{"id":3626,"date":"2020-05-14T18:08:04","date_gmt":"2020-05-14T09:08:04","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=3626"},"modified":"2026-06-29T19:32:51","modified_gmt":"2026-06-29T10:32:51","slug":"spf-record","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/spam\/spf-record","title":{"rendered":"SPF\uff08Sender Policy Framework\uff09\u3068\u306f\uff1f\uff5c\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u30fbSPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/05\/SPF_banner.png\" alt=\"SPF\uff08Sender Policy Framework\uff09\u3068\u306f\uff1f\" width=\"1734\" height=\"907\" class=\"alignnone size-full wp-image-22377\" \/><\/p>\n<p><strong>SPF\u3068\u306f\u3001\u300c\u3053\u306e\u30e1\u30fc\u30eb\u306f\u6b63\u3057\u3044\u9001\u4fe1\u5143\u304b\u3089\u9001\u3089\u308c\u3066\u3044\u307e\u3059\u300d\u3068\u53d7\u4fe1\u5074\u306b\u8a3c\u660e\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f<\/strong>\u306e\u3053\u3068\u3067\u3059\u3002\u300cSender Policy Framework\u300d\u306e\u7565\u3067\u3001\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u3050<strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853<\/strong>\u306e\u3072\u3068\u3064\u3067\u3059\u3002<\/p>\n<p>SPF\u306f\u3001DKIM\u30fbDMARC\u3068\u4e26\u3073\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u306e\u300c\u571f\u53f0\u300d\u306b\u3042\u305f\u308a\u307e\u3059\u30022024\u5e74\u306b\u884c\u308f\u308c\u305fGmail\u3084Yahoo!\u30e1\u30fc\u30eb\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u4e3b\u8981\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5f37\u5316\u306b\u3088\u308a\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u30e1\u30fc\u30eb\u3092\u5229\u7528\u3059\u308b\u307b\u307c\u3059\u3079\u3066\u306e\u4f01\u696d\u306b\u3068\u3063\u3066\u3001<strong>SPF\u306e\u8a2d\u5b9a\u306f\u5fc5\u9808<\/strong>\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001SPF\u3068\u306f\u4f55\u304b\u3068\u3044\u3046\u57fa\u672c\u304b\u3089\u3001SPF\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u30fb\u8a2d\u5b9a\u30fb\u78ba\u8a8d\u65b9\u6cd5\u3001\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u306e\u5bfe\u51e6\u6cd5\u307e\u3067\u3092\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/01\/bm_banner_big_mailsystem_1200x628.png\" alt=\"blastmail\u306e\u30d0\u30ca\u30fc\" width=\"1200\" height=\"629\" class=\"alignnone wp-image-19829 size-full\" \/><\/a><\/p>\n<h2>SPF\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u306e\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u3050\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853<\/h2>\n<p>SPF\uff08Sender Policy Framework\uff09\u3068\u306f\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u304c\u6b63\u898f\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u3089\u308c\u305f\u3082\u306e\u304b\u3092\u53d7\u4fe1\u5074\u304c\u691c\u8a3c\u3059\u308b\u305f\u3081\u306e\u3001<strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c<\/strong>\u306e\u3072\u3068\u3064\u3067\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u306e\u5dee\u51fa\u4eba\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u6280\u8853\u7684\u306b\u306f\u8ab0\u3067\u3082\u507d\u88c5\u304c\u3067\u304d\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u305d\u3053\u3067SPF\u3067\u306f\u3001<strong>\u300c\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u306f\u3001\u3053\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u3089\u308c\u308b\u300d<\/strong>\u3068\u3044\u3046\u60c5\u5831\u3092\u3042\u3089\u304b\u3058\u3081\u516c\u958b\u3057\u3066\u304a\u304d\u3001\u53d7\u4fe1\u8005\u5074\u304c\u305d\u306e\u60c5\u5831\u3068\u5b9f\u969b\u306e\u9001\u4fe1\u5143\u3092\u7167\u5408\u3057\u307e\u3059\u3002\u4e00\u81f4\u3059\u308c\u3070\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3001\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u3059\u307e\u3057\u306e\u7591\u3044\u3042\u308a\u3001\u3068\u5224\u65ad\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/spoofed-email\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/07\/image1.png\" alt=\"\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u5dee\u51fa\u4eba\u304c\u81ea\u5206\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u306f\u306a\u305c\uff1f\u306a\u308a\u3059\u307e\u3057\u306e\u4ed5\u7d44\u307f\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\u3057\u307e\u3059\" width=\"90\" height=\"60\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u5dee\u51fa\u4eba\u304c\u81ea\u5206\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u306f\u306a\u305c\uff1f\u306a\u308a\u3059\u307e\u3057\u306e\u4ed5\u7d44\u307f\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\u3057\u307e\u3059<\/div>\n    <div class=\"blogcard_excerpt\">\u73fe\u4ee3\u3067\u306f\u3001\u793e\u5185\u5916\u3092\u554f\u308f\u305a\u30c6\u30ad\u30b9\u30c8\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u91cd\u8981\u6027\u306f\u5897\u3059\u3070\u304b\u308a\u3067\u3059\u3002 \u30c1\u30e3\u30c3\u30c8\u30c4\u30fc\u30eb\u304c\u666e\u53ca\u3057\u305f\u73fe\u5728\u3067\u3082\u3001\u30d3\u30b8\u30cd\u30b9\u9023\u7d61\u306e\u4e3b\u5f79\u306f\u3084\u306f\u308a\u300c\u30e1\u30fc\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<p><!-- ============================================================ --><\/p>\n<h2>SPF\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>SPF\u8a8d\u8a3c\u306f\u3001\u9001\u4fe1\u5074\u3068\u53d7\u4fe1\u5074\u306e\u5f79\u5272\u5206\u62c5\u3067\u6210\u308a\u7acb\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30e1\u30fc\u30eb\u304c\u9001\u3089\u308c\u3066\u304b\u3089\u8a8d\u8a3c\u3055\u308c\u308b\u307e\u3067\u306e\u6d41\u308c\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/spf.png\" alt=\"SPF\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\" width=\"1536\" height=\"1024\" class=\"alignnone size-full wp-image-22370\" style=\"border: 1px solid #cccccc;\" \/><\/p>\n<h3>\u9001\u4fe1\u5074\uff1aDNS\u306bSPF\u30ec\u30b3\u30fc\u30c9\u3092\u516c\u958b\u3059\u308b<\/h3>\n<p>\u9001\u4fe1\u5074\u304c\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u3001<strong>\u300c\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u306f\u3001\u3069\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u3089\u308c\u308b\u304b\u300d\u3092DNS<\/strong>\uff08\u30c9\u30e1\u30a4\u30f3\u540d\u3068\u30b5\u30fc\u30d0\u30fc\u306e\u60c5\u5831\u3092\u7ba1\u7406\u3059\u308b\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u4f4f\u6240\u9332\u306e\u3088\u3046\u306a\u3082\u306e\uff09<strong>\u306b\u8a18\u8f09\u3057\u3066\u304a\u304f<\/strong>\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u767b\u9332\u60c5\u5831\u304cSPF\u30ec\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u306f\u3001DNS\u306b\u767b\u9332\u3059\u308bTXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u516c\u958b\u3055\u308c\u3001\u53d7\u4fe1\u5074\u304b\u3089\u3044\u3064\u3067\u3082\u53c2\u7167\u3067\u304d\u308b\u72b6\u614b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u53d7\u4fe1\u5074\uff1aSPF\u30ec\u30b3\u30fc\u30c9\u3092\u7167\u5408\u3057\u3066\u8a8d\u8a3c\u3059\u308b<\/h3>\n<p>\u53d7\u4fe1\u5074\u306e\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u308b\u3068\u6b21\u306e\u624b\u9806\u3067\u8a8d\u8a3c\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>1. \u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u60c5\u5831\uff08\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7From\uff09\u304b\u3089\u30c9\u30e1\u30a4\u30f3\u3092\u53d6\u5f97\u3059\u308b<\/li>\n<li>2. \u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306eDNS\u306b\u554f\u3044\u5408\u308f\u305b\u3001SPF\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3059\u308b<\/li>\n<li>3. \u5b9f\u969b\u306e\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304c\u3001SPF\u30ec\u30b3\u30fc\u30c9\u3067\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u304b\u7167\u5408\u3059\u308b<\/li>\n<li>4. \u4e00\u81f4\u3059\u308c\u3070\u8a8d\u8a3c\u6210\u529f\u3001\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u5931\u6557\u3068\u3057\u3066\u6271\u3046<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u3053\u3067\u7167\u5408\u3055\u308c\u308b\u306e\u306f\u3001\u30e1\u30fc\u30eb\u306e\u4e2d\u8eab\u3067\u3082\u5dee\u51fa\u4eba\u306e\u8868\u793a\u540d\u3067\u3082\u306a\u304f\u3001<strong>\u5b9f\u969b\u306b\u9001\u4fe1\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9<\/strong>\u3067\u3059\u3002<\/p>\n<p>SPF\u306e\u8a2d\u5b9a\u3092\u884c\u308f\u306a\u3044\u307e\u307e\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3001\u53d7\u4fe1\u62d2\u5426\u3055\u308c\u305f\u308a\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>SPF\u306f\u300c\u30e1\u30fc\u30eb\u8ee2\u9001\u306b\u5f31\u3044\u300d<\/h3>\n<p>SPF\u306f\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3092\u57fa\u6e96\u306b\u3059\u308b\u305f\u3081\u3001<strong>\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u308b\u3068\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3084\u3059\u3044<\/strong>\u3068\u3044\u3046\u5f31\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u8ee2\u9001\u306b\u3088\u3063\u3066\u9001\u4fe1\u5143IP\u304c\u8ee2\u9001\u30b5\u30fc\u30d0\u30fc\u306e\u3082\u306e\u306b\u5909\u308f\u308a\u3001\u5143\u306eSPF\u30ec\u30b3\u30fc\u30c9\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3067\u3059\u3002\u3053\u306e\u5f31\u70b9\u306f\u3001\u5225\u306e\u8a8d\u8a3c\u6280\u8853\u3067\u3042\u308bDKIM\u3092\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u88dc\u3048\u307e\u3059\u3002<\/p>\n<p><!-- ============================================================ --><\/p>\n<p><!-- ============================================================ --><\/p>\n<h2>SPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9<\/h2>\n<p>\u305d\u308c\u3067\u306f\u3001\u5b9f\u969b\u306bDNS\u306b\u8a18\u8f09\u3059\u308bSPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0\u4f8b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-left: 4px solid #c12620; border-radius: 4px; padding: 12px 16px; font-family: 'Courier New',monospace; font-size: 0.92em; overflow-x: auto;\">v=spf1 ip4:192.0.2.1 include:spf.example.com ~all<\/p>\n<p>\uff08\u610f\u5473\uff1aIP\u30a2\u30c9\u30ec\u30b9192.0.2.1\u3068\u3001spf.example.com\u304c\u6307\u5b9a\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u9001\u4fe1\u3092\u8a31\u53ef\u3059\u308b\u3002\u305d\u308c\u4ee5\u5916\u306f\u30bd\u30d5\u30c8\u30d5\u30a7\u30a4\u30eb\u3068\u3059\u308b\uff09<\/p>\n<p>\u4e0a\u8a18\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3092\u5206\u89e3\u3059\u308b\u3068\u30013\u3064\u306e\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30d0\u30fc\u30b8\u30e7\u30f3\u5ba3\u8a00\uff08v=spf1\uff09\uff1a\u300c\u3053\u308c\u306fSPF\u30ec\u30b3\u30fc\u30c9\u3067\u3059\u300d\u3068\u5ba3\u8a00\u3059\u308b\u3002<\/li>\n<li>\u8a31\u53ef\u3059\u308b\u9001\u4fe1\u5143\u306e\u6307\u5b9a\uff08ip4 \/ include \u306a\u3069\uff09\uff1a\u3069\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u9001\u4fe1\u3092\u8a31\u53ef\u3059\u308b\u304b\u3092\u6307\u5b9a\u3059\u308b<\/li>\n<li>\u305d\u308c\u4ee5\u5916\u306e\u6271\u3044\u306e\u6307\u5b9a\uff08~all \/ -all\uff09\uff1a\u8a31\u53ef\u30ea\u30b9\u30c8\u306b\u306a\u3044\u9001\u4fe1\u5143\u304b\u3089\u6765\u305f\u30e1\u30fc\u30eb\u3092\u3069\u3046\u6271\u3046\u304b\u3092\u6c7a\u3081\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u63d0\u4f9b\u4f1a\u793e\u304b\u3089\u9001\u4fe1\u5143\u306e\u6b63\u3057\u3044\u8a18\u8ff0\u65b9\u6cd5\u3092\u6307\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u3067\u3001\u305d\u308c\u306b\u5f93\u3063\u3066\u30ec\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u5f0a\u793e\u304c\u63d0\u4f9b\u3059\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-left: 4px solid #c12620; border-radius: 4px; padding: 12px 16px; font-family: 'Courier New',monospace; font-size: 0.92em; overflow-x: auto;\">v=spf1 include:spf.bmv.jp ~all<\/p>\n<h3>\u300c~all\uff08\u30bd\u30d5\u30c8\u30d5\u30a7\u30a4\u30eb\uff09\u300d\u3068\u300c-all\uff08\u30cf\u30fc\u30c9\u30d5\u30a7\u30a4\u30eb\uff09\u300d\u306e\u9055\u3044<\/h3>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u306e\u672b\u5c3e\u306b\u306f\u3001\u8a31\u53ef\u30ea\u30b9\u30c8\u306b\u5408\u81f4\u3057\u306a\u304b\u3063\u305f\u30e1\u30fc\u30eb\u306e\u6271\u3044\u3092\u6307\u5b9a\u3059\u308b\u8a18\u8ff0\u3092\u7f6e\u304d\u307e\u3059\u3002\u3088\u304f\u4f7f\u308f\u308c\u308b\u306e\u304c <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">~all<\/span> \u3068 <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">-all<\/span> \u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>~all\uff08\u30bd\u30d5\u30c8\u30d5\u30a7\u30a4\u30eb\uff09\uff1a\u9069\u5408\u3057\u306a\u3044\u30e1\u30fc\u30eb\u3092\u300c\u4e00\u5fdc\u53d7\u3051\u53d6\u308b\u304c\u7591\u308f\u3057\u3044\u3082\u306e\u300d\u3068\u3057\u3066\u6271\u3046\u3002\u591a\u304f\u306e\u4f01\u696d\u304c\u307e\u305a\u3053\u306e\u8a2d\u5b9a\u3092\u4f7f\u3046<\/li>\n<li>-all\uff08\u30cf\u30fc\u30c9\u30d5\u30a7\u30a4\u30eb\uff09\uff1a\u9069\u5408\u3057\u306a\u3044\u30e1\u30fc\u30eb\u3092\u300c\u306a\u308a\u3059\u307e\u3057\u3068\u3057\u3066\u62d2\u5426\u3059\u308b\u300d\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u9ad8\u3044\u304c\u3001\u8a18\u8ff0\u6f0f\u308c\u304c\u3042\u308b\u3068\u6b63\u898f\u30e1\u30fc\u30eb\u3082\u62d2\u5426\u3055\u308c\u308b\u305f\u3081\u614e\u91cd\u306a\u78ba\u8a8d\u304c\u5fc5\u8981<\/li>\n<\/ul>\n<\/div>\n<p>\u306f\u3058\u3081\u3066SPF\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u3084\u3001\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u8907\u6570\u4f75\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u307e\u305a <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">~all<\/span> \u3067\u904b\u7528\u3092\u59cb\u3081\u3001\u3059\u3079\u3066\u306e\u9001\u4fe1\u5143\u3092\u628a\u63e1\u3067\u304d\u3066\u304b\u3089 <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">-all<\/span> \u3078\u306e\u5f15\u304d\u4e0a\u3052\u3092\u691c\u8a0e\u3059\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<p><!-- ============================================================ --><\/p>\n<h2>SPF\u30ec\u30b3\u30fc\u30c9\u3092DNS\u3078\u767b\u9332\u3059\u308b<\/h2>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u3092\u5b9f\u969b\u306b\u767b\u9332\u3059\u308b\u4f5c\u696d\u306f\u3001<strong>\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3057\u3066\u3044\u308bDNS\u30b5\u30fc\u30d0\u30fc\u306e\u7ba1\u7406\u753b\u9762<\/strong>\u3067\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\uff08\u304a\u540d\u524d.com\u3001\u30e0\u30fc\u30e0\u30fc\u30c9\u30e1\u30a4\u30f3\u3001Xserver\u3001AWS\u306a\u3069\uff09\u306e\u7ba1\u7406\u753b\u9762\u3067TXT\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<strong>\u793e\u5185\u306e\u62c5\u5f53\u8005\u306b\u3001\u4e0a\u8a18\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3092\u8a18\u8f09\u3059\u308b\u3088\u3046\u306b\u4f9d\u983c\u3057\u307e\u3057\u3087\u3046\u3002<\/strong><\/p>\n<p>\u306a\u304a\u3001\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u5834\u5408\u306f\u3001\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u5074\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u3089\u304b\u3058\u3081SPF\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u53b3\u5bc6\u306b\u306f\u81ea\u793e\u3067\u8a2d\u5b9a\u3057\u306a\u304f\u3066\u3082\u3001SPF\u8a8d\u8a3c\u305d\u306e\u3082\u306e\u306f\u30d1\u30b9\u3057\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u6ce8\u610f\u3057\u305f\u3044\u306e\u304c\u3001docomo\u3084au\u306a\u3069\u306e\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u30e1\u30fc\u30eb\u3092\u9001\u308b\u5834\u5408\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u5074\u306e\u30c9\u30e1\u30a4\u30f3\u3060\u3051\u3067\u306a\u304f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\uff08\u53d7\u4fe1\u8005\u306e\u753b\u9762\u306b\u8868\u793a\u3055\u308c\u308b\u9001\u4fe1\u5143\uff09\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3082\u8a8d\u8a3c\u3057\u307e\u3059\u3002\u3053\u3053\u304c\u672a\u8a2d\u5b9a\u3060\u3068\u8ff7\u60d1\u30e1\u30fc\u30eb\u6271\u3044\u3092\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001<strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u5834\u5408\u3067\u3082\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306eDNS\u306b\u306fSPF\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/strong><\/p>\n<h3>\u3010\u6ce8\u610f\u3011SPF\u30ec\u30b3\u30fc\u30c9\u306f1\u30c9\u30e1\u30a4\u30f3\u306b1\u3064\u3060\u3051<\/h3>\n<p>\u6ce8\u610f\u3057\u305f\u3044\u306e\u304c\u3001\u3059\u3067\u306b\u5225\u306e\u30b7\u30b9\u30c6\u30e0\u306eSPF\u30ec\u30b3\u30fc\u30c9\u304c\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3067\u3059\u3002Google Workspace\u3084Microsoft 365\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u3059\u3067\u306b <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">v=spf1&#8230;<\/span> \u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u3001\u65b0\u3057\u3044SPF\u30ec\u30b3\u30fc\u30c9\u30922\u884c\u76ee\u3068\u3057\u3066\u8ffd\u52a0\u3059\u308b\u306e\u306fNG\u3067\u3059\u3002<strong>SPF\u30ec\u30b3\u30fc\u30c9\u306f1\u3064\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u3064\u304d1\u3064\u306e\u307f<\/strong>\u3068\u3044\u3046\u30eb\u30fc\u30eb\u304c\u3042\u308a\u3001\u8907\u6570\u884c\u306b\u5206\u3051\u308b\u3068\u4e21\u65b9\u304c\u7121\u52b9\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u8aa4\u3063\u305f\u4f8b\uff082\u884c\u306b\u5206\u3051\u3066\u3057\u307e\u3046\uff09<\/p>\n<p style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-left: 4px solid #c12620; border-radius: 4px; padding: 12px 16px; font-family: 'Courier New',monospace; font-size: 0.92em; overflow-x: auto;\">v=spf1 include:_spf.google.com ~all<br \/>\nv=spf1 include:spf.bmv.jp ~all<\/p>\n<p>\u6b63\u3057\u3044\u4f8b\uff081\u884c\u306b\u307e\u3068\u3081\u308b\uff09<\/p>\n<p style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-left: 4px solid #c12620; border-radius: 4px; padding: 12px 16px; font-family: 'Courier New',monospace; font-size: 0.92em; overflow-x: auto;\">v=spf1 include:_spf.google.com include:spf.bmv.jp ~all<\/p>\n<p>\u3059\u3067\u306b\u8a2d\u5b9a\u304c\u3042\u308b\u5834\u5408\u306f\u3001<span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">include:\u3007\u3007<\/span> \u306e\u90e8\u5206\u3092\u30b9\u30da\u30fc\u30b9\u3067\u533a\u5207\u3063\u3066\u8ffd\u8a18\u3057\u3001\u524d\u5f8c\u3092 <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">v=spf1<\/span> \u3068 <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">~all<\/span> \u3067\u631f\u3080\u5f62\u30671\u884c\u306b\u7d71\u5408\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><!