{"id":17031,"date":"2023-11-02T11:30:24","date_gmt":"2023-11-02T02:30:24","guid":{"rendered":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=17031"},"modified":"2026-04-01T14:25:58","modified_gmt":"2026-04-01T05:25:58","slug":"%e3%80%90%e8%a9%b3%e7%b4%b0%e7%89%88%e3%80%91gmail%e3%81%a8yahoo%e3%81%8c%e9%80%81%e4%bf%a1%e8%80%85%e3%81%ab%e7%be%a9%e5%8b%99%e3%81%a5%e3%81%91%e3%82%8b%e6%96%b0%e3%81%97%e3%81%84%e8%a6%81%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=17031","title":{"rendered":"\u3010\u8a73\u7d30\u7248\u3011Gmail\u3068Yahoo!\u304c\u9001\u4fe1\u8005\u306b\u7fa9\u52d9\u3065\u3051\u308b\u65b0\u3057\u3044\u8981\u4ef6"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/20231102_blog.png\" alt=\"\u3010\u8a73\u7d30\u7248\u3011Gmail\u3068Yahoo!\u304c\u9001\u4fe1\u8005\u306b\u7fa9\u52d9\u3065\u3051\u308b\u65b0\u3057\u3044\u8981\u4ef6\" width=\"100%\" class=\"aligncenter size-full wp-image-17038\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/20231102_blog.png 650w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/20231102_blog-300x185.png 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<aside class=\"status\">Gmail\u306e\u8981\u4ef6\u306f\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u65b0\u306e\u60c5\u5831\u306f<a href=\"https:\/\/support.google.com\/mail\/answer\/81126?hl=en\" rel=\"noopener\" target=\"_blank\">\u82f1\u8a9e\u7248\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a>\u3084<a href=\"https:\/\/support.google.com\/a\/answer\/14229414?hl=en\" rel=\"noopener\" target=\"_blank\">FAQ<\/a>\u3067\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/aside>\n<blockquote><p>\u3053\u306e\u8a18\u4e8b\u306f <a href=\"https:\/\/sendgrid.com\/blog\/gmail-yahoo-sender-requirements\/\" target=\"_blank\" rel=\"noopener\">Gmail and Yahoo\u2019s New Sender Requirements: A Closer Look<\/a> \u306e\u6284\u8a33\u3067\u3059\u3002<\/p><\/blockquote>\n<p>Gmail\u3084Yahoo!\u306e\u3088\u3046\u306a\u30a4\u30f3\u30dc\u30c3\u30af\u30b9\u30fb\u30d7\u30ed\u30d0\u30a4\u30c0\u306f\u3001\u30e6\u30fc\u30b6\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u65e5\u3005\u596e\u95d8\u3057\u3066\u3044\u307e\u3059\u3002Yahoo!\u306e\u30d7\u30ed\u30c0\u30af\u30c8\u30de\u30cd\u30b8\u30e1\u30f3\u30c8 \u30b7\u30cb\u30a2\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u3067\u3042\u308bMarcel Becker\u6c0f\u306f\u300cYahoo!\u306e\u4e3b\u8981\u306a\u30df\u30c3\u30b7\u30e7\u30f3\u306f\u3001\u30e6\u30fc\u30b6\u304c\u53d7\u3051\u53d6\u308a\u305f\u3044\u3067\u3042\u308d\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u5c4a\u3051\u3001\u671b\u307e\u308c\u306a\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u3067\u3059\u300d\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b8b\u5ff5\u306a\u304c\u3089\u30b9\u30d1\u30de\u30fc\u306a\u3069\u306e\u60aa\u8cea\u306a\u9001\u4fe1\u8005\u304c\u3044\u306a\u304f\u306a\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><a href=\"https:\/\/blog.google\/products\/gmail\/gmail-security-authentication-spam-protection\/\" target=\"_blank\" rel=\"noopener\">Gmail<\/a>\u306f\u3001\u53d7\u4fe1\u8005\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u65b0\u3057\u3044\u53d6\u308a\u7d44\u307f\u3068\u3057\u3066\u30012024\u5e742\u6708\u307e\u3067\u306b\u9001\u4fe1\u8005\u304c\u6e80\u305f\u3059\u3079\u304d\u65b0\u3057\u3044\u8981\u4ef6\u3092\u767a\u8868\u3057\u307e\u3057\u305f\u3002<a href=\"https:\/\/blog.postmaster.yahooinc.com\/post\/730172167494483968\/more-secure-less-spam\" target=\"_blank\" rel=\"noopener\">Yahoo!