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新装的exchange 2007服务器,开启了“IP Block List Providers”,引用了Anti-Spam的cblless.anti-spam.org.cn,还有Spamhaus的sbl.spamhaus.org,
最近一直说被我们服务器退信,说对方IP地址在黑名单内,退信如下:
Remote host said: 550 5.7.1 Recipient not authorized, your IP has been found
on a block list
但是很奇怪,我查了几个退信的SMTP的IP都不在上述2个黑名单内,求大虾们指点迷津。 |
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