-- ============================================================ --><\/p>\n<h2>SPF\u30ec\u30b3\u30fc\u30c9\u304c\u6b63\u3057\u304f\u53cd\u6620\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b<\/h2>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u307e\u307e\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002SPF\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3059\u308b3\u3064\u306e\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30b3\u30de\u30f3\u30c9\uff08nslookup \/ dig\uff09\u3067\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u30d1\u30bd\u30b3\u30f3\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089\u3001\u30c9\u30e1\u30a4\u30f3\u306b\u8a2d\u5b9a\u3055\u308c\u305fTXT\u30ec\u30b3\u30fc\u30c9\u3092\u76f4\u63a5\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>Windows\u306e\u5834\u5408<\/h4>\n<p>\u300c\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u300d\uff08\u30b9\u30bf\u30fc\u30c8\u30e1\u30cb\u30e5\u30fc\u3067\u300ccmd\u300d\u3068\u691c\u7d22\uff09\u3092\u958b\u304d\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u3066Enter\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002<\/p>\n<p style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-left: 4px solid #c12620; border-radius: 4px; padding: 12px 16px; font-family: 'Courier New',monospace; font-size: 0.92em; overflow-x: auto;\">nslookup -type=txt \u78ba\u8a8d\u3057\u305f\u3044\u30c9\u30e1\u30a4\u30f3<\/p>\n<h4>Mac\u30fbLinux\u306e\u5834\u5408<\/h4>\n<p>\u300c\u30bf\u30fc\u30df\u30ca\u30eb\u300d\uff08Mac\u3067\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff1e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u5185\uff09\u3092\u958b\u304d\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u3066Enter\u30ad\u30fc\u3092\u62bc\u3057\u307e\u3059\u3002<\/p>\n<p style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-left: 4px solid #c12620; border-radius: 4px; padding: 12px 16px; font-family: 'Courier New',monospace; font-size: 0.92em; overflow-x: auto;\">dig \u78ba\u8a8d\u3057\u305f\u3044\u30c9\u30e1\u30a4\u30f3 txt +short<\/p>\n<p>\u5b9f\u884c\u7d50\u679c\u306b <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">v=spf1&#8230;<\/span> \u304b\u3089\u59cb\u307e\u308b\u6587\u5b57\u5217\u304c\u8868\u793a\u3055\u308c\u308c\u3070\u3001SPF\u30ec\u30b3\u30fc\u30c9\u304c\u53cd\u6620\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8868\u793a\u3055\u308c\u306a\u3044\u5834\u5408\u306f\u3001\u8a2d\u5b9a\u304c\u8aa4\u3063\u3066\u3044\u308b\u304b\u3001DNS\u3078\u306e\u53cd\u6620\u304c\u5b8c\u4e86\u3057\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>SPF\u30c1\u30a7\u30c3\u30af\u30c4\u30fc\u30eb\uff08Web\u30b5\u30fc\u30d3\u30b9\uff09\u3067\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u30b3\u30de\u30f3\u30c9\u64cd\u4f5c\u306b\u4e0d\u6163\u308c\u306a\u5834\u5408\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u8a3a\u65ad\u3067\u304d\u308bWeb\u306e\u78ba\u8a8d\u30c4\u30fc\u30eb\u304c\u4fbf\u5229\u3067\u3059\u3002\u300cSPF check\u300d\u300cSPF\u30ec\u30b3\u30fc\u30c9 \u78ba\u8a8d\u300d\u306a\u3069\u3067\u691c\u7d22\u3059\u308b\u3068\u3001\u7121\u6599\u3067\u4f7f\u3048\u308b\u30c4\u30fc\u30eb\u304c\u898b\u3064\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u3046\u3057\u305f\u30c4\u30fc\u30eb\u306e\u591a\u304f\u306f\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306e\u69cb\u6587\u30df\u30b9\u3084\u3001\u5f8c\u8ff0\u3059\u308b<strong>DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u6570\u306e\u8d85\u904e<\/strong>\u3068\u3044\u3063\u305f\u554f\u984c\u307e\u3067\u53ef\u8996\u5316\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u8a2d\u5b9a\u5f8c\u306b\u4e00\u5ea6\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n<h3>\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u3067\u8a8d\u8a3c\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u5b9f\u969b\u306b\u9001\u3063\u305f\u30e1\u30fc\u30eb\u304cSPF\u8a8d\u8a3c\u306b\u6210\u529f\u3057\u3066\u3044\u308b\u304b\u306f\u3001\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u60c5\u5831\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Gmail\u3084Outlook\u306a\u3069\u3067\u30e1\u30fc\u30eb\u306e\u300c\u539f\u6587\u3092\u8868\u793a\u300d\u300c\u30e1\u30c3\u30bb\u30fc\u30b8 \u30d8\u30c3\u30c0\u30fc\u300d\u3092\u958b\u304d\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/genbun.png\" alt=\"Gmail\u306e\u300c\u539f\u6587\u3092\u8868\u793a\u300d\" width=\"235\" height=\"463\" class=\"alignnone size-full wp-image-22372\" style=\"border: 1px solid #cccccc;\" \/><\/p>\n<p>\u3059\u308b\u3068\u3001\u305d\u306e\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u7d50\u679c\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/05\/spf_pass.png\" alt=\"SPF\u306e\u8a8d\u8a3c\u6210\u529f\u753b\u9762\" width=\"793\" height=\"249\" class=\"alignnone size-full wp-image-22383\" style=\"border: 1px solid #cccccc;\" \/><\/p>\n<p>SPF\uff1aPASS\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u308c\u3070\u3001SPF\u8a8d\u8a3c\u306f\u6210\u529f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><!-- ============================================================ --><\/p>\n<h2>SPF\u8a2d\u5b9a\u3067\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<p>\u300c\u8a2d\u5b9a\u3057\u305f\u306f\u305a\u306a\u306e\u306b\u8a8d\u8a3c\u306b\u5931\u6557\u3059\u308b\u300d\u3068\u3044\u3046\u30b1\u30fc\u30b9\u306f\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u3001\u3064\u307e\u305a\u304d\u3084\u3059\u3044\u4ee3\u8868\u7684\u306a\u30a8\u30e9\u30fc\u3068\u5bfe\u51e6\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d710\u56de\u5236\u9650\u306e\u8d85\u904e\uff08PermError\uff09<\/h3>\n<p>SPF\u306e\u4ed5\u69d8\uff08RFC 7208\uff09\u3067\u306f\u3001\u53d7\u4fe1\u5074\u304c\u8a8d\u8a3c\u6642\u306b\u884c\u3046DNS\u3078\u306e\u554f\u3044\u5408\u308f\u305b\uff08\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\uff09\u306e\u56de\u6570\u3092<strong>\u6700\u592710\u56de\u307e\u3067<\/strong>\u3068\u5b9a\u3081\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3092\u8d85\u3048\u308b\u3068\u3001SPF\u306f\u300cPermError\uff08\u6c38\u7d9a\u7684\u30a8\u30e9\u30fc\uff09\u300d\u3068\u306a\u308a\u3001\u8a8d\u8a3c\u305d\u306e\u3082\u306e\u304c\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n<p>\u6ce8\u610f\u3057\u305f\u3044\u306e\u306f\u3001<span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">include<\/span> \u3084 <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">a<\/span>\u3001<span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">mx<\/span> \u3068\u3044\u3063\u305f\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u305d\u308c\u305e\u308c\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u6d88\u8cbb\u3059\u308b\u70b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070 <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">include:_spf.google.com<\/span> \u306f\u5185\u90e8\u3067\u3055\u3089\u306b\u8907\u6570\u306e\u53c2\u7167\u3092\u884c\u3063\u3066\u304a\u308a\u3001\u305d\u308c\u3060\u3051\u30674\u56de\u7a0b\u5ea6\u3092\u6d88\u8cbb\u3057\u307e\u3059\u3002\u8907\u6570\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3084SaaS\u3092\u4f75\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u77e5\u3089\u306a\u3044\u3046\u3061\u306b10\u56de\u3092\u8d85\u3048\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002<\/p>\n<p>\u5bfe\u51e6\u6cd5\u3068\u3057\u3066\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u4f7f\u3063\u3066\u3044\u306a\u3044\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u306einclude\u3092\u524a\u9664\u3059\u308b\uff08\u6700\u3082\u624b\u8efd\u3067\u52b9\u679c\u7684\uff09<\/li>\n<li>DNS\u554f\u3044\u5408\u308f\u305b\u3092\u4f34\u308f\u306a\u3044ip4\u30fbip6\u3067\u306e\u76f4\u63a5\u6307\u5b9a\u306b\u7f6e\u304d\u63db\u3048\u308b<\/li>\n<li>SPF\u30c1\u30a7\u30c3\u30af\u30c4\u30fc\u30eb\u3067\u73fe\u5728\u306e\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u6570\u3092\u53ef\u8996\u5316\u3057\u3001\u8d85\u904e\u3057\u3066\u3044\u306a\u3044\u304b\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u306a\u304a\u3001<span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">ip4<\/span> \u3068 <span style=\"background: #f4f4f4; border: 1px solid #e0e0e0; border-radius: 3px; padding: 2px 6px; font-family: 'Courier New',monospace; font-size: 0.9em;\">ip6<\/span> \u306b\u3088\u308b\u76f4\u63a5\u6307\u5b9a\u306f\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u306a\u3044\u305f\u3081\u3001\u4f55\u500b\u4e26\u3079\u3066\u3082\u5236\u9650\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u53c2\u7167\uff1a<a href=\"https:\/\/www.rfc-editor.org\/info\/rfc7208\/\" target=\"_blank\" rel=\"noopener\">\u516c\u5f0f\uff08RFC Editor\uff09RFC 7208 Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1<\/a><\/p>\n<h3>SPF\u30ec\u30b3\u30fc\u30c9\u304c2\u3064\u4ee5\u4e0a\u5b58\u5728\u3057\u3066\u3044\u308b<\/h3>\n<p>\u524d\u8ff0\u306e\u901a\u308a\u30011\u3064\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u8907\u6570\u306eSPF\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3059\u308b\u3068\u3001SPF\u306fPermError\u3068\u306a\u308a\u7121\u52b9\u306b\u306a\u308a\u307e\u3059\u3002\u65b0\u3057\u3044\u30b5\u30fc\u30d3\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u969b\u306f\u3001\u5fc5\u305a\u65e2\u5b58\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u30011\u884c\u306b\u7d71\u5408\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u8a2d\u5b9a\u306e\u53cd\u6620\u306b\u6642\u9593\u304c\u304b\u304b\u308b\uff08DNS\u306e\u53cd\u6620\u5f85\u3061\uff09<\/h3>\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u30fb\u5909\u66f4\u3057\u3066\u3082\u3001\u3059\u3050\u306b\u306f\u53cd\u6620\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002DNS\u306e\u60c5\u5831\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u306b\u884c\u304d\u6e21\u308b\u307e\u3067\u306b\u306f\u3001\u6570\u5206\u304b\u3089\u9577\u3044\u5834\u5408\u3067\u6570\u5341\u6642\u9593\u304b\u304b\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u8a2d\u5b9a\u76f4\u5f8c\u306b\u78ba\u8a8d\u3057\u3066\u53cd\u6620\u3055\u308c\u3066\u3044\u306a\u304f\u3066\u3082\u3001\u3057\u3070\u3089\u304f\u6642\u9593\u3092\u304a\u3044\u3066\u304b\u3089\u518d\u5ea6\u30c1\u30a7\u30c3\u30af\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><!-- ============================================================ --><\/p>\n<h2>\u3042\u308f\u305b\u3066\u8a2d\u5b9a\u3057\u305f\u3044DKIM\u30fbDMARC<\/h2>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u3068\u3044\u30463\u3064\u306e\u6280\u8853\u304c\u30bb\u30c3\u30c8\u3067\u8a9e\u3089\u308c\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u5f79\u5272\u304c\u7570\u306a\u308a\u3001\u88dc\u5b8c\u3057\u5408\u3046\u3053\u3068\u3067\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306e\u7cbe\u5ea6\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>SPF\uff1a\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u7167\u5408\u3057\u3001\u6b63\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u3089\u308c\u305f\u304b\u3092\u691c\u8a3c\u3059\u308b<\/li>\n<li>DKIM\uff1a\u96fb\u5b50\u7f72\u540d\u3092\u4f7f\u3044\u3001\u30e1\u30fc\u30eb\u306e\u4e2d\u8eab\u304c\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u691c\u8a3c\u3059\u308b<\/li>\n<li>DMARC\uff1aSPF\u30fbDKIM\u306e\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u6271\u3044\uff08\u62d2\u5426\u30fb\u9694\u96e2\u306a\u3069\uff09\u3092\u53d7\u4fe1\u5074\u306b\u6307\u793a\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u3053\u304b\u3089\u306f\u3001\u6b8b\u308bDKIM\u3068DMARC\u306e\u5f79\u5272\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>DKIM\uff1a\u30e1\u30fc\u30eb\u306e\u5185\u5bb9\u304c\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u691c\u8a3c\u3059\u308b<\/h3>\n<p><strong>DKIM\uff08DomainKeys Identified