\u60a8\u6bcf\u5929\u4f7f\u7528\u5916\u53d1\u90ae\u4ef6 SMTP \u670d\u52a1\u5668\u53d1\u9001\u591a\u5c11\u5c01\u4fe1\uff1f\u4e00\u767e\u5c01\uff1f\u4e00\u5343\u5c01\uff1f<\/p>\n
<\/p>\n
\u60a8\u4f7f\u7528\u6279\u91cf\u90ae\u4ef6\u4e0e\u5ba2\u6237\u6c9f\u901a\uff0c\u53d1\u9001\u65b0\u95fb\u7b80\u62a5\u548c\u5546\u4e1a\u63d0\u6848\uff0c\u8fd9\u662f\u60a8\u4e1a\u52a1\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002<\/p>\n
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6709\u65f6\u60a8\u4f1a\u9047\u5230 \u201c\u60a8\u7684\u90ae\u4ef6\u65e0\u6cd5\u6295\u9012 \u201d\u7684\u95ee\u9898\u3002\u8fd9\u5f88\u6b63\u5e38\uff0c\u4e00\u5343\u5c01\u90ae\u4ef6\u4e2d\u4f1a\u6709 5-10 \u5c01\u65e0\u6cd5\u6295\u9012\uff08\u5f53\u7136\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u6e05\u6670\u3001\u5065\u5eb7\u548c\u7ef4\u62a4\u826f\u597d\u7684\u8ba2\u9605\u8005\u5217\u8868\u7684\u8bdd\uff09\u3002.<\/p>\n
\u73b0\u5728\uff0c\u5982\u679c\u60a8\u7684 10-20% \u6761\u751a\u81f3\u5168\u90e8\u90ae\u4ef6\u90fd\u65e0\u6cd5\u5230\u8fbe\u76ee\u7684\u5730\uff0c\u4f1a\u53d1\u751f\u4ec0\u4e48\u60c5\u51b5\u5462\uff1f\u5982\u679c\u6709\u4eba\u628a\u4f60\u5f52\u7c7b\u4e3a\u5783\u573e\u90ae\u4ef6\u53d1\u9001\u8005\uff0c\u8fd9\u4e2a\u5669\u68a6\u5f88\u53ef\u80fd\u5c31\u4f1a\u5b9e\u73b0\u3002.<\/p>\n
\u5982\u4eca\uff0c\u5728\u6240\u6709\u53d1\u9001\u7684\u7535\u5b50\u90ae\u4ef6\u4e2d\uff0c\u51e0\u4e4e\u6709 90% \u90fd\u662f\u5783\u573e\u90ae\u4ef6\u3002\u56e0\u6b64\uff0c\u6bcf\u4e2a\u4eba\u90fd\u8bd5\u56fe\u907f\u514d\u5783\u573e\u90ae\u4ef6\u4e5f\u5c31\u4e0d\u8db3\u4e3a\u5947\u4e86\u3002\u8fc7\u6ee4\u5668\u4f1a\u5c3d\u53ef\u80fd\u591a\u5730\u62e6\u622a\u90ae\u4ef6\uff0c\u63d0\u4f9b\u5546\u4e5f\u4f1a\u5efa\u7acb\u66f4\u4e25\u683c\u7684\u53cd\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u5668\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u60a8\u7684\u5408\u6cd5\u5546\u4e1a\u4fe1\u51fd\u6709\u65f6\u5c31\u4f1a\u88ab\u62e6\u622a\u3002.<\/p>\n
\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u65f6\uff0c\u60a8\u4f1a\u975e\u5e38\u82e6\u607c\u3002\u8ba9\u6211\u6765\u5e2e\u60a8\u628a\u53cd\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u5668\u53d8\u6210\u60a8\u7684\u670b\u53cb\uff0c\u5e76\u5e2e\u60a8\u914d\u7f6e\u81ea\u5df1\u7684\u5916\u53d1\u90ae\u4ef6 SMTP \u670d\u52a1\u5668\u3002\u4e4b\u540e\uff0c\u53cd\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u5668\u5c31\u4f1a\u4ece\u8fdc\u5904\u8ba4\u51fa\u60a8\u7684\u90ae\u4ef6\uff0c\u5e76\u628a\u5b83\u4eec\u5f53\u4f5c\u8001\u670b\u53cb\u3002.<\/p>\n
