{"id":156125,"date":"2026-04-15T11:17:24","date_gmt":"2026-04-15T02:17:24","guid":{"rendered":"https:\/\/support.questetra.com\/?p=156125"},"modified":"2026-06-01T10:56:30","modified_gmt":"2026-06-01T01:56:30","slug":"sender-domain-authentication","status":"publish","type":"post","link":"https:\/\/support.questetra.com\/ja\/developer-blog\/sender-domain-authentication\/","title":{"rendered":"Questetra \u3067\u306e\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56"},"content":{"rendered":"\n<p class=\"has-ast-global-color-6-background-color has-background wp-block-paragraph\">2024-01-04\uff1a\u516c\u958b<br>2024-06-26\uff1a\u4efb\u610f\u30c9\u30e1\u30a4\u30f3\u3078\u306e DKIM \u8a2d\u5b9a\u5bfe\u5fdc\u306b\u4f34\u3046\u6539\u5909\uff08\u30ea\u30f3\u30af\u8ffd\u52a0\u306a\u3069\uff09<br>2026-04-15\uff1aDMARC \u306b\u95a2\u3059\u308b\u8aac\u660e\u3092\u8ffd\u52a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd1\u5e74\u3001\u300c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u300d\u306b\u3088\u308b\u69d8\u3005\u306a\u88ab\u5bb3\u304c\u5831\u544a\u3055\u308c\u3066\u304a\u308a\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306f\u5bfe\u5fdc\u3092\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059<sup>\u203b<\/sup>\u3002\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u304c\u5b9f\u65bd\u3067\u304d\u308b\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u3078\u306e\u5bfe\u5fdc\u7b56\u3068\u3057\u3066\u6b21\u306e\u300c\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u300d\u6280\u8853\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SPF\uff08Sender Policy Framework\uff09\n<ul class=\"wp-block-list\">\n<li>\u9001\u4fe1\u5143\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u306eIP\u30a2\u30c9\u30ec\u30b9\u3067\u691c\u8a3c<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>DKIM\uff08DomainKeys Identified Mail\uff09\n<ul class=\"wp-block-list\">\n<li>\u9001\u4fe1\u30e1\u30fc\u30eb\u306b\u96fb\u5b50\u7f72\u540d\u3092\u4ed8\u4e0e\u3057\u3066\u691c\u8a3c<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>DMARC\uff08Domain-based Message Authentication, Reporting, and Conformance\uff09\n<ul class=\"wp-block-list\">\n<li>SPF \/ DKIM \u306e\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u5bfe\u5fdc\u7b56\u3092\u5b9a\u7fa9<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"is-style-info wp-block-paragraph\">\u203b \u4f8b\u3048\u3070\u3001Gmail \u3067\u306f\u6b21\u306e\u3088\u3046\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u304c\u5b9a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<br>Gmail &gt; <a href=\"https:\/\/support.google.com\/mail\/answer\/81126\" data-type=\"link\" data-id=\"https:\/\/support.google.com\/mail\/answer\/81126\" target=\"_blank\" rel=\"noreferrer noopener\">\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a><br><br>\u3053\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u4e2d\u3067\u3001\u300c\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u300d\u306f\u300cSPF \u307e\u305f\u306f DKIM \u3078\u306e\u5bfe\u5fdc\u300d\u304c\u6c42\u3081\u3089\u308c\u3066\u304a\u308a\u3001\u7279\u306b\u300c1\u65e5\u306b5,000\u901a\u4ee5\u4e0a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u300d\u306f\u30012024\u5e742\u67081\u65e5\u4ee5\u964d\u306f\u300cSPF \u304a\u3088\u3073 DKIM \u306e\u4e21\u65b9\u3078\u306e\u5bfe\u5fdc\u300d\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<br>\u306a\u304a\u3001Questetra \u304b\u3089\u306e\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u306f\u8a8d\u3081\u3089\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u901a\u5e38\u306e\u5229\u7528\u3067\u3042\u308c\u3070\u3001\u3053\u306e\u300c1\u65e5\u306b5,000\u901a\u4ee5\u4e0a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u300d\u306b\u306f\u8a72\u5f53\u3057\u306a\u3044\u898b\u8fbc\u307f\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Questetra \u3067\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Questetra \u3067\u306f\u3001\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u9014\u4e2d\u306e\u81ea\u52d5\u51e6\u7406\u5de5\u7a0b\u3092\u5229\u7528\u3057\u3066\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5229\u7528\u8005\u304c From \u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306f\u300cno-reply@s.questetra.net\u300d\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09\u3068\u306a\u308a\u307e\u3059\u3002<br>questetra.net \u30c9\u30e1\u30a4\u30f3<sup>\u203b\u203b<\/sup>\u3067\u306e DKIM \u7f72\u540d\u304c\u884c\u308f\u308c\u3001\u300c\u4f5c\u6210\u8005\u7f72\u540d\u300d\u306b\u3066\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001From \u30a2\u30c9\u30ec\u30b9\u3092\u5909\u66f4\u3055\u308c\u305f\u5834\u5408\u3082 questetra.net \u30c9\u30e1\u30a4\u30f3\u3067\u306e DKIM \u7f72\u540d\u306f\u884c\u308f\u308c\u307e\u3059\u304c\u3001\u300c\u7b2c\u4e09\u8005\u7f72\u540d\u300d\u3068\u3057\u3066\u53d6\u308a\u6271\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-info wp-block-paragraph\">\u203b\u203b \u5b9f\u969b\u306b\u306f\u3001\u300cs.questetra.net\u300d\u30c9\u30e1\u30a4\u30f3\u3067\u306e DKIM \u7f72\u540d\u3068\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30c8\u30e9\u30a4\u30a2\u30eb\uff08\u7121\u6599\u7248\uff09\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u57fa\u76e4\u3067\u306f\u3001\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306f\u300cno-reply@f.questetra.net\u300d\u3068\u306a\u308a\u3001f.questetra.net \u30c9\u30e1\u30a4\u30f3\u3067\u306e DKIM \u7f72\u540d\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5229\u7528\u8005\u304c From \u30a2\u30c9\u30ec\u30b9\u3092\u4efb\u610f\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u6307\u5b9a\u3057\u3066\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u884c\u3046\u5834\u5408\u306b\u306f\u3001SPF \u306e\u8a2d\u5b9a\u3092\u63a8\u5968\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/support.questetra.com\/ja\/developer-blog\/throwing-message-intermediate-event-email-dynamic-recipients\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u9014\u4e2d\u3067\u30e1\u30fc\u30eb\u3092\u81ea\u52d5\u9001\u4fe1\u3057\u3088\u3046\uff08\u5b9b\u5148\u8a2d\u5b9a\u7de8\uff09<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/questetra.zendesk.com\/hc\/ja\/articles\/360024331172\" target=\"_blank\" rel=\"noreferrer noopener\">R2241: SPF\u8a2d\u5b9a<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4efb\u610f\u30c9\u30e1\u30a4\u30f3\u3067\u306e DKIM \u7f72\u540d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5229\u7528\u8005\u304c\u6307\u5b9a\u3059\u308b\u4efb\u610f\u30c9\u30e1\u30a4\u30f3\u3067\u306e DKIM \u7f72\u540d\uff08\u4f5c\u6210\u8005\u7f72\u540d\uff09\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5177\u4f53\u7684\u306b\u306f\u3001Questetra \u5229\u7528\u8005\uff08\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\uff09\u304c\u9001\u4fe1\u8005\u30c9\u30e1\u30a4\u30f3\u306e\u79d8\u5bc6\u9375\u3092\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u57fa\u76e4\u306b\u767b\u9332\u3057\u307e\u3059\uff08Advanced Edition \u4ee5\u4e0a\uff09\u3002\u3053\u308c\u306b\u3088\u308a From \u30a2\u30c9\u30ec\u30b9\u304c\u6307\u5b9a\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u8a2d\u5b9a\u3055\u308c\u305f\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u308b\u969b\u306b\u3001\u767b\u9332\u3055\u308c\u305f\u79d8\u5bc6\u9375\u3092\u5229\u7528\u3057\u3066 DKIM \u7f72\u540d\uff08\u4f5c\u6210\u8005\u7f72\u540d\uff09\u304c\u884c\u308f\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001SPF \/ DKIM \u3092\u9069\u5207\u306b\u8a2d\u5b9a\u30fb\u904b\u7528\u3059\u308b\u3053\u3068\u3067\u3001DMARC \u3078\u306e\u5bfe\u5fdc\u3082\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DMARC \u306b\u3088\u308b\u30e1\u30fc\u30eb\u8a8d\u8a3c\u30dd\u30ea\u30b7\u30fc\u5236\u5fa1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">DMARC \u3068\u306f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DMARC\uff08Domain-based Message Authentication, Reporting and Conformance\uff09\u306f\u3001 SPF \u304a\u3088\u3073 DKIM \u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u3082\u3068\u306b\u3001 \u53d7\u4fe1\u5074\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u30e1\u30fc\u30eb\u306e\u53d6\u308a\u6271\u3044\uff08\u8a31\u53ef\u30fb\u9694\u96e2\u30fb\u62d2\u5426\uff09\u3092\u6307\u793a\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<br>SPF \u3084 DKIM \u3060\u3051\u3067\u306f\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u52d5\u4f5c\u3092\u5236\u5fa1\u3067\u304d\u307e\u305b\u3093\u304c\u3001 DMARC \u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u30dd\u30ea\u30b7\u30fc\u3092\u660e\u793a\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u306e\u9632\u6b62\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SPF \/ DKIM \u306e\u7d50\u679c\u3092\u7d71\u5408\u3057\u3066\u5224\u5b9a<\/li>\n\n\n\n<li>\u8a8d\u8a3c\u5931\u6557\u6642\u306e\u30dd\u30ea\u30b7\u30fc\u6307\u5b9a\uff08none \/ quarantine \/ reject\uff09<\/li>\n\n\n\n<li>\u30ec\u30dd\u30fc\u30c8\u306b\u3088\u308b\u9001\u4fe1\u72b6\u6cc1\u306e\u53ef\u8996\u5316<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">DMARC \u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DMARC \u306f\u3001DNS \u306b TXT \u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u8a2d\u5b9a\u3057\u307e\u3059\u3002 \u8a2d\u5b9a\u5bfe\u8c61\u306f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306e\u300c_dmarc\u300d\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u57fa\u672c\u7684\u306a\u8a2d\u5b9a\u4f8b<\/strong><\/p>\n\n\n<div style=\"--colorBackground: var( --wp--preset--color--border )\" class=\"is-style-default wp-block-code has-background has-border-background-color\">\n\t<div class=\"cm-editor\">\n\t\t<div class=\"cm-scroller\">\n\t\t\t\n<pre>\n<code><div class=\"cm-line\">v=DMARC1; p=none; rua=mailto:dmarc-report@example.com<\/div><\/code><\/pre>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\n<dl>\n  <dt>v<\/dt>\n  <dd>DMARC \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\uff08\u56fa\u5b9a\u3067 DMARC1\uff09<\/dd>\n\n  <dt>p<\/dt>\n  <dd>\n    \u30dd\u30ea\u30b7\u30fc\uff08none \/ quarantine \/ reject\uff09\n    <ol>\n      <li>none\uff1a\u76e3\u8996\u306e\u307f\uff08\u5f71\u97ff\u306a\u3057\uff09<\/li>\n      <li>quarantine\uff1a\u8ff7\u60d1\u30e1\u30fc\u30eb\u6271\u3044<\/li>\n      <li>reject\uff1a\u53d7\u4fe1\u62d2\u5426<\/li>\n    <\/ol>\n  <\/dd>\n\n  <dt>rua<\/dt>\n  <dd>\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\u306e\u9001\u4fe1\u5148\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9<\/dd>\n<\/dl>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u624b\u9806<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>SPF \u304a\u3088\u3073 DKIM \u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n<li>DNS \u306b\u300c_dmarc\u300d\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306e TXT \u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b<\/li>\n\n\n\n<li>\u307e\u305a\u306f p=none \u3067\u904b\u7528\u3092\u958b\u59cb\u3059\u308b\n<ul class=\"wp-block-list\">\n<li>\u3044\u304d\u306a\u308a reject 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