{"id":18744,"date":"2021-05-06T17:01:26","date_gmt":"2021-05-06T09:01:26","guid":{"rendered":"https:\/\/blog.pmail.idv.tw\/?p=18744"},"modified":"2021-05-06T17:01:26","modified_gmt":"2021-05-06T09:01:26","slug":"smg%e7%84%a1%e6%b3%95%e5%af%84%e4%bf%a1%e5%88%b0%e7%89%b9%e5%ae%9a%e7%b6%b2%e5%9f%9f%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/blog.pmail.idv.tw\/?p=18744","title":{"rendered":"SMG\u7121\u6cd5\u5bc4\u4fe1\u5230\u7279\u5b9a\u7db2\u57df\u554f\u984c"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>\u8fd1\u671f\u767c\u751f\u5bc4\u4fe1\u5230\u5ba2\u6236\u7aef\u5f8c\uff0c\u5ba2\u6236\u6709\u6642\u6703\u6536\u4e0d\u5230\u6709\u6642\u53ef\u4ee5\uff0c\u4f46\u662f\u53ea\u6709\u9019\u4e00\u5bb6\u5ba2\u6236\u624d\u6709\u6b64\u72c0\u6cc1\uff0c\u7576\u7136\u81ea\u5df1\u76f4\u89ba\u5224\u65b7\u4e00\u5b9a\u5ba2\u6236\u7aef\u554f\u984c\uff0c\u4f46\u662f\u5ba2\u6236\u81f3\u4e0a\uff0c\u6240\u4ee5\u53ea\u80fd\u5148\u5f9e\u81ea\u5df1\u9019\u7aef\u4f86\u76e4\u67e5\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u9996\u5148\u56e0\u70ba\u76ee\u524d\u6700\u7d42\u5c07\u90f5\u4ef6\u5bc4\u51fa\u90fd\u6703\u662f\u7531\u5730\u7aefspam \u51fa\u53bb(symantec messaging gateway,SMG)<\/p>\n<p>\u770b\u4e86\u4e00\u4e0bSMG =&gt; 450.4.4.1 connection time out&nbsp; <\/p>\n<p>\u4e14\u5c31\u7b97\u6709\u91cd\u65b0\u5bc4\u9001\u9084\u662f\u7121\u6cd5\u6210\u529f<\/p>\n<p><a href=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/713.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"713\" style=\"border-top: 0px; border-right: 0px; background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; border-left: 0px; display: inline; padding-right: 0px\" border=\"0\" alt=\"713\" src=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/713_thumb.jpg\" width=\"644\" height=\"126\"><\/a><\/p>\n<p>SMG \u4e0a\u7684\u6aa2\u67e5<\/p>\n<p>1. dns \u67e5\u8a62\u5ba2\u6236domain&nbsp; OK<\/p>\n<p>2.\u76f4\u63a5 ssh \u9023\u5230\u7ba1\u7406\u4ecb\u9762 ping \u53catelnet smtp \u5ba2\u6236\u7aef\u7684mx \u7d00\u9304 IP \u90fd\u662fOK\uff0cping \u4e5f\u6c92\u6709time out \u554f\u984c<\/p>\n<p>3.\u67e5\u8a62SMG KB\u6709\u63d0\u5230\u6b64\u8a0a\u606f\u53ef\u80fd\u8207\u9632\u706b\u7246\u6709\u95dc<\/p>\n<p><a href=\"https:\/\/knowledge.broadcom.com\/external\/article\/153019\/smtp-code-450-441-internal-connection-ti.html\">https:\/\/knowledge.broadcom.com\/external\/article\/153019\/smtp-code-450-441-internal-connection-ti.html<\/a>\u3000 <\/p>\n<p>\u6587\u4ef6\u63d0\u5230\u5982\u679c\u662fcisco asa \u8981\u628aDisable all esmtp_inspect features \uff0c\u9019\u8a2d\u5b9a\u672c\u4f86\u5c31\u662f\u662f\u5df2\u7d93\u505c\u6389\u4e86\u3002 <\/p>\n<p>\u8acb\u540c\u4e8b\u63d0\u4f9b\u5ba2\u6236\u7aef\u90f5\u4ef6\u7ba1\u7406\u54e1\u806f\u7d61\u65b9\u5f0f\u76f4\u63a5\u5c0d\u8ac7<\/p>\n<p>1. \u7576\u540c\u4e8b\u5bc4\u4fe1\u904e\u53bb\u7121\u6cd5\u6210\u529f\u6642\uff0c\u6211\u63d0\u4f9b\u6642\u9593\u9ede\u7d66\u5c0d\u65b9IT\uff0c\u5f97\u5230\u56de\u8986 \u4ed6\u5011\u7684spma \u6c92\u6709\u9023\u7dda\u7684\u7d00\u9304\uff0c\u7576\u7136\u6709\u5bc4OK\u7684\u5c31\u6709\u9023\u7dda\u7d00\u9304&nbsp; =.=<\/p>\n<p>2. \u8acb\u5ba2\u6236\u7aef\u628a\u516c\u53f8\u5169\u500b\u767c\u4fe1IP \u53ca\u7db2\u57df\u52a0\u5165\u767d\u540d\u55ae<\/p>\n<p>3.\u64d4\u5fc3\u5c0d\u65b9spam&nbsp; \u6709\u4e00\u4e9b\u963b\u64cb\u6a5f\u5236\u6240\u4ee5\u8acb\u5ba2\u6236\u63d0\u4f9b\u4e00\u4e0b\u5b83\u5011\u7684\u8a2d\u5b9a\u53c3\u8003<\/p>\n<p>\u5982\u4e0b\u5716<\/p>\n<p><a href=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/715.