\u57df\u540d\/IP\u53cd\u89e3\u6790<\/p>\n
\u3000\u3000\u5728\u5783\u573e\u90ae\u4ef6\u6cdb\u6ee5\u7684\u4eca\u5929\uff0c\u5783\u573e\u90ae\u4ef6\u7ed9\u6211\u4eec\u7684\u751f\u6d3b\u3001\u5de5\u4f5c\u3001\u5b66\u4e60\u5e26\u6765\u4e86\u6781\u5927\u7684\u5371\u5bb3\u3002\u7531\u4e8eSMTP\u670d\u52a1\u5668\u4e4b\u95f4\u7f3a\u4e4f\u6709\u6548\u7684\u53d1\u9001\u8ba4\u8bc1\u673a\u5236\uff0c\u5373\u4f7f\u91c7\u7528\u4e86\u5783\u573e\u90ae\u4ef6\u8bc6\u522b\u963b\u62e6\u6280\u672f\u6548\u679c\u4ecd\u65e7\u4e00\u822c\uff0c\u518d\u8005\u5783\u573e\u90ae\u4ef6\u8bc6\u522b\u963b\u62e6\u6280\u672f\u4e3b\u8981\u662f\u5728\u6536\u5230\u4fe1\u4ef6\u540e\u6839\u636e\u4e00\u5b9a\u6761\u4ef6\u8fdb\u884c\u8bc6\u522b\u7684\uff0c\u9700\u8981\u8017\u8d39\u5927\u91cf\u670d\u52a1\u5668\u8d44\u6e90\uff0c\u5982\u679c\u80fd\u5728\u4fe1\u4ef6\u5230\u8fbe\u670d\u52a1\u5668\u4e4b\u524d\u5c31\u91c7\u53d6\u4e00\u5b9a\u624b\u6bb5\uff0c\u8fd9\u6837\u5c31\u80fd\u5927\u5927\u63d0\u9ad8\u670d\u52a1\u5668\u6548\u7387\u4e86\u3002\u56e0\u6b64\uff0c\u76ee\u524d\u8bb8\u591a\u90ae\u4ef6\u670d\u52a1\u5668\u5982sina.com\uff0chotmail.com\uff0cyahoo.com.cn\u7b49\u7b49\u90fd\u91c7\u7528\u4e86\u5783\u573e\u90ae\u4ef6\u8bc6\u522b\u963b\u62e6\u6280\u672f+IP\u53cd\u5411\u89e3\u6790\u9a8c\u8bc1\u6280\u672f\u4ee5\u66f4\u597d\u7684\u963b\u62e6\u5783\u573e\u90ae\u4ef6\u3002<\/p>\n
\u6211\u4eec\u5148\u6765\u4e86\u89e3\u4e00\u4e0b\u4ec0\u4e48\u662fIP\u53cd\u5411\u89e3\u6790\u3002\u5176\u5b9e\u4f5c\u8fc7DNS\u670d\u52a1\u5668\u7684\u670b\u53cb\u4e00\u5b9a\u4f1a\u77e5\u9053DNS\u670d\u52a1\u5668\u91cc\u6709\u4e24\u4e2a\u533a\u57df\uff0c\u5373\u201c\u6b63\u5411\u67e5\u627e\u533a\u57df\u201d\u548c\u201c\u53cd\u5411\u67e5\u627e\u533a\u57df\u201d\uff0c\u53cd\u5411\u67e5\u627e\u533a\u57df\u5373\u662f\u8fd9\u91cc\u6240\u8bf4\u7684IP\u53cd\u5411\u89e3\u6790\uff0c\u5b83\u7684\u4f5c\u7528\u5c31\u662f\u901a\u8fc7\u67e5\u8be2IP\u5730\u5740\u7684PTR\u8bb0\u5f55\u6765\u5f97\u5230\u8be5IP\u5730\u5740\u6307\u5411\u7684\u57df\u540d\uff0c\u5f53\u7136\uff0c\u8981\u6210\u529f\u5f97\u5230\u57df\u540d\u5c31\u5fc5\u9700\u8981\u6709IP\u5730\u5740\u7684 PTR\u8bb0\u5f55\u3002<\/p>\n
\u90a3\u4e48IP\u53cd\u5411\u89e3\u6790\u662f\u600e\u4e48\u88ab\u5e94\u7528\u5230\u90ae\u4ef6\u670d\u52a1\u5668\u4e2d\u6765\u963b\u62e6\u5783\u573e\u90ae\u4ef6\u7684\u5462\uff1f\u6211\u4eec\u6765\u770b\u770b\u4e0b\u9762\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n
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\u90a3\u4e48\u6211\u4eec\u5e94\u5f53\u5982\u4f55\u987a\u5229\u505a\u597d\u53cd\u5411\u89e3\u6790\uff1f\u9996\u5148\u8981\u6709\u56fa\u5b9a\u516c\u7f51IP\u5730\u5740\u3001\u53ef\u7528\u57df\u540d\uff08\u6700\u597d\u4e0d\u8981\u88ab\u5176\u5b83\u670d\u52a1\u6240\u7528\uff09\uff0c\u4f8b\u5982\u60a8\u6709diyway.net\u7684\u57df\u540d\uff0c\u60a8\u53ef\u4ee5\u8981\u6c42\u60a8\u7684\u57df\u540d\u6ce8\u518c\u5546\u4e3a\u60a8\u6dfb\u52a0\u4e00\u4e2amx.diyway.net\u7684\u57df\u540d\u5e76\u5c06\u5176A\u8bb0\u5f55\u6307\u5411\u60a8\u7684SMTP\u670d\u52a1\u5668\u51fa\u53e3\u516c\u7f51IP\u5730\u5740\uff0c\u5982\uff1a61.192.56.23\uff0c\u63a5\u7740\u8bf7\u4e0e\u60a8\u7684\u56fa\u5b9aIP\u6240\u5c5eISP\uff08\u4e00\u822c\u7535\u4fe1\u6216\u7f51\u901a\uff09\u8054\u7cfb\u8981\u6c42\u4e3a\u60a8\u7684IP\u53cd\u5411\u89e3\u6790\u81f3mx.diyway.net\u3002\u5b8c\u6210\u540e\u522b\u5fd8\u4e86\u5c06\u60a8\u7684SMTP\u670d\u52a1\u5668\u7684HELO\u57df\u540d\u6539\u4e3amx.diyway.net\uff0c\u8fd9\u6837\u624d\u53ef\u4ee5\u8fbe\u5230\u76ee\u7684\u3002<\/p>\n
