RE: Another DNS blacklist is taken down

[Justin Shore <listuser () numbnuts net>]

On Wed, 24 Sep 2003, Joel Perez wrote:

> Great,
> Just Great. Wasn't there a post a while back that listed what providers
> are SPAM friendly? My fingers are getting tired trying to create ACL's
> lists to block ranges of IP's without compromising my service. I wish
> the power's up above would buy the right software to try and curb the
> SPAM but that is not to be according to them. 
>
> So back to my ACL's I go!

This is one of the most likely things to happen.  DNS RBLs are effective.  
Otherwise spammers wouldn't be targeting them for abuse.  Mail admins will
eventually start running their own RBLs or rejecting mail by other means
locally.  This distributed method creates hundreds and eventually
thousands of separate points of contact for getting yourself off a RBL.  
I ran my own domain and netblock list in the past and I can say from
experience that it is a very time consuming process.  At the time it was
also extremely effective.  I didn't list open relays/proxies/formmail.cgi 
IPs.  I did however list spamming domains and providers.  It caught a 
surprising amount of spam.  It also left me with little time to do 
anything else.  There's got to be a better way.

Justin