<\/a>\u3082\u540c\u69d8\u306b\u3001\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3066\u8981\u4ef6\u3092\u8a2d\u3051\u308b\u3053\u3068\u3092\u767a\u8868\u3057\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=17005\" target=\"_blank\" rel=\"noopener\">\u524d\u56de\u306e\u30d6\u30ed\u30b0<\/a>\u3067\u305d\u306e\u5185\u5bb9\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u4eca\u56de\u306f\u3055\u3089\u306b\u5404\u9805\u76ee\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u304c\u8981\u4ef6\u306b<\/h3>\n<p>\u4eca\u56de\u767a\u8868\u3055\u308c\u305f\u8981\u4ef6\u306f\u3001\u9577\u3044\u9593\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u304a\u3051\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u3057\u3066\u4f4d\u7f6e\u3065\u3051\u3089\u308c\u3066\u3044\u305f\u3082\u306e\u3067\u3042\u308a\u3001<a href=\"https:\/\/www.m3aawg.org\/sites\/default\/files\/doc_files\/M3AAWG_Senders_BCP_Ver3-2015-02.pdf\" target=\"_blank\" rel=\"noopener\">M3AAWG\u2019s Best Common Practices<\/a>\u306a\u3069\u3067\u6587\u66f8\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\nGmail\u3068Yahoo!\u306f\u3001\u3053\u308c\u3089\u3092\u5fc5\u9808\u8981\u4ef6\u3068\u3057\u3066\u63d0\u793a\u3057\u307e\u3057\u305f\u3002\u672c\u8a18\u4e8b\u306e\u57f7\u7b46\u6642\u70b9\u3067\u5177\u4f53\u7684\u306a\u60c5\u5831\u3092\u516c\u958b\u3057\u3066\u3044\u308b<a href=\"https:\/\/support.google.com\/mail\/answer\/81126\" target=\"_blank\" rel=\"noopener\">Google\u306e\u30a2\u30ca\u30a6\u30f3\u30b9<\/a>\u306b\u57fa\u3065\u304d\u3001\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>1. \u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u3067SPF\/DKIM\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/h4>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=10121\" target=\"_blank\" rel=\"noopener\">SPF\u3068DKIM<\/a>\u306f\u3001\u57fa\u672c\u7684\u306a\u30e1\u30fc\u30eb\u306e\u8a8d\u8a3c\u65b9\u5f0f\u3067\u3059\u3002SPF\u3067\u306f\u30c9\u30e1\u30a4\u30f3\u306e\u6240\u6709\u8005\u304c\u9001\u4fe1\u5143\u3068\u3057\u3066\u767b\u9332\u3057\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u3068\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304c\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001DKIM\u3067\u306f\u96fb\u5b50\u7f72\u540d\u3092\u4f7f\u3063\u3066\u6539\u3056\u3093\u306e\u6709\u7121\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p>Twilio SendGrid\u3067\u306f\u3001\u30e1\u30fc\u30eb\u696d\u754c\u3067\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306e\u4fdd\u8b77\u304c\u91cd\u8981\u8996\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u8e0f\u307e\u3048\u3001\u5229\u7528\u958b\u59cb\u6642\u306bSPF\u3068DKIM\u306e\u8a2d\u5b9a\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3082\u3057\u307e\u3060\u8a2d\u5b9a\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/Tutorials\/D_Improve_Deliverability\/using_whitelabel.html#-Domain-Whitelabel\" target=\"_blank\" rel=\"noopener\">Domain Authentication<\/a>\u304b\u3089\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>2. \u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u307e\u305f\u306f\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u6b63\u5f15\u304d\u30ec\u30b3\u30fc\u30c9\u3068\u9006\u5f15\u304d\u30ec\u30b3\u30fc\u30c9\uff08PTR\u30ec\u30b3\u30fc\u30c9\uff09\u304c\u6b63\u3057\u304f\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/h4>\n<p>DNS\u306e\u4ed5\u7d44\u307f\u3068\u3057\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u306eA\u30ec\u30b3\u30fc\u30c9\u3092\u53c2\u7167\u3059\u308b\u3068\u7d10\u4ed8\u304fIP\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u3067\u304d\uff08\u6b63\u5f15\u304d\uff09\u3001IP\u30a2\u30c9\u30ec\u30b9\u306ePTR\u30ec\u30b3\u30fc\u30c9\u3092\u53c2\u7167\u3059\u308b\u3068\u7d10\u4ed8\u304f\u30c9\u30e1\u30a4\u30f3\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\uff08\u9006\u5f15\u304d\uff09\u3002<br \/>\n\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u3092\u6b63\u5f15\u304d\u3057\u3066IP\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3057\u3001\u305d\u306eIP\u30a2\u30c9\u30ec\u30b9\u306e\u9006\u5f15\u304d\u7d50\u679c\u3068\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3059\u308b\u304b\u53cc\u65b9\u5411\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u3068\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304c\u304a\u4e92\u3044\u306b\u7d10\u3065\u3044\u3066\u3044\u308b\u3053\u3068\u3092\u8a3c\u660e\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u6b63\u5f53\u306a\u9001\u4fe1\u8005\u3067\u3042\u308b\u3068\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u306b\u8a8d\u8b58\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>SendGrid\u3092\u3054\u5229\u7528\u306e\u5834\u5408\u306f\u3001Reverse DNS\u3067\u9006\u5f15\u304d\u8a2d\u5b9a\u304c\u53ef\u80fd\u3067\u3059\u3002\u8a2d\u5b9a\u624b\u9806\u306f<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/Tutorials\/D_Improve_Deliverability\/using_whitelabel.html#-IP-Whitelabel\" rel=\"noopener\" target=\"_blank\">\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>3. Google Postmaster Tools\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u30920.3%\u4ee5\u4e0b\u3067\u7dad\u6301\u3057\u307e\u3057\u3087\u3046\u3002<\/h4>\n<p><a href=\"https:\/\/www.gmail.com\/postmaster\/\" target=\"_blank\" rel=\"noopener\">Google Postmaster Tools<\/a>\u306e\u8a2d\u5b9a\u306f\u304a\u6e08\u307f\u3067\u3059\u304b\uff1f\u307e\u3060\u306e\u65b9\u306f\u305c\u3072\u767b\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n\u3053\u308c\u3092\u4f7f\u3046\u3068\u3001\u914d\u4fe1\u30a8\u30e9\u30fc\u3084\u9001\u4fe1\u8005\u8a8d\u8a3c\u306e\u6210\u529f\u7387\u306a\u3069\u3001\u9001\u4fe1\u8005\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u4fa1\u5024\u306e\u3042\u308b\u60c5\u5831\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002Gmail\u30b5\u30fc\u30d0\u306b\u304a\u3051\u308b\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u3082\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\nYahoo!\u3084Microsoft\u306a\u3069\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u3082\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306f\u3001SendGrid\u306e<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=15512\" target=\"_blank\" rel=\"noopener\">Deliverability Insights<\/a>\u3092\u304a\u4f7f\u3044\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u304c0.3\uff05\u3092\u8d85\u3048\u3066\u3044\u308b\u5834\u5408\u306f\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=310\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u3092\u53c2\u8003\u306b\u5bfe\u7b56\u3092\u8b1b\u3058\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>4. Internet Message Format standard\uff08<a href=\"https:\/\/tools.ietf.org\/html\/rfc5322\" rel=\"noopener\" target=\"_blank\">RFC5322<\/a>\uff09\u306b\u6e96\u62e0\u3057\u305f\u5f62\u5f0f\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4f5c\u6210\u3057\u307e\u3057\u3087\u3046\u3002<\/h4>\n<p>RFC5322\u306f\u30e1\u30fc\u30eb\u306e\u6b63\u5f0f\u306a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u5b9a\u7fa9\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6a19\u6e96\u3067\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u30d8\u30c3\u30c0\u3084\u30dc\u30c7\u30a3\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u3064\u3044\u3066\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>SendGrid\u3067\u306f\u3001&#8221;From&#8221;\u30d8\u30c3\u30c0\u3092\u542b\u307e\u306a\u3044\u3068\u3044\u3063\u305fRFC5322\u306b\u6e96\u62e0\u3057\u3066\u3044\u306a\u3044\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u304c\u3001<a