{"id":3277,"date":"2025-09-05T16:50:25","date_gmt":"2025-09-05T08:50:25","guid":{"rendered":"https:\/\/blog.quantoyo.com\/?p=3277"},"modified":"2025-09-05T16:50:25","modified_gmt":"2025-09-05T08:50:25","slug":"mail-server-%e6%b2%92%e6%9c%89-ptr-dkim-spf%e7%9a%84%e8%a7%a3%e6%b3%95","status":"publish","type":"post","link":"https:\/\/blog.quantoyo.com\/?p=3277","title":{"rendered":"Mail Server \u6c92\u6709 PTR \/ DKIM \/ SPF\u7684\u89e3\u6cd5"},"content":{"rendered":"\n<p> \u524d\u63d0\uff1a\u67b6\u8a2d synology Mail Server \u5f8c\u767c\u73fe\u6211\u4e0d\u80fd\u5c07\u4fe1\u4ef6\u8f49\u50b3\u5230 gmail <\/p>\n\n\n\n<!--more-->\n\n\n\n<p>\u539f\u56e0\u662f\u56e0\u70ba<strong>\u6c92\u6709 PTR (IP \u53cd\u89e3 \/ Reverse DNS record)<\/strong>\uff0c\u5c0e\u81f4 Gmail\uff08\u9084\u6709\u5176\u4ed6\u5927\u578b\u90f5\u4ef6\u4f3a\u670d\u5668\uff0c\u50cf Yahoo\u3001Outlook\uff09\u76f4\u63a5\u628a\u4f60\u7684\u4fe1\u64cb\u6389<\/p>\n\n\n\n<p>\u800c\u5bc4\u4fe1\u7684\u4fe1\u7bb1\u6703\u6536\u5230\u62d2\u6536\u56de\u51fd\u5982\u4e0b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"718\" height=\"150\" src=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-1.png\" alt=\"\" class=\"wp-image-3278\" srcset=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-1.png 718w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-1-300x63.png 300w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-1-150x31.png 150w\" sizes=\"auto, (max-width: 718px) 100vw, 718px\" \/><\/figure>\n\n\n\n<pre class=\"wp-block-code has-cyan-bluish-gray-background-color has-background has-small-font-size\"><code>This is the mail system at host quantoyo.com.\n\nI'm sorry to have to inform you that your message could not\nbe delivered to one or more recipients. It's attached below.\n\nFor further assistance, please send mail to postmaster.\n\nIf you do so, please include this problem report. You can\ndelete your own text from the attached returned message.\n\n                   The mail system\n\n&lt;XXXXXXX@gmail.com>: host gmail-smtp-in.l.google.com&#91;74.125.204.26] said:\n    550-5.7.26 Your email has been blocked because the sender is\n    unauthenticated. 550-5.7.26 Gmail requires all senders to authenticate with\n    either SPF or DKIM. 550-5.7.26  550-5.7.26  Authentication results:\n    550-5.7.26  DKIM = did not pass 550-5.7.26  SPF &#91;quantoyo.com] with ip:\n    &#91;106.104.168.235] = did not pass 550-5.7.26  550-5.7.26  For instructions\n    on setting up authentication, go to 550 5.7.26\n    https:&#47;&#47;support.google.com\/mail\/answer\/81126#authentication\n    41be03b00d2f7-b47640a4e1esi3960484a12.545 - gsmtp (in reply to end of DATA\n    command)<\/code><\/pre>\n\n\n\n<p>\u6216\u9019\u6a23<\/p>\n\n\n\n<pre class=\"wp-block-code has-cyan-bluish-gray-background-color has-background has-small-font-size\"><code>This is the mail system at host quantoyo.com.\n\nI'm sorry to have to inform you that your message could not\nbe delivered to one or more recipients. It's attached below.\n\nFor further assistance, please send mail to postmaster.\n\nIf you do so, please include this problem report. You can\ndelete your own text from the attached returned message.\n\n                   The mail system\n\n&lt;XXXXXXX@gmail.com>: host gmail-smtp-in.l.google.com&#91;64.233.188.27] said:\n    550-5.7.25 &#91;106.104.168.235] The IP address sending this message does not\n    have a 550-5.7.25 PTR record setup, or the corresponding forward DNS entry\n    does not 550-5.7.25 match the sending IP. As a policy, Gmail does not\n    accept messages 550-5.7.25 from IPs with missing PTR records. For more\n    information, go to 550-5.7.25\n    https:\/\/support.google.com\/a?p=sender-guidelines-ip  550-5.7.25 To learn\n    more about Gmail requirements for bulk senders, visit 550 5.7.25\n    https:&#47;&#47;support.google.com\/a?p=sender-guidelines.