Mail\uff09\u306f\u96fb\u5b50\u7f72\u540d\u3092\u4f7f\u3063\u3066\u3001\u30e1\u30fc\u30eb\u306e\u5185\u5bb9\u304c\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u304b<\/strong>\u3092\u691c\u8a3c\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>SPF\u306f\u3001\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u305fIP\u3092\u8a8d\u8a3c\u3067\u78ba\u8a8d\u3059\u308b\u305f\u3081\u3001\u8ee2\u9001\u3055\u308c\u308b\u3068\u5931\u6557\u3057\u3084\u3059\u3044\u3068\u3044\u3046\u5f31\u70b9\u304c\u3042\u308a\u307e\u3059\u304c\u3001DKIM\u306f\u30e1\u30fc\u30eb\u81ea\u4f53\u306b\u7f72\u540d\u3092\u4ed8\u4e0e\u3059\u308b\u305f\u3081\u3001\u8ee2\u9001\u3055\u308c\u3066\u3082\u8a8d\u8a3c\u304c\u7dad\u6301\u3055\u308c\u3084\u3059\u3044\u3068\u3044\u3046\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002\u4e21\u65b9\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u306e\u7cbe\u5ea6\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>DKIM\u306e\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u56f3\u89e3\u3068\u3068\u3082\u306b\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u3054\u89a7\u304f\u3060\u3055\u3044\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\/DKIM_banner.png\" alt=\"DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f\uff5c\u4ed5\u7d44\u307f\u304b\u3089\u8a2d\u5b9a\u65b9\u6cd5\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff01\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DKIM\uff08\u30c7\u30a3\u30fc\u30ad\u30e0\uff09\u3068\u306f\uff1f\uff5c\u4ed5\u7d44\u307f\u304b\u3089\u8a2d\u5b9a\u65b9\u6cd5\u307e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff01<\/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<h3>DMARC\uff1a\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306e\u6271\u3044\u3092\u6c7a\u3081\u308b<\/h3>\n<p><strong>DMARC\uff08Domain-based Message Authentication, Reporting and Conformance\uff09\u306f\u3001SPF\u3068DKIM\u306e\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u3069\u3046\u6271\u3046\u304b\u3092\u53d7\u4fe1\u5074\u306b\u6307\u793a\u3059\u308b<\/strong>\u305f\u3081\u306e\u30dd\u30ea\u30b7\u30fc\u5ba3\u8a00\u3067\u3059\u3002<\/p>\n<p>\u300c\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5165\u308c\u308b\uff08quarantine\uff09\u300d\u300c\u5b8c\u5168\u306b\u62d2\u5426\u3059\u308b\uff08reject\uff09\u300d\u3068\u3044\u3063\u305f\u6307\u793a\u3092\u51fa\u305b\u308b\u307b\u304b\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u304c\u306a\u308a\u3059\u307e\u3057\u306b\u60aa\u7528\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308b\u6a5f\u80fd\u3082\u6301\u3063\u3066\u3044\u307e\u3059\u3002SPF\u3068DKIM\u304c\u300c\u8a8d\u8a3c\u3059\u308b\u6280\u8853\u300d\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001DMARC\u306f\u305d\u308c\u3089\u3092\u7d71\u62ec\u3059\u308b\u300c\u904b\u7528\u3068\u9632\u5fa1\u306e\u30eb\u30fc\u30eb\u3092\u6c7a\u3081\u308b\u53f8\u4ee4\u5854\u300d\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<p>DMARC\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3084\u3001\u30d6\u30e9\u30f3\u30c9\u30ed\u30b4\u3092\u8868\u793a\u3059\u308b\u6700\u65b0\u898f\u683cBIMI\u307e\u3067\u3092\u77e5\u308a\u305f\u3044\u65b9\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/dmarc-mail\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/07\/DMARC.png\" 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=\"47\" \/><\/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<p><!-- ============================================================ --><\/p>\n<h2>\u306a\u305c\u4eca\u3001SPF\u8a2d\u5b9a\u304c\u5fc5\u9808\u306a\u306e\u304b\uff08Gmail\u30fbYahoo!\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff09<\/h2>\n<p>\u304b\u3064\u3066SPF\u306e\u8a2d\u5b9a\u306f\u300c\u63a8\u5968\u4e8b\u9805\u300d\u3067\u3057\u305f\u304c\u3001\u73fe\u5728\u306f\u30d3\u30b8\u30cd\u30b9\u3067\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3059\u3079\u3066\u306e\u4f01\u696d\u306b\u3068\u3063\u3066\u907f\u3051\u3089\u308c\u306a\u3044\u300c\u5fc5\u9808\u8981\u4ef6\u300d\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u80cc\u666f\u306b\u3042\u308b\u306e\u304c\u3001\u4e3b\u8981\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u306b\u3088\u308b\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5f37\u5316\u3067\u3059\u3002<\/p>\n<h3>2024\u5e742\u6708\u306eGmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5f37\u5316<\/h3>\n<p>2024\u5e742\u6708\u3088\u308a\u3001Google\u306f\u300c\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u300d\u3092\u5927\u5e45\u306b\u5f37\u5316\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5909\u66f4\u306b\u3088\u308a\u3001Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u3066\u306b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3001<strong>SPF\u307e\u305f\u306fDKIM\u306b\u3088\u308b\u8a8d\u8a3c\u8a2d\u5b9a<\/strong>\u304c\u6c42\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002Yahoo!\u30e1\u30fc\u30eb\u3082\u540c\u69d8\u306e\u65b9\u91dd\u3092\u6253\u3061\u51fa\u3057\u3066\u304a\u308a\u3001\u5bfe\u5fdc\u306f\u696d\u754c\u5168\u4f53\u306e\u6d41\u308c\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u95a2\u9023\u60c5\u5831\uff1a<a href=\"https:\/\/support.google.com\/mail\/answer\/81126\" target=\"_blank\" rel=\"noopener\">\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff08Google\u516c\u5f0f\uff09<\/a><\/p>\n<h3>5,000\u901a\/\u65e5\u4ee5\u4e0a\u306e\u5927\u91cf\u9001\u4fe1\u8005\u306fSPF\u30fbDKIM\u30fbDMARC\u3059\u3079\u3066\u304c\u5fc5\u9808<\/h3>\n<p>\u7279\u306b\u30011\u65e5\u306b5,000\u901a\u4ee5\u4e0a\u306e\u30e1\u30fc\u30eb\u3092\u9001\u308b\u300c\u5927\u91cf\u9001\u4fe1\u8005\u300d\u306b\u306f\u3001\u3088\u308a\u53b3\u3057\u3044\u8981\u4ef6\u304c\u8ab2\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001<strong>SPF\u30fbDKIM\u30fbDMARC\u306e3\u3064\u3059\u3079\u3066\u306e\u8a2d\u5b9a<\/strong>\u304c\u5fc5\u8981\u3067\u3059\u3002\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u3001\u6b63\u5f53\u306a\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u3067\u3042\u3063\u3066\u3082\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u308a\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u5168\u4f53\u50cf\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002\u78ba\u8a8d\u3057\u305f\u3044\u65b9\u306f\u3053\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/gmail-guideline-202402\">\n \u00a0 <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/Gmail_guide.png\" alt=\"\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u306f\u3001\u300cGmail\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u305f\u3044\u306a\u3089\u3001\u9001\u4fe1\u5074\u306f\u3053\u306e\u30eb\u30fc\u30eb\u3092\u5b88\u3063\u3066\u304f\u3060\u3055\u3044\u300d\u3068Google\u304c\u5b9a\u3081\u305f\u8981\u4ef6\u306e\u3053\u3068\u3067\u3059\u3002\u6b63\u5f0f\u540d\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<p><!