href=\"https:\/\/html.spec.whatwg.org\/multipage\/\" target=\"_blank\" rel=\"noopener\">HTML\u898f\u683c<\/a>\u306b\u5247\u3063\u305f\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u304b\u306a\u3069\u3068\u3082\u4f75\u305b\u3066\u3001\u3042\u3089\u305f\u3081\u3066\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>5. \u30d8\u30c3\u30c0From\u306bGmail\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u308b\u306e\u306f\u3084\u3081\u307e\u3057\u3087\u3046\u3002<\/h4>\n<p>Gmail\u306f\u3001DMARC\u30dd\u30ea\u30b7\u30fc\u306b\u300cquarantine\u300d\u3092\u8a2d\u5b9a\u3057\u305f\u904b\u7528\u3092\u958b\u59cb\u3057\u307e\u3059\u3002Gmail\u304b\u3089\u9001\u3063\u3066\u3044\u306a\u3044\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u30d8\u30c3\u30c0From\u306bGmail\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d8\u30c3\u30c0From\u306bGmail\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u3064\u307e\u308a\u300cexample@gmail.com\u300d\u304b\u3089\u9001\u4fe1\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>6. \u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u3084\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3067\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u308b\u5834\u5408\u306fARC\u30d8\u30c3\u30c0\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/h4>\n<p><a href=\"https:\/\/support.google.com\/a\/answer\/13198639\" target=\"_blank\" rel=\"noopener\">Google\u304c\u8aac\u660e<\/a>\u3057\u3066\u3044\u308b\u3068\u304a\u308a\u3001ARC\u306f\u8ee2\u9001\u524d\u306b\u884c\u308f\u308c\u305f\u8a8d\u8a3c\u306e\u7d50\u679c\u3092\u8ee2\u9001\u5f8c\u3082\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u8ee2\u9001\u306e\u904e\u7a0b\u3067SPF\u3084DKIM\u304c\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u3067\u3082\u3001\u6700\u7d42\u7684\u306a\u5b9b\u5148\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304f\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u3053\u3053\u3067\u306e\u8ee2\u9001\u3068\u306f\u3001\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u5b9b\u306b\u9001\u308b\u5834\u5408\u3084\u53d7\u4fe1\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u4ecb\u3059\u308b\u5834\u5408\u3092\u6307\u3057\u307e\u3059\u3002\u500b\u3005\u306e\u53d7\u4fe1\u8005\u304c\u53d7\u3051\u53d6\u3063\u305f\u30e1\u30fc\u30eb\u3092\u8ee2\u9001\u3059\u308b\u3053\u3068\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u306e\u3067\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>ARC\u306f\u30e1\u30fc\u30eb\u304c\u8ee2\u9001\u3055\u308c\u308b\u3068\u304d\u306b\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u3067\u51e6\u7406\u3055\u308c\u308b\u4ed5\u7d44\u307f\u3067\u3001\u3053\u306e\u8981\u4ef6\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u9001\u4fe1\u8005\u306f\u3054\u304f\u4e00\u90e8\u3067\u3059\u304c\u3001\u5b9a\u671f\u7684\u306b\u30e1\u30fc\u30eb\u3092\u8ee2\u9001\u3059\u308b\u5834\u5408\u306f<a href=\"https:\/\/support.google.com\/a\/answer\/13198639\" target=\"_blank\" rel=\"noopener\">\u5148\u307b\u3069\u793a\u3057\u305fGoogle\u306e\u30da\u30fc\u30b8<\/a>\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>7. \u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u3067DMARC\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/h4>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3137\" target=\"_blank\" rel=\"noopener\">DMARC<\/a>\u306f\u3001SPF\u3068DKIM\u3092\u5229\u7528\u3057\u305f\u6a19\u6e96\u898f\u683c\u3067\u3059\u3002\u3042\u306a\u305f\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u540d\u4e57\u3063\u3066\u9001\u3089\u308c\u305f\u30e1\u30fc\u30eb\u304cSPF\u304bDKIM\u3001\u3042\u308b\u3044\u306f\u4e21\u65b9\u306e\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306b\u3001\u305d\u306e\u30e1\u30fc\u30eb\u3092\u3069\u3046\u6271\u3046\u3079\u304d\u304b\u3092\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u306b\u6307\u793a\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>DMARC\u306e\u8a2d\u5b9a\u306f\u3001DNS\u306b\u30ec\u30b3\u30fc\u30c9\u3092\u767b\u9332\u3057\u3066\u884c\u3044\u307e\u3059\u3002\u8a2d\u5b9a\u72b6\u6cc1\u306f<a