{"id":34425,"date":"2026-11-11T18:00:00","date_gmt":"2026-11-11T10:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=34425"},"modified":"2026-10-30T14:29:42","modified_gmt":"2026-10-30T06:29:42","slug":"vps-email-rejected-ptr-blacklist-fix","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/vps-email-rejected-ptr-blacklist-fix\/","title":{"rendered":"VPS \u90ae\u4ef6\u88ab\u62d2\u6536\u600e\u4e48\u529e\uff1aPTR \u53cd\u5411\u89e3\u6790\u3001IP \u4fe1\u8a89\u4e0e\u9ed1\u540d\u5355\u5904\u7406\u6307\u5357"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-email-ptr-cover.webp\" alt=\"VPS \u90ae\u4ef6\u88ab\u62d2\u6536\u6392\u67e5\u6307\u5357\u5c01\u9762\uff1a\u670d\u52a1\u5668\u53d1\u51fa\u7684\u90ae\u4ef6\u5728\u9014\u4e2d\u88ab\u62e6\u622a\u5f39\u56de\" loading=\"lazy\" \/><\/p>\n<p>\u5916\u8d38\u8be2\u4ef7\u90ae\u4ef6\u53d1\u51fa\u53bb\u5c31\u77f3\u6c89\u5927\u6d77\uff0c\u6216\u8005\u76f4\u63a5\u6536\u5230\u4e00\u5c01 550 \u62d2\u6536\u9000\u4fe1\u2014\u2014\u8fd9\u662f\u5f88\u591a\u7528 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u81ea\u5efa\u90ae\u4ef6\u670d\u52a1\u7684\u7ad9\u957f\u6700\u5e38\u9047\u5230\u7684\u95ee\u9898\u3002\u5bf9\u65b9\u670d\u52a1\u5668\u4e0d\u662f\u968f\u673a\u5201\u96be\u4f60\uff0c\u800c\u662f\u4f60\u7684\u53d1\u4fe1 IP \u5728\u5b83\u773c\u91cc&#8221;\u8eab\u4efd\u4e0d\u660e&#8221;\u6216&#8221;\u4fe1\u8a89\u4e0d\u826f&#8221;\u3002\u672c\u6587\u4f1a\u5e26\u4f60\u6309\u987a\u5e8f\u6392\u67e5 PTR \u53cd\u5411\u89e3\u6790\u3001IP \u4fe1\u8a89\u548c\u9ed1\u540d\u5355\u8bb0\u5f55\u8fd9\u4e09\u4e2a\u6700\u5e38\u89c1\u7684\u62d2\u6536\u539f\u56e0\uff0c\u5e76\u7ed9\u51fa\u6bcf\u4e00\u6b65\u7684\u5177\u4f53\u4fee\u590d\u547d\u4ee4\u548c\u9a8c\u8bc1\u65b9\u6cd5\uff0c\u5e2e\u52a9\u4f60\u628a\u90ae\u4ef6\u9001\u8fbe\u7387\u62c9\u56de\u6b63\u5e38\u6c34\u5e73\u3002<\/p>\n<h2>\u5148\u8bfb\u61c2\u9000\u4fe1\uff1a\u62d2\u6536\u4ee3\u7801\u5728\u544a\u8bc9\u4f60\u4ec0\u4e48<\/h2>\n<p>\u4fee\u590d\u4e4b\u524d\uff0c\u5148\u5f04\u6e05\u695a\u5bf9\u65b9\u4e3a\u4ec0\u4e48\u62d2\u6536\u3002\u540c\u6837\u662f\u88ab\u5f39\u56de\uff0c\u9000\u4fe1\u6b63\u6587\u91cc\u7684\u72b6\u6001\u7801\u542b\u4e49\u5b8c\u5168\u4e0d\u540c\uff0c\u5904\u7406\u65b9\u5411\u4e5f\u4e0d\u540c\u3002\u5e38\u89c1\u7684\u4e09\u7c7b\uff1a<\/p>\n<ul>\n<li><strong>550 Mail