u30fc\u30c8\u53d7\u4fe1<\/td>\n<\/tr>\n<tr>\n<td width=\"150\">DMARC<\/td>\n<td width=\"150\">SPF\u30fb<span>DKIM<\/span>\u3092\u7d71\u5408\u30fb\u88dc\u5b8c<\/td>\n<td width=\"150\">\u53d7\u4fe1\u30dd\u30ea\u30b7\u30fc\u6307\u5b9a\u30fb\u8a8d\u8a3c\u30ec\u30dd\u30fc\u30c8\u53d7\u4fe1\u30fb\u4ee3\u7406\u7f72\u540d\u9632\u6b62<\/td>\n<td width=\"150\">\u5358\u4f53\u3067\u306f\u6a5f\u80fd\u3057\u306a\u3044\uff08<span>SPF\/DKIM<\/span>\u304c\u524d\u63d0\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span> <\/div><\/span><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001DMARC\u306fSPF\u3068DKIM\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u524d\u63d0\u306b\u6a5f\u80fd\u3057\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u5358\u4f53\u3067\u306f\u300c\u53d7\u4fe1\u62d2\u5426\u306e\u6307\u5b9a\u300d\u3084\u300c\u8a8d\u8a3c\u30ec\u30dd\u30fc\u30c8\u306e\u53d7\u4fe1\u300d\u304c\u3067\u304d\u306a\u3044\u305f\u3081\u30013\u3064\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u521d\u3081\u3066\u5f37\u56fa\u306a\u30e1\u30fc\u30eb\u8a8d\u8a3c\u74b0\u5883\u304c\u6574\u3044\u307e\u3059\u3002<\/p>\n<h3>SPF\u3068\u306f<\/h3>\n<p>SPF\uff08Sender Policy Framework\uff09\u3068\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e\u4e00\u3064\u3067\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u306e\u60c5\u5831\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308bDNS\u30ec\u30b3\u30fc\u30c9\u5185\u306b\u3001\u914d\u4fe1\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u306e\u60c5\u5831\u3092\u66f8\u304d\u8fbc\u3080\u3053\u3068\u3067\u3001<span style=\"color: #ff0000;\"><strong>\u300c\u6b63\u3057\u3044\u9001\u4fe1\u5143\u304b\u3089\u306e\u30e1\u30fc\u30eb\u3067\u3042\u308b\u300d\u3068\u53d7\u4fe1\u5074\u306b\u8a3c\u660e\u3059\u308b\u4ed5\u7d44\u307f<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>SPF\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306f\u305d\u306e\u30e1\u30fc\u30eb\u304c\u672c\u5f53\u306b\u6b63\u898f\u306e\u9001\u4fe1\u5143\u304b\u3089\u5c4a\u3044\u305f\u3082\u306e\u304b\u3092\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u7d50\u679c\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u304c\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u3068\u5224\u5b9a\u3055\u308c\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u305f\u308a\u3001\u6700\u60aa\u306e\u5834\u5408\u306f\u53d7\u4fe1\u62d2\u5426\u3055\u308c\u3066\u3057\u307e\u3046\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u30012024\u5e742\u6708\u306eGoogle\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u306b\u3088\u308a\u3001Gmail\u3078\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306bSPF\u307e\u305f\u306fDKIM\u306e\u8a2d\u5b9a\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u307e\u3057\u305f\u30021\u65e55,000\u4ef6\u4ee5\u4e0a\u3092\u9001\u4fe1\u3059\u308b\u5927\u91cf\u9001\u4fe1\u8005\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u306e3\u3064\u3059\u3079\u3066\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>SPF\u306e\u4ed5\u7d44\u307f\u30fb\u8a2d\u5b9a\u65b9\u6cd5\u30fb\u78ba\u8a8d\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/spf-record\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/05\/unnamed.jpg\" alt=\"\u3010\u56f3\u89e3\u3011SPF\u30ec\u30b3\u30fc\u30c9\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u30fb\u6b63\u3057\u3044\u66f8\u304d\u65b9\u3068\u78ba\u8a8d\u65b9\u6cd5\u3092\u7d39\u4ecb\uff01Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u306e\u5fc5\u9808\u77e5\u8b58\" width=\"90\" height=\"46\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u3010\u56f3\u89e3\u3011SPF\u30ec\u30b3\u30fc\u30c9\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u30fb\u6b63\u3057\u3044\u66f8\u304d\u65b9\u3068\u78ba\u8a8d\u65b9\u6cd5\u3092\u7d39\u4ecb\uff01Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u306e\u5fc5\u9808\u77e5\u8b58<\/div>\n    <div class=\"blogcard_excerpt\">\u201d\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u201d\u305d\u306e\u304a\u60a9\u307f\u3001\u5b9f\u306fSPF\u30ec\u30b3\u30fc\u30c9\u304c\u539f\u56e0\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002 \u300c\u304a\u5ba2\u69d8\u304b\u3089\u300e\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u3066\u3044\u306a\u3044\u300f\u3068\u8a00\u308f\u308c\u305f\u300d \u300c\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u304c\u306a\u305c\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>DKIM\u3068\u306f<\/h3>\n<p>DKIM\uff08DomainKeys Identified Mail\uff09\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3059\u308b\u3053\u3068\u3067\u3001<span style=\"color: #ff0000;\"><strong>\u9001\u4fe1\u8005\u306e\u6b63\u5f53\u6027\u3068\u30e1\u30fc\u30eb\u5185\u5bb9\u306e\u6539\u3056\u3093\u304c\u306a\u3044\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b<\/strong><\/span>\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002<\/p>\n<p>SPF\u304c\u300c\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u691c\u8a3c\u3059\u308b\u306e\u306b\u5bfe\u3057\u3001DKIM\u306f\u300c\u30e1\u30fc\u30eb\u81ea\u4f53\u306b\u7f72\u540d\u3092\u4ed8\u3051\u308b\u300d\u4ed5\u7d44\u307f\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u305f\u5834\u5408\u3067\u3082IP\u30a2\u30c9\u30ec\u30b9\u304c\u5909\u308f\u3089\u305a\u8a8d\u8a3c\u304c\u7dad\u6301\u3055\u308c\u3084\u3059\u3044\u3068\u3044\u3046\u7279\u5fb4\u304c\u3042\u308a\u3001SPF\u306e\u5f31\u70b9\u3092\u88dc\u5b8c\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002DKIM\u306e\u4ed5\u7d44\u307f\u306f\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u307e\u305a\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u79d8\u5bc6\u9375\u3067\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e<\/li>\n<li>\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304cDNS\u304b\u3089\u516c\u958b\u9375\u3092\u53d6\u5f97\u3057\u3066\u7f72\u540d\u3092\u691c\u8a3c<\/li>\n<li>\u30cf\u30c3\u30b7\u30e5\u5024\u304c\u4e00\u81f4\u3059\u308c\u3070\u300c\u6539\u3056\u3093\u306a\u3057\u300d\u3068\u5224\u5b9a<\/div><\/li>\n<\/ul>\n<p>DKIM\u306e\u78ba\u8a8d\u65b9\u6cd5\u30fb\u8a2d\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/07\/image2.jpg\" alt=\"DMARC\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u30fb\u8a2d\u5b9a\u65b9\u6cd5\u30fbBIMI\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u30102026\u5e74\u6700\u65b0\u3011\" width=\"90\" height=\"44\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DMARC\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u30fb\u8a2d\u5b9a\u65b9\u6cd5\u30fbBIMI\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u30102026\u5e74\u6700\u65b0\u3011<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u3084Yahoo!\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5909\u66f4\u3055\u308c\u3001DMARC\u306e\u8a2d\u5b9a\u306f\u3082\u306f\u3084\u4efb\u610f\u3067\u306f\u306a\u304f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3046\u3059\u3079\u3066\u306e\u4f01\u696d\u306b\u3068\u3063\u3066\u5fc5\u9808\u306e\u5bfe\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>DMARC\u306e\u5f79\u5272<\/h2>\n<p>DMARC\u306b\u306f\u4ee5\u4e0b\u306e3\u3064\u306e\u5f79\u5272\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"su-note\"  style=\"border-color:#e0e2e2;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#fafcfc;border-color:#ffffff;color:#333333;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\">\n\u30fb\u30e1\u30fc\u30eb\u9001\u4fe1\u5074\u304c\u8a8d\u8a3c\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\u65b9\u6cd5\u3092\u6307\u5b9a\u3059\u308b<br \/>\n\u30fb\u30e1\u30fc\u30eb\u9001\u4fe1\u5074\u304c\u8a8d\u8a3c\u7d50\u679c\u3092\u53d7\u4fe1\u5074\u304b\u3089\u53d7\u3051\u53d6\u308b<br \/>\n\u30fb\u4ee3\u7406\u7f72\u540d\u3092\u9632\u3050<br \/>\n<\/div><\/div>\n<p>DMARC\u306f\u305d\u308c\u5358\u4f53\u3067\u6a5f\u80fd\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3042\u308bDKIM\u3084SPF\u3092\u88dc\u52a9\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>\u300c\u30e1\u30fc\u30eb\u9001\u4fe1\u5074\u304c\u300d\u8a8d\u8a3c\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\u65b9\u6cd5\u3092\u6307\u5b9a\u3059\u308b<\/h3>\n<p>\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u306f\u300cSPF\uff08Sender Policy