{"id":11480,"date":"2026-03-25T13:17:31","date_gmt":"2026-03-25T04:17:31","guid":{"rendered":"https:\/\/code-plus.jp\/gp\/?p=11480"},"modified":"2026-03-25T13:21:31","modified_gmt":"2026-03-25T04:21:31","slug":"email-sakuraonamae-11480","status":"publish","type":"post","link":"https:\/\/code-plus.jp\/gp\/email-sakuraonamae-11480\/","title":{"rendered":"\u3055\u304f\u3089\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\uff0b\u304a\u540d\u524d.com\u3067SPF\u30fbDKIM\u30fbDMARC\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<!-- title: \u3055\u304f\u3089\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\uff0b\u304a\u540d\u524d.com\u3067SPF\u30fbDKIM\u30fbDMARC\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\r\ndescription: \u30c9\u30e1\u30a4\u30f3\u3092\u304a\u540d\u524d.com\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u3055\u304f\u3089\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306eSPF\u30fbDKIM\u30fbDMARC\u8a2d\u5b9a\u624b\u9806\u3092\u89e3\u8aac\u3002\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3092\u304a\u540d\u524d.com\u5074\u3067\u7ba1\u7406\u3057\u3066\u3044\u308b\u69cb\u6210\u306b\u5bfe\u5fdc\u3057\u305f\u5b9f\u8df5\u7684\u306a\u8a2d\u5b9a\u30ac\u30a4\u30c9\u3067\u3059\u3002\r\ntags: \u3055\u304f\u3089\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc,\u304a\u540d\u524d.com,SPF,DKIM,DMARC,DNS\u8a2d\u5b9a,\u30e1\u30fc\u30eb\u8a8d\u8a3c,Gmail\u30a8\u30e9\u30fc,\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc,\u30e1\u30fc\u30eb\u5c4a\u304b\u306a\u3044 -->\r\n\r\n\r\n<p>2024\u5e74\u4ee5\u964d\u3001Gmail\u306fSPF\u30fbDKIM\u306b\u3088\u308b\u9001\u4fe1\u8005\u8a8d\u8a3c\u304c\u901a\u3089\u306a\u3044\u30e1\u30fc\u30eb\u3092<b class=\"bold\">\u591a\u304f\u306e\u30d6\u30ed\u30c3\u30af<\/b>\u3059\u308b\u4ed5\u69d8\u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002\u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u5834\u5408\u3001\u8a8d\u8a3c\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\r\n<pre><code class=\"language-\">550-5.7.26 Your email has been blocked because the sender is unauthenticated.\r\n550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM.\r\nDKIM = did not pass\r\nSPF &lsqb;example.co.jp&rsqb; with ip: &lsqb;133.167.x.x&rsqb; = did not pass\r\n<\/code><\/pre>\r\n\r\n<!-- \u2605\u76ee\u6b21\u30ea\u30b9\u30c8 -->\r\n<ul class=\"tocList mt-1r\" data-toc-id=\"js-tocBWGD\"><\/ul>\r\n<ins class=\"tocBtn is-fixed\" data-toc-id=\"js-tocBWGD\"><\/ins>\r\n<!-- \u76ee\u6b21\uff1aJS -->\r\n<script src=\"https:\/\/code-plus.jp\/cdn\/js\/_gimmicks\/inppend-tocList.js\"><\/script>\r\n<script src=\"https:\/\/code-plus.jp\/cdn\/js\/_gimmicks\/inppend-tocBtn.js\"><\/script>\r\n\r\n\r\n\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"fz-xl\">\u8a2d\u5b9a\u306e\u5168\u4f53\u50cf<\/h2>\r\n<p>\u3053\u306e\u69cb\u6210\u306e\u5834\u5408\u3001\u4f5c\u696d\u306f2\u7b87\u6240\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\r\n<table class=\"table my-0.5r\">\r\n  <thead>\r\n    <tr class=\"rung\">\r\n      <th>\u4f5c\u696d\u5834\u6240<\/th>\r\n      <td>\u8a2d\u5b9a\u5185\u5bb9<\/td>\r\n    <\/tr>\r\n  <\/thead>\r\n  <tbody>\r\n    <tr class=\"rung\">\r\n      <th><b class=\"bold\">\u3055\u304f\u3089\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb<\/b><\/th>\r\n      <td>DKIM\u30fbDMARC\u30fbSPF\u3092\u6709\u52b9\u5316<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th><b class=\"bold\">\u304a\u540d\u524d.com Navi\uff08DNS\u30ec\u30b3\u30fc\u30c9\u8a2d\u5b9a\uff09<\/b><\/th>\r\n      <td>SPF\u30fbDMARC\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0<\/td>\r\n    <\/tr>\r\n  <\/tbody>\r\n<\/table>\r\n<p>\u3055\u304f\u3089\u5074\u3067DKIM\u3092\u6709\u52b9\u5316\u3059\u308b\u3068\u3001DKIM\u30ec\u30b3\u30fc\u30c9\u304c\u81ea\u52d5\u3067DNS\u306b\u767b\u9332\u3055\u308c\u307e\u3059\u304c\u3001\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3092\u304a\u540d\u524d.com\u3067\u7ba1\u7406\u3057\u3066\u3044\u308b\u5834\u5408\u306f<b class=\"bold\">\u304a\u540d\u524d.com\u5074\u306b\u624b\u52d5\u3067\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/b>\u3002<\/p>\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"fz-xl\">Step 1\uff1a\u3055\u304f\u3089\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\u3067DKIM\u3092\u6709\u52b9\u5316<\/h2>\r\n<ol style=\"list-style-type:decimal;\" class=\"my-0.5r\">\r\n  <li>\u3055\u304f\u3089\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\u306b\u30ed\u30b0\u30a4\u30f3<ul style=\"list-style-type:bullet;\" class=\"my-0.5r\">\r\n      <li>URL\uff1a<code>https:\/\/secure.sakura.ad.jp\/rs\/cp\/<\/code><\/li>\r\n    <\/ul>\r\n  <\/li>\r\n  <li>\u5de6\u30e1\u30cb\u30e5\u30fc\u306e\u300c\u30e1\u30fc\u30eb\u300d\u2192\u300c\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u8a2d\u5b9a\u300d\u3092\u9078\u629e<\/li>\r\n  <li>\u5bfe\u8c61\u30c9\u30e1\u30a4\u30f3\u306e\u300c\u8a2d\u5b9a\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/li>\r\n  <li>\u300c\u30e1\u30fc\u30eb\u30c9\u30e1\u30a4\u30f3\u8a2d\u5b9a\u300d\u753b\u9762\u3067\u4ee5\u4e0b\u3092\u78ba\u8a8d\u30fb\u8a2d\u5b9a<\/li>\r\n<\/ol>\r\n<table class=\"table my-0.5r\">\r\n  <thead>\r\n    <tr class=\"rung\">\r\n      <th>\u9805\u76ee<\/th>\r\n      <td>\u8a2d\u5b9a\u5024<\/td>\r\n    <\/tr>\r\n  <\/thead>\r\n  <tbody>\r\n    <tr class=\"rung\">\r\n      <th>\u30e1\u30fc\u30eb\u306e\u5229\u7528\u7bc4\u56f2<\/th>\r\n      <td>\u300c\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u5b9b\u306e\u30e1\u30fc\u30eb\u306f\u5168\u3066\u30e6\u30fc\u30b6\u30fc\u306b\u53d7\u4fe1\u3055\u305b\u308b\u300d\u3092\u9078\u629e<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th>SPF\u30ec\u30b3\u30fc\u30c9<\/th>\r\n      <td>\u300c\u5229\u7528\u3059\u308b\u300d\u306b\u30c1\u30a7\u30c3\u30af<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th>DKIM\u30ec\u30b3\u30fc\u30c9<\/th>\r\n      <td>\u300c\u5229\u7528\u3059\u308b\u300d\u306b\u30c1\u30a7\u30c3\u30af<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th>DMARC\u30ec\u30b3\u30fc\u30c9<\/th>\r\n      <td>\u300c\u5229\u7528\u3059\u308b\u300d\u306b\u30c1\u30a7\u30c3\u30af<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th>DMARC\u30dd\u30ea\u30b7\u30fc<\/th>\r\n      <td>\u300c\u5831\u544a\u306e\u307f\u884c\u3046 (none)\u300d\u3092\u9078\u629e<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th>\u96c6\u8a08\u30ec\u30dd\u30fc\u30c8\u9001\u4fe1\u5148<\/th>\r\n      <td>\u7ba1\u7406\u7528\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\uff08\u4f8b\uff1a<code>admin@example.co.jp<\/code>\uff09<\/td>\r\n    <\/tr>\r\n  <\/tbody>\r\n<\/table>\r\n<ol start=\"5\" style=\"list-style-type:decimal;\" class=\"my-0.5r\">\r\n  <li>\u300c\u4fdd\u5b58\u3059\u308b\u300d\u3092\u30af\u30ea\u30c3\u30af<\/li>\r\n<\/ol>\r\n<blockquote>\r\n  <p>\u6ce8\u610f\uff1a\u3055\u304f\u3089\u5074\u3067\u300c\u5229\u7528\u3059\u308b\u300d\u306b\u3057\u3066\u3082\u3001\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u304c\u304a\u540d\u524d.com\u306e\u5834\u5408\u3001DNS\u3078\u306e\u81ea\u52d5\u53cd\u6620\u306f\u3055\u308c\u307e\u305b\u3093\u3002\u6b21\u306eStep 2\u3067\u624b\u52d5\u8ffd\u52a0\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\r\n<\/blockquote>\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"fz-xl\">Step 2\uff1a\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3059\u308b<\/h2>\r\n<p>SPF\u30ec\u30b3\u30fc\u30c9\u306b\u8a2d\u5b9a\u3059\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\r\n<ol style=\"list-style-type:decimal;\" class=\"my-0.5r\">\r\n  <li>\u3055\u304f\u3089\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb \u2192\u300c\u30b5\u30fc\u30d0\u30fc\u60c5\u5831\u300d\u3092\u9078\u629e<\/li>\r\n  <li>\u300cIP\u30a2\u30c9\u30ec\u30b9\u300d\u6b04\u306eIPv4\u30a2\u30c9\u30ec\u30b9\u3092\u30e1\u30e2\u3059\u308b<\/li>\r\n<\/ol>\r\n<p>\u307e\u305f\u306f\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u304b\u3089\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-bash\">nslookup \u521d\u671f\u30c9\u30e1\u30a4\u30f3.sakura.ne.jp\r\n<\/code><\/pre>\r\n<p>\u8868\u793a\u3055\u308c\u305fAddress\u306e\u5024\uff08\u4f8b\uff1a<code>133.167.8.31<\/code>\uff09\u304cSPF\u306b\u8a2d\u5b9a\u3059\u308bIP\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002<\/p>\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"fz-xl\">Step 3\uff1a\u304a\u540d\u524d.com NaVi\u3067DNS\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0<\/h2>\r\n<ol style=\"list-style-type:decimal;\" class=\"my-0.5r\">\r\n  <li>\u304a\u540d\u524d.com Navi\u306b\u30ed\u30b0\u30a4\u30f3\uff1a<cite><a href=\"https:\/\/navi.onamae.com\/\" target=\"_blank\" class=\"link\">https:\/\/navi.onamae.com\/<\/a><\/cite><\/li>\r\n  <li>\u300c\u30c9\u30e1\u30a4\u30f3\u300d\u2192\u300c\u30c9\u30e1\u30a4\u30f3\u6a5f\u80fd\u4e00\u89a7\u300d\u2192\u300cDNS\u8a2d\u5b9a\/\u8ee2\u9001\u8a2d\u5b9a\u300d\u3092\u9078\u629e<\/li>\r\n  <li>\u5bfe\u8c61\u30c9\u30e1\u30a4\u30f3\u306e\u300c\u30c9\u30e1\u30a4\u30f3DNS\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/li>\r\n  <li>\u300cDNS\u30ec\u30b3\u30fc\u30c9\u8a2d\u5b9a\u3092\u5229\u7528\u3059\u308b\u300d\u304b\u3089\u4ee5\u4e0b\u306e3\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0<\/li>\r\n<\/ol>\r\n<h3 