\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u6765\u770b\u770b\u4e0b\u56fe\u3002\u5b83\u63cf\u8ff0\u4e86\u60a8\u5728\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u65f6\u7684\u57fa\u672c\u6b65\u9aa4\u3002.<\/p>\n
\u5f53\u7136\uff0c\u6211\u5047\u5b9a\u4f60\u6709\u4e00\u4e2a\u5065\u5eb7\u3001\u5b8c\u5168\u5408\u6cd5\u7684\u9009\u62e9\u52a0\u5165\u5217\u8868\uff0c\u800c\u4e14\u4f60\u7684\u4fe1\u606f\u4e0d\u5c5e\u4e8e\u5783\u573e\u90ae\u4ef6\u3002\u5426\u5219\uff0c\u8fd9\u4e9b\u89c4\u5219\u5bf9\u4f60\u7684\u5e2e\u52a9\u4e0d\u5927\u3002.<\/p>\n
\u4e3a\u6b64\uff0c\u6211\u4eec\u9700\u8981\u9075\u5b88\u4e94\u6761\u7b80\u5355\u7684\u89c4\u5219\u3002\u8fd9\u4e9b\u89c4\u5219\u7684\u53d1\u660e\u662f\u4e3a\u4e86\u5728\u90ae\u4ef6\u53d1\u9001\u5230\u6536\u4ef6\u4eba\u90ae\u7bb1\u4e4b\u524d\u5bf9\u5176\u8fdb\u884c\u68c0\u67e5\u3002\u53cd\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u5668\u5efa\u7acb\u5728 \u201c\u5206\u914d\u4fe1\u4efb \u201d\u7684\u57fa\u7840\u4e0a\u3002\u5982\u679c\u6709\u53ef\u7591\u4e4b\u5904\uff0c\u5b83\u4eec\u5c31\u4f1a\u964d\u4f4e\u60a8\u7684\u4fe1\u4efb\u5ea6\uff0c\u5982\u679c\u4fe1\u4efb\u5ea6\u964d\u4f4e\u5230\u4e00\u5b9a\u7a0b\u5ea6\uff0c\u60a8\u7684\u4fe1\u4ef6\u5c31\u4f1a\u88ab\u6c38\u8fdc\u6e6e\u6ca1\u3002.<\/p>\n
\u4ee5\u4e0b\u662f\u60a8\u5728\u542f\u52a8\u81ea\u5df1\u7684\u5916\u53d1\u90ae\u4ef6 SMTP \u670d\u52a1\u5668\u65f6\uff0c\u6216\u5728\u51c6\u5907\u6279\u91cf\u53d1\u9001\u90ae\u4ef6\u65f6\u5fc5\u987b\u505a\u7684\u4e8b\u60c5\uff1a<\/p>\n
* \u83b7\u53d6\u81ea\u5df1\u7684\u9759\u6001 IP \u5730\u5740<\/p>\n
* \u914d\u7f6e\u6b63\u5411\u548c\u53cd\u5411 DNS \u89e3\u6790<\/p>\n
* \u68c0\u67e5\u9ed1\u540d\u5355<\/p>\n
* \u914d\u7f6e SPF<\/p>\n
* \u914d\u7f6e\u57df\u5bc6\u94a5\uff08\u53ef\u9009\uff09<\/p>\n
\u4e5f\u8bb8\u8fd9\u4e9b\u9879\u76ee\u5bf9\u4f60\u6765\u8bf4\u6709\u70b9\u964c\u751f\uff0c\u4f46\u4e8b\u5b9e\u4e0a\uff0c\u5b83\u4eec\u975e\u5e38\u7b80\u5355\uff0c\u73b0\u5728\u6211\u4eec\u5c31\u6765\u5206\u6790\u4e00\u4e0b\u3002.<\/p>\n
\u83b7\u53d6\u81ea\u5df1\u7684\u9759\u6001 IP<\/b><\/p>\n