Framework\uff09\u300d\u3068\u3044\u3046\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b7\u30b9\u30c6\u30e0\u304c\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002SPF\u304c\u3001\u9001\u3089\u308c\u3066\u304d\u305f\u30e1\u30fc\u30eb\u3092\u4e0d\u6b63\u30c9\u30e1\u30a4\u30f3\u3067\u306a\u3044\u304b\u5224\u65ad\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3059\u308b\u304b\u3069\u3046\u304b\u306f\u300c\u53d7\u4fe1\u5074\u300d\u306e\u8a2d\u5b9a\u306b\u5de6\u53f3\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3057\u305f\u969b\u306bSPF\u8a8d\u8a3c\u3092\u5931\u6557\u3057\u3066\u3082\u3001\u53d7\u4fe1\u5074\u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u306f\u3001\u305d\u306e\u307e\u307e\u53d7\u4fe1\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u8a2d\u5b9a\u30923\u3064\u306e\u30d1\u30bf\u30fc\u30f3\u3067\u9001\u4fe1\u5074\u304c\u7ba1\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u304c\u300cDMARC\u300d\u306e\u4e00\u3064\u76ee\u306e\u5f79\u5272\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>none\uff08\u53d7\u4fe1\u3055\u305b\u308b\uff09\uff1a\u8a8d\u8a3c\u5931\u6557\u3057\u3066\u3082\u53d7\u4fe1\u3092\u8a31\u53ef\u3002\u307e\u305a\u73fe\u72b6\u628a\u63e1\u306e\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b<\/li>\n<li>quarantine\uff08\u9694\u96e2\u3055\u305b\u308b\uff09\uff1a\u8a8d\u8a3c\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3078\u632f\u308a\u5206\u3051\u308b<\/li>\n<li>reject\uff08\u53d7\u4fe1\u62d2\u5426\u3055\u305b\u308b\uff09\uff1a\u8a8d\u8a3c\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u5b8c\u5168\u306b\u62d2\u5426\u3059\u308b<\/div><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-4314\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/07\/image1.jpg\" alt=\"\" width=\"1188\" height=\"726\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u9001\u4fe1\u8005\u5074\u304c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u7ba1\u7406\u65b9\u6cd5\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u9001\u4fe1\u5074\u304c\u8a8d\u8a3c\u7d50\u679c\u3092\u53d7\u4fe1\u5074\u304b\u3089\u53d7\u3051\u53d6\u308b<\/h3>\n<p>DMARC\u306b\u5bfe\u5fdc\u3059\u308b\u3068\u3001\u4e0d\u6b63\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u5143\u304b\u3089\u8a8d\u8a3c\u7d50\u679c\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u53d7\u3051\u53d6\u308c\u307e\u3059\u3002DKIM\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u691c\u77e5\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001DMARC\u3092\u4f7f\u3046\u3053\u3068\u3067\u3088\u308a\u8a73\u7d30\u306a\u60c5\u5831\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002DMARC\u306f\u3001\u9001\u4fe1\u5143\u307e\u3067\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u3088\u308a\u7dbf\u5bc6\u306a\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u3092\u884c\u3048\u307e\u3059\u3002<\/p>\n<h3>\u4ee3\u7406\u7f72\u540d\u3092\u9632\u3050<\/h3>\n<p>3\u3064\u76ee\u306b\u300c\u4ee3\u7406\u7f72\u540d\u3092\u9632\u3050\u300d\u5f79\u5272\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u308b\u5834\u5408\u3001\u81ea\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u306f\u95a2\u4fc2\u306e\u7121\u3044\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u3082\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3046\u3057\u305f\u5834\u5408\u306b\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u4ee3\u7406\u7f72\u540d\u3068\u3057\u3066\u3001SPF\u3084DKIM\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u3068\u3053\u308d\u304c\u3001DMARC\u306f\u3053\u306e\u4ee3\u7406\u7f72\u540d\u3092\u8a31\u53ef\u3057\u307e\u305b\u3093\u3002\u81ea\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u3057\u304b\u30e1\u30fc\u30eb\u3092\u9001\u308c\u306a\u3044\u3088\u3046\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u305f\u3081\u3001\u3088\u308a\u5f37\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4fdd\u3063\u3066\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3048\u307e\u3059\u3002<\/p>\n<p>DMARC\u3092\u5c0e\u5165\u3057\u305f\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3048\u306a\u304f\u306a\u308b\u3001\u3068\u3044\u3046\u8a33\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u9001\u4fe1\u5143\u3068\u3057\u3066\u767b\u9332