[CentOS] Messages are bouncing

[Kai Schaetzl]

Rodrigo Barbosa wrote on Tue, 22 Aug 2006 13:45:13 -0300:

> That's only the tip of the iceberg, so to speak. From that 122 RBLs 
> I mentioned, I actually only use 3 regularly, and another 2 in some 
> specially sensitive servers: 
>  
> sbl-xbl.spamhaus.org 
> relays.ordb.org 
> dnsbl.njabl.org 

I use two of these as well, and in the same order, but I found ordb.org 
too ineffective when I tested several RBLs some years ago. My "second" RBL 
is safe.sorbs.net.

> bl.spamcop.net 

too agressive in my eyes, but certainly effective.

>  
> Even my best servers will still show listed on 5 or 6 RBLs. Usually 
> those same 6 above.

That doesn't surprise me, 5 of them are not on DNS and the first domain 
belongs to a domain grabber it seems. What RBL lookup do you use? It seems 
to be unreliable. There *are* RBLs which just list *every* IP they don't 
have business with, but the above don't belong in this category, they are 
just dead.
I recommend using this one:
http://www.dnsstuff.com/tools/ip4r.ch?ip=

Kai

-- 
Kai Schätzl, Berlin, Germany
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