On 13-Feb-07, at 12:57 AM, Douglas Otis wrote:
There are at least two entities to be considered with respect to a
reasonable listing duration. One might be the individual entity
administering the system directly associated with the IP address.
Another would be the entity providing the IP address and routing
from their ASN. The duration of any listing must consider the
behavior of _both_. A high density of bad actors within an ASN
SHOULD extend duration well into a year and be sure to cover a
typical contract period. The goal of the DNSBL operator is often
to alter the behavior of the network provider. In such cases it is
pointless to focus upon individual IP addresses when the network
provider is truly negligent.
Nothing in this draft prevents this.
Individual treatment of IP addresses must be predicated upon the
provider enforcing an AUP policy that precludes spamming. Any
provider that offers unlimited services to spammers should never
expect IP address delisting within an interval as short as 6
months. This is being far to generous. In the case of individual
IP addresses within a well managed ASN, a request can be made to
expedite delistings. Again, when the typical contract is by the
year, automatic delisting within six months is still likely too soon.
Nothing in this draft prevents this.
While a six month duration might be selected as a means to reduce
delisting requests, a poorly managed ASN should still delay a
delisting over a much longer period. Incidents of abuse can not
always be considered by individual IP addresses, but in conjunction
with the ASN as a whole.
Nothing in this draft prevents this.
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