\u3059\u308c\u3070DMARC\u3092\u5c0e\u5165\u3057\u3066\u3082\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h2>DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u6bb5\u968e\u7684\u306a\u79fb\u884c\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/h2>\n<p>DMARC\u3092\u8a2d\u5b9a\u3059\u308b\u969b\u306f\u3001\u3044\u304d\u306a\u308areject\u306b\u8a2d\u5b9a\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6025\u306breject\u306b\u5909\u66f4\u3059\u308b\u3068\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u307e\u3067\u62d2\u5426\u3055\u308c\u3066\u3057\u307e\u3046\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table width=\"671\">\n<tbody>\n<tr>\n<td><strong>\u30d5\u30a7\u30fc\u30ba<\/strong><\/td>\n<td><strong>\u30dd\u30ea\u30b7\u30fc\u8a2d\u5b9a<\/strong><\/td>\n<td><strong>\u76ee\u7684<\/strong><\/td>\n<td><strong>\u76ee\u5b89\u671f\u9593<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Phase 1<\/td>\n<td>p=none<\/td>\n<td>\u73fe\u72b6\u306e\u8a8d\u8a3c\u72b6\u6cc1\u3092\u30ec\u30dd\u30fc\u30c8\u3067\u628a\u63e1\u3059\u308b<\/td>\n<td>2\u301c<span>4<\/span>\u9031\u9593<\/td>\n<\/tr>\n<tr>\n<td>Phase 2<\/td>\n<td>p=quarantine<\/td>\n<td>\u7591\u308f\u3057\u3044\u30e1\u30fc\u30eb\u3092\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u632f\u308a\u5206\u3051\u3001\u5f71\u97ff\u3092\u78ba\u8a8d<\/td>\n<td>2\u301c<span>4<\/span>\u9031\u9593<\/td>\n<\/tr>\n<tr>\n<td>Phase 3<\/td>\n<td>p=reject<\/td>\n<td>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u5b8c\u5168\u30d6\u30ed\u30c3\u30af\uff08\u6700\u7d42\u76ee\u6a19\uff09<\/td>\n<td>\u6052\u4e45\u904b\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5404\u30d5\u30a7\u30fc\u30ba\u3067DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u78ba\u8a8d\u3057\u3001\u6b63\u898f\u30e1\u30fc\u30eb\u304c\u6b63\u5e38\u306b\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u304b\u3081\u306a\u304c\u3089\u3001\u6b21\u306e\u30d5\u30a7\u30fc\u30ba\u3078\u9032\u3080\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2>DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h2>\n<p>DMARC\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3001SPF\u3068DKIM\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u524d\u63d0\u306b\u306a\u308a\u307e\u3059\u3002\u4e21\u8005\u306e\u8a2d\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/spam\/spf-record\">\u300cSPF\u30ec\u30b3\u30fc\u30c9\u3068\u306f\uff1f\uff1f 5\u5206\u3067\u5206\u304b\u308bSPF\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u65b9\u6cd5\u300d<\/a><\/p>\n<p>\u8a2d\u5b9a\u306b\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3059\u308b\u5074\u304c\u81ea\u8eab\u306e\u30c9\u30e1\u30a4\u30f3\u306bDMARC\uff08\u30dd\u30ea\u30b7\u30fc\uff09\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002DNS \u306b\u5bfe\u3057\u3066\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u7d44\u307f\u8fbc\u3080\u5fc5\u8981\u306f\u306a\u304f\u3001\u65e2\u306b\u4e00\u822c\u7684\u306b\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u30c6\u30ad\u30b9\u30c8\u8cc7\u6e90\u30ec\u30b3\u30fc\u30c9 \u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u300cmail.jp\u300d\u306e\u5834\u5408\u3001<\/p>\n<blockquote><p>_dmarc.mail.jp IN TXT \u201cv=DMARC1 ; p=none ; rua=mailto:report@mail.jp ; ruf=mailto:report@mail.jp\u201d<br \/>\n\uff08\u201d_dmarc\u201d + \u201c\u30c9\u30e1\u30a4\u30f3\u540d\u201d \u304c\u30ec\u30b3\u30fc\u30c9\u540d\u306b\u306a\u308a\u307e\u3059\uff09<\/p><\/blockquote>\n<ul>\n<li>v\uff1d\uff1aDMARC\u30ec\u30b3\u30fc\u30c9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u756a\u53f7<\/li>\n<li>p=\uff1a\u8a8d\u8a3c\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u53d7\u4fe1\u5074\u306b\u8a2d\u5b9a\u3057\u3066\u6b32\u3057\u3044\u30a2\u30af\u30b7\u30e7\u30f3<\/li>\n<li>rua,ruf\uff1a\u30ec\u30dd\u30fc\u30c8\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3059\u308b\u30a2\u30c9\u30ec\u30b9<\/li>\n<\/ul>\n<p>\u203b\u53d7\u4fe1\u5074\u306b\u8a2d\u5b9a\u3057\u3066\u6b32\u3057\u3044\u30a2\u30af\u30b7\u30e7\u30f3\u306f\u3001\u53d7\u4fe1\u62d2\u5426\u300creject\u300d\u3001\u9694\u96e2\u300cquarantin\u300d\u3001\u53d7\u4fe1\u300cnone\u300d\u3068