{"id":21435,"date":"2026-03-10T11:46:36","date_gmt":"2026-03-10T02:46:36","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=21435"},"modified":"2026-03-10T11:55:11","modified_gmt":"2026-03-10T02:55:11","slug":"dmarc-alignment","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/spam\/dmarc-alignment","title":{"rendered":"DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/03\/dmarc-alignment.jpg\" alt=\"DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\" width=\"1408\" height=\"768\" class=\"alignnone size-full wp-image-21437\" \/><\/p>\n<p>\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u300cSPF\u3092\u8a2d\u5b9a\u3057\u305f\u300d\u300cDKIM\u3082\u5c0e\u5165\u3057\u305f\u300d\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u3063\u3066\u3057\u307e\u3046\u3002\u305d\u3093\u306a\u7d4c\u9a13\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u5b9f\u306f\u3001SPF\u3084DKIM\u306e\u8a8d\u8a3c\u304c\u6280\u8853\u7684\u306bPass\u3057\u3066\u3044\u3066\u3082\u3001<strong>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/strong>\u304c\u6210\u7acb\u3057\u3066\u3044\u306a\u3051\u308c\u3070\u3001DMARC\u8a8d\u8a3c\u5168\u4f53\u3068\u3057\u3066\u306fFail\u3068\u5224\u5b9a\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306b\u8868\u793a\u3055\u308c\u308b\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\uff08\u30d8\u30c3\u30c0From\uff09\u3068\u3001SPF\u30fbDKIM\u3067\u8a8d\u8a3c\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u306e\u300c\u4e00\u81f4\u6027\u300d\u3092\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>2024\u5e742\u6708\u306bGoogle\u304c\u65bd\u884c\u3057\u305f\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5f37\u5316\u306b\u3088\u308a\u30011\u65e55,000\u901a\u4ee5\u4e0a\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u4f01\u696d\u306b\u306fDMARC\u5bfe\u5fdc\u304c\u6c42\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3057\u305f\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u4ed5\u7d44\u307f\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u3066\u3044\u306a\u3051\u308c\u3070\u3001\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u307e\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/gmail-guideline\/\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/03\/dmarc-alignment.jpg\" alt=\"DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\" width=\"90\" height=\"49\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u300cSPF\u3092\u8a2d\u5b9a\u3057\u305f\u300d\u300cDKIM\u3082\u5c0e\u5165\u3057\u305f\u300d\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u3063\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u57fa\u672c\u304b\u3089\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30fbDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u305d\u308c\u305e\u308c\u306e\u4ed5\u7d44\u307f\u3001relaxed\u30e2\u30fc\u30c9\u3068strict\u30e2\u30fc\u30c9\u306e\u9055\u3044\u3001\u3088\u304f\u3042\u308b\u5931\u6557\u30d1\u30bf\u30fc\u30f3\u3068\u5177\u4f53\u7684\u306a\u5bfe\u51e6\u6cd5\u307e\u3067\u3092\u4f53\u7cfb\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/blog\/download\/bimi-doc\" target=\"_blank\" rel=\"noopener\"><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\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1f\u57fa\u672c\u6982\u5ff5\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/h2>\n<p>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306e\u300c\u30d8\u30c3\u30c0From\u300d\u30c9\u30e1\u30a4\u30f3\u3068\u3001SPF\u3084DKIM\u3067\u8a8d\u8a3c\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u82f1\u8a9e\u306e\u300cAlignment\u300d\u306f\u300c\u6574\u5408\u6027\u300d\u3084\u300c\u4e00\u81f4\u300d\u3092\u610f\u5473\u3057\u3001\u65e5\u672c\u8a9e\u306e\u7ffb\u8a33\u3067\u306f\u300c\u8abf\u6574\u300d\u3068\u8868\u8a18\u3055\u308c\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>DMARC\u306b\u304a\u3051\u308b\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u5f79\u5272<\/h3>\n<p>DMARC\u306f\u3001SPF\u3068DKIM\u3068\u3044\u30462\u3064\u306e\u65e2\u5b58\u8a8d\u8a3c\u6280\u8853\u306e\u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u3057\u304b\u3057\u3001<span style=\"color: #ff0000;\"><strong>SPF\u3084DKIM\u5358\u4f53\u3067\u306f\u3001\u53d7\u4fe1\u8005\u304c\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u4e0a\u3067\u78ba\u8a8d\u3059\u308b\u300c\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\uff08\u30d8\u30c3\u30c0From\uff09\u300d\u306e\u6b63\u5f53\u6027\u3092\u76f4\u63a5\u691c\u8a3c\u3067\u304d\u306a\u3044<\/strong><\/span>\u3068\u3044\u3046\u5f31\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u306b\u306f\u3001\u53d7\u4fe1\u8005\u306b\u8868\u793a\u3055\u308c\u308b\u300c\u30d8\u30c3\u30c0From\u300d\u3068\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u901a\u4fe1\u3067\u4f7f\u7528\u3055\u308c\u308b\u300c\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\uff08Return-Path\uff09\u300d\u3068\u3044\u30462\u3064\u306e\u9001\u4fe1\u5143\u60c5\u5831\u304c\u3042\u308a\u307e\u3059\u3002\u30d8\u30c3\u30c0From\u306f\u9001\u4fe1\u8005\u304c\u81ea\u7531\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u305f\u3081\u3001\u60aa\u610f\u306e\u3042\u308b\u7b2c\u4e09\u8005\u304c\u6b63\u898f\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u8a50\u79f0\u3059\u308b\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u304c\u53ef\u80fd\u3067\u3059\u3002SPF\u8a8d\u8a3c\u306f\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u691c\u8a3c\u3057\u3001DKIM\u8a8d\u8a3c\u306f\u96fb\u5b50\u7f72\u540d\u306e\u30c9\u30e1\u30a4\u30f3\uff08d=\u30bf\u30b0\uff09\u3092\u691c\u8a3c\u3057\u307e\u3059\u304c\u3001\u3044\u305a\u308c\u3082\u30d8\u30c3\u30c0From\u3068\u306e\u7167\u5408\u306f\u884c\u3044\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001SPF\u3084DKIM\u304c\u6280\u8853\u7684\u306bPass\u3057\u3066\u3044\u3066\u3082\u3001\u30d8\u30c3\u30c0From\u304c\u6b63\u898f\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u7121\u95a2\u4fc2\u306a\u30b1\u30fc\u30b9\u304c\u8d77\u3053\u308a\u5f97\u307e\u3059\u3002<\/p>\n<p><strong>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u3001\u3053\u306e\u300c\u629c\u3051\u7a74\u300d\u3092\u585e\u3050\u4ed5\u7d44\u307f<\/strong>\u3067\u3059\u3002SPF\u307e\u305f\u306fDKIM\u3067\u8a8d\u8a3c\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u3068\u3001\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u53d7\u4fe1\u8005\u306b\u8868\u793a\u3055\u308c\u308b\u9001\u4fe1\u5143\u304c\u507d\u88c5\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<h3>DMARC\u8a8d\u8a3c\u304cPass\u3059\u308b\u6761\u4ef6<\/h3>\n<p>DMARC\u8a8d\u8a3c\u304cPass\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3044\u305a\u308c\u304b\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u6761\u4ef61\uff1aSPF\u8a8d\u8a3cPass \uff0b SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8Pass<\/strong><\/li>\n<li><strong>\u6761\u4ef62\uff1aDKIM\u8a8d\u8a3cPass \uff0b DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8Pass<\/strong><\/li>\n<\/ul>\n<\/div>\n<p>\u91cd\u8981\u306a\u306e\u306f\u3001SPF\u3068DKIM\u306e<strong>\u4e21\u65b9<\/strong>\u304cPass\u3059\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001<strong>\u3069\u3061\u3089\u304b\u4e00\u65b9<\/strong>\u306e\u8a8d\u8a3c\u3068\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cPass\u3057\u3066\u3044\u308c\u3070\u3001DMARC\u8a8d\u8a3c\u5168\u4f53\u3068\u3057\u3066Pass\u3068\u306a\u308b\u70b9\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u8a8d\u8a3c\u3060\u3051\u304cPass\u3057\u3066\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cFail\u306e\u5834\u5408\u306f\u3001DMARC\u8a8d\u8a3c\u3068\u3057\u3066\u306fFail\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001SPF\u8a8d\u8a3c\u304cPass\u30fbDKIM\u3082\u8a8d\u8a3c\u304cPass\u3057\u3066\u3044\u3066\u3082\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u4e21\u65b9\u304cFail\u3067\u3042\u308c\u3070\u3001DMARC\u8a8d\u8a3c\u306fFail\u3067\u3059\u3002\u3053\u306e\u70b9\u304c\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u306a\u843d\u3068\u3057\u7a74\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u5224\u5b9a\u30d1\u30bf\u30fc\u30f3<\/th>\n<th>SPF\u8a8d\u8a3c<\/th>\n<th>SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/th>\n<th>DKIM\u8a8d\u8a3c<\/th>\n<th>DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/th>\n<th>DMARC\u7d50\u679c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30d1\u30bf\u30fc\u30f31<\/td>\n<td>Pass<\/td>\n<td>Pass<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td><strong>Pass<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30bf\u30fc\u30f32<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Pass<\/td>\n<td>Pass<\/td>\n<td><strong>Pass<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30bf\u30fc\u30f33<\/td>\n<td>Pass<\/td>\n<td>Pass<\/td>\n<td>Pass<\/td>\n<td>Pass<\/td>\n<td><strong>Pass<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30bf\u30fc\u30f34<\/td>\n<td>Pass<\/td>\n<td>Fail<\/td>\n<td>Pass<\/td>\n<td>Fail<\/td>\n<td><strong>Fail<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30bf\u30fc\u30f35<\/td>\n<td>Pass<\/td>\n<td>Fail<\/td>\n<td>Fail<\/td>\n<td>&#8211;<\/td>\n<td><strong>Fail<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30bf\u30fc\u30f36<\/td>\n<td>Fail<\/td>\n<td>&#8211;<\/td>\n<td>Pass<\/td>\n<td>Fail<\/td>\n<td><strong>Fail<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u4e0a\u8a18\u306e\u8868\u3067\u7279\u306b\u6ce8\u610f\u3059\u3079\u304d\u306f\u30d1\u30bf\u30fc\u30f34\u3067\u3059\u3002SPF\u30fbDKIM\u3068\u3082\u306b\u8a8d\u8a3c\u81ea\u4f53\u306fPass\u3057\u3066\u3044\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u4e21\u65b9\u3068\u3082Fail\u306e\u305f\u3081DMARC\u8a8d\u8a3c\u304c\u5931\u6557\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/dmarc\/\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/03\/dmarc-alignment.jpg\" alt=\"DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\" width=\"90\" height=\"49\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u300cSPF\u3092\u8a2d\u5b9a\u3057\u305f\u300d\u300cDKIM\u3082\u5c0e\u5165\u3057\u305f\u300d\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u3063\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u4ed5\u7d44\u307f\u3068\u6210\u7acb\u6761\u4ef6<\/h2>\n<p>SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u3001\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u3001SPF\u8a8d\u8a3c\u3067\u691c\u8a3c\u3055\u308c\u308b\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\uff08Return-Path\uff09\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<h3>\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u3068\u30d8\u30c3\u30c0From\u306e\u95a2\u4fc2<\/h3>\n<p>\u30e1\u30fc\u30eb\u306e\u4ed5\u7d44\u307f\u3092\u624b\u7d19\u306b\u4f8b\u3048\u308b\u3068\u3001<strong>\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From<\/strong>\u306f\u5c01\u7b52\u306b\u8a18\u8f09\u3055\u308c\u305f\u5dee\u51fa\u4eba\u4f4f\u6240\u3001<strong>\u30d8\u30c3\u30c0From<\/strong>\u306f\u4fbf\u7b8b\u306b\u8a18\u8f09\u3055\u308c\u305f\u5dee\u51fa\u4eba\u540d\u306b\u3042\u305f\u308a\u307e\u3059\u3002\u5c01\u7b52\u306e\u5dee\u51fa\u4eba\u3068\u4fbf\u7b8b\u306e\u5dee\u51fa\u4eba\u304c\u4e00\u81f4\u3057\u3066\u3044\u308c\u3070\u4fe1\u983c\u3067\u304d\u307e\u3059\u304c\u3001\u4e00\u81f4\u3057\u3066\u3044\u306a\u3051\u308c\u3070\u4e0d\u5be9\u306b\u611f\u3058\u307e\u3059\u3002SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u3001\u307e\u3055\u306b\u3053\u306e\u300c\u4e00\u81f4\u300d\u3092\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306b\u306f\u3001SPF\u8a8d\u8a3c\u306f\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3057\u3066\u884c\u308f\u308c\u307e\u3059\u3002DNS\u306eSPF\u30ec\u30b3\u30fc\u30c9\u306b\u8a18\u8f09\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u9001\u4fe1\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306e\u304cSPF\u8a8d\u8a3c\u3067\u3001\u305d\u306e\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3059\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u306e\u304cSPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<h3>SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3059\u308b\u5178\u578b\u7684\u306a\u30b1\u30fc\u30b9<\/h3>\n<p>\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3059\u308b\u30b1\u30fc\u30b9\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304c\u300cexample.com\u300d\u3067\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u300cmail-service.com\u300d\u306e\u5834\u5408\u3092\u8003\u3048\u307e\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u4fe1\u3059\u308b\u305f\u3081\u3001\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u306f\u300cbounce@mail-service.com\u300d\u306e\u3088\u3046\u306b\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002\u4e00\u65b9\u3001\u53d7\u4fe1\u8005\u306b\u8868\u793a\u3055\u308c\u308b\u30d8\u30c3\u30c0From\u306f\u300cinfo@example.com\u300d\u306e\u307e\u307e\u3002\u3053\u306e\u5834\u5408\u3001\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u306e\u30c9\u30e1\u30a4\u30f3\uff08mail-service.com\uff09\u3068\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\uff08example.com\uff09\u304c\u4e00\u81f4\u3057\u306a\u3044\u305f\u3081\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306fFail\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u3067<strong>\u30ab\u30b9\u30bf\u30e0Return-Path<\/strong>\u306e\u8a2d\u5b9a\u3092\u884c\u3044\u3001\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\uff08\u307e\u305f\u306f\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\uff09\u306b\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u591a\u304f\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u3053\u306e\u8a2d\u5b9a\u3092CNAME\u30ec\u30b3\u30fc\u30c9\u306e\u8ffd\u52a0\u3067\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6ce8\u610f\u70b9\uff1a\u30e1\u30fc\u30eb\u8ee2\u9001<\/h3>\n<p>\u30e1\u30fc\u30eb\u8ee2\u9001\u306f\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306b\u3068\u3063\u3066\u5927\u304d\u306a\u30ea\u30b9\u30af\u8981\u56e0\u3067\u3059\u3002\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u308b\u3068\u3001\u8ee2\u9001\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u5143\u306eSPF\u30ec\u30b3\u30fc\u30c9\u306b\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001SPF\u8a8d\u8a3c\u81ea\u4f53\u304cFail\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u307f\u306b\u4f9d\u5b58\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u4f75\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/spf\/\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/03\/dmarc-alignment.jpg\" alt=\"DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\" width=\"90\" height=\"49\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u300cSPF\u3092\u8a2d\u5b9a\u3057\u305f\u300d\u300cDKIM\u3082\u5c0e\u5165\u3057\u305f\u300d\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u3063\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u4ed5\u7d44\u307f\u3068\u6210\u7acb\u6761\u4ef6<\/h2>\n<p>DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u3001\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u3001DKIM\u7f72\u540d\u306e\u30c9\u30e1\u30a4\u30f3\uff08d=\u30bf\u30b0\u306e\u5024\uff09\u304c\u4e00\u81f4\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<h3>DKIM\u7f72\u540d\u30c9\u30e1\u30a4\u30f3\u3068\u306f<\/h3>\n<p>DKIM\u306f\u3001\u9001\u4fe1\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3001\u53d7\u4fe1\u5074\u304c\u305d\u306e\u7f72\u540d\u3092DNS\u306e\u516c\u958b\u9375\u3067\u691c\u8a3c\u3059\u308b\u3053\u3068\u3067\u3001\u9001\u4fe1\u5143\u306e\u6b63\u5f53\u6027\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6539\u3056\u3093\u6709\u7121\u3092\u78ba\u8a8d\u3059\u308b\u6280\u8853\u3067\u3059\u3002DKIM\u7f72\u540d\u306b\u306f\u300cd=\u300d\u30bf\u30b0