href=\"https:\/\/domain-checker.valimail.com\/dmarc\" target=\"_blank\" rel=\"noopener\">Valimail<\/a>\u304b\u3089\u7121\u6599\u3067\u78ba\u8a8d\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u8a2d\u5b9a\u306e\u6d41\u308c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u3054\u81ea\u8eab\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u7ba1\u7406\u3057\u3066\u3044\u308bDNS\u30ec\u30b8\u30b9\u30c8\u30e9\uff08\u304a\u540d\u524d.com \u306a\u3069\uff09\u3067\u30ec\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\n<ul>\n<li>\u30ec\u30b3\u30fc\u30c9\u306e\u7a2e\u985e\u306f\u300cTXT\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n<li>\u30db\u30b9\u30c8\u540d\u306b\u306f\u300c_DMARC\u300d\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u81ea\u52d5\u7684\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u8ffd\u52a0\u3055\u308c\u306a\u3044\u5834\u5408\u306f\u3001\u300c_dmarc.domain.com\u300d\u306e\u3088\u3046\u306b\u30db\u30b9\u30c8\u540d\u306e\u90e8\u5206\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u542b\u3081\u307e\u3059\u3002<\/li>\n<li>DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u306aDMARC\u30ec\u30b3\u30fc\u30c9\u306e\u4f8b\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nv=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email\n<\/pre>\n<p>\u300crua\u300d\u306b\u306fDMARC\u30ec\u30dd\u30fc\u30c8\u306e\u9001\u4fe1\u5148\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u4e0a\u8a18\u306e\u4f8b\u3067\u306f<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14490\" target=\"_blank\" rel=\"noopener\">DMARC\u30ec\u30dd\u30fc\u30c8\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308bValimail\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u4fdd\u5b58\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u304cDNS\u306b\u6b63\u3057\u304f\u8ffd\u52a0\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u306b\u306f\u3001none\u3001quarantine\u3001reject\u306e\u3044\u305a\u308c\u304b\u306e\u30dd\u30ea\u30b7\u30fc\u3092\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Gmail\u306e\u8981\u4ef6\u3067\u306f\u300cp=none\u300d\u306b\u8a2d\u5b9a\u3059\u308c\u3070\u826f\u3044\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u6700\u4f4e\u9650\u306e\u57fa\u6e96\u3067\u3059\u3002\u300cp=none\u300d\u3060\u3068\u3001SPF\u3084DKIM\u306e\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3082\u53d7\u4fe1\u5074\u30b5\u30fc\u30d0\u306f\u4f55\u3082\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u306a\u308a\u3059\u307e\u3057\u3092\u9632\u3050\u305f\u3081\u306b\u6709\u52b9\u306a\u306e\u306f\u3001\u30dd\u30ea\u30b7\u30fc\u3092\u300cp=reject\u300d\u307e\u305f\u306f\u300cp=quarantine\u300d\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\uff08DMARC\u30a8\u30f3\u30d5\u30a9\u30fc\u30b9\u30e1\u30f3\u30c8\uff09\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u3067\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306a\u3069\u3001\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u3046\u5168\u3066\u306e\u30e1\u30fc\u30eb\u3067\u8a8d\u8a3c\u3092\u6210\u529f\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8a2d\u5b9a\u3092\u8aa4\u308b\u3068\u4e00\u90e8\u306e\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u6280\u8853\u62c5\u5f53\u8005\u3068\u9023\u643a\u3057\u3066DMARC\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u3001\u9ad8\u3044\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>8. \u30d8\u30c3\u30c0From\