\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u4e0a\u8a18\u3067\u306f\u300cnone\u300d<\/p>\n<h3>DMARC\u306e\u52d5\u4f5c\u78ba\u8a8d<\/h3>\n<p>\u8a2d\u5b9a\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001\u6b63\u5e38\u306b\u4f5c\u52d5\u3059\u308b\u304b\u3069\u3046\u304b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5168\u3066\u306e\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304cDMARC\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u8a33\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u6700\u8fd1\u3067\u306fGmail\u3092\u306f\u3058\u3081\u3001\u591a\u304f\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u304cDMARC\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u958b\u59cb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30c1\u30a7\u30c3\u30af\u3059\u308b\u969b\u306f\u3001Outlook\u3084Gmail\u306a\u3069\u6709\u540d\u306a\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u9001\u4fe1\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u65b9\u6cd5\u306f\u3001\u30e1\u30fc\u30eb\u30bd\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u300cAuthentication-Results\u300d\u30d8\u30c3\u30c9\u306e\u5024\u3092\u78ba\u304b\u3081\u308b\u3060\u3051\u3067\u3059\u3002dkim=,spf=,dmarc= \u3068\u3044\u3046\u90e8\u5206\u306e\u5024\u304c\u201d pass \u201c\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2>DMARC\u5c0e\u5165\u306e\u5148\u306b\u3042\u308b\u30e1\u30ea\u30c3\u30c8\u300cBIMI\u300d\u3068\u306f\uff1f<\/h2>\n<p>DMARC\u3092\u5c0e\u5165\u3057\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u300c\u62d2\u5426\uff08reject\uff09\u300d\u307e\u305f\u306f\u300c\u9694\u96e2\uff08quarantine\uff09\u300d\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u3055\u3089\u306a\u308b\u6069\u6075\u3092\u53d7\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u304c\u300cBIMI\uff08Brand Indicators for Message Identification\uff09\u300d\u306e\u6d3b\u7528\u3067\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u306e\u6a2a\u306b\u300c\u81ea\u793e\u30ed\u30b4\u300d\u3092\u8868\u793a\u3067\u304d\u308b<\/h3>\n<p>BIMI\u3068\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08DMARC\uff09\u3092\u5229\u7528\u3057\u3066\u3001<span style=\"color: #ff0000;\"><strong>\u53d7\u4fe1\u30dc\u30c3\u30af\u30b9\u306e\u9001\u4fe1\u8005\u540d\u306e\u6a2a\u306b\u4f01\u696d\u306e\u516c\u5f0f\u30ed\u30b4\u30de\u30fc\u30af\u3092\u8868\u793a\u3055\u305b\u308b\u4ed5\u7d44\u307f<\/strong><\/span>\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u901a\u5e38\u3001\u53d7\u4fe1\u753b\u9762\u3067\u306f\u9001\u4fe1\u8005\u306e\u30a2\u30a4\u30b3\u30f3\u306f\u7a7a\u767d\u304b\u540d\u524d\u306e\u982d\u6587\u5b57\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u304c\u3001BIMI\u306b\u5bfe\u5fdc\u3059\u308b\u3068\u3001\u30e1\u30fc\u30eb\u3092\u958b\u304f\u524d\u304b\u3089\u300c\u3053\u308c\u306f\u9593\u9055\u3044\u306a\u304f\u3042\u306e\u4f01\u696d\u304b\u3089\u306e\u30e1\u30fc\u30eb\u3060\u300d\u3068\u4e00\u76ee\u3067\u5224\u5225\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>BIMI\u3092\u5c0e\u5165\u3059\u308b3\u3064\u306e\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>BIMI\u306e\u8868\u793a\u306b\u306f\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3068\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306e\u6210\u679c\u5411\u4e0a\u306e2\u3064\u306e\u52b9\u679c\u304c\u898b\u8fbc\u3081\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306e\u8996\u899a\u5316<\/strong>\n\u300c\u30ed\u30b4\u304c\u3042\u308b\uff1d\u8a8d\u8a3c\u3055\u308c\u305f\u5b89\u5168\u306a\u30e1\u30fc\u30eb\u300d\u3068\u3044\u3046\u56f3\u5f0f\u304c\u6210\u308a\u7acb\u3064\u305f\u3081\u3001\u9867\u5ba2\u3092\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u304b\u3089\u5b88\u308b\u5f37\u529b\u306a\u6b66\u5668\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u958b\u5c01\u7387\u306e\u5411\u4e0a<\/strong>\n\u516c\u5f0f\u30ed\u30b4\u304c\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u3067\u30e6\u30fc\u30b6\u30fc\u306e\u5b89\u5fc3\u611f\u304c\u9ad8\u307e\u308a\u3001\u6570\u591a\u306e\u30e1\u30fc\u30eb\u306e\u4e2d\u306b\u57cb\u3082\u308c\u308b\u3053\u3068\u306a\u304f\