class=\"fz-ml\">\u2460 SPF\u30ec\u30b3\u30fc\u30c9\uff08TXT\uff09<\/h3>\r\n<pre><code class=\"language-\">\u30db\u30b9\u30c8\u540d: \uff08\u7a7a\u6b04\uff09\r\nTYPE: TXT\r\nTTL: 3600\r\nVALUE: &quot;v=spf1 ip4:&lsqb;\u3055\u304f\u3089\u306eIP\u30a2\u30c9\u30ec\u30b9&rsqb; include:_spf.sakura.ne.jp ~all&quot;\r\n<\/code><\/pre>\r\n<p>\u8a2d\u5b9a\u4f8b\uff1a<\/p>\r\n<pre><code class=\"language-\">&quot;v=spf1 ip4:133.167.8.31 include:_spf.sakura.ne.jp ~all&quot;\r\n<\/code><\/pre>\r\n<h3 class=\"fz-ml\">\u2461 DMARC\u30ec\u30b3\u30fc\u30c9\uff08TXT\uff09<\/h3>\r\n<pre><code class=\"language-\">\u30db\u30b9\u30c8\u540d: _dmarc\r\nTYPE: TXT\r\nTTL: 3600\r\nVALUE: &quot;v=DMARC1; p=none; rua=mailto:admin@\u3042\u306a\u305f\u306e\u30c9\u30e1\u30a4\u30f3&quot;\r\n<\/code><\/pre>\r\n<p>\u8a2d\u5b9a\u4f8b\uff1a<\/p>\r\n<pre><code class=\"language-\">&quot;v=DMARC1; p=none; rua=mailto:admin@example.co.jp&quot;\r\n<\/code><\/pre>\r\n<h3 class=\"fz-ml\">\u2462 DKIM\u30ec\u30b3\u30fc\u30c9\u306b\u3064\u3044\u3066<\/h3>\r\n<p>\u3055\u304f\u3089\u3067DKIM\u3092\u6709\u52b9\u5316\u3057\u305f\u969b\u3001\u901a\u5e38\u306f\u3055\u304f\u3089\u7ba1\u7406\u306eDNS\u306bDKIM\u30ec\u30b3\u30fc\u30c9\u304c\u81ea\u52d5\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3092\u304a\u540d\u524d.com\u3067\u7ba1\u7406\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u3055\u304f\u3089\u306e\u30b5\u30dd\u30fc\u30c8\u306b\u554f\u3044\u5408\u308f\u305b\u3066DKIM\u30ec\u30b3\u30fc\u30c9\u306e\u5024\u3092\u78ba\u8a8d\u3057\u3001\u304a\u540d\u524d.com\u5074\u306b\u624b\u52d5\u3067\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"fz-xl\">Step 4\uff1a\u8a2d\u5b9a\u306e\u78ba\u8a8d<\/h2>\r\n<p>DNS\u306e\u5909\u66f4\u53cd\u6620\u306b\u306f\u6700\u592748\u6642\u9593\u304b\u304b\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">MXToolbox\uff08<cite><a href=\"https:\/\/mxtoolbox.com\/%EF%BC%89\" target=\"_blank\" class=\"link\">https:\/\/mxtoolbox.com\/\uff09<\/a><\/cite><\/h3>\r\n<ul style=\"list-style-type:bullet;\" class=\"my-0.5r\">\r\n  <li>SPF Lookup\u306a<code>example.co.jp<\/code> \u3092\u5165\u529b\u3057\u3066SPF\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d<\/li>\r\n  <li>DMARC Lookup\u306aDMARC\u30ec\u30b3\u30fc\u30c9\u306e\u78ba\u8a8d<\/li>\r\n<\/ul>\r\n<h3 class=\"fz-ml\">dnschecker.org\uff08<cite><a href=\"https:\/\/dnschecker.org\/%EF%BC%89\" target=\"_blank\" class=\"link\">https:\/\/dnschecker.org\/\uff09<\/a><\/cite><\/h3>\r\n<p>\u4e16\u754c\u4e2d\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u53cd\u6620\u72b6\u6cc1\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u5909\u66f4\u76f4\u5f8c\u306e\u4f1d\u64ad\u72b6\u6cc1\u78ba\u8a8d\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"fz-xl\">\u3088\u304f\u3042\u308b\u30df\u30b9<\/h2>\r\n<p><b class=\"bold\">\u2460 SPF\u306b <code>include:_spf.sakura.ne.jp<\/code> \u3092\u5fd8\u308c\u308b<\/b><\/p>\r\n<p>\u3055\u304f\u3089\u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u308b\u5834\u5408\u306f\u3055\u304f\u3089\u306eSMTP\u30b5\u30fc\u30d0\u30fc\u3082\u8a8d\u8a3c\u5bfe\u8c61\u306b\u542b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\r\n<p><b