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re:手工测试c:\>nslookup...
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手工测试<br>
c:\>nslookup<br>
Default Server: fj_dns.test0.cn<br>
Address: 218.85.157.99<br>
<br>
> set type=mx<br>
> ccc.com<br>
Server: fj_dns.test0.cn<br>
Address: 218.85.157.99<br>
<br>
Non-authoritative answer:<br>
ccc.com MX preference = 100, mail exchanger = echo.ccc.com<br>
ccc.com MX preference = 10, mail exchanger = maxwell.ibp.com<br>
<br>
ccc.com nameserver = bigjob.bicnet.net<br>
ccc.com nameserver = namesrv.mdc.net<br>
ccc.com nameserver = echo.ccc.com<br>
maxwell.ibp.com internet address = 66.207.133.141<br>
echo.ccc.com internet address = 198.137.187.6<br>
bigjob.bicnet.net internet address = 209.251.64.254<br>
namesrv.mdc.net internet address = 209.251.64.251<br>
<br>
即可知道ccc.com有2个smtp接收服务器, 主服务器是maxwell.ibp.com, IP是66.207.133.141 |
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