The block message is 521 DNSRBL: Blocked for abuse

Tammy Firefly tammy-lists at
Wed Sep 18 22:55:28 UTC 2013

On 9/18/13 4:46 PM, Andrew D Kirch wrote:
> On 9/18/2013 6:41 PM, Timothy Metzinger wrote:
>> Here's a thought.  Would it be possible to set up a process where
>> ARIN, as
>> part of reselling IP addresses, either issues a certificate of
>> transfer that
>> the new owner can use to prove to the ISPs that he's a new owner and
>> not the
>> old evil spammer, or ARIN publishes a list of IP assignments that can be
>> used by ISPs to provisionally remove them from blocked lists?
>> I sympathize with the original poster, it's sort of like buying a used
>> car,
>> only to find out the previous owner was the drunk driver who ran over
>> your
>> next door neighbor's dog.
> I used to run the AHBL and ARIN used to contact us when they recycled IP
> space.  We always removed when contacted by ARIN.
> Andrew

ARIN hasnt contacted us for this since i've been involved with the ahbl
for ~5 years.
just a FYI.

More information about the NANOG mailing list