\u3067\u30c9\u30e1\u30a4\u30f3\u304c\u6307\u5b9a\u3055\u308c\u3066\u304a\u308a\u3001DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3067\u306f\u3053\u306ed=\u30bf\u30b0\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u81f4\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<h3>DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3059\u308b\u5178\u578b\u7684\u306a\u30b1\u30fc\u30b9<\/h3>\n<p>SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u540c\u69d8\u306b\u3001\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306bDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3059\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u81ea\u793e\uff08\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\uff09\u306e\u30c9\u30e1\u30a4\u30f3\u3067DKIM\u7f72\u540d\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u3001d=\u30bf\u30b0\u306b\u306f\u300cmail-service.com\u300d\u306e\u3088\u3046\u306a\u30c9\u30e1\u30a4\u30f3\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30d8\u30c3\u30c0From\u304c\u300cexample.com\u300d\u3067\u3042\u308c\u3070\u3001\u30c9\u30e1\u30a4\u30f3\u304c\u4e0d\u4e00\u81f4\u3068\u306a\u308aDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306fFail\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u3067<strong>\u30ab\u30b9\u30bf\u30e0DKIM\u7f72\u540d<\/strong>\u306e\u8a2d\u5b9a\u3092\u884c\u3044\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u79d8\u5bc6\u9375\u30fb\u516c\u958b\u9375\u30da\u30a2\u3092\u4f7f\u3063\u305fDKIM\u7f72\u540d\u3092\u6709\u52b9\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306eDNS\u306bDKIM\u516c\u958b\u9375\u30ec\u30b3\u30fc\u30c9\uff08TXT\u30ec\u30b3\u30fc\u30c9\uff09\u3092\u8ffd\u52a0\u3057\u3001\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u3067\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306ed=\u30bf\u30b0\u3092\u4f7f\u7528\u3059\u308b\u3088\u3046\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h3>DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u63a8\u5968\u3055\u308c\u308b\u7406\u7531<\/h3>\n<p>\u4e00\u822c\u7684\u306b\u3001DMARC\u306e\u8a8d\u8a3c\u306b\u304a\u3044\u3066\u306f<strong>DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u65b9\u304c\u63a8\u5968<\/strong>\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7406\u7531\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<p>SPF\u306f\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306b\u4f9d\u5b58\u3059\u308b\u305f\u3081\u3001\u30e1\u30fc\u30eb\u8ee2\u9001\u3084\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u306a\u3069\u3001\u9014\u4e2d\u3067\u9001\u4fe1\u5143IP\u304c\u5909\u308f\u308b\u30b7\u30ca\u30ea\u30aa\u3067\u306fSPF\u8a8d\u8a3c\u81ea\u4f53\u304c\u58ca\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001DKIM\u306f\u30e1\u30c3\u30bb\u30fc\u30b8\u30d8\u30c3\u30c0\u306b\u4ed8\u4e0e\u3055\u308c\u305f\u96fb\u5b50\u7f72\u540d\u306b\u57fa\u3065\u304f\u305f\u3081\u3001\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u3066\u3082\u7f72\u540d\u304c\u7dad\u6301\u3055\u308c\u3066\u3044\u308b\u9650\u308a\u8a8d\u8a3c\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<p>\u3082\u3061\u308d\u3093\u3001\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u306a\u3069\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u5185\u5bb9\u304c\u5909\u66f4\u3055\u308c\u308b\u5834\u5408\u306fDKIM\u7f72\u540d\u3082\u7121\u52b9\u5316\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4e00\u822c\u7684\u306a\u30e1\u30fc\u30eb\u8ee2\u9001\u3067\u306fDKIM\u306e\u65b9\u304c\u5805\u7262\u306b\u6a5f\u80fd\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001<strong>SPF\u3068DKIM\u4e21\u65b9\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u3066\u304a\u304f<\/strong>\u3053\u3068\u304c\u3001\u78ba\u5b9f\u306aDMARC\u8a8d\u8a3c\u306e\u305f\u3081\u306e\u9244\u5247\u3067\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/dkim\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2022\/09\/dkim1.jpg\" alt=\"\u3010\u56f3\u89e3\u3011DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4ed5\u7d44\u307f\u3068SPF\u30fbDMARC\u3068\u306e\u9055\u3044\u3092\u89e3\u8aac\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u3010\u56f3\u89e3\u3011DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4ed5\u7d44\u307f\u3068SPF\u30fbDMARC\u3068\u306e\u9055\u3044\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">DKIM\u3063\u3066\u3069\u3093\u306a\u4ed5\u7d44\u307f\uff1fGmail\u3084Outlook\u306b\u306f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u306e\uff1f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e1\u3064\u3067\u3042\u308bDKIM\u306e\u4ed5\u7d44\u307f\u3084\u5f79\u5272\u306b\u3064\u3044\u3066\u56f3\u89e3\u3057\u307e\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>relaxed\u30e2\u30fc\u30c9\u3068strict\u30e2\u30fc\u30c9\u306e\u9055\u3044<\/h2>\n<p>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306b\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u81f4\u5ea6\u5408\u3044\u3092\u5224\u5b9a\u3059\u308b\u300c\u30e2\u30fc\u30c9\u300d\u304c2\u7a2e\u985e\u3042\u308a\u307e\u3059\u3002<strong>relaxed\uff08\u7de9\u548c\uff09\u30e2\u30fc\u30c9<\/strong>\u3068<strong>strict\uff08\u53b3\u683c\uff09\u30e2\u30fc\u30c9<\/strong>\u3067\u3059\u3002<\/p>\n<h3>relaxed\u30e2\u30fc\u30c9\uff08aspf=r \/ adkim=r\uff09<\/h3>\n<p>relaxed\u30e2\u30fc\u30c9\u306f\u3001\u30d8\u30c3\u30c0From\u3068\u8a8d\u8a3c\u30c9\u30e1\u30a4\u30f3\u306e\u300c\u7d44\u7e54\u30c9\u30e1\u30a4\u30f3\uff08Apex Domain\uff09\u300d\u304c\u4e00\u81f4\u3057\u3066\u3044\u308c\u3070\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u6210\u7acb\u3068\u5224\u5b9a\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001<strong>\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u3066\u3082\u4e00\u81f4\u3068\u307f\u306a\u3055\u308c\u308b<\/strong>\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<p><strong>\u4f8b\uff1arelaxed\u30e2\u30fc\u30c9\u306e\u5224\u5b9a<\/strong><\/p>\n<p>\u30d8\u30c3\u30c0From\u304c\u300cnews@example.com\u300d\u3001\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u304c\u300cbounce@mail.example.com\u300d\u306e\u5834\u5408\u3001\u7d44\u7e54\u30c9\u30e1\u30a4\u30f3\u306f\u3069\u3061\u3089\u3082\u300cexample.com\u300d\u306a\u306e\u3067\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306fPass\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u3067\u30e2\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306frelaxed\u30e2\u30fc\u30c9\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>strict\u30e2\u30fc\u30c9\uff08aspf=s \/ adkim=s\uff09<\/h3>\n<p>strict\u30e2\u30fc\u30c9\u306f\u3001\u30d8\u30c3\u30c0From\u3068\u8a8d\u8a3c\u30c9\u30e1\u30a4\u30f3\u306e<strong>FQDN\uff08\u5b8c\u5168\u4fee\u98fe\u30c9\u30e1\u30a4\u30f3\u540d\uff09\u304c\u5b8c\u5168\u306b\u4e00\u81f4<\/strong>\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306e\u4f7f\u7528\u306f\u8a31\u5bb9\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p><strong>\u4f8b\uff1astrict\u30e2\u30fc\u30c9\u306e\u5224\u5b9a<\/strong><\/p>\n<p>\u30d8\u30c3\u30c0From\u304c\u300cnews@example.com\u300d\u3001\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u304c\u300cbounce@mail.example.com\u300d\u306e\u5834\u5408\u3001FQDN\u304c\u300cexample.com\u300d\u3068\u300cmail.example.com\u300d\u3067\u7570\u306a\u308b\u305f\u3081\u3001SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306fFail\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u3069\u3061\u3089\u306e\u30e2\u30fc\u30c9\u3092\u9078\u3076\u3079\u304d\u304b<\/h3>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u6bd4\u8f03\u9805\u76ee<\/th>\n<th>relaxed\u30e2\u30fc\u30c9<\/th>\n<th>strict\u30e2\u30fc\u30c9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30c9\u30e1\u30a4\u30f3\u4e00\u81f4\u306e\u5224\u5b9a<\/td>\n<td>\u7d44\u7e54\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u81f4\u3067\u53ef<\/td>\n<td>FQDN\u306e\u5b8c\u5168\u4e00\u81f4\u304c\u5fc5\u8981<\/td>\n<\/tr>\n<tr>\n<td>\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306e\u5229\u7528<\/td>\n<td>\u8a31\u5bb9\u3055\u308c\u308b<\/td>\n<td>\u8a31\u5bb9\u3055\u308c\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb<\/td>\n<td>\u6a19\u6e96\u7684<\/td>\n<td>\u9ad8\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u904b\u7528\u306e\u67d4\u8edf\u6027<\/td>\n<td>\u9ad8\u3044<\/td>\n<td>\u4f4e\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u63a8\u5968\u3055\u308c\u308b\u5834\u9762<\/td>\n<td>\u5c0e\u5165\u521d\u671f\u30fb\u8907\u6570\u30b5\u30fc\u30d3\u30b9\u5229\u7528<\/td>\n<td>\u9ad8\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u6307\u5b9a<\/td>\n<td>aspf=r \/ adkim=r\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09<\/td>\n<td>aspf=s \/ adkim=s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5c0e\u5165\u521d\u671f\u3084\u8907\u6570\u306e\u5916\u90e8\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u74b0\u5883\u3067\u306f\u3001\u307e\u305a<strong>relaxed\u30e2\u30fc\u30c9<\/strong>\u3067\u904b\u7528\u3092\u958b\u59cb\u3057\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u901a\u3058\u3066\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u306e\u304c\u4e00\u822c\u7684\u306a\u624b\u9806\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u6b63\u5f53\u306a\u9001\u4fe1\u5143\u3067\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5b89\u5b9a\u7684\u306bPass\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u6bb5\u968e\u3067\u3001strict\u30e2\u30fc\u30c9\u3078\u306e\u79fb\u884c\u3092\u691c\u8a0e\u3059\u308b\u306e\u304c\u5b9f\u52d9\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u3059\u3002<\/p>\n<p>\u91d1\u878d\u6a5f\u95a2\u3084\u5b98\u516c\u5e81\u306a\u3069\u3001\u9ad8\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u6c42\u3081\u3089\u308c\u308b\u7d44\u7e54\u3067\u306f\u3001strict\u30e2\u30fc\u30c9\u306e\u5c0e\u5165\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001strict\u30e2\u30fc\u30c9\u306b\u79fb\u884c\u3059\u308b\u969b\u306f\u3001\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u7d4c\u8def\uff08\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3001CRM\u3001MA\u30c4\u30fc\u30eb\u306a\u3069\uff09\u3067\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u78ba\u5b9f\u306bPass\u3059\u308b\u3053\u3068\u3092\u4e8b\u524d\u306b\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3068\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u306e\u6307\u5b9a<\/h2>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306f\u3001DNS\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u306e\u6307\u5b9a\u306f\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u5185\u306e\u30bf\u30b0\u3067\u884c\u3044\u307e\u3059\u3002<\/p>\n<h3>DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u57fa\u672c\u69cb\u6587<\/h3>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u5bfe\u8c61\u30c9\u30e1\u30a4\u30f3\u306eDNS\u306b\u300c_dmarc.\u30c9\u30e1\u30a4\u30f3\u540d\u300d\u3068\u3044\u3046\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<h4><strong>\u57fa\u672c\u7684\u306aDMARC\u30ec\u30b3\u30fc\u30c9\u306e\u4f8b\uff08\u76e3\u8996\u30e2\u30fc\u30c9\uff09<\/strong><\/h4>\n<pre><code>v=DMARC1; p=none; rua=mailto:dmarc-report@example.com<\/code><\/pre>\n<h4><strong>\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u305fDMARC\u30ec\u30b3\u30fc\u30c9\u306e\u4f8b<\/strong><\/h4>\n<pre><code>v=DMARC1; p=quarantine; aspf=r; adkim=s; rua=mailto:dmarc-report@example.com; ruf=mailto:dmarc-forensic@example.com; pct=100<\/code><\/pre>\n<h3>\u4e3b\u8981\u30bf\u30b0\u306e\u89e3\u8aac<\/h3>\n<p><strong>v=DMARC1<\/strong>\uff1aDMARC\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u793a\u3059\u5fc5\u9808\u30bf\u30b0\u3067\u3059\u3002<\/p>\n<p><strong>p=\uff08\u30dd\u30ea\u30b7\u30fc\uff09<\/strong>\uff1aDMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002none\uff08\u4f55\u3082\u3057\u306a\u3044\u30fb\u76e3\u8996\u306e\u307f\uff09\u3001quarantine\uff08\u9694\u96e2\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u884c\u304d\uff09\u3001reject\uff08\u62d2\u5426\u30fb\u914d\u4fe1\u30d6\u30ed\u30c3\u30af\uff09\u306e3\u6bb5\u968e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>aspf=<\/strong>\uff1aSPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u306e\u6307\u5b9a\u3067\u3059\u3002\u300cr\u300d\u306frelaxed\u3001\u300cs\u300d\u306fstrict\u3067\u3059\u3002\u7701\u7565\u6642\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u300cr\u300d\uff08relaxed\uff09\u3067\u3059\u3002<\/p>\n<p><strong>adkim=<\/strong>\uff1aDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30e2\u30fc\u30c9\u306e\u6307\u5b9a\u3067\u3059\u3002\u300cr\u300d\u306frelaxed\u3001\u300cs\u300d\u306fstrict\u3067\u3059\u3002\u7701\u7565\u6642\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u300cr\u300d\uff08relaxed\uff09\u3067\u3059\u3002<\/p>\n<p><strong>rua=<\/strong>\uff1aDMARC\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\uff08Aggregate\u30ec\u30dd\u30fc\u30c8\uff09\u306e\u9001\u4fe1\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6210\u529f\u30fb\u5931\u6557\u72b6\u6cc1\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306b\u5fc5\u305a\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>ruf=<\/strong>\uff1aDMARC\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u30ec\u30dd\u30fc\u30c8\uff08Failure\u30ec\u30dd\u30fc\u30c8\uff09\u306e\u9001\u4fe1\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u8a8d\u8a3c\u5931\u6557\u306e\u8a73\u7d30\u60c5\u5831\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u304c\u3001\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong>pct=<\/strong>\uff1aDMARC\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u7528\u3059\u308b\u30e1\u30fc\u30eb\u306e\u5272\u5408\uff08\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\uff09\u3067\u3059\u3002\u6bb5\u968e\u7684\u306b\u5c0e\u5165\u3059\u308b\u5834\u5408\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<h3>\u8a2d\u5b9a\u306e\u63a8\u5968\u624b\u9806<\/h3>\n<p>DMARC\u5c0e\u5165\u304b\u3089\u30dd\u30ea\u30b7\u30fc\u5f37\u5316\u307e\u3067\u306e\u63a8\u5968\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002\u307e\u305a\u3001SPF\u3068DKIM\u306e\u8a2d\u5b9a\u304c\u6b63\u3057\u304f\u5b8c\u4e86\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002DMARC\u306fSPF\u3068DKIM\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u57fa\u306b\u3057\u305f\u6280\u8853\u3067\u3042\u308b\u305f\u3081\u3001\u524d\u63d0\u3068\u306a\u308bSPF\u30fbDKIM\u306e\u8a2d\u5b9a\u304c\u9069\u5207\u3067\u306a\u3051\u308c\u3070\u6a5f\u80fd\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u6b21\u306b\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u300cp=none\u300d\u3067\u8a2d\u5b9a\u3057\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u53d7\u4fe1\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u3053\u306e\u6bb5\u968e\u3067\u306f\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u306b\u306f\u5f71\u97ff\u3092\u4e0e\u3048\u305a\u3001\u8a8d\u8a3c\u72b6\u6cc1\u306e\u53ef\u8996\u5316\u306e\u307f\u3092\u884c\u3044\u307e\u3059\u3002\u30ec\u30dd\u30fc\u30c8\u3092\u5206\u6790\u3057\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u6b63\u5f53\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u7d4c\u8def\u3092\u3059\u3079\u3066\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u30ec\u30dd\u30fc\u30c8\u306e\u5206\u6790\u7d50\u679c\u3092\u3082\u3068\u306b\u3001\u3059\u3079\u3066\u306e\u6b63\u5f53\u306a\u9001\u4fe1\u5143\u3067SPF\u30fbDKIM\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cPass\u3057\u3066\u3044\u308b\u72b6\u614b\u3092\u78ba\u8a8d\u3067\u304d\u305f\u3089\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u300cp=quarantine\u300d\u306b\u5f15\u304d\u4e0a\u3052\u307e\u3059\u3002\u3055\u3089\u306b\u5b89\u5b9a\u904b\u7528\u304c\u78ba\u8a8d\u3067\u304d\u305f\u3089\u300cp=reject\u300d\u3078\u79fb\u884c\u3059\u308b\u306e\u304c\u