\n    d2e1a72fcca58-76e7d25c609si6014285b3a.448 - gsmtp (in reply to end of DATA\n    command)<\/code><\/pre>\n\n\n\n<p>\u9019\u908a\u9047\u5230\u4e86\u5e7e\u500b\u554f\u984c<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> DKIM \/ SPF<br>\u9019\u662f\u9700\u8981\u5230 Nas \u4e0a\u7684 Synology Mail Server \/ \u5b89\u5168\u6027 \/ \u8a8d\u8b49\u52fe\u8d77 &#8220;\u555f\u7528SPF&#8221; \u8207 &#8220;\u555f\u7528DKIM&#8221;\uff0c\u4e26\u4e14\u5728DKIM \u4e0b\u65b9\u7522\u751f\u51fa\u5bc6\u9470\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1746\" height=\"782\" src=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-2.png\" alt=\"\" class=\"wp-image-3279\" srcset=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-2.png 1746w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-2-300x134.png 300w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-2-150x67.png 150w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-2-768x344.png 768w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-2-1536x688.png 1536w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure>\n\n\n\n<p>\u518d\u5230GoDaddy \u4e0a\u7684DNS \u52a0\u4e0a\u4e00\u500bTXT \u5c07\u5bc6\u9470\u5167\u5bb9\u5982\u4e0b\u683c\u5f0f\u8cbc\u4e0a\u5373\u53ef<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2334\" height=\"334\" src=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-3.png\" alt=\"\" class=\"wp-image-3280\" srcset=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-3.png 2334w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-3-300x43.png 300w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-3-150x21.png 150w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-3-768x110.png 768w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-3-1536x220.png 1536w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-3-2048x293.png 2048w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li> PTR \u554f\u984c\u624d\u662f\u6709\u9ede\u7121\u89e3\u7684\u554f\u984c<br>PTR \u5c31\u662f IP \u53cd\u89e3 \/ Reverse DNS record \u7684\u610f\u601d\uff0c\u6709\u7684\u4f3a\u670d\u5668\u4e0d\u53ea\u8981\u770b domain \u5c0d\u61c9\u7684IP \uff0c\u9084\u8981\u770b IP \u5c0d\u61c9\u7684 domain\u3002<br>\u4f46\u662f\u4e00\u822c\u5bb6\u7528\u7684\u5149\u7e96\uff0cISP \u696d\u8005\u4e26\u4e0d\u9858\u610f\u5354\u52a9\u4fee\u6539<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1124\" height=\"766\" src=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-4.png\" alt=\"\" class=\"wp-image-3281\" srcset=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-4.png 1124w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-4-300x204.png 300w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-4-150x102.png 150w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-4-768x523.png 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure>\n\n\n\n<p>\u5982\u679c\u662f\u4f01\u696d\u7528\u6236\u53ef\u4ee5\u76f4\u63a5\u5230\u9019\u88e1\u7533\u8acb<\/p>\n\n\n\n<p><a href=\"https:\/\/eservice.seed.net.tw\/ip_check.htm\">https:\/\/eservice.seed.net.tw\/ip_check.htm<\/a><\/p>\n\n\n\n<p>\u9019\u908a\u63d0\u4f9b\u53e6\u4e00\u500b\u6709\u526f\u4f5c\u7528\u7684\u505a\u6cd5\uff0c\u5c31\u662f\u4f7f\u7528 google \u63d0\u4f9b\u7684 SMTP \u4f3a\u670d\u5668\u4f86\u5bc4\u4fe1\uff0c\u4f46\u6709\u4e00\u5929500 \u5c01\u4fe1\u7684\u9650\u5236\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7533\u8acb\u4e00\u500bgmail \u5e33\u865f\uff0c\u4e26\u958b\u555f\u5169\u6b65\u9a5f\u8a8d\u8b49 (OTP)<\/li>\n\n\n\n<li>google \u76ee\u524d\u523b\u610f\u96b1\u85cf\u8d77\u4f86 app password \u53ef\u4ee5\u5230\u9019\u908a\u7533\u8acb<br>https:\/\/myaccount.google.com\/apppasswords<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-5.png\" alt=\"\" class=\"wp-image-3282\" width=\"439\" height=\"421\" srcset=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-5.png 1418w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-5-300x288.png 300w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-5-150x144.png 150w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-5-768x737.png 768w\" sizes=\"auto, (max-width: 439px) 100vw, 439px\" \/><\/figure>\n\n\n\n<p>3. \u5c07\u53d6\u5f97\u768416 \u500b\u5b57\u5bc6\u78bc\u8a18\u4f4f\u7b49\u7b49\u6703\u7528\u5230<\/p>\n\n\n\n<p>4. \u767b\u5165 Synology <strong>Mail Server \u7ba1\u7406\u4ecb\u9762<\/strong><\/p>\n\n\n\n<p>\u627e\u5230 <strong>SMTP <\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-6.png\" alt=\"\" class=\"wp-image-3283\" width=\"428\" height=\"344\" srcset=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-6.png 1192w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-6-300x242.png 300w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-6-150x121.png 150w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-6-768x619.png 768w\" sizes=\"auto, (max-width: 428px) 100vw, 428px\" \/><\/figure>\n\n\n\n<p>\u958b\u555f <strong>\u5916\u5bc4\u4fe1\u4ef6\u900f\u904e &#8220;SMTP relay<\/strong>&#8221; \u586b\u4e0a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-7.png\" alt=\"\" class=\"wp-image-3284\" width=\"423\" height=\"328\" srcset=\"https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-7.png 968w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-7-300x234.png 300w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-7-150x117.png 150w, https:\/\/blog.quantoyo.com\/wp-content\/uploads\/2025\/09\/image-7-768x598.png 768w\" sizes=\"auto, (max-width: 423px) 100vw, 423px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f3a\u670d\u5668\u4f4d\u5740<\/strong>\uff1a<code>smtp.gmail.com<\/code><\/li>\n\n\n\n<li><strong>Port<\/strong>\uff1a587<\/li>\n\n\n\n<li><strong>TLS\/SSL<\/strong>\uff1a\u52fe\u9078<\/li>\n\n\n\n<li>\u9700\u8981\u8eab\u4efd\u9a57\u8b49\uff1a\u4f7f\u7528 Gmail \u5e33\u865f + \u61c9\u7528\u7a0b\u5f0f\u5bc6\u78bc\uff08\u8981\u5148\u5728 Google \u5e33\u865f\u88e1\u7522\u751f App Password\uff09<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>\u5230\u6b64\uff0c\u53ef\u4ee5\u5bc4\u4fe1\u770b\u770b\u4e86&#8230;<\/p>\n\n\n\n<p>\u526f\u4f5c\u7528\uff1a\u5bc4\u4ef6\u8005\u6703\u8b8a\u6210\u525b\u525b\u4f7f\u7528\u7684 gmail \u5e33\u865f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u63d0\uff1a\u67b6\u8a2d synology Mail Server \u5f8c\u767c\u73fe\u6211\u4e0d\u80fd\u5c07\u4fe1\u4ef6\u8f49\u50b3\u5230 gmail<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3277","post","type-post","status-publish","format-standard","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=\/wp\/v2\/posts\/3277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3277"}],"version-history":[{"count":1,"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=\/wp\/v2\/posts\/3277\/revisions"}],"predecessor-version":[{"id":3285,"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=\/wp\/v2\/posts\/3277\/revisions\/3285"}],"wp:attachment":[{"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.quantoyo.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}