\u5927\u591a\u6570\uff08\u5982\u679c\u4e0d\u662f\u5168\u90e8\u7684\u8bdd\uff09\u666e\u901a\u4e92\u8054\u7f51\u63d0\u4f9b\u5546\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u90fd\u4e0d\u4f1a\u7ed9\u4f60\u5206\u914d\u8fd9\u4e2a\u5730\u5740\u3002\u901a\u5e38\u4f1a\u5206\u914d\u7ed9\u4f60\u4e00\u4e2a\u6d6e\u52a8\uff08\u52a8\u6001\uff09IP \u5730\u5740\uff0c\u6bcf\u6b21\u8fde\u63a5\u4e92\u8054\u7f51\u65f6\uff0c\u8fd9\u4e2a IP \u5730\u5740\u90fd\u4f1a\u53d1\u751f\u53d8\u5316\u3002\u8fd9\u5c31\u50cf\u5c04\u51fb\u4e00\u4e2a\u79fb\u52a8\u7684\u76ee\u6807\uff0c\u5982\u679c\u4f60\u7684\u8fde\u63a5\u6765\u81ea\u8fd9\u6837\u4e00\u4e2a\u52a8\u6001 IP\uff0c\u5927\u591a\u6570\u7535\u5b50\u90ae\u4ef6\u670d\u52a1\u5668\u90fd\u4f1a\u963b\u6b62\u4f60\u3002\u56e0\u6b64\uff0c\u5f53\u52a1\u4e4b\u6025\u662f\u6253\u7535\u8bdd\u7ed9\u4f60\u7684\u670d\u52a1\u63d0\u4f9b\u5546\uff0c\u4ece\u4ed6\u4eec\u90a3\u91cc\u83b7\u5f97\u4e00\u4e2a\u9759\u6001 IP\u3002.<\/p>\n
\u6b63\u5411\u548c\u53cd\u5411 DNS \u89e3\u6790<\/b><\/p>\n
\u672c\u5730\u5916\u53d1\u90ae\u4ef6 SMTP \u670d\u52a1\u5668\u7684\u53e6\u4e00\u9879\u5fc5\u987b\u9075\u5b88\u7684\u89c4\u5219\u662f\u914d\u7f6e\u6b63\u5411\u548c\u53cd\u5411 DNS \u89e3\u6790\u3002\u5f53\u5ba2\u6237\u7aef\u67e5\u8be2\u540d\u79f0\u670d\u52a1\u5668\u4ee5\u83b7\u53d6\u8981\u5efa\u7acb\u8fde\u63a5\u7684 IP \u5730\u5740\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f DNS \u89e3\u6790\u3002\u5982\u679c\u672c\u5730\u57df\u4e2d\u7684\u540d\u79f0\u670d\u52a1\u5668\u65e0\u6cd5\u89e3\u6790\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff0c\u5b83\u5c31\u4f1a\u67e5\u8be2\u7236\u670d\u52a1\u5668\uff0c\u4ee5\u627e\u5230\u53ef\u4ee5\u89e3\u6790\u7684\u670d\u52a1\u5668\u3002.<\/p>\n
\u5b83\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u79cd\u8ba4\u8bc1\u5f62\u5f0f\uff0c\u663e\u793a\u57df\u540d\u6240\u6709\u8005\u4e0e\u5c5e\u4e8e\u7535\u5b50\u90ae\u4ef6 SMTP \u670d\u52a1\u5668\u7684 IP \u5730\u5740\u6240\u6709\u8005\u4e4b\u95f4\u7684\u6709\u6548\u5173\u7cfb\u3002\u8fd9\u79cd\u9a8c\u8bc1\u4f1a\u5927\u5927\u63d0\u9ad8\u60a8\u7684\u4fe1\u4efb\u5ea6\u3002.<\/p>\n
