主机IP被SBLXBL收录，有些邮件发不出去

42.96.166.XX is listed in the SBL , in the following records:

• SBL189388

Ref: SBL189388
42.96.128.0/17 is listed on the Spamhaus Block List - SBL

2013-10-21 11:59:17 GMT | alibaba-inc.com

Spammer hosting (escalation)

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ATTENTION: Do not contact Spamhaus about this issue unless you are a

security representative of Alibaba . All other removal requests will be IGNORED!

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• CBL(以下为内容)
• 
  IP Address 42.96.166.xx is listed in the CBL. It appears to be infected with a spam sending trojan, proxy or some other form of botnet.
  It was last detected at 2013-10-24 08:00 GMT ( /- 30 minutes), approximately 5 hours, 30 minutes ago.
  This IP is infected (or NATting for a computer that is infected) with a spam-sending infection. In other words, it's participating in a botnet. If you simply remove the listing without ensuring that the infection is removed (or the NAT secured), it will probably relist again.
  
  
  
  
  我自己建的邮件服务器都是正常的邮件联系，至于代理，则是由于本人是教育网，所以基本的外文网站也上不去啊。
  这个怎么办？？？