I suppose I should have guessed that ARIN would be useless. Heck, they're not even the only people passing out IPs. I suppose the real answer here is either "you blindly trust your spam service and follow their blacklist" or you don't.
I don't really think things are quite that dire but it seems that all you can do is the "brute force" approach.
In reply to Re^2: Ideas solicited: Using Perl to sort through Toxic CIDR blocks
by Anonymous Monk
in thread Ideas solicited: Using Perl to sort through Toxic CIDR blocks
by blue_cowdawg
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