\u8fd9\u53ea\u662f\u4e00\u79cd\u989d\u5916\u7684\u65b9\u6cd5\uff0c\u5982\u679c\u4f60\u53d8\u574f\u5e76\u5f00\u59cb\u53d1\u9001\u5783\u573e\u90ae\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f60\u7684\u57df\u540d\u627e\u5230\u4f60\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u5783\u573e\u90ae\u4ef6\u53d1\u9001\u8005\u548c\u7f51\u7edc\u9493\u9c7c\u8005\u65e0\u6cd5\u901a\u8fc7\u8fd9\u4e00\u9014\u5f84\uff0c\u56e0\u4e3a\u4ed6\u4eec\u4e0d\u60f3\u5411\u4efb\u4f55\u4eba\u663e\u793a\u81ea\u5df1\u7684\u771f\u5b9e\u59d3\u540d--\u4ed6\u4eec\u559c\u6b22\u4f7f\u7528\u76d7\u7528\u6216\u52ab\u6301\u7684\u57df\u540d\u548c IP \u5730\u5740\u3002\u5982\u679c\u6ca1\u6709\u67d0\u79cd\u5f62\u5f0f\u7684\u8eab\u4efd\u8bc1\u660e\uff08\u5982\u4fe1\u7528\u5361\uff09\uff0c\u4efb\u4f55\u4f9b\u5e94\u5546\u90fd\u4e0d\u4f1a\u540c\u610f\u6ce8\u518c\u57df\u540d\u3002.<\/p>\n
\u6b63\u5411\u548c\u53cd\u5411 DNS \u89e3\u6790\u501f\u52a9\u6240\u8c13\u7684 A \u548c PTR \u8bb0\u5f55\u8fdb\u884c\u3002\u4e0d\u8981\u5fd8\u8bb0\u5728 DNS \u4e2d\u6dfb\u52a0\u8fd9\u4e9b\u8bb0\u5f55\uff0c\u5b83\u4eec\u7528\u4e8e\u6267\u884c DNS \u67e5\u8be2\u3002\u6b64\u5916\uff0c\u5b83\u4eec\u8fd8\u6709\u52a9\u4e8e\u60a8\u5728\u4e92\u8054\u7f51\u4e0a\u516c\u5f00\u5de5\u4f5c\u3002\u60a8\u53ef\u4ee5\u8981\u6c42\u60a8\u7684\u670d\u52a1\u63d0\u4f9b\u5546\u6216\u57df\u540d\u6ce8\u518c\u5546\u8fd9\u6837\u505a\u3002\u56e0\u6b64\uff0c\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u5668\u548c\u4e0d\u540c\u7684\u670d\u52a1\u5668\u4f1a\u66f4\u4fe1\u4efb\u60a8\u3002.<\/p>\n
\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u60a8\u5728 DNS \u4e2d\u8bbe\u7f6e\u4e86\u57df\u540d\u7684 \u201cA \u8bb0\u5f55\u201d\uff0c\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u60a8\u7684\u7f51\u7edc\u63d0\u4f9b\u5546\u81ea\u52a8\u914d\u7f6e\u4e86 PTR \u8bb0\u5f55\u3002\u81f3\u5c11\u8981\u786e\u4fdd\u4e0e\u4ed6\u4eec\u8fdb\u884c\u4e86\u6838\u5bf9\uff0c\u56e0\u4e3a\u4ed6\u4eec\u6709\u65f6\u4f1a\u6dfb\u52a0\uff0c\u6709\u65f6\u4e0d\u4f1a\u3002.<\/p>\n
\u9ed1\u8272 - \u5217\u8868<\/b><\/p>\n
DNS \u9ed1\u540d\u5355\uff08\u6216 DNS \u5c01\u9501\u540d\u5355\uff09\u53ef\u901a\u8fc7 DNS \u67e5\u8be2\u8bbf\u95ee\u3002\u5b83\u4eec\u662f\u5b58\u50a8\u5728\u8fdc\u7a0b\u6570\u636e\u5e93\u4e2d\u7684 IP \u5730\u5740\u5217\u8868\u3002\u5b83\u4eec\u7528\u4e8e\u963b\u6b62\u53d1\u9001\u5783\u573e\u90ae\u4ef6\u7684 IP \u5730\u5740\u3002\u90ae\u4ef6\u670d\u52a1\u5668\u5c06\u68c0\u67e5\u63a5\u6536\u90ae\u4ef6\u7684\u5ba2\u6237\u7aef IP \u5730\u5740\u662f\u5426\u5b58\u5728\uff0c\u5728\u5f97\u5230\u80af\u5b9a\u7b54\u590d\u540e\uff0c\u88ab\u68c0\u6d4b\u4e3a\u5783\u573e\u90ae\u4ef6\u7684\u90ae\u4ef6\u5c06\u88ab\u963b\u6b62\u3002.<\/p>\n