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u3092\u76ee\u7acb\u305f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u30d6\u30e9\u30f3\u30c9\u8a8d\u77e5\u5ea6\u306e\u5411\u4e0a<\/strong>\n\u30e1\u30fc\u30eb\u3092\u958b\u5c01\u3057\u306a\u304f\u3066\u3082\u30ed\u30b4\u304c\u76ee\u306b\u5165\u308b\u305f\u3081\u3001\u8996\u899a\u7684\u306a\u30a4\u30f3\u30d7\u30ec\u30c3\u30b7\u30e7\u30f3\u52b9\u679c\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/div><\/li>\n<\/ul>\n<h3>BIMI\u306b\u3064\u3044\u3066\u8a73\u7d30\u304c\u77e5\u308a\u305f\u3044\u30fb\u76f8\u8ac7\u3057\u305f\u3044\u5834\u5408<\/h3>\n<p>BIMI\u306b\u3064\u3044\u3066\u306e\u8a73\u7d30\u306f\u3001BIM\u306e\u30e1\u30ea\u30c3\u30c8\u304b\u3089\u5c0e\u5165\u307e\u3067\u306e\u30b9\u30c6\u30c3\u30d7\u3001\u5931\u6557\u3057\u306a\u3044\u305f\u3081\u306eDMARC\u79fb\u884c\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u3001BIMI\u8a2d\u5b9a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u307e\u3067\u3092\u307e\u3068\u3081\u305fBIMI\u5b8c\u5168\u30ac\u30a4\u30c9\u3092\u7121\u6599\u3067\u3054\u7528\u610f\u3057\u307e\u3057\u305f\u306e\u3067\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001BIMI\u306b\u3064\u3044\u3066\u306e\u304a\u554f\u3044\u5408\u308f\u305b\u3084\u3054\u76f8\u8ac7\u3082\u53ef\u80fd\u3067\u3059\u306e\u3067\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><strong><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi-doc\" target=\"_blank\" rel=\"noopener\">&gt;&gt;BIMI\u5b8c\u5168\u30ac\u30a4\u30c9\u3092\u7121\u6599\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b<\/a><\/strong><\/p>\n<p><strong><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi\" target=\"_blank\" rel=\"noopener\">&gt;&gt;BIMI\u5c0e\u5165\u306b\u3064\u3044\u3066\u7121\u6599\u3067\u76f8\u8ac7\u30fb\u554f\u3044\u5408\u308f\u305b\u3059\u308b<\/a><\/strong><\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/01\/bimi-expert.jpg\" alt=\"bimi-expert\" width=\"1024\" height=\"266\" class=\"alignnone wp-image-21305 size-full\" \/><\/a><\/p>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">Q\uff1aDMARC\u3068\u306f\u3069\u306e\u3088\u3046\u306a\u4ed5\u7d44\u307f\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6280\u8853\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aDMARC\u306f\u3001SPF\u3084DKIM\u3068\u3044\u3046\u65e2\u5b58\u306e\u8a8d\u8a3c\u6280\u8853\u3092\u88dc\u5b8c\u3057\u3001<strong>\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3084\u5185\u5bb9\u306e\u6539\u3056\u3093\u3092\u9632\u3050\u305f\u3081\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853<\/strong>\u3067\u3059\u3002\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u6271\u3044\uff08\u62d2\u5426\u30fb\u9694\u96e2\u306a\u3069\uff09\u3092\u9001\u4fe1\u8005\u304c\u6307\u5b9a\u3067\u304d\u308b\u306e\u304c\u5927\u304d\u306a\u7279\u5fb4\u3067\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aSPF\u3084DKIM\u3068\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aSPF\u306f\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3092\u3001DKIM\u306f\u96fb\u5b50\u7f72\u540d\u3067\u30e1\u30fc\u30eb\u306e\u6b63\u5f53\u6027\u3092\u691c\u8a3c\u3057\u307e\u3059\u304c\u3001<strong>DMARC\u306f\u3053\u308c\u3089\u3092\u7d71\u5408\u3057\u3001\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u6307\u5b9a\u3084\u30ec\u30dd\u30fc\u30c8\u53d7\u4fe1\u3092\u53ef\u80fd\u306b\u3059\u308b<\/strong>\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aDMARC\u30dd\u30ea\u30b7\u30fc\u306e\u300cnone\u300d\u300cquarantine\u300d\u300creject\u300d\u306e\u9055\u3044\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/dt><dd