class=\"bold\">\u2461 \u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306e\u7ba1\u7406\u5834\u6240\u3092\u9593\u9055\u3048\u308b<\/b><\/p>\r\n<p>\u304a\u540d\u524d.com\u3067\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3092 <code>01.dnsv.jp<\/code>\uff08\u304a\u540d\u524d.com\uff09\u306b\u5411\u3051\u3066\u3044\u308b\u5834\u5408\u3001\u3055\u304f\u3089\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\u3067DNS\u3092\u7de8\u96c6\u3057\u3066\u3082\u53cd\u6620\u3055\u308c\u307e\u305b\u3093\u3002DNS\u30ec\u30b3\u30fc\u30c9\u306e\u7de8\u96c6\u306f<b class=\"bold\">\u304a\u540d\u524d.com Navi\u5074<\/b>\u3067\u884c\u3044\u307e\u3059\u3002<\/p>\r\n<p><b class=\"bold\">\u2462 DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u3044\u304d\u306a\u308a <code>reject<\/code> \u306b\u3059\u308b<\/b><\/p>\r\n<p>SPF\u30fbDKIM\u304c\u591a\u304f\u306e\u6a5f\u80fd\u3057\u3066\u3044\u306a\u3044\u6bb5\u968e\u3067 <code>reject<\/code> \u306b\u3059\u308b\u3068\u3001\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u307e\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306f <code>none<\/code> \u2192 <code>quarantine<\/code> \u2192 <code>reject<\/code> \u306e\u9806\u3067\u6bb5\u968e\u7684\u306b\u5f37\u5316\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"fz-xl\">\u307e\u3068\u3081<\/h2>\r\n<p>\u3055\u304f\u3089\uff0b\u304a\u540d\u524d.com\u69cb\u6210\u3067\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u8a2d\u5b9a\u306f\u3001<b class=\"bold\">\u3055\u304f\u3089\u5074\u306e\u6709\u52b9\u5316<\/b>\u3068<b class=\"bold\">\u304a\u540d\u524d.com\u5074\u306eDNS\u8ffd\u52a0<\/b>\u306e2\u6bb5\u968e\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\r\n<table class=\"table my-0.5r\">\r\n  <thead>\r\n    <tr class=\"rung\">\r\n      <th>\u8a2d\u5b9a<\/th>\r\n      <td>\u4f5c\u696d\u5834\u6240<\/td>\r\n      <td>\u64cd\u4f5c<\/td>\r\n    <\/tr>\r\n  <\/thead>\r\n  <tbody>\r\n    <tr class=\"rung\">\r\n      <th>DKIM\u6709\u52b9\u5316<\/th>\r\n      <td>\u3055\u304f\u3089\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb<\/td>\r\n      <td>\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u308b\u3060\u3051<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th>SPF\u30ec\u30b3\u30fc\u30c9\u8ffd\u52a0<\/th>\r\n      <td>\u304a\u540d\u524d.com Navi<\/td>\r\n      <td>TXT\u30ec\u30b3\u30fc\u30c9\u3092\u624b\u52d5\u8ffd\u52a0<\/td>\r\n    <\/tr>\r\n    <tr class=\"rung\">\r\n      <th>DMARC\u30ec\u30b3\u30fc\u30c9\u8ffd\u52a0<\/th>\r\n      <td>\u304a\u540d\u524d.com Navi<\/td>\r\n      <td>TXT\u30ec\u30b3\u30fc\u30c9\u3092\u624b\u52d5\u8ffd\u52a0<\/td>\r\n    <\/tr>\r\n  <\/tbody>\r\n<\/table>\r\n<p>\u8a2d\u5b9a\u5f8c\u306fMXToolbox\u3084dnschecker.org\u3067\u53cd\u6620\u3092\u78ba\u8a8d\u3057\u3001Gmail\u3078\u306e\u30c6\u30b9\u30c8\u9001\u4fe1\u3067\u554f\u984c\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u304b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\r\n\r\n<hr class=\"separator