-- ============================================================ --><\/p>\n<h2>SPF\u30fbDKIM\u306b\u5bfe\u5fdc\u3059\u308b\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h2>\n<p>\u3053\u3053\u307e\u3067\u898b\u3066\u304d\u305fSPF\u3084DKIM\u306e\u8a2d\u5b9a\u3092\u7c21\u5358\u306b\u78ba\u5b9f\u306b\u884c\u3046\u306b\u306f\u3001<strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0<\/strong>\u3092\u6d3b\u7528\u3059\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\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\u306a\u308a\u3059\u307e\u3057\u5bfe\u7b56\u3068\u5927\u91cf\u914d\u4fe1\u3092\u4e21\u7acb\u3055\u305b\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002SPF\u30fbDKIM\u5bfe\u5fdc\u306e\u89b3\u70b9\u3067\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>SPF\u30fbDKIM\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u6cbf\u3063\u305f\u914d\u4fe1\u304c\u3067\u304d\u308b<\/li>\n<li>\u5927\u91cf\u914d\u4fe1\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u914d\u4fe1\u57fa\u76e4\u3067\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3084\u4e0d\u9054\u306e\u30ea\u30b9\u30af\u3092\u6291\u3048\u3089\u308c\u308b<\/li>\n<li>\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u7387\u306a\u3069\u306e\u52b9\u679c\u6e2c\u5b9a\u3067\u3001\u914d\u4fe1\u5f8c\u306e\u6539\u5584\u306b\u3064\u306a\u3052\u3089\u308c\u308b<\/li>\n<\/ul>\n<\/div>\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\uff08\u203b\uff09\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\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\u652f\u6301\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u5bfe\u7b56\uff1aSPF\u30fbDKIM\u306b\u5bfe\u5fdc\u3057\u3001Gmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u6cbf\u3063\u305f\u914d\u4fe1\u304c\u3067\u304d\u308b<\/li>\n<li>\u52b9\u679c\u6e2c\u5b9a\uff1a\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u78ba\u8a8d\u3067\u304d\u3001\u6b21\u306e\u65bd\u7b56\u306b\u3059\u3050\u6d3b\u304b\u305b\u308b<\/li>\n<li>\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\uff1a\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>\u696d\u754c\u6700\u5b89\u30af\u30e9\u30b9\u306e\u6599\u91d1\uff1a\u6708\u984d4,000\u5186\u53f0\u304b\u3089\u5927\u898f\u6a21\u914d\u4fe1\u3082\u4f4e\u30b3\u30b9\u30c8\u3067\u5b9f\u73fe\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/div>\n<p>SPF\u30fbDKIM\u306e\u8a2d\u5b9a\u306b\u4e0d\u5b89\u304c\u3042\u308b\u65b9\u3067\u3082\u3001\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u306e\u914d\u4fe1\u57fa\u76e4\u3092\u305d\u306e\u307e\u307e\u5229\u7528\u3067\u304d\u308b\u306e\u304c\u5927\u304d\u306a\u5f37\u307f\u3067\u3059\u3002\u6700\u3082\u30ea\u30fc\u30ba\u30ca\u30d6\u30eb\u306a\u30d7\u30e9\u30f3\u306a\u3089\u6708\u984d4,000\u5186\u53f0\u304b\u3089\u59cb\u3081\u3089\u308c\u307e\u3059\uff08DKIM\u306fStandard\u30d7\u30e9\u30f3\u304b\u3089\u5229\u7528\u53ef\u80fd\uff09\u3002\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3082\u63d0\u4f9b\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u307e\u305a\u306f\u6c17\u8efd\u306b\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002<\/p>\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<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/order\/input\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_blank\" rel=\"noopener noreferrer\"><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>\u203b\u30df\u30c3\u30afIT\u30ea\u30dd\u30fc\u30c82025\u5e748\u6708\u53f7\u300c\u30af\u30e9\u30a6\u30c9\u578be\u30e1\u30fc\u30eb\u4e00\u6589\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u5e02\u5834\u52d5\u5411\u3068\u4e2d\u671f\u4e88\u6e2c\uff08\u58f2\u4e0a\u9ad8\/\u30a2\u30af\u30c6\u30a3\u30d6\u6cd5\u4eba\u9867\u5ba2\u6570\uff09\u300d\u3088\u308a<\/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>blastengine\uff08\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff09\u306f\u3001\u304a\u5ba2\u69d8\u306e\u30b7\u30b9\u30c6\u30e0\u3068SMTP\u30ea\u30ec\u30fc\u3084API\u3067\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\u81ea\u52d5\u9001\u4fe1\u30e1\u30fc\u30eb\u3084\u30b7\u30b9\u30c6\u30e0\u9023\u643a\u304c\u5fc5\u8981\u306a\u5834\u9762\u306b\u9069\u3057\u3066\u304a\u308a\u3001\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\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>SPF\/DKIM\/DMARC\u5bfe\u5fdc\uff1a\u6700\u65b0\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\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>99\uff05\u4ee5\u4e0a\u306e\u9ad8\u3044\u5230\u9054\u7387\uff1a\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>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc\uff1a\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\u3067\u304d\u308b<\/li>\n<li>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc\uff1a\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u904b\u7528\u8ca0\u8377\u3092\u5927\u5e45\u306b\u524a\u6e1b<\/li>\n<\/ul>\n<\/div>\n<p>Gmail\u3084\u30ad\u30e3\u30ea\u30a2\u30e1\u30fc\u30eb\u3078\u306e\u672a\u9054\u30fb\u9045\u5ef6\u3092\u89e3\u6d88\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u9762\u5012\u306a\u30b5\u30fc\u30d0\u30fc\u904b\u7528\u304b\u3089\u89e3\u653e\u3059\u308b\u9ad8\u901f\u304b\u3064\u78ba\u5b9f\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u521d\u671f\u8cbb\u7528\u7121\u6599\u30fb\u6708\u984d3,000\u5186\u304b\u3089\u5229\u7528\u3067\u304d\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5165\u529b\u3060\u3051\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/p>\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<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=\"_blank\" rel=\"noopener noreferrer\"><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><!-- ============================================================ --><\/p>\n<p><!