\u627e\u51fa\u5931\u8d25\u539f\u56e0\u540e\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u9ed1\u540d\u5355\u7f51\u7ad9\u8fdb\u884c\u68c0\u67e5\u3002\u6216\u8005\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528\u624b\u52a8\u65b9\u6cd5\u5c06\u60a8\u7684 IP \u4ece\u5217\u8868\u4e2d\u79fb\u9664\uff08\u5927\u591a\u6570\u7f51\u7ad9\u90fd\u6709\u8fd9\u79cd\u65b9\u6cd5\uff09\u3002<\/p>\n
SPF<\/b><\/p>\n
SPF \u5e76\u975e\u60a8\u60f3\u8c61\u4e2d\u7684 \u201c\u9632\u6652\u7cfb\u6570\u201d\u3002SPF \u662f\u4e0b\u4e00\u4e2a\u6709\u7528\u4f46\u53ef\u9009\u7684 DNS \u8bb0\u5f55\u3002\u5b83\u663e\u793a\u6709\u6743\u4e3a\u7279\u5b9a\u57df\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u7684\u4e3b\u673a\u3002SPF \u6709\u52a9\u4e8e\u9a8c\u8bc1\u53d1\u4ef6\u4eba\u7684\u6e90 IP \u662f\u5426\u5141\u8bb8\u4e3a\u8be5\u57df\u4f20\u8f93\u90ae\u4ef6\u3002\u5982\u679c\u60a8\u4ece\u4e0e\u6307\u5b9a IP \u4e0d\u540c\u7684 IP \u53d1\u9001\u7535\u5b50\u90ae\u4ef6\uff0c\u670d\u52a1\u5668\u53ef\u80fd\u4f1a\u62d2\u7edd\u60a8\u7684\u7535\u5b50\u90ae\u4ef6\u6216\u5c06\u5176\u6807\u8bb0\u4e3a\u5783\u573e\u90ae\u4ef6\u3002.<\/p>\n
SPF \u8bb0\u5f55\u5c06\u5e2e\u52a9\u60a8\u5411\u63a5\u6536\u670d\u52a1\u5668\u8868\u660e\u60a8\u7684\u826f\u597d\u610f\u613f\u3002\u5982\u679c\u60a8\u60f3\u4f7f\u7528\u8fd9\u79cd DNS \u8bb0\u5f55\uff0c\u53ef\u4ee5\u8bbf\u95ee\u4e86\u89e3 SPF \u6240\u6709\u4fe1\u606f\u7684\u7f51\u7ad9 - openspf.org\u3002\u7136\u540e\u8bf7\u60a8\u7684\u57df\u540d\u6ce8\u518c\u5546\u5e2e\u52a9\u60a8\u8bbe\u7f6e SPF\u3002\u6709\u4e9b\u6ce8\u518c\u5546\u7684\u914d\u7f6e\u9762\u677f\u4e0a\u6709\u4e13\u95e8\u7684\u5411\u5bfc\u3002\u5b83\u4eec\u53ef\u4ee5\u5e2e\u52a9\u60a8\u81ea\u52a8\u8bbe\u7f6e SPF\u3002.<\/p>\n
\u57df\u5bc6\u94a5\uff08\u53ef\u9009\uff09<\/b><\/p>\n
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\u5982\u60a8\u6240\u89c1\uff0c\u57df\u540d\u5bc6\u94a5\u672c\u8eab\u5e76\u4e0d\u80fd\u8fc7\u6ee4\u5783\u573e\u90ae\u4ef6\uff0c\u4f46\u5982\u679c\u60a8\u663e\u793a\u4e86\u6b63\u786e\u7684\u57df\u540d\uff0c\u8fc7\u6ee4\u673a\u5236\u5c31\u80fd\u66f4\u6709\u6548\u5730\u5de5\u4f5c\u3002\u56e0\u6b64\uff0c\u5b83\u4eec\u4e0d\u4f1a\u5c06\u60a8\u6807\u8bb0\u4e3a\u5783\u573e\u90ae\u4ef6\u53d1\u9001\u8005\u3002.<\/p>\n
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