mt-3r\">\r\n\r\n<h2 class=\"hdg-chapter fz-xl ta-center mb-0.5pc\"><span>\u95a2\u9023\u8a18\u4e8b<\/span><\/h2>\r\n\r\n<a href=\"https:\/\/code-plus.jp\/gp\/email-colorfulbox-5632\/\" class=\"linkbox my-1.5r\">\r\n<h4 class=\"linkbox-title fz-md\">\u30ab\u30e9\u30d5\u30eb\u30dc\u30c3\u30af\u30b9\u3067SPF\u30fbDKIM\u30fbDMARC\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u3010Gmail\u5bfe\u5fdc\u3011<\/h4>\r\n<picture class=\"linkbox-thumbnail\">\r\n<img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/code-plus.jp\/gp\/wp-content\/uploads\/cd436d73d82dc2ed8ed0a7b324987232.jpg?ver=20260325132131\" alt=\"\u30ab\u30e9\u30d5\u30eb\u30dc\u30c3\u30af\u30b9\u3067SPF\u30fbDKIM\u30fbDMARC\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u3010Gmail\u5bfe\u5fdc\u3011\" loading=\"lazy\" \/>\r\n<\/picture>\r\n<span class=\"linkbox-excerpt\">\u30ab\u30e9\u30d5\u30eb\u30dc\u30c3\u30af\u30b9\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067SPF\u30fbDKIM\u30fbDMARC\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3092\u8a2d\u5b9a\u3059\u308b\u624b\u9806\u3092\u89e3\u8aac\u30022024\u5e74\u4ee5\u964dGmail\u3078\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u8a8d\u8a3c\u304c\u5fc5\u9808\u3068\u306a\u3063\u305f\u305f\u3081\u3001\u8a2d\u5b9a\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\r\n&emsp;<u class=\"linkbox-more\">\u7d9a\u304d\u3092\u8aad\u3080<\/u>\r\n<\/span>\r\n<\/a>","protected":false},"excerpt":{"rendered":"\u30c9\u30e1\u30a4\u30f3\u3092\u304a\u540d\u524d.com\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u3055\u304f\u3089\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306eSPF\u30fbDKIM\u30fbDMARC\u8a2d\u5b9a\u624b\u9806\u3092\u89e3\u8aac\u3002\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3092\u304a\u540d\u524d.com\u5074\u3067\u7ba1\u7406\u3057\u3066\u3044\u308b\u69cb\u6210\u306b\u5bfe\u5fdc\u3057\u305f\u5b9f\u8df5\u7684\u306a\u8a2d\u5b9a\u30ac\u30a4\u30c9\u3067\u3059\u3002","protected":false},"author":1,"featured_media":11481,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[802,801,800,798,797,796,493,331,333,332],"class_list":{"0":"post-11480","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-develop","8":"tag-802","9":"tag--com","10":"tag-800","11":"tag-gmail","12":"tag-797","13":"tag-dkim","14":"tag-493","15":"tag-spf","16":"tag-dns","17":"tag-dmarc"},"_links":{"self":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/11480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/comments?post=11480"}],"version-history":[{"count":5,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/11480\/revisions"}],"predecessor-version":[{"id":11486,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/11480\/revisions\/11486"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/media\/11481"}],"wp:attachment":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/media?parent=11480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/categories?post=11480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/tags?post=11480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}