The block message is 521 DNSRBL: Blocked for abuse

[tmetzinger at verizon.net (Timothy Metzinger)]

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.