-- ============================================================ --><\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>SPF\uff08Sender Policy Framework\uff09\u3068\u306f\u3001\u9001\u4fe1\u5143\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u7167\u5408\u3057\u3001\u30e1\u30fc\u30eb\u304c\u6b63\u898f\u306e\u9001\u4fe1\u5143\u304b\u3089\u9001\u3089\u308c\u305f\u3082\u306e\u304b\u3092\u691c\u8a3c\u3059\u308b\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u6280\u8853\u3067\u3059\u3002SPF\u30ec\u30b3\u30fc\u30c9\u3092DNS\u306b\u6b63\u3057\u304f\u516c\u958b\u3059\u308b\u3053\u3068\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u304e\u3001\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u8a2d\u5b9a\u3067\u7279\u306b\u62bc\u3055\u3048\u308b\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u306f\u3001<strong>SPF\u30ec\u30b3\u30fc\u30c9\u306f1\u30c9\u30e1\u30a4\u30f3\u306b1\u3064\u3060\u3051<\/strong>\u3067\u3042\u308b\u3053\u3068\u3001<strong>DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u306f10\u56de\u307e\u3067<\/strong>\u3068\u3044\u3046\u5236\u9650\u304c\u3042\u308b\u3053\u3068\u3001\u305d\u3057\u3066<strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u5229\u7528\u6642\u3082\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306bSPF\u3092\u8a2d\u5b9a\u3059\u308b<\/strong>\u3053\u3068\u306e3\u70b9\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001SPF\u5358\u72ec\u3067\u306f\u8ee2\u9001\u6642\u306e\u8a8d\u8a3c\u5931\u6557\u306a\u3069\u306e\u5f31\u70b9\u304c\u3042\u308b\u305f\u3081\u3001\u6539\u3056\u3093\u3092\u691c\u77e5\u3059\u308bDKIM\u3001\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u5bfe\u5fdc\u3092\u6c7a\u3081\u308bDMARC\u3068\u3042\u308f\u305b\u3066\u6574\u5099\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u78ba\u5b9f\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u4f53\u5236\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u30022024\u5e742\u6708\u4ee5\u964d\u306eGmail\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306b\u3082\u3001SPF\u3092\u8d77\u70b9\u3068\u3057\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u6574\u5099\u3092\u9032\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>SPF\u30fbDKIM\u306e\u8a2d\u5b9a\u306b\u5bfe\u5fdc\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308c\u3070\u3001\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u6cbf\u3063\u305f\u78ba\u5b9f\u306a\u914d\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u81ea\u793e\u306e\u914d\u4fe1\u74b0\u5883\u3092\u898b\u76f4\u3059\u304d\u3063\u304b\u3051\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div 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class=\"blog-faq__question\">Q\uff1aSPF\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304c\u300c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u300d\u3068\u5224\u65ad\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<strong>\u305d\u306e\u7d50\u679c\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u305f\u308a\u3001\u53d7\u4fe1\u62d2\u5426\u3055\u308c\u3066\u5c4a\u304b\u306a\u304f\u306a\u3063\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1aSPF\u30ec\u30b3\u30fc\u30c9\u306f\u3069\u3053\u3067\u8a2d\u5b9a\u3057\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u30e1\u30fc\u30eb\u914d\u4fe1\u30c4\u30fc\u30eb\u5074\u3067\u306f\u306a\u304f\u3001\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3057\u3066\u3044\u308bDNS\u30b5\u30fc\u30d0\u30fc\u3067\u8a2d\u5b9a\u3057\u307e\u3059\u3002<strong>TXT\u30ec\u30b3\u30fc\u30c9\u3068\u3057\u3066\u300cv=spf1 include:\uff08\u5229\u7528\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u60c5\u5831\uff09 ~all\u300d\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u3001\u8a31\u53ef\u3059\u308b\u9001\u4fe1\u5143\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3048\u3070\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306eSPF\u8a2d\u5b9a\u306f\u4e0d\u8981\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u3044\u3044\u3048\u3001\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u5f37\u304f\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<strong>\u30c9\u30b3\u30e2\u3084au\u306a\u3069\u306e\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u30e1\u30fc\u30eb\u306f\u3001\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\uff08\u30d8\u30c3\u30c0\u30fcFrom\uff09\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3082\u78ba\u8a8d\u3057\u3001\u7121\u3044\u5834\u5408\u306f\u30e1\u30fc\u30eb\u3092\u62d2\u5426\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002<\/strong>\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u304c\u6848\u5185\u3059\u308bSPF\u30ec\u30b3\u30fc\u30c9\u3092\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306b\u3082\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u8907\u6570\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u5834\u5408\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306f\u3069\u3046\u66f8\u304d\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a1\u3064\u306e\u30c9\u30e1\u30a4\u30f3\u306bSPF\u30ec\u30b3\u30fc\u30c9\u306f1\u3064\u3057\u304b\u8a2d\u5b9a\u3067\u304d\u307e\u305b\u3093\u3002<strong>\u5404\u30b5\u30fc\u30d3\u30b9\u306einclude\u3092\u30b9\u30da\u30fc\u30b9\u3067\u533a\u5207\u308a\u30011\u884c\u306b\u307e\u3068\u3081\u3066\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/strong>\u305f\u3060\u3057DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u304c10\u56de\u3092\u8d85\u3048\u308b\u3068PermError\u306b\u306a\u308b\u305f\u3081\u3001\u4e0d\u8981\u306ainclude\u306f\u524a\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/dd>\n<\/dl><\/div>\n","protected":false},"excerpt":{"rendered":"<p>SPF\u3068\u306f\u3001\u300c\u3053\u306e\u30e1\u30fc\u30eb\u306f\u6b63\u3057\u3044\u9001\u4fe1\u5143\u304b\u3089\u9001\u3089\u308c\u3066\u3044\u307e\u3059\u300d\u3068\u53d7\u4fe1\u5074\u306b\u8a3c\u660e\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u306e\u3053\u3068\u3067\u3059\u3002&#8230;<\/p>\n","protected":false},"author":8,"featured_media":22377,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3626","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\/3626","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=3626"}],"version-history":[{"count":29,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/3626\/revisions"}],"predecessor-version":[{"id":22376,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/3626\/revisions\/22376"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media\/22377"}],"wp:attachment":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media?parent=3626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/categories?post=3626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/tags?post=3626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}