=======================================================
nslookup \u2013qt=ptr yourIP
\u6bd4\u5982\u6211\u7684\u57df\u540d\u662fdiyway.net
\u6211\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u5730\u5740\u662f\uff1a mail.diyway.net
\u90ae\u7bb1\u7528\u6237\u540d\u79f0\u683c\u5f0f\u4e3ausername@diyway.net
\u5728\u90ae\u4ef6\u670d\u52a1\u5668\u4e0a\u8bbe\u7f6e\u90ae\u4ef6\u7cfb\u7edf\u7684HELO\u4e3a:mx.diyway.net
\u90ae\u4ef6\u670d\u52a1\u5668IP\u4e3a \uff1a61.192.56.23
\u627e\u5f53\u5730\u7535\u4fe1\u505a61.192.56.23\u8fd9\u4e2aIP\u53cd\u89e3\u6790\u5230mx.diyway.net<\/p>\n
\u5728Windows\u7cfb\u7edf\u4e2d\uff0c\u5728\u8fd0\u884c\u547d\u4ee4\u4e0b \u8f93\u5165 cmd \u518d\u5728\u6253\u5f00\u7684\u7a97\u53e3\u8f93\u5165 nslookup \u2013qt=ptr 61.192.56.23
\u8fd4\u56de\u4fe1\u606f\u5982\u4e0b\uff1a
C:\Documents and Settings\user>nslookup \u2013qt=ptr 61.192.56.23
Server: mx.diyway.net
Address: 61.192.56.23
\u8bf4\u660e\u8fd9\u4e2aIP\u7684\u53cd\u89e3\u6790\u5c31\u662f\u6210\u529f\u4e86\u3002<\/p>\n
\u8fd4\u56de\u4fe1\u606f\u5982\u4e0b
C:\Documents and Settings\user>nslookup \u2013qt=ptr 61.192.56.23
*** Can't find server name for address 61.142.80.154: Non-existent domain
Server: UnKnown
Address: 61.192.56.23
\u8bf4\u660e\u8fd9\u4e2aIP\u7684\u53cd\u89e3\u6790\u6ca1\u6709\u4f5c\u3002<\/p>\n
\u9759\u6001IP,FQDN,\u53cd\u89e3\u80fd\u89e3\u51b3SINA\u548cYAHOO\u7684\u95ee\u9898\uff0c\u4f46\u662f\u522b\u5fd8\u4e86\u5728DNS\u4e0a\u4f5cSPF\u89e3\u6790\u54e6\uff0c\u5fae\u8f6f\u7684Hotmail\u7cfb\u5217\u5219\u9700\u8981\u4f60\u5728 postmaster.live.cn\u4e0a\u53bb\u6ce8\u518cSPF\uff0c\u5982\u679c\u4f60\u7684IP\u4e0a\u6ca1\u6709SPF\u8bb0\u5f55\uff0c\u4fe1\u4ef6\u5c31\u5f88\u96be\u9001\u8fbe\u5230\u7684\u54e6.Gmail\u4e5f\u662f\u5982\u6b64\uff0c\u867d\u7136\u4ed6\u4eec\u4e0d\u8981\u6c42\u4f60\u53bb\u6ce8\u518cSPF\u8fd8\u662f\u4f1a\u68c0\u6d4b\u4f60\u6709\u6ca1\u6709SPF\u8bb0\u5f55<\/p>\n","protected":false},"excerpt":{"rendered":"
\u57df\u540d\/IP\u53cd\u89e3\u6790 \u3000\u3000\u5728\u5783\u573e\u90ae\u4ef6\u6cdb\u6ee5\u7684\u4eca\u5929\uff0c\u5783\u573e\u90ae\u4ef6\u7ed9\u6211\u4eec\u7684\u751f\u6d3b\u3001\u5de5\u4f5c\u3001\u5b66\u4e60\u5e26\u6765\u4e86\u6781\u5927\u7684\u5371\u5bb3\u3002\u7531\u4e8eSMTP\u670d\u52a1 […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[2629,2625,2630,2610,1970,2616],"class_list":["post-1721","post","type-post","status-publish","format-standard","hentry","category-email","tag-fqdn","tag-spf","tag-2630","tag-2610","tag-1970","tag-2616","category-31-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1721"}],"version-history":[{"count":0,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1721\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}