http://cbl.abuseat.org/ -- heard of them before ?
I cant work out why they have listed one of my home IP's on their suppression list. The reasons they mention for a listing are :
1. viruses, spyware, adware, open proxies and trojans
2. dynamic ip : so someone else might have been having fun
3. mail server running on Microsoft Windows or is running proxy services
And I can quite assure you that none of the above are valid in my case. So I wonder, what is it that made them list my IP ? Have sent them an email, lets see if they reply. All in all, going by their setup and info they provide - cbl seems to be a very shoddy service, if you are an admin running mail services, and use cbl, wake up - drop their service. It seems worthless, you _ARE_ loosing valid emails.
--
Karanbir Singh { http://www.karan.org/ }
Probably the person using the IP before you was infected with some kind of worm or running an open proxy. CBL doesn't disclose much - but part of that may be that they're trying to keep the attack vector for spammers as small as possible. I've had a look at their RBL file (at least that is publicly disclosed). There are no /24 netblocks etc. in there, just single IPs (~ 2 Million). Comparing the file within two hours showed that ~30k IPs expired from the list, while 60k new IPs were added.
I've had this IP subnet for over a year now - CBL must be really brain dead to list this IP now, if someone else who had this IP before me was infected with a worm or something.
Does base.karan.org belong to you ? If it does then that explains why. This IP is being used to route phishing emails to people. Please secure the ports of the CentOS webserver running on it. 
Everthing is fine, but can i find anywhere that what is the orginal cause that CBL listing my IP again & again. My IP is fully safe & no Viruses & Torjans & etc. are there on my server...
Has anyone ever received a response from an email sent to CBL? They say they never block e mails and provide an address, but after sending 2 e mails and waiting a month for a reply, I am still no wiser as to why I have been blacklisted. 
Suddenly all my emails to friends etc are being returne as undeliverable and the reason given is that the recipient addresses are blacklisted. Who are these people at cbl.abuseat.org? How do I get rid of them and continue emailing as normal? 
I am still trying to find out who or what CBL is, who set them up and under what remit they operate. I get the impression that they are walking fine edge of laws on privacy and tampering with otehr peoples mail and/or communicatiosn without any authority. Does any know?????? 
I'm from the Netherlands and I just got blacklisted on my business mail. Strange thing is that we work with 1200 people and only 5 of them got blacklisted, we all work through the same mailserver. 
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