u30c9\u30e1\u30a4\u30f3\u306f\u3001SPF\u307e\u305f\u306fDKIM\u306e\u8a8d\u8a3c\u5bfe\u8c61\u30c9\u30e1\u30a4\u30f3\u3068\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/h4>\n<p>\u5fc5\u305aSPF\u307e\u305f\u306fDKIM\u306e\u8a2d\u5b9a\u304c\u3055\u308c\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30e1\u30fc\u30eb\u9001\u4fe1\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u306f\u3001DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u30d1\u30b9\u3059\u308b\u305f\u3081\u306e\u8981\u4ef6\u3067\u3059\u3002DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\u3001SPF\u304a\u3088\u3073DKIM\u306e\u8a8d\u8a3c\u5bfe\u8c61\u30c9\u30e1\u30a4\u30f3\u3068\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u4e00\u81f4\u3059\u308b\u304b\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u3067\u3059\u3002<br \/>\nSendGrid\u306e\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u6a5f\u80fd\u3092\u4f7f\u3046\u5834\u5408\u306f\u3001<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/Tutorials\/B_Marketing_Mail\/marketing_campaigns1.html\" target=\"_blank\" rel=\"noopener\">Sender<\/a>\u3067\u8a2d\u5b9a\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u3068<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/Tutorials\/D_Improve_Deliverability\/using_whitelabel.html#-Domain-Whitelabel\" target=\"_blank\" rel=\"noopener\">Domain Authentication<\/a>\u3067\u8a2d\u5b9a\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u540c\u3058\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u691c\u8a3c\u306e\u53b3\u5bc6\u3055\u3092\u300cstrict\u300d\u3068\u300crelaxed\u300d\u306e2\u7a2e\u985e\u304b\u3089\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u5fd8\u308c\u305a\u306b\u8003\u616e\u3057\u307e\u3057\u3087\u3046\u3002\u8a73\u7d30\u306f<a href=\"https:\/\/support.google.com\/a\/answer\/10032169#alignment\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>9. \u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u306a\u3069\u306e\u5834\u5408\u306f\u672c\u6587\u306b\u308f\u304b\u308a\u3084\u3059\u3044\u914d\u4fe1\u505c\u6b62\u30ea\u30f3\u30af\u3092\u8a2d\u7f6e\u3057\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u914d\u4fe1\u505c\u6b62\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/h4>\n<p>\u624b\u7d9a\u304d\u3092\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u5b8c\u4e86\u3055\u305b\u308b\u3053\u3068\u306f\u3001\u53d7\u4fe1\u8005\u306b\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3055\u308c\u306a\u3044\u305f\u3081\u306e\u6709\u52b9\u306a\u65b9\u6cd5\u3067\u3059\u3002List-Unsubscribe\u30d8\u30c3\u30c0\u306b\u3088\u3063\u3066\u3001\u30e1\u30fc\u30eb\u4e0a\u90e8\u306e\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306e\u96a3\u306b\u914d\u4fe1\u505c\u6b62\u30dc\u30bf\u30f3\u307e\u305f\u306f\u30ea\u30f3\u30af\u3092\u633f\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u8a73\u7d30\u306f<a href=\"https:\/\/support.google.com\/mail\/answer\/81126#subscriptions\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/img1.png\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-17032\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/img1.png\" alt=\"List-Unsubscribe\u30d8\u30c3\u30c0\u306b\u3088\u3063\u3066\u3001\u30e1\u30fc\u30eb\u4e0a\u90e8\u306e\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306e\u96a3\u306b\u914d\u4fe1\u505c\u6b62\u30dc\u30bf\u30f3\u307e\u305f\u306f\u30ea\u30f3\u30af\u3092\u633f\u5165\" width=\"100%\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/img1.png 1600w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/img1-300x97.