from IP rejected \/ spam<\/strong>\uff1a\u5bf9\u65b9\u8ba4\u4e3a\u4f60\u7684 IP \u662f\u5783\u573e\u90ae\u4ef6\u6765\u6e90\uff0c\u591a\u4e0e IP \u4fe1\u8a89\u6216\u9ed1\u540d\u5355\u6709\u5173\u3002<\/li>\n<li><strong>550 5.7.1 No PTR record found<\/strong>\uff1a\u660e\u786e\u6307\u5411\u7f3a\u5c11 PTR \u53cd\u5411\u89e3\u6790\uff0c\u5c5e\u4e8e\u914d\u7f6e\u7f3a\u5931\u3002<\/li>\n<li><strong>421 \/ 450 temporary failure<\/strong>\uff1a\u4e34\u65f6\u6027\u62d2\u7edd\uff0c\u53ef\u80fd\u662f\u5bf9\u65b9\u9650\u6d41\u6216\u4f60\u7684 IP \u65b0\u4e0a\u7ebf\u8fd8\u6ca1\u6709\u5efa\u7acb\u4fe1\u8a89\uff0c\u53ef\u4ee5\u89c2\u5bdf\u540e\u518d\u91cd\u8bd5\u3002<\/li>\n<\/ul>\n<p>\u62ff\u5230\u9000\u4fe1\u540e\uff0c\u5148\u5728\u6b63\u6587\u91cc\u641c&#8221;550&#8243;&#8221;421&#8243;&#8221;PTR&#8221;&#8221;blacklist&#8221;\u8fd9\u4e9b\u5b57\u6837\uff0c\u786e\u5b9a\u5c5e\u4e8e\u54ea\u4e00\u7c7b\u3002\u4e0b\u9762\u6309&#8221;\u5148\u67e5\u8eab\u4efd\u3001\u518d\u67e5\u4fe1\u8a89&#8221;\u7684\u987a\u5e8f\u9010\u5c42\u5904\u7406\u3002<\/p>\n<h2>\u7b2c\u4e00\u6b65\uff1a\u786e\u8ba4 PTR \u53cd\u5411\u89e3\u6790\u662f\u5426\u914d\u7f6e\u6b63\u786e<\/h2>\n<p>PTR\uff08Pointer\uff0c\u53cd\u5411\u89e3\u6790\u8bb0\u5f55\uff09\u662f\u8ba9\u4f60\u7684\u53d1\u4fe1 IP \u80fd&#8221;\u53cd\u67e5\u51fa\u57df\u540d&#8221;\u7684 DNS \u8bb0\u5f55\u3002\u4e3b\u6d41\u90ae\u4ef6\u670d\u52a1\u5546\uff08\u5982 Gmail\u3001Outlook\uff09\u5728\u6536\u4fe1\u65f6\u51e0\u4e4e\u90fd\u4f1a\u505a\u4e00\u6b21\u53cd\u5411\u67e5\u8be2\uff1aIP \u67e5\u51fa\u6765\u7684\u4e3b\u673a\u540d\uff0c\u518d\u6b63\u5411\u89e3\u6790\u56de\u53bb\u5fc5\u987b\u6307\u5411\u540c\u4e00\u4e2a IP\uff0c\u8fd9\u4e2a\u53cc\u5411\u4e00\u81f4\u53eb Forward-Confirmed reverse DNS\uff08FCrDNS\uff09\u3002\u67e5\u4e0d\u5230 PTR\uff0c\u6216\u8005 PTR \u4e0e\u6b63\u5411\u89e3\u6790\u5bf9\u4e0d\u4e0a\uff0c\u90ae\u4ef6\u5927\u6982\u7387\u88ab\u62d2\u3002<\/p>\n<p>\u5148\u5728\u672c\u673a\u67e5\u8be2\u5f53\u524d IP \u7684 PTR \u8bb0\u5f55\uff1a<\/p>\n<pre><code># \u628a 203.0.113.10 \u6362\u6210\u4f60 VPS \u7684\u516c\u7f51 IP\ndig -x 203.0.113.10 +short\n<\/code><\/pre>\n<p>\u5982\u679c\u6ca1\u6709\u4efb\u4f55\u8f93\u51fa\uff0c\u8bf4\u660e PTR \u8fd8\u6ca1\u914d\u7f6e\u3002\u8fd9\u91cc\u6709\u4e00\u4e2a\u65b0\u624b\u5e38\u8e29\u7684\u5751\uff1a<strong>PTR \u8bb0\u5f55\u4e0d\u5728\u4f60\u57df\u540d\u7684 DNS \u9762\u677f\u91cc\u8bbe\u7f6e\uff0c\u800c\u662f\u5728 IP \u7684\u5f52\u5c5e\u65b9\u8bbe\u7f6e<\/strong>\u3002VPS \u7684 IP \u5c5e\u4e8e\u673a\u623f\u6216\u4e91\u670d\u52a1\u5546\uff0c\u6240\u4ee5\u4f60\u9700\u8981\u5230\u670d\u52a1\u5546\u7684\u63a7\u5236\u9762\u677f\u91cc\u63d0\u4ea4 PTR \u8bbe\u7f6e\u8bf7\u6c42\uff0c\u628a\u4e3b\u673a\u540d\u8bbe\u4e3a\u4f60\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u57df\u540d\uff0c\u4f8b\u5982 <code>mail.example.com<\/code>\u3002<\/p>\n<p>\u8bbe\u7f6e\u5b8c\u6210\u540e\u505a\u53cc\u5411\u9a8c\u8bc1\uff1a<\/p>\n<pre><code># \u53cd\u67e5\uff1aIP \u5e94\u8fd4\u56de mail.example.com\ndig -x 203.0.113.10 +short\n\n# \u6b63\u67e5\uff1amail.example.com \u5e94\u8fd4\u56de\u540c\u4e00\u4e2a IP\ndig mail.example.com A +short\n<\/code><\/pre>\n<p>\u4e24\u6761\u547d\u4ee4\u7684\u7ed3\u679c\u80fd\u4e92\u76f8\u5370\u8bc1\uff0cPTR \u624d\u7b97\u914d\u7f6e\u5b8c\u6210\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-email-ptr-forward-reverse.webp\" alt=\"PTR \u53cd\u5411\u89e3\u6790\u53cc\u5411\u9a8c\u8bc1\u793a\u610f\uff1aIP \u4e0e\u4e3b\u673a\u540d\u6b63\u5411\u53cd\u5411\u67e5\u8be2\u4e92\u76f8\u5370\u8bc1\" loading=\"lazy\" \/><\/p>\n<p>\u6ce8\u610f\uff1aPTR \u751f\u6548\u53ef\u80fd\u6709\u51e0\u5206\u949f\u5230\u51e0\u5c0f\u65f6\u7684 DNS\uff08\u57df\u540d\u89e3\u6790\u7cfb\u7edf\uff09\u4f20\u64ad\u5ef6\u8fdf\uff0c\u521a\u6539\u5b8c\u5c31\u53d1\u6d4b\u8bd5\u90ae\u4ef6\u4ecd\u88ab\u62d2\uff0c\u5148\u7b49\u4e00\u4f1a\u513f\u518d\u91cd\u8bd5\u3002<\/p>\n<h2>\u7b2c\u4e8c\u6b65\uff1a\u8865\u9f50 SPF\u3001DKIM\u3001DMARC \u4e09\u4ef6\u5957<\/h2>\n<p>PTR \u89e3\u51b3\u7684\u662f&#8221;IP \u7684\u8eab\u4efd&#8221;\uff0c\u800c SPF\u3001DKIM\u3001DMARC \u89e3\u51b3\u7684\u662f&#8221;\u90ae\u4ef6\u662f\u4e0d\u662f\u4f60\u672c\u4eba\u53d1\u7684&#8221;\u3002\u4e09\u8005\u7f3a\u4e00\uff0c\u5f88\u591a\u670d\u52a1\u5668\u4f1a\u76f4\u63a5\u6309\u5783\u573e\u90ae\u4ef6\u5904\u7406\uff1a<\/p>\n<ul>\n<li><strong>SPF<\/strong>\uff08\u53d1\u4ef6\u4eba\u7b56\u7565\u6846\u67b6\uff09\uff1a\u5728\u57df\u540d\u7684 TXT \u8bb0\u5f55\u91cc\u58f0\u660e\u54ea\u4e9b IP \u6709\u6743\u66ff\u4f60\u53d1\u4fe1\u3002\u5178\u578b\u914d\u7f6e\uff1a<code>v=spf1 ip4:203.0.113.10 -all<\/code>\uff0c\u628a <code>-all<\/code> \u5199\u6210\u786c\u5931\u8d25\uff0c\u4e0d\u8981\u7528 <code>?all<\/code> \u8fd9\u79cd\u5bbd\u677e\u5199\u6cd5\u3002<\/li>\n<li><strong>DKIM<\/strong>\uff08\u57df\u540d\u5bc6\u94a5\u8bc6\u522b\u90ae\u4ef6\uff09\uff1a\u7ed9\u6bcf\u5c01\u90ae\u4ef6\u52a0\u6570\u5b57\u7b7e\u540d\uff0c\u6536\u4ef6\u65b9\u7528 DNS \u91cc\u7684\u516c\u94a5\u9a8c\u7b7e\u3002\u7528 OpenDKIM \u7b49\u5de5\u5177\u751f\u6210\u5bc6\u94a5\u5bf9\u540e\uff0c\u628a\u516c\u94a5\u53d1\u5e03\u4e3a <code>default._domainkey.example.com<\/code> \u7684 TXT \u8bb0\u5f55\u3002<\/li>\n<li><strong>DMARC<\/strong>\uff1a\u544a\u8bc9\u6536\u4ef6\u65b9&#8221;SPF\/DKIM \u90fd\u6ca1\u8fc7\u600e\u4e48\u529e&#8221;\u3002\u5efa\u8bae\u4ece <code>p=none<\/code> \u8d77\u6b65\u89c2\u5bdf\u62a5\u544a\uff0c\u786e\u8ba4\u5408\u6cd5\u90ae\u4ef6\u90fd\u80fd\u901a\u8fc7\u540e\uff0c\u518d\u6536\u7d27\u4e3a <code>p=quarantine<\/code> \u6216 <code>p=reject<\/code>\u3002<\/li>\n<\/ul>\n<p>\u68c0\u67e5\u8fd9\u4e09\u6761\u8bb0\u5f55\u662f\u5426\u5df2\u6b63\u786e\u53d1\u5e03\uff1a<\/p>\n<pre><code>dig TXT example.com +short | grep spf\ndig TXT default._domainkey.example.com +short\ndig TXT _dmarc.example.com +short\n<\/code><\/pre>\n<p>\u8fd9\u4e09\u9879\u7684\u5177\u4f53\u751f\u6210\u4e0e\u914d\u7f6e\u6b65\u9aa4\uff0c\u5728\u6211\u4eec\u4e4b\u524d\u53d1\u5e03\u7684 <a href=\"https:\/\/cn.hostease.com\/blog\/tutorials\/vps-mail-server-setup\/\">VPS \u90ae\u4ef6\u670d\u52a1\u5668\u642d\u5efa\u6307\u5357<\/a> \u91cc\u6709\u5b8c\u6574\u6d41\u7a0b\uff0c\u53ef\u4ee5\u5bf9\u7167\u64cd\u4f5c\u3002\u5982\u679c\u90ae\u4ef6\u5df2\u7ecf\u80fd\u53d1\u51fa\u4f46\u603b\u8fdb\u5bf9\u65b9\u7684\u5783\u573e\u7bb1\u800c\u4e0d\u662f\u88ab\u786c\u62d2\uff0c\u91cd\u70b9\u6392\u67e5\u65b9\u5411\u4f1a\u6709\u6240\u4e0d\u540c\uff0c\u53ef\u4ee5\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/email-spam-spf-dkim-dmarc-setup\/\">\u90ae\u4ef6\u8fdb\u5783\u573e\u7bb1\u7684 SPF\/DKIM\/DMARC \u914d\u7f6e\u6307\u5357<\/a>\u8fdb\u4e00\u6b65\u5904\u7406\u3002<\/p>\n<h2>\u7b2c\u4e09\u6b65\uff1a\u67e5\u8be2 IP \u662f\u5426\u8fdb\u4e86\u9ed1\u540d\u5355<\/h2>\n<p>PTR \u548c\u4e09\u4ef6\u5957\u90fd\u6b63\u5e38\uff0c\u90ae\u4ef6\u4ecd\u88ab\u5927\u9762\u79ef\u62d2\u6536\uff0c\u5c31\u8981\u6000\u7591\u53d1\u4fe1 IP \u5df2\u7ecf\u88ab\u5217\u5165\u4e86\u516c\u5f00\u9ed1\u540d\u5355\uff08DNSBL\uff0c\u57df\u540d\u9ed1\u540d\u5355\u7cfb\u7edf\uff09\u3002\u9ed1\u540d\u5355\u662f\u53cd\u5783\u573e\u90ae\u4ef6\u7ec4\u7ec7\u7ef4\u62a4\u7684 IP \u6570\u636e\u5e93\uff0c\u6536\u4ef6\u65b9\u670d\u52a1\u5668\u4f1a\u5b9e\u65f6\u67e5\u8be2\u8fd9\u4e9b\u5e93\u6765\u51b3\u5b9a\u662f\u5426\u62d2\u6536\u3002<\/p>\n<p>\u5e38\u7528\u7684\u516c\u5f00\u67e5\u8be2\u5165\u53e3\u5305\u62ec Spamhaus\u3001Barracuda \u548c MXToolbox \u7684\u805a\u5408\u67e5\u8be2\u9875\u9762\u3002\u8f93\u5165\u4f60\u7684\u53d1\u4fe1 IP\uff0c\u5982\u679c\u547d\u4e2d\uff0c\u7ed3\u679c\u9875\u4f1a\u6807\u6ce8\u5217\u5165\u7684\u9ed1\u540d\u5355\u540d\u79f0\u548c\u539f\u56e0\u3002\u4e5f\u53ef\u4ee5\u76f4\u63a5\u7528\u547d\u4ee4\u884c\u67e5\u4e3b\u6d41\u9ed1\u540d\u5355\uff1a<\/p>\n<pre><code># \u53cd\u8f6c IP \u540e\u67e5\u8be2 Spamhaus SBL \u6570\u636e\u5e93\uff0c\u6709\u8fd4\u56de\u5373\u547d\u4e2d\ndig 10.113.0.203.zen.spamhaus.org +short\n<\/code><\/pre>\n<p>\u547d\u4e2d\u9ed1\u540d\u5355\u540e\u7684\u5904\u7406\u8def\u5f84\u5206\u4e24\u79cd\u60c5\u51b5\uff1a<\/p>\n<ol>\n<li><strong>\u6709\u81ea\u52a9\u79fb\u9664\u5165\u53e3\u7684\u540d\u5355<\/strong>\uff1a\u6309\u63d0\u793a\u63d0\u4ea4\u79fb\u9664\u7533\u8bf7\u3002\u591a\u6570\u540d\u5355\u4f1a\u5148\u8981\u6c42\u4f60\u4fee\u590d\u6839\u6e90\u95ee\u9898\uff08\u4f8b\u5982\u670d\u52a1\u5668\u4e0a\u5b58\u5728\u88ab\u6ee5\u53d1\u7684\u5783\u573e\u90ae\u4ef6\u811a\u672c\uff09\uff0c\u5355\u7eaf\u53cd\u590d\u7533\u8bf7\u79fb\u9664\u800c\u4e0d\u4fee\u590d\uff0c\u5f88\u5feb\u4f1a\u88ab\u91cd\u65b0\u5217\u5165\u3002<\/li>\n<li><strong>\u4e0d\u652f\u6301\u7533\u8bc9\u7684\u540d\u5355<\/strong>\uff1a\u8fd9\u7c7b\u540d\u5355\u901a\u5e38\u6309\u6d41\u91cf\u884c\u4e3a\u81ea\u52a8\u66f4\u65b0\uff0c\u53ea\u8981\u505c\u6b62\u53ef\u7591\u53d1\u4fe1\u884c\u4e3a\u3001\u4fdd\u6301\u4e00\u6bb5\u65f6\u95f4\u7684\u6b63\u5e38\u6d41\u91cf\uff0c\u8bb0\u5f55\u4f1a\u81ea\u52a8\u8fc7\u671f\uff0c\u4e00\u822c\u51e0\u5929\u5230\u51e0\u5468\u4e0d\u7b49\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u91cc\u8981\u7279\u522b\u63d0\u9192\uff1a\u5171\u4eab IP \u73af\u5883\u4e0b\uff0c\u540c IP \u5176\u4ed6\u7528\u6237\u7684\u53d1\u4fe1\u884c\u4e3a\u4e5f\u4f1a\u8fde\u7d2f\u4f60\u7684\u4fe1\u8a89\u3002\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u5bf9\u90ae\u4ef6\u9001\u8fbe\u7387\u8981\u6c42\u9ad8\u7684\u5916\u8d38\u7ad9\u70b9\uff0c\u6211\u4eec\u5efa\u8bae\u628a\u90ae\u4ef6\u670d\u52a1\u653e\u5728\u72ec\u7acb IP \u4e0a\u2014\u2014\u6bd4\u5982 Hostease \u7684 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS \u4e3b\u673a<\/a>\u652f\u6301\u72ec\u7acb IP \u8d44\u6e90\uff0c\u53d1\u4fe1\u4fe1\u8a89\u4e0d\u4f1a\u88ab\u90bb\u5c45\u62d6\u7d2f\uff0c\u6392\u67e5\u95ee\u9898\u65f6\u53d8\u91cf\u4e5f\u66f4\u5c11\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-email-ip-blacklist.webp\" alt=\"IP \u88ab\u5217\u5165\u90ae\u4ef6\u9ed1\u540d\u5355\u793a\u610f\uff1a\u4fe1\u4ef6\u88ab\u7ea2\u8272\u5370\u7ae0\u6807\u8bb0\u62e6\u622a\" loading=\"lazy\" \/><\/p>\n<h2>\u7b2c\u56db\u6b65\uff1a\u7ed9\u65b0 IP \u5efa\u7acb\u4fe1\u8a89\u7684\u65e5\u5e38\u52a8\u4f5c<\/h2>\n<p>\u9ed1\u540d\u5355\u6e05\u5e72\u51c0\u3001PTR \u914d\u7f6e\u6b63\u786e\u4e4b\u540e\uff0c\u65b0 IP \u6216\u521a&#8221;\u6d17\u767d&#8221;\u7684 IP \u8fd8\u9700\u8981\u9010\u6b65\u79ef\u7d2f\u4fe1\u8a89\u3002\u8fd9\u4e2a\u9636\u6bb5\u6700\u5bb9\u6613\u72af\u7684\u9519\u8bef\u662f\u7a81\u7136\u5927\u91cf\u53d1\u4fe1\uff0c\u53cd\u800c\u89e6\u53d1\u6536\u4ef6\u65b9\u7684\u9650\u6d41\u7b56\u7565\u3002<\/p>\n<p>\u65e5\u5e38\u7ef4\u62a4\u4e0a\uff0c\u6709\u51e0\u4ef6\u4e8b\u503c\u5f97\u575a\u6301\uff1a<\/p>\n<ul>\n<li><strong>\u63a7\u5236\u53d1\u4fe1\u91cf\u722c\u5761<\/strong>\uff1a\u65b0 IP \u5934\u4e00\u4e24\u5468\u6bcf\u5929\u63a7\u5236\u5728\u51e0\u5341\u5c01\u4ee5\u5185\uff0c\u4e4b\u540e\u6309\u5468\u9010\u6b65\u653e\u5927\uff0c\u907f\u514d\u4e00\u5929\u51b2\u5230\u4e0a\u5343\u5c01\u3002<\/li>\n<li><strong>\u6e05\u7406\u65e0\u6548\u5730\u5740<\/strong>\uff1a\u786c\u9000\uff08\u7528\u6237\u4e0d\u5b58\u5728\u7684\u5730\u5740\uff09\u6bd4\u4f8b\u63a7\u5236\u5728 2% \u4ee5\u4e0b\uff0c\u9000\u4fe1\u7387\u8fc7\u9ad8\u662f\u4fe1\u8a89\u4e0b\u964d\u6700\u5feb\u7684\u56e0\u7d20\u3002<\/li>\n<li><strong>\u63d0\u4f9b\u660e\u786e\u7684\u9000\u8ba2\u5165\u53e3<\/strong>\uff1a\u8425\u9500\u90ae\u4ef6\u6ca1\u6709\u4e00\u952e\u9000\u8ba2\uff0c\u88ab\u7528\u6237\u624b\u52a8\u6807\u8bb0&#8221;\u5783\u573e\u90ae\u4ef6&#8221;\u7684\u6b21\u6570\u4f1a\u76f4\u63a5\u62c9\u4f4e IP \u4fe1\u8a89\u3002<\/li>\n<li><strong>\u76d1\u63a7\u670d\u52a1\u5668\u662f\u5426\u88ab\u6ee5\u7528<\/strong>\uff1a\u5b9a\u671f\u68c0\u67e5\u90ae\u4ef6\u961f\u5217 <code>mailq<\/code> \u548c\u8bbf\u95ee\u65e5\u5fd7\uff0c\u9632\u6b62\u7f51\u9875\u88ab\u5165\u4fb5\u540e\u6ca6\u4e3a\u53d1\u5783\u573e\u90ae\u4ef6\u7684\u8df3\u677f\u3002\u670d\u52a1\u5668\u5c42\u9762\u7684\u57fa\u7840\u52a0\u56fa\u65b9\u6cd5\u53ef\u4ee5\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/server-security-hardening-checklist\/\">\u670d\u52a1\u5668\u5b89\u5168\u52a0\u56fa\u6e05\u5355<\/a>\uff0c\u628a\u5165\u53e3\u5148\u5b88\u4f4f\u3002<\/li>\n<li><strong>\u56fa\u5b9a\u53d1\u4fe1 IP \u548c\u57df\u540d<\/strong>\uff1a\u9891\u7e41\u66f4\u6362\u53d1\u4fe1 IP \u4f1a\u8ba9\u5df2\u79ef\u7d2f\u7684\u4fe1\u8a89\u6e05\u96f6\uff0c\u8fc1\u79fb\u670d\u52a1\u5668\u65f6\u4e5f\u8981\u628a\u90ae\u4ef6\u8bb0\u5f55\u540c\u6b65\u8fc1\u79fb\uff0c\u76f8\u5173\u68c0\u67e5\u9879\u53ef\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/migration-dns-ssl-mail-checklist\/\">\u8fc1\u79fb\u540e DNS\u3001SSL \u4e0e\u90ae\u4ef6\u8054\u52a8\u68c0\u67e5\u6e05\u5355<\/a>\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-email-reputation-rebuild.webp\" alt=\"\u65b0 IP \u90ae\u4ef6\u4fe1\u8a89\u91cd\u5efa\u56db\u9636\u6bb5\u793a\u610f\uff1a\u53d1\u4fe1\u91cf\u9636\u68af\u5f0f\u9010\u6b65\u653e\u5927\" loading=\"lazy\" \/><\/p>\n<h2>\u6392\u969c\u987a\u5e8f\u603b\u7ed3\u4e0e\u884c\u52a8\u5efa\u8bae<\/h2>\n<p>\u628a\u6574\u6761\u6392\u67e5\u8def\u5f84\u4e32\u8d77\u6765\uff1a\u5148\u8bfb\u9000\u4fe1\u4ee3\u7801\u5b9a\u4f4d\u7c7b\u522b\uff0c\u518d\u786e\u8ba4 PTR \u53cd\u5411\u89e3\u6790\u53cc\u5411\u4e00\u81f4\uff0c\u7136\u540e\u8865\u9f50 SPF\/DKIM\/DMARC \u4e09\u4ef6\u5957\uff0c\u63a5\u7740\u67e5\u9ed1\u540d\u5355\u5e76\u7533\u8bc9\u6216\u7b49\u5f85\u8fc7\u671f\uff0c\u6700\u540e\u901a\u8fc7\u53d1\u4fe1\u91cf\u722c\u5761\u91cd\u5efa IP \u4fe1\u8a89\u3002\u7edd\u5927\u591a\u6570&#8221;\u90ae\u4ef6\u88ab\u62d2\u6536&#8221;\u7684\u95ee\u9898\u90fd\u51fa\u5728\u524d\u4e09\u6b65\u7684\u914d\u7f6e\u7f3a\u5931\u4e0a\uff0c\u6309\u987a\u5e8f\u8d70\u4e00\u904d\u901a\u5e38\u5c31\u80fd\u89e3\u51b3\u3002<\/p>\n<p>\u5982\u679c\u4f60\u521a\u8d2d\u4e70 VPS \u51c6\u5907\u81ea\u5efa\u90ae\u4ef6\u670d\u52a1\uff0c\u5efa\u8bae\u5728\u6b63\u5f0f\u5bf9\u5916\u53d1\u4fe1\u524d\uff0c\u5148\u7528 <a