7406\u60f3\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002<\/p>\n<h2>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3059\u308b\u3088\u304f\u3042\u308b\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<p>DMARC\u8a8d\u8a3c\u306e\u5931\u6557\u539f\u56e0\u306e\u591a\u304f\u306f\u3001\u5b9f\u306f\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u4e0d\u4e00\u81f4\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002SPF\u3084DKIM\u306e\u8a2d\u5b9a\u30df\u30b9\u3060\u3051\u3067\u306a\u304f\u3001\u904b\u7528\u4e0a\u306e\u76f2\u70b9\u304c\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u5931\u6557\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u539f\u56e01\uff1a\u5916\u90e8\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a<\/h3>\n<p>\u591a\u304f\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3084MA\u30c4\u30fc\u30eb\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u3067SPF\u8a8d\u8a3c\u3084DKIM\u7f72\u540d\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30d8\u30c3\u30c0From\u306b\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u3066\u3082\u3001\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\u3084DKIM\u7f72\u540d\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u306a\u308b\u305f\u3081\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n<h4><strong>\u5bfe\u51e6\u6cd5<\/strong><\/h4>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u3001\u30ab\u30b9\u30bf\u30e0Return-Path\uff08\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\uff09\u3084\u30ab\u30b9\u30bf\u30e0DKIM\u7f72\u540d\u306e\u8a2d\u5b9a\u3092\u884c\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306eDNS\u306bCNAME\u30ec\u30b3\u30fc\u30c9\u3084TXT\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3001\u30b5\u30fc\u30d3\u30b9\u5074\u3067\u30c9\u30e1\u30a4\u30f3\u306e\u691c\u8a3c\u3092\u5b8c\u4e86\u3055\u305b\u307e\u3059\u3002<\/p>\n<h3>\u539f\u56e02\uff1a\u30e1\u30fc\u30eb\u8ee2\u9001\u306b\u3088\u308b\u8a8d\u8a3c\u306e\u7834\u640d<\/h3>\n<p>\u30e1\u30fc\u30eb\u304c\u5225\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u8ee2\u9001\u3055\u308c\u308b\u3068\u3001\u8ee2\u9001\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u9001\u4fe1\u5143SPF\u30ec\u30b3\u30fc\u30c9\u306b\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001SPF\u8a8d\u8a3c\u304cFail\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u8ee2\u9001\u6642\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u5185\u5bb9\uff08\u30d8\u30c3\u30c0\u306e\u8ffd\u52a0\u30fb\u5909\u66f4\u306a\u3069\uff09\u304c\u884c\u308f\u308c\u308b\u3068\u3001DKIM\u7f72\u540d\u3082\u7121\u52b9\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4><strong>\u5bfe\u51e6\u6cd5<\/strong><\/h4>\n<p>\u30e1\u30fc\u30eb\u8ee2\u9001\u306b\u3088\u308b\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u5931\u6557\u3092\u5b8c\u5168\u306b\u9632\u3050\u3053\u3068\u306f\u56f0\u96e3\u3067\u3059\u304c\u3001<strong>ARC\uff08Authenticated Received Chain\uff09<\/strong>\u3068\u3044\u3046\u6280\u8853\u304c\u4e2d\u7d99\u6642\u306e\u8a8d\u8a3c\u60c5\u5831\u3092\u4fdd\u6301\u3059\u308b\u624b\u6bb5\u3068\u3057\u3066\u6ce8\u76ee\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u73fe\u6642\u70b9\u3067\u306f\u3001DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u3057\u3063\u304b\u308a\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u6700\u3082\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u3067\u3059\u3002<\/p>\n<h3>\u539f\u56e03\uff1a\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306e\u53d6\u308a\u6271\u3044\u30df\u30b9<\/h3>\n<p>strict\u30e2\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u74b0\u5883\u3067\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305f\u5834\u5408\u306b\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3059\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30d8\u30c3\u30c0From\u304c\u300cnews@campaign.example.com\u300d\u3001DKIM\u7f72\u540d\u306ed=\u30bf\u30b0\u304c\u300cexample.com\u300d\u306e\u5834\u5408\u3001relaxed\u30e2\u30fc\u30c9\u3067\u306fPass\u3057\u307e\u3059\u304c\u3001strict\u30e2\u30fc\u30c9\u3067\u306fFail\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4><strong>\u5bfe\u51e6\u6cd5<\/strong><\/h4>\n<p>\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u304c\u3042\u308b\u5834\u5408\u306f\u3001relaxed\u30e2\u30fc\u30c9\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3059\u308b\u304b\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306bDKIM\u7f72\u540d\u3092\u8a2d\u5b9a\u3057\u3066FQDN\u3092\u5b8c\u5168\u4e00\u81f4\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u539f\u56e04\uff1a\u8907\u6570\u306e\u9001\u4fe1\u7d4c\u8def\u306e\u7ba1\u7406\u4e0d\u5099<\/h3>\n<p>\u4f01\u696d\u3067\u306f\u3001\u793e\u5185\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3001CRM\u3001MA\u30c4\u30fc\u30eb\u3001\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u306e\u81ea\u52d5\u8fd4\u4fe1\u306a\u3069\u3001\u8907\u6570\u306e\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u4e00\u90e8\u306e\u30b7\u30b9\u30c6\u30e0\u3067SPF\u30fbDKIM\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u8a2d\u5b9a\u304c\u6f0f\u308c\u3066\u3044\u308b\u3068\u3001\u305d\u306e\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u9001\u4fe1\u3055\u308c\u308b\u30e1\u30fc\u30eb\u306eDMARC\u8a8d\u8a3c\u304cFail\u3057\u307e\u3059\u3002<\/p>\n<h4><strong>\u5bfe\u51e6\u6cd5<\/strong><\/h4>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\uff08rua\u30ec\u30dd\u30fc\u30c8\uff09\u3092\u5206\u6790\u3057\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u6f0f\u308c\u306a\u304fSPF\u30ec\u30b3\u30fc\u30c9\u3078\u306e\u8ffd\u52a0\u3068DKIM\u7f72\u540d\u306e\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h3>\u539f\u56e05\uff1aDMARC\u30ec\u30b3\u30fc\u30c9\u306e\u69cb\u6587\u30df\u30b9<\/h3>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u81ea\u4f53\u306b\u8aa4\u3063\u305f\u8a18\u8ff0\u304c\u3042\u308b\u3068\u3001\u6b63\u3057\u304f\u8a55\u4fa1\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u304f\u3042\u308b\u30df\u30b9\u3068\u3057\u3066\u3001\u30bf\u30b0\u9593\u306e\u30bb\u30df\u30b3\u30ed\u30f3\u306e\u4e0d\u8db3\u3001\u30b9\u30da\u30fc\u30b9\u306e\u4e0d\u6b63\u3001\u7121\u52b9\u306a\u30bf\u30b0\u5024\u306e\u4f7f\u7528\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4><strong>\u5bfe\u51e6\u6cd5<\/strong><\/h4>\n<p>\u30aa\u30f3\u30e9\u30a4\u30f3\u306eDMARC\u30ec\u30b3\u30fc\u30c9\u691c\u8a3c\u30c4\u30fc\u30eb\uff08MXToolbox\u3001DMARC Analyzer\u306a\u3069\uff09\u3092\u4f7f\u7528\u3057\u3066\u3001\u30ec\u30b3\u30fc\u30c9\u306e\u69cb\u6587\u30a8\u30e9\u30fc\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<h2>DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u6d3b\u7528\u3057\u305f\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u72b6\u6cc1\u306e\u76e3\u8996<\/h2>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u72b6\u6cc1\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u60c5\u5831\u6e90\u3067\u3059\u3002\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6210\u529f\u30fb\u5931\u6557\u3092\u7d99\u7d9a\u7684\u306b\u76e3\u8996\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u306e\u65e9\u671f\u767a\u898b\u3068\u5bfe\u51e6\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u7a2e\u985e<\/h3>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u306b\u306f\u3001<strong>\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\uff08RUA\u30ec\u30dd\u30fc\u30c8\uff09<\/strong>\u3068<strong>\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u30ec\u30dd\u30fc\u30c8\uff08RUF\u30ec\u30dd\u30fc\u30c8\uff09<\/strong>\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\u306f\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u304b\u3089\u65e5\u6b21\u3067\u9001\u4fe1\u3055\u308c\u308bXML\u5f62\u5f0f\u306e\u30ec\u30dd\u30fc\u30c8\u3067\u3059\u3002\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3054\u3068\u306e\u8a8d\u8a3c\u7d50\u679c\uff08SPF\u30fbDKIM\u306e\u8a8d\u8a3c\u304a\u3088\u3073\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6210\u5426\uff09\u3001\u9001\u4fe1\u901a\u6570\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306e\u9069\u7528\u7d50\u679c\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u30ec\u30dd\u30fc\u30c8\u306f\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u500b\u5225\u306e\u30e1\u30fc\u30eb\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u306e\u89b3\u70b9\u304b\u3089\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u304c\u9650\u3089\u308c\u3066\u304a\u308a\u3001\u3059\u3079\u3066\u306e\u30b1\u30fc\u30b9\u3067\u53d6\u5f97\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30ec\u30dd\u30fc\u30c8\u306e\u5206\u6790\u30dd\u30a4\u30f3\u30c8<\/h3>\n<p>DMARC\u30ec\u30dd\u30fc\u30c8\u3092XML\u5f62\u5f0f\u306e\u307e\u307e\u8aad\u307f\u89e3\u304f\u306e\u306f\u73fe\u5b9f\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u7121\u6599\u306eDMARC\u30ec\u30dd\u30fc\u30c8\u5206\u6790\u30c4\u30fc\u30eb\uff08DMARC