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"715\" style=\"border-top: 0px; border-right: 0px; background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; border-left: 0px; display: inline; padding-right: 0px\" border=\"0\" alt=\"715\" src=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/715_thumb.jpg\" width=\"644\" height=\"192\"><\/a><a href=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/716.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"716\" style=\"border-top: 0px; border-right: 0px; background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; border-left: 0px; display: inline; padding-right: 0px\" border=\"0\" alt=\"716\" src=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/716_thumb.jpg\" width=\"644\" height=\"307\"><\/a><a href=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/717.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"717\" style=\"border-top: 0px; border-right: 0px; background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; border-left: 0px; display: inline; padding-right: 0px\" border=\"0\" alt=\"717\" src=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/717_thumb.jpg\" width=\"644\" height=\"97\"><\/a><a href=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/719.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"719\" style=\"border-top: 0px; border-right: 0px; background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; border-left: 0px; display: inline; padding-right: 0px\" border=\"0\" alt=\"719\" src=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/719_thumb.jpg\" width=\"644\" height=\"273\"><\/a><\/p>\n<p>\u5176\u4e2d\u6709\u4e00\u9805 spf Authentication \u8a2d\u5b9a\uff0c\u4f46\u662f\u81ea\u5df1\u672c\u8eabDNS \u6c92\u6709\u505aspf \u8a2d\u5b9a\uff0c\u6240\u4ee5\u4ee5\u9632\u842c\u4e00<\/p>\n<p>\u5c31\u8a2d\u5b9a\u4e0a\u53bb\uff0c\u4f46\u4f3c\u4e4e\u6c92\u6709\u7528\u8655(\u56e0\u70ba\u81ea\u5df1\u89ba\u5f97\u82e5\u88ab\u9019\u4e9b\u6a5f\u5236\u963b\u64cb\u5728\u5c0d\u65b9sapm \u4e00\u5b9a\u6709\u7d00\u9304)<\/p>\n<p> spf \u76f8\u95dc\u8a2d\u5b9a\u8aaa\u660e\u53ef\u4ee5\u53c3\u8003\u4e0b\u9762\u9023\u7d50<\/p>\n<p><a title=\"https:\/\/openfind.freshdesk.com\/support\/solutions\/articles\/35000001746-spf-%E8%A8%AD%E5%AE%9A%E6%96%87%E4%BB%B6\" href=\"https:\/\/openfind.freshdesk.com\/support\/solutions\/articles\/35000001746-spf-%E8%A8%AD%E5%AE%9A%E6%96%87%E4%BB%B6\">https:\/\/openfind.freshdesk.com\/support\/solutions\/articles\/35000001746-spf-%E8%A8%AD%E5%AE%9A%E6%96%87%E4%BB%B6<\/a><\/p>\n<p><a title=\"https:\/\/blog.xuite.net\/tolarku\/blog\/233356505-DNS+%E8%A8%AD%E5%AE%9A+spf+%E8%A8%98%E9%8C%84+-+Sender+Policy+Framework\" href=\"https:\/\/blog.xuite.net\/tolarku\/blog\/233356505-DNS+%E8%A8%AD%E5%AE%9A+spf+%E8%A8%98%E9%8C%84+-+Sender+Policy+Framework\">https:\/\/blog.xuite.net\/tolarku\/blog\/233356505-DNS+%E8%A8%AD%E5%AE%9A+spf+%E8%A8%98%E9%8C%84+-+Sender+Policy+Framework<\/a><\/p>\n<p> 3.\u8a62\u554f\u5c0d\u65b9spam&nbsp; \u67b6\u69cb\uff0c\u53ea\u807d\u5230\u8aaa\u662f\u76f4\u63a5\u5c0d\u5916 \u6c92\u6709\u5728\u9632\u706b\u7246\u5f8c\u9762 (\u6211\u56b4\u91cd\u61f7\u7591\u61c9\u8a72\u90e8\u6703\u9019\u6a23\u5427)<\/p>\n<p>\u4ee5\u4e0a\u90fd\u7121\u982d\u7dd2\u5f8c\uff0c\u7adf\u7136\u662fconnection time out<\/p>\n<p>\u90a3\u53ea\u597d\u4f86\u6293\u5c01\u5305\uff0c\u4f46asa \u6211\u4e0d\u6703 \uff0c\u6240\u4ee5\u5c31\u5728\u6211\u7684FortiADC \u4e0a\u9762\u4f86\u6293\u770b\u770b<\/p>\n<p>\u7576spam\u4e0a\u5c07\u5bc4\u4e0d\u51fa\u53bb\u7684\u4fe1\u624b\u52d5\u91cd\u5bc4\u4e00\u6b21\u6642\uff0c\u6293\u5230\u7684\u5c01\u5305 \u600e\u9ebc\u90fd\u53ea\u6709ack <\/p>\n<p>\u6b63\u5e38TCP \u4e09\u5411\u4ea4\u63e1\u61c9\u8a72\u9084\u6709\u5176\u4ed6\u7684(\u5982\u4e0b\u5716)<\/p>\n<p><a href=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/771.