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/img1-768x247.png 768w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2023\/11\/img1-1024x330.png 1024w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/p>\n<p>SendGrid\u306e<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/User_Manual_JP\/Settings\/tracking.html#-Subscription-Tracking\" target=\"_blank\" rel=\"noopener\">\u914d\u4fe1\u505c\u6b62\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0<\/a>\u3092\u6709\u52b9\u306b\u3059\u308b\u3068\u3001\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb\u306bList-Unsubscribe\u30d8\u30c3\u30c0\u304c\u81ea\u52d5\u633f\u5165\u3055\u308c\u307e\u3059\u3002\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u6a5f\u80fd\u3092\u4f7f\u7528\u305b\u305a\u306bList-Unsubscribe\u30d8\u30c3\u30c0\u3092\u633f\u5165\u3059\u308b\u5834\u5408\u306f\u3001<a href=\"https:\/\/www.twilio.com\/docs\/sendgrid\/ui\/sending-email\/list-unsubscribe\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u624b\u9806<\/a>\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n<a href=\"https:\/\/sendgrid.com\/blog\/ftc-sets-record-straight-on-commercial-email\/\" target=\"_blank\" rel=\"noopener\">FTC\uff08\u9023\u90a6\u53d6\u5f15\u59d4\u54e1\u4f1a\uff09\u306f\u6700\u8fd1\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3068\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30e1\u30fc\u30eb\u306e\u5206\u985e\u3092\u660e\u78ba\u306b\u3057\u307e\u3057\u305f<\/a>\u3002\u9001\u308d\u3046\u3068\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u306b\u914d\u4fe1\u505c\u6b62\u30ea\u30f3\u30af\u3092\u5165\u308c\u308b\u3079\u304d\u304b\u3069\u3046\u304b\u306e\u53c2\u8003\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<h3>\u3055\u3044\u3054\u306b<\/h3>\n<p>\u307b\u3068\u3093\u3069\u306e\u8981\u4ef6\u306f\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u304c\u3001\u6700\u5f8c\u306e3\u9805\u76ee\uff087\u301c9\uff09\u306f1\u65e5\u306b5,000\u4ef6\u4ee5\u4e0a\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308b\u9001\u4fe1\u8005\u306b\u306e\u307f\u9069\u7528\u3055\u308c\u307e\u3059\u3002<br \/>\n2024\u5e742\u6708\u307e\u3067\u306b\u3059\u3079\u3066\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u3001SendGrid\u306e<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/\" target=\"_blank\" rel=\"noopener\">\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3084<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/\" target=\"_blank\" rel=\"noopener\">\u30d6\u30ed\u30b0<\/a>\u3092\u53c2\u8003\u306b\u3057\u3066\u8a2d\u5b9a\u3092\u6e08\u307e\u305b\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gmail\u306e\u8981\u4ef6\u306f\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u65b0\u306e\u60c5\u5831\u306f\u82f1\u8a9e\u7248\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3084FAQ\u3067\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002 \u3053\u306e\u8a18\u4e8b\u306f Gmail and Yahoo\u2019s New Sender Requirements: A Clo <a class=\"read-more\" href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=17031\">&#8230;\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":17038,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-17031","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-best-practices"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/17031","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17031"}],"version-history":[{"count":13,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/17031\/revisions"}],"predecessor-version":[{"id":20454,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/17031\/revisions\/20454"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/17038"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17031"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17031"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17031"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}