class=\"blog-faq__answer\">A\uff1anone\u306f\u8a8d\u8a3c\u5931\u6557\u3057\u3066\u3082\u53d7\u4fe1\u3092\u8a31\u53ef\u3057\u3001quarantine\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u3078\u9694\u96e2\u3001<strong>reject\u306f\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3092\u5b8c\u5168\u306b\u53d7\u4fe1\u62d2\u5426\u3055\u305b\u308b<\/strong>\u8a2d\u5b9a\u3092\u6307\u3057\u307e\u3059\u3002\u5c0e\u5165\u6642\u306f\u6bb5\u968e\u7684\u306b\u5f37\u5ea6\u3092\u4e0a\u3052\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aDMARC\u3092\u5c0e\u5165\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u3068\u3057\u3066\u6319\u3052\u3089\u308c\u308b\u300cBIMI\u300d\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aBIMI\u3068\u306f\u3001DMARC\u3067\u8a8d\u8a3c\u3055\u308c\u305f\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u540d\u306e\u6a2a\u306b<strong>\u4f01\u696d\u306e\u516c\u5f0f\u30ed\u30b4\u30de\u30fc\u30af\u3092\u8868\u793a\u3055\u305b\u308b\u4ed5\u7d44\u307f<\/strong>\u306e\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u53d7\u4fe1\u8005\u306e\u5b89\u5fc3\u611f\u304c\u9ad8\u307e\u308a\u3001\u958b\u5c01\u7387\u3084\u30d6\u30e9\u30f3\u30c9\u8a8d\u77e5\u5ea6\u306e\u5411\u4e0a\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aDMARC\u306e\u8a2d\u5b9a\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306e\u30bd\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u3001<strong>\u300cAuthentication-Results\u300d\u30d8\u30c3\u30c0\u30fc\u5185\u306edmarc=\u306e\u5024\u304c&#8221;pass&#8221;\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u6b63\u5e38<\/strong>\u306b\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/dd>\n<\/dl><\/div>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>DMARC\u304c\u666e\u53ca\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u66f4\u306a\u308b\u5411\u4e0a\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u306e\u4e00\u6589\u9001\u4fe1\u3092\u983b\u7e41\u306b\u884c\u3046\u3053\u3068\u304c\u591a\u3044\u4f01\u696d\u306e\u5834\u5408\u3001\u30e1\u30fc\u30eb\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u306f\u975e\u5e38\u306b\u5927\u5207\u3067\u3059\u3002\u30e1\u30fc\u30eb\u306e\u5b89\u5168\u6027\u304c\u4f4e\u3044\u3068\u3001\u3042\u306a\u305f\u306e\u4f1a\u793e\u3092\u507d\u3063\u305f\u696d\u8005\u304b\u3089\u306e\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u304c\u6a2a\u884c\u3057\u3001\u4e0d\u6b63\u306b\u5229\u7528\u3055\u308c\u3066\u3057\u307e\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u3082\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/mail-delivery\/security-measures\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u306f\uff1f\u30ea\u30b9\u30af\u3068\u5bfe\u7b56\u3092\u5fb9\u5e95\u89e3\u8aac<\/a><\/p>\n<p>\u5b89\u5168\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u884c\u3046\u305f\u3081\u306b\u3001\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u306f\u5fb9\u5e95\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u306a\u304a\u3001SPF\u30fbDKIM\u306e\u8a2d\u5b9a\u306b\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u3088\u308a\u30b9\u30e0\u30fc\u30ba\u306b\u6574\u5099\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"index_id12\" class=\"wp-block-heading\">\u30e1\u30fc\u30eb\u914d\u4fe1\u306fSPF\u30fbDKIM\u30fbDMARC\u304c\u8a2d\u5b9a\u3067\u304d\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046<\/h2>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u30e1\u30fc\u30eb\u81ea\u4f53\u306f\u30b7\u30b9\u30c6\u30e0\u3092\u4fdd\u6709\u3057\u3066\u3044\u308b\u4f1a\u793e\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u914d\u4fe1\u3055\u308c\u308b\u3053\u3068\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u306a\u3069\u30e1\u30fc\u30eb\u306e\u4e00\u6589\u914d\u4fe1\u3092\u542b\u3081\u305f\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u884c\u3046\u969b\u306fSPF\u3068DKIM\u30fbDMARC\u304c\u8a2d\u5b9a\u3067\u304d\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h3 id=\"index_id13\" class=\"wp-block-heading\"><strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3068\u306f<\/strong><\/h3>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u8907\u6570\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u3057\u3066\u540c\u6642\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u5927\u898f\u6a21\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u306f\u3057\u3070\u3057\u3070\u30b9\u30d1\u30e0\u3068\u898b\u306a\u3055\u308c\u304c\u3061\u3067\u3001\u305d\u306e\u7d50\u679c\u3001\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u305f\u308a\u3001\u6700\u60aa\u306e\u5834\u5408\u306f\u9001\u4fe1\u5148\u306b\u5c4a\u304b\u306a\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