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"771\" style=\"border-top: 0px; border-right: 0px; background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; border-left: 0px; display: inline; padding-right: 0px\" border=\"0\" alt=\"771\" src=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/771_thumb.jpg\" width=\"644\" height=\"440\"><\/a><\/p>\n<p>\u6307\u4ee4<\/p>\n<p>diagnose sniffer packet any &#8216;host 1.1.1.1 and tcp port 25&#8217; 3<\/p>\n<p><a href=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/770.jpg\"><img loading=\"lazy\" decoding=\"async\" title=\"770\" style=\"border-top: 0px; border-right: 0px; background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; border-left: 0px; display: inline; padding-right: 0px\" border=\"0\" alt=\"770\" src=\"https:\/\/blog.pmail.idv.tw\/wp-content\/uploads\/2021\/05\/770_thumb.jpg\" width=\"401\" height=\"484\"><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\u57fa\u65bc\u4e0a\u9762\u7a2e\u7a2e\u67e5\u8a62\uff0c\u61c9\u8a72\u662f\u5c0d\u65b9\u6c92\u6709\u56de\u61c9\u6211\uff0c\u6240\u4ee5\u5c0e\u81f4time out queue \u4fe1<\/p>\n<p>\u6240\u4ee5\u53ea\u597d\u8acbmail \u7ba1\u7406\u54e1\u5e6b\u5fd9\u770b\u770b\u63d0\u4f9b\u7db2\u7ba1\u4eba\u54e1\u8cc7\u8a0a\u7d66\u6211\u6211\u4f86\u95dc\u65bc\u9632\u706b\u7246\u9023\u7dda\u554f\u984c<\/p>\n<p>\u7576\u6211\u5c07\u4fe1\u4ef6\u767c\u7d66\u7db2\u7ba1\u5f8c\uff0c\u5927\u7d04\u9694\u5929\u6536\u5230\u56de\u4fe1<\/p>\n<p>\u8aaa\u4e86\u6211\u7684\u5bc4\u4fe1IP\u88ab\u5b83\u5011\u9632\u706b\u7246\u963b\u64cb\u4ed6\u5df2\u52a0\u5165\u767d\u540d\u55ae<\/p>\n<p> It was hit the &#8220;<u>Ipswitch IMail Server List Mailer imailsrv.exe Buffer-Overflow Vulnerability<\/u>&#8221; and got reject,I have added it to the whitelist first\u3002 <\/p>\n<p>\u4ee5\u4e0a\u4f5c\u500b\u7d00\u9304<\/p>\n<div class=\"21cd169d3c0f71e95b84db320302cb4a\" data-index=\"1\" style=\"float: right; margin:10px 0 10px 10px;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-8711325745898650\"\r\n     crossorigin=\"anonymous\"><\/script>\n<\/div>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>&nbsp; \u8fd1\u671f\u767c\u751f\u5bc4\u4fe1\u5230\u5ba2\u6236\u7aef\u5f8c\uff0c\u5ba2\u6236\u6709\u6642\u6703\u6536\u4e0d\u5230\u6709\u6642\u53ef\u4ee5\uff0c\u4f46\u662f\u53ea\u6709\u9019\u4e00\u5bb6\u5ba2 &hellip; <a href=\"https:\/\/blog.pmail.idv.tw\/?p=18744\">\u95b1\u8b80\u5168\u6587 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-18744","post","type-post","status-publish","format-standard","hentry","category-mail-spam"],"_links":{"self":[{"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/18744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18744"}],"version-history":[{"count":1,"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/18744\/revisions"}],"predecessor-version":[{"id":18745,"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/18744\/revisions\/18745"}],"wp:attachment":[{"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.pmail.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}