Analyzer\u3001Postmark DMARC\u3001dmarcian\u306a\u3069\uff09\u3092\u6d3b\u7528\u3057\u3066\u3001\u8996\u899a\u7684\u306b\u78ba\u8a8d\u3067\u304d\u308b\u74b0\u5883\u3092\u6574\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5206\u6790\u6642\u306b\u6ce8\u76ee\u3059\u3079\u304d\u4e3b\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cFail\u306b\u306a\u3063\u3066\u3044\u308b\u9001\u4fe1\u5143IP\u306e\u7279\u5b9a\u3067\u3059\u3002\u4e0d\u660e\u306aIP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u306e\u9001\u4fe1\u304c\u3042\u308b\u5834\u5408\u3001\u306a\u308a\u3059\u307e\u3057\u306e\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001\u81ea\u793e\u3067\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3084\u30b7\u30b9\u30c6\u30e0\u306eIP\u30a2\u30c9\u30ec\u30b9\u3067\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cFail\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3>\u6bb5\u968e\u7684\u306a\u30dd\u30ea\u30b7\u30fc\u5f37\u5316\u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/h3>\n<p>DMARC\u306e\u30dd\u30ea\u30b7\u30fc\u3092\u6bb5\u968e\u7684\u306b\u5f37\u5316\u3059\u308b\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6d41\u308c\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u30d5\u30a7\u30fc\u30ba1\uff081\u301c4\u9031\u9593\uff09\uff1a<\/strong> p=none \u3067\u76e3\u8996\u3092\u958b\u59cb\u3057\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u53ce\u96c6\u30fb\u5206\u6790\u3057\u307e\u3059\u3002\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u68da\u5378\u3057\u3057\u3001\u8a8d\u8a3c\u72b6\u6cc1\u3092\u628a\u63e1\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30d5\u30a7\u30fc\u30ba2\uff082\u301c8\u9031\u9593\uff09\uff1a<\/strong> \u30ec\u30dd\u30fc\u30c8\u3092\u3082\u3068\u306b\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cFail\u3057\u3066\u3044\u308b\u9001\u4fe1\u5143\u306eSPF\u30fbDKIM\u8a2d\u5b9a\u3092\u4fee\u6b63\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u6b63\u5f53\u306a\u9001\u4fe1\u5143\u3067\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cPass\u3059\u308b\u307e\u3067\u8abf\u6574\u3092\u7e70\u308a\u8fd4\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30d5\u30a7\u30fc\u30ba3\uff08\u6bb5\u968e\u79fb\u884c\uff09\uff1a<\/strong> p=quarantine\uff08pct=25\u306a\u3069\u4f4e\u3044\u5272\u5408\u304b\u3089\u958b\u59cb\uff09\u306b\u79fb\u884c\u3057\u3001\u8a8d\u8a3c\u5931\u6557\u30e1\u30fc\u30eb\u306e\u9694\u96e2\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u554f\u984c\u304c\u306a\u3051\u308c\u3070pct\u3092\u6bb5\u968e\u7684\u306b\u4e0a\u3052\u3001\u6700\u7d42\u7684\u306bp=reject\u3078\u79fb\u884c\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div>\n<h2>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u95a2\u4fc2<\/h2>\n<p>2024\u5e742\u6708\u306bGoogle\u304c\u65bd\u884c\u3057\u305f\u300c\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u300d\u306f\u3001DMARC\u5bfe\u5fdc\u306e\u91cd\u8981\u6027\u3092\u4e00\u6c17\u306b\u9ad8\u3081\u307e\u3057\u305f\u3002\u3053\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u95a2\u4fc2\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<h3>Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u6c42\u3081\u308bDMARC\u5bfe\u5fdc<\/h3>\n<p>Google\u306f\u3001Gmail\u5b9b\u306b1\u65e55,000\u901a\u4ee5\u4e0a\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3066\u3001SPF\u30fbDKIM\u30fbDMARC\u306e\u3059\u3079\u3066\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3092\u8981\u4ef6\u3068\u3057\u3066\u3044\u307e\u3059\u3002DMARC\u8a8d\u8a3c\u304cPass\u3057\u306a\u3044\u30e1\u30fc\u30eb\u306f\u3001Gmail\u3078\u306e\u5230\u9054\u7387\u304c\u5927\u5e45\u306b\u4f4e\u4e0b\u3059\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u6700\u4f4e\u3067\u3082\u300cp=none\u300d\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u3042\u304f\u307e\u3067\u6700\u4f4e\u8981\u4ef6\u3067\u3059\u3002\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3068\u3057\u3066\u672c\u683c\u7684\u306bDMARC\u3092\u6d3b\u7528\u3059\u308b\u306b\u306f\u3001\u300cp=quarantine\u300d\u4ee5\u4e0a\u306e\u30dd\u30ea\u30b7\u30fc\u3078\u306e\u79fb\u884c\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/download\/gmail-guideline-5\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/01\/gmail_bunner.png\" alt=\"Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u89e3\u8aac\uff06\u5bfe\u5fdc\u30ac\u30a4\u30c9\u30d6\u30c3\u30af\" width=\"90\" height=\"59\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u89e3\u8aac\uff06\u5bfe\u5fdc\u30ac\u30a4\u30c9\u30d6\u30c3\u30af<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u9001\u4fe1\u8005 \u30ac\u30a4\u30c9\u30e9\u30a4\u30f3 \u89e3\u8aac\uff06\u5bfe\u5fdc\u65b9\u6cd5 \u5bfe\u5fdc\u65b9\u6cd5\u3082\u8a18\u8f09\u3057\u305f\u30ac\u30a4\u30c9\u30d6\u30c3\u30af\u3067\u3059\uff01 \u3053\u306e\u8cc7\u6599\u3067\u5206\u304b\u308b\u3053\u3068 Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u89e3\u8aac\uff06\u5bfe\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>BIMI\u5bfe\u5fdc\u306e\u524d\u63d0\u6761\u4ef6\u3068\u3057\u3066\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/h3>\n<p>BIMI\uff08Brand Indicators for Message Identification\uff09\u306f\u3001DMARC\u8a8d\u8a3c\u306b\u6210\u529f\u3057\u305f\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u3001\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u4f01\u696d\u306e\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u3092\u8868\u793a\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002Gmail\u3067\u306f\u3001BIMI\u306b\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u540d\u306e\u6a2a\u306b\u9752\u3044\u8a8d\u8a3c\u30c1\u30a7\u30c3\u30af\u30de\u30fc\u30af\uff08Verified\u30d0\u30c3\u30b8\uff09\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>BIMI\u306e\u5c0e\u5165\u306b\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u304c\u300cp=quarantine\u300d\u4ee5\u4e0a\u3067\u3042\u308b\u3053\u3068\u304c\u524d\u63d0\u6761\u4ef6\u3067\u3059\u3002\u3064\u307e\u308a\u3001BIMI\u3092\u6d3b\u7528\u3057\u3066\u30d6\u30e9\u30f3\u30c9\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u306f\u3001DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u78ba\u5b9f\u306bPass\u3055\u305b\u305f\u4e0a\u3067\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4eca\u5f8c\u3001\u30e1\u30fc\u30eb\u3092\u6d3b\u7528\u3057\u305f\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001BIMI\u306b\u3088\u308b\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u8868\u793a\u306f\u53d7\u4fe1\u8005\u306e\u4fe1\u983c\u7372\u5f97\u306b\u5927\u304d\u304f\u8ca2\u732e\u3059\u308b\u8981\u7d20\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u306e\u305f\u3081\u306b\u3082\u3001DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6b63\u3057\u3044\u8a2d\u5b9a\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/download\/bimi-doc\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/02\/bimi_doc1.png\" alt=\"BIMI\u8cc7\u6599\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\" width=\"90\" height=\"51\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">BIMI\u8cc7\u6599\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/div>\n    <div class=\"blogcard_excerpt\">BIMI\u5b8c\u5168\u30ac\u30a4\u30c9\u7121\u6599\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9 \u3053\u306e\u8cc7\u6599\u3067\u308f\u304b\u308b\u3053\u3068 BIMI\u3068\u306f? BIMI\u5c0e\u5165\u306e\u30e1\u30ea\u30c3\u30c8 BIMI\u5c0e\u5165\u307e\u3067\u306e\u30b9\u30c6\u30c3\u30d7 SPF\/DKIM\/\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u3092\u9ad8\u3081\u308b\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h2>\n<p>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u8a2d\u5b9a\u3084\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u9069\u5207\u306b\u884c\u3046\u3053\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u8a8d\u8a3c\u6280\u8853\u306e\u8a2d\u5b9a\u30fb\u7ba1\u7406\u3092\u81ea\u793e\u306e\u30ea\u30bd\u30fc\u30b9\u3060\u3051\u3067\u884c\u3046\u306e\u306f\u5bb9\u6613\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001SPF\u30fbDKIM\u30fbDMARC\u306e\u8a8d\u8a3c\u306b\u5bfe\u5fdc\u3057\u305f\u74b0\u5883\u3092\u52b9\u7387\u7684\u306b\u6574\u5099\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u5bfe\u5fdc\u3060\u3051\u3067\u306a\u304f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u54c1\u8cea\u5168\u4f53\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u57fa\u76e4\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>SPF\u30fbDKIM\u30fbDMARC\u3078\u306e\u6a19\u6e96\u5bfe\u5fdc\u306b\u3088\u308a\u3001\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3068\u5230\u9054\u7387\u5411\u4e0a\u3092\u5b9f\u73fe<\/li>\n<li>\u9ad8\u3044\u9001\u4fe1\u8005\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306eIP\u30a2\u30c9\u30ec\u30b9\u7ba1\u7406\u304c\u4e0d\u8981<\/li>\n<li>Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3078\u306e\u5bfe\u5fdc\u3092\u542b\u3080\u3001\u6700\u65b0\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u57fa\u6e96\u306b\u6e96\u62e0<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u81ea\u793e\u3067\u4e00\u304b\u3089\u69cb\u7bc9\u30fb\u904b\u7528\u3059\u308b\u306e\u306f\u6280\u8853\u7684\u306b\u3082\u30b3\u30b9\u30c8\u7684\u306b\u3082\u5927\u304d\u306a\u8ca0\u62c5\u3067\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u7279\u5316\u3057\u305f\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u672c\u6765\u6ce8\u529b\u3059\u3079\u304d\u30e1\u30fc\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8cea\u3084\u914d\u4fe1\u6226\u7565\u306b\u96c6\u4e2d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/h3>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/07\/blastmail-top.jpg\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1200\" height=\"630\" class=\"alignnone wp-image-15955 size-full\" \/><\/a><\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\uff08blastmail\uff09\u306f\u300115\u5e74\u9023\u7d9a\u3067\u5c0e\u5165\u793e\u6570\u30b7\u30a7\u30a2No.1\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\u56fd\u5185\u6700\u5927\u7d1a\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u300227,000\u793e\u4ee5\u4e0a\u306e\u5c0e\u5165\u5b9f\u7e3e\u306b\u88cf\u6253\u3061\u3055\u308c\u305f\u9ad8\u3044\u5230\u9054\u7387\u3068\u3001\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u76f4\u611f\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u7ba1\u7406\u753b\u9762\u304c\u6700\u5927\u306e\u7279\u9577\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u5bfe\u7b56\uff08SPF\/DKIM\u5bfe\u5fdc\uff09<\/strong>: Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u57fa\u76e4\u3067\u3001\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b<\/li>\n<li><strong>\u52b9\u679c\u6e2c\u5b9a<\/strong>: \u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u628a\u63e1\u3057\u3001\u6b21\u306e\u65bd\u7b56\u306b\u6d3b\u304b\u305b\u308b<\/li>\n<li><strong>\u30d5\u30a3\u30eb\u30bf\u914d\u4fe1\uff08\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\uff09<\/strong>: \u8aad\u8005\u306e\u5c5e\u6027\u3084\u884c\u52d5\u5c65\u6b74\u3067\u30b0\u30eb\u30fc\u30d7\u3092\u4f5c\u6210\u3057\u3001\u6700\u9069\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u914d\u4fe1<\/li>\n<li><strong>\u696d\u754c\u6700\u5b89\u30af\u30e9\u30b9\u306e\u6599\u91d1<\/strong>: \u6708\u984d4,000\u5186\u301c\u3067\u5927\u898f\u6a21\u914d\u4fe1\u3082\u4f4e\u30b3\u30b9\u30c8\u3067\u5b9f\u73fe\uff08\u914d\u4fe1\u901a\u6570\u7121\u5236\u9650\uff09<\/li>\n<\/ul>\n<\/div>\n<p>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u542b\u3080\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3078\u306e\u5bfe\u5fdc\u306f\u3082\u3061\u308d\u3093\u3001\u9ad8\u3044\u914d\u4fe1\u901f\u5ea6\u3068\u5230\u9054\u7387\u3092\u4e21\u7acb\u3057\u3066\u304a\u308a\u3001\u521d\u3081\u3066\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u59cb\u3081\u308b\u4f01\u696d\u304b\u3089\u5927\u898f\u6a21\u914d\u4fe1\u3092\u884c\u3046\u4f01\u696d\u307e\u3067\u5e45\u5e83\u304f\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3067\u4f7f\u3044\u52dd\u624b\u3092\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> \u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\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><\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastengine\u300d<\/h3>\n<p><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\"><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 wp-image-19575 size-full\" \/><\/a><\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff08blastengine\uff09\u306f\u3001SMTP\u30ea\u30ec\u30fc\u3084API\u3067\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u3068\u9023\u643a\u3059\u308b\u3053\u3068\u3067\u3001\u4e00\u6589\u914d\u4fe1\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3092\u7c21\u5358\u306b\u884c\u3048\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u904b\u7528\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306f\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u5074\u3067\u884c\u3046\u305f\u3081\u3001\u5e38\u306b\u9ad8\u3044IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u696d\u52d9\u304b\u3089\u89e3\u653e\u3057\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>99%\u4ee5\u4e0a\u306e\u9ad8\u3044\u30e1\u30fc\u30eb\u5230\u9054\u7387<\/strong>: \u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u30fbISP\u3078\u306e\u500b\u5225\u9001\u4fe1\u30ed\u30b8\u30c3\u30af\u3067\u78ba\u5b9f\u306b\u5c4a\u3051\u308b<\/li>\n<li><strong>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc<\/strong>: \u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u7d44\u307f\u8fbc\u307f\u304c\u5bb9\u6613\u3067\u3001\u6700\u77ed\u5f53\u65e5\u304b\u3089\u5229\u7528\u958b\u59cb\u53ef\u80fd<\/li>\n<li><strong>SPF\/DKIM\/DMARC\u5bfe\u5fdc<\/strong>: \u6700\u65b0\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u6280\u8853\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u56de\u907f<\/li>\n<li><strong>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc<\/strong>: \u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u904b\u7528\u8ca0\u8377\u3092\u5927\u5e45\u306b\u524a\u6e1b<\/li>\n<li><strong>\u696d\u754c\u6700\u5b89\u30af\u30e9\u30b9\u306e\u6599\u91d1<\/strong>: \u521d\u671f\u8cbb\u7528\u7121\u6599\u3001\u6708\u984d3,000\u5186\u301c\u3067\u5927\u91cf\u914d\u4fe1\u3082\u4f4e\u30b3\u30b9\u30c8\u3067\u5b9f\u73fe<\/li>\n<\/ul>\n<\/div>\n<p>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u9023\u643a\u306b\u3088\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u57fa\u76e4\u306e\u5f37\u5316\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u6700\u9069\u306a\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u5165\u529b\u306e\u307f\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u304c\u53ef\u80fd\u3067\u3059\u306e\u3067\u3001\u307e\u305a\u306f\u6c17\u8efd\u306b\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastengine.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> blastengine\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\">https:\/\/blastengine.jp\/<\/a><\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u3001SPF\u30fbDKIM\u306e\u8a8d\u8a3c\u7d50\u679c\u3068\u30d8\u30c3\u30c0From\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u81f4\u6027\u3092\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3042\u308a\u3001DMARC\u8a8d\u8a3c\u3092Pass\u3059\u308b\u305f\u3081\u306e\u6838\u5fc3\u7684\u306a\u8981\u7d20\u3067\u3059\u3002<\/p>\n<p>SPF\u3084DKIM\u306e\u8a8d\u8a3c\u304c\u6280\u8853\u7684\u306bPass\u3057\u3066\u3044\u3066\u3082\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u6210\u7acb\u3057\u3066\u3044\u306a\u3051\u308c\u3070DMARC\u8a8d\u8a3c\u306fFail\u3068\u306a\u308a\u307e\u3059\u3002\u7279\u306b\u5916\u90e8\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30ab\u30b9\u30bf\u30e0Return-Path\u3084\u30ab\u30b9\u30bf\u30e0DKIM\u7f72\u540d\u306e\u8a2d\u5b9a\u304c\u5fc5\u9808\u3067\u3059\u3002relaxed\u30e2\u30fc\u30c9\u3068strict\u30e2\u30fc\u30c9\u306e\u9055\u3044\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u3001\u81ea\u793e\u306e\u74b0\u5883\u306b\u9069\u3057\u305f\u30e2\u30fc\u30c9\u3092\u9078\u629e\u3057\u3001DMARC\u30ec\u30dd\u30fc\u30c8\u3092\u6d3b\u7528\u3057\u3066\u8a8d\u8a3c\u72b6\u6cc1\u3092\u7d99\u7d9a\u7684\u306b\u76e3\u8996\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u6b21\u306b\u3084\u308b\u3079\u304d\u5177\u4f53\u7684\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u306f\u4ee5\u4e0b\u306e3\u3064\u3067\u3059\u3002<\/p>\n<p><strong>1. \u73fe\u72b6\u78ba\u8a8d\uff1a<\/strong> \u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30ec\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u3001\u30ec\u30dd\u30fc\u30c8\u53d7\u4fe1\u5148\uff08rua\uff09\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<p><strong>2. \u9001\u4fe1\u5143\u306e\u68da\u5378\u3057\uff1a<\/strong> \u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30b7\u30b9\u30c6\u30e0\u30fb\u30b5\u30fc\u30d3\u30b9\u3092\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7\u3057\u3001\u5404\u9001\u4fe1\u5143\u306eSPF\u30fbDKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<p><strong>3. \u4fee\u6b63\u3068\u5f37\u5316\uff1a<\/strong> \u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cFail\u3057\u3066\u3044\u308b\u9001\u4fe1\u5143\u306e\u8a2d\u5b9a\u3092\u4fee\u6b63\u3057\u3001\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u3067DMARC\u8a8d\u8a3c\u304cPass\u3059\u308b\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u305f\u4e0a\u3067\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u6bb5\u968e\u7684\u306b\u5f37\u5316\u3059\u308b\u3002<\/p>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aDMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0From\uff08\u53d7\u4fe1\u8005\u306b\u8868\u793a\u3055\u308c\u308b\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\uff09\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u3001SPF\u3084DKIM\u3067\u8a8d\u8a3c\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u3053\u306e\u4e00\u81f4\u304c\u6210\u7acb\u3057\u306a\u3051\u308c\u3070\u3001SPF\u3084DKIM\u306e\u8a8d\u8a3c\u81ea\u4f53\u304cPass\u3057\u3066\u3044\u3066\u3082DMARC\u8a8d\u8a3c\u306f\u5931\u6557\u3057\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">SPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aSPF\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u30d8\u30c3\u30c0From\u30c9\u30e1\u30a4\u30f3\u3068\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\uff08Return-Path\uff09\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u81f4\u3092\u78ba\u8a8d\u3057\u3001DKIM\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306f\u30d8\u30c3\u30c0From\u30c9\u30e1\u30a4\u30f3\u3068DKIM\u7f72\u540d\u306ed=\u30bf\u30b0\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u81f4\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002DMARC\u3067\u306f\u3069\u3061\u3089\u304b\u4e00\u65b9\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cPass\u3057\u3066\u3044\u308c\u3070\u8a8d\u8a3c\u304c\u6210\u529f\u3057\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">relaxed\u30e2\u30fc\u30c9\u3068strict\u30e2\u30fc\u30c9\u306f\u3069\u3061\u3089\u3092\u9078\u3079\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u5c0e\u5165\u521d\u671f\u3084\u8907\u6570\u306e\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u74b0\u5883\u3067\u306f\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306e\u5229\u7528\u3092\u8a31\u5bb9\u3059\u308brelaxed\u30e2\u30fc\u30c9\u304b\u3089\u59cb\u3081\u308b\u306e\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u904b\u7528\u304c\u5b89\u5b9a\u3057\u3001\u3059\u3079\u3066\u306e\u9001\u4fe1\u5143\u3067\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304cPass\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u305f\u6bb5\u968e\u3067\u3001strict\u30e2\u30fc\u30c9\u3078\u306e\u79fb\u884c\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u5916\u90e8\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u3068\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u5931\u6557\u3059\u308b\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u591a\u304f\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u3067SPF\u8a8d\u8a3c\u3084DKIM\u7f72\u540d\u3092\u884c\u3044\u307e\u3059\u3002\u30d8\u30c3\u30c0From\u304c\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3067\u3082\u3001\u8a8d\u8a3c\u30c9\u30e1\u30a4\u30f3\u304c\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u5143\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u306a\u308b\u305f\u3081\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304c\u4e0d\u4e00\u81f4\u3068\u306a\u308a\u307e\u3059\u3002\u30ab\u30b9\u30bf\u30e0Return-Path\u3084\u30ab\u30b9\u30bf\u30e0DKIM\u7f72\u540d\u306e\u8a2d\u5b9a\u3067\u89e3\u6c7a\u53ef\u80fd\u3067\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aDMARC\u30ec\u30b3\u30fc\u30c9\u306brua=\u30bf\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u53d7\u4fe1\u5074\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u304b\u3089DMARC\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\u304c\u9001\u3089\u308c\u3066\u304d\u307e\u3059\u3002\u3053\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u5206\u6790\u3059\u308c\u3070\u3001\u9001\u4fe1\u5143\u3054\u3068\u306eSPF\u30fbDKIM\u306e\u8a8d\u8a3c\u7d50\u679c\u3084\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6210\u5426\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u7121\u6599\u306eDMARC\u30ec\u30dd\u30fc\u30c8\u5206\u6790\u30c4\u30fc\u30eb\u3092\u6d3b\u7528\u3059\u308b\u3068\u52b9\u7387\u7684\u3067\u3059\u3002<\/dd>\n<\/dl><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u300cSPF\u3092\u8a2d\u5b9a\u3057\u305f\u300d\u300cDKIM\u3082\u5c0e\u5165\u3057\u305f\u300d\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001DMARC\u8a8d&#8230;<\/p>\n","protected":false},"author":8,"featured_media":21437,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-21435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-spam"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/21435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/comments?post=21435"}],"version-history":[{"count":4,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/21435\/revisions"}],"predecessor-version":[{"id":21439,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/21435\/revisions\/21439"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media\/21437"}],"wp:attachment":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media?parent=21435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/categories?post=21435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/tags?post=21435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}