u514b\u670d\u3059\u308b\u305f\u3081\u306b\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u7279\u5b9a\u306e\u6280\u8853\u304c\u63a1\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u591a\u6570\u306e\u30e1\u30fc\u30eb\u3092\u5b89\u5168\u306b\u914d\u4fe1\u3059\u308b\u3053\u3068\u304c\u5b9f\u73fe\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30e1\u30eb\u30de\u30ac\u9001\u4fe1\u3084\u4f01\u696d\u5185\u3067\u306e\u5e83\u5831\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u306a\u3069\u306b\u5229\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<h3>\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d\u306e\u6d3b\u7528<\/h3>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-14488\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/07\/blastmail-top.jpg\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"941\" height=\"483\" \/><\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u3001SPF\u30fbDKIM\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001<strong>\u30e1\u30eb\u30de\u30ac\u914d\u4fe1\u3084\u5927\u91cf\u914d\u4fe1\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u306b\u7279\u5316<\/strong>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306f15\u5e74\u9023\u7d9a\u9867\u5ba2\u5c0e\u5165\u6570\u30671\u4f4d\u3092\u7372\u5f97\u3057\u3066\u304a\u308a\u3001\u76f4\u611f\u7684\u306a\u64cd\u4f5c\u6027\u3068\u3001\u512a\u308c\u305f\u30b3\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3042\u308a\u307e\u3059\u3002\u5e45\u5e83\u3044\u696d\u754c\u3084\u516c\u5171\u6a5f\u95a2\u304b\u3089\u306e\u652f\u6301\u3092\u53d7\u3051\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30c4\u30fc\u30eb\u3068\u3057\u3066\u306e\u5730\u4f4d\u3092\u78ba\u7acb\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8ab2\u984c\u3092\u62b1\u3048\u3066\u3044\u308b\u5834\u5408\u3001\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u4f7f\u7528\u3092\u8003\u616e\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u914d\u4fe1\u3057\u305f\u30e1\u30eb\u30de\u30ac\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u3066\u3057\u307e\u3046<\/li>\n<li>\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3044\u52b9\u7387\u304c\u60aa\u3044<\/li>\n<li>\u5b89\u304f\u3066\u4fe1\u983c\u3067\u304d\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u63a2\u3057\u3066\u3044\u308b<\/div><\/li>\n<\/ul>\n<p>SPF\u30fbDKIM\u306a\u3069\u3001Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u306e\u306f\u3082\u3061\u308d\u3093\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u5206\u3051\u306b\u3088\u308b\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\u3001\u6210\u679c\u6e2c\u5b9a\u3001HTML\u30e1\u30fc\u30eb\u306e\u7de8\u96c6\u306a\u3069\u3001\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u4e00\u901a\u308a\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u6700\u3082\u30ea\u30fc\u30ba\u30ca\u30d6\u30eb\u306a\u30d7\u30e9\u30f3\u3067\u3042\u308c\u3070\u3001\u6708\u984d4,000\u5186\u672a\u6e80\u304b\u3089\u5229\u7528\u958b\u59cb\u3067\u304d\u307e\u3059\u3002\uff08DKIM\u306fstandard\u30d7\u30e9\u30f3\u304b\u3089\u5229\u7528\u3067\u304d\u307e\u3059\uff09<\/p>\n<p>\u305d\u306e\u30b7\u30f3\u30d7\u30eb\u3055\u3068\u4f4e\u4fa1\u683c\u304b\u3089\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30c4\u30fc\u30eb\u306e\u4f7f\u7528\u304c\u521d\u3081\u3066\u306e\u65b9\u306b\u3082\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u8208\u5473\u304c\u3042\u308c\u3070\u305c\u3072\u5229\u7528\u3092\u691c\u8a0e\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><strong>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\">\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/a><\/strong><\/p>\n<h3>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc\u30b5\u30fc\u30d3\u30b9\u300c\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3(blastengine)\u300d\u306e\u6d3b\u7528<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/10\/blastengine.jpg\" alt=\"blastengine\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1303\" height=\"590\" class=\"alignnone size-full wp-image-19575\" \/><\/p>\n<p><a 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