href=\"https:\/\/www.mail-tester.com\/\">mail-tester<\/a> \u8fd9\u7c7b\u5de5\u5177\u505a\u4e00\u6b21\u6ee1\u5206\u6d4b\u8bd5\uff0c\u628a\u95ee\u9898\u5728\u4e0a\u7ebf\u524d\u66b4\u9732\u51fa\u6765\u3002\u800c\u5982\u679c\u4f60\u4e0d\u60f3\u628a\u7cbe\u529b\u82b1\u5728\u8fd9\u4e9b\u5e95\u5c42\u914d\u7f6e\u4e0a\uff0c\u4e5f\u53ef\u4ee5\u8003\u8651\u4f7f\u7528 Hostease \u7684<a href=\"https:\/\/cn.hostease.com\/shared-hosting.html\">\u865a\u62df\u4e3b\u673a<\/a>\u65b9\u6848\uff0c\u90ae\u4ef6\u670d\u52a1\u7531\u5e73\u53f0\u7edf\u4e00\u7ef4\u62a4 SPF\/PTR \u7b49\u57fa\u7840\u914d\u7f6e\uff0cSSL\uff08\u5b89\u5168\u5957\u63a5\u5c42\u8bc1\u4e66\uff09\u4e0e\u7ad9\u70b9\u8bc1\u4e66\u4e5f\u662f\u5e73\u53f0\u81ea\u52a8\u7eed\u671f\uff0c\u4f60\u53ea\u9700\u8981\u4e13\u6ce8\u4e1a\u52a1\u672c\u8eab\u3002\u603b\u7ed3\u4e00\u53e5\u8bdd\uff1a\u90ae\u4ef6\u88ab\u62d2\u6536\u4e0d\u53ef\u6015\uff0c\u5b83\u53ea\u662f\u670d\u52a1\u5668\u5728\u544a\u8bc9\u4f60&#8221;\u8eab\u4efd\u6750\u6599\u8fd8\u6ca1\u5907\u9f50&#8221;\uff0c\u6309\u672c\u6587\u7684\u6e05\u5355\u8865\u9f50\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>VPS \u53d1\u51fa\u7684\u90ae\u4ef6\u88ab\u5bf9\u65b9\u62d2\u6536\uff1f\u672c\u6587\u6559\u4f60\u6392\u67e5 PTR \u53cd\u5411\u89e3\u6790\u3001IP \u4fe1\u8a89\u4e0e\u9ed1\u540d\u5355\u8bb0\u5f55\uff0c\u6309\u6b65\u9aa4\u4fee\u590d\u5e76\u6062\u590d\u90ae\u4ef6\u9001\u8fbe\u7387\u3002<\/p>\n","protected":false},"author":2,"featured_media":34421,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3822],"tags":[177,5519,882,628],"class_list":["post-34425","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-ip","tag-ptr","tag-vps","tag-628"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/vps-email-ptr-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34425","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=34425"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34425\/revisions"}],"predecessor-version":[{"id":34426,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34425\/revisions\/34426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/34421"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=34425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=34425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=34425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}