In addition to Roaring Penguin's IPv4 based reputation list, in 2010 we announced the availability of our IPv6 based reputation list.
Access to the CanIt Reputation List (CanIt-RL) is included free with the following Roaring Penguin Products:
We do not sell access to the lists separately from CanIt.
Q: How are the lists compiled?
A: The lists are compiled from real-time reports submitted by a worldwide network of sensors to Roaring Penguin's servers. The lists are updated hourly.
Q: Why a Good List?
A: Knowing that a machine has a good reputation is just as valuable as knowing that it has a bad reputation. Giving machines on the Good List a modest boost through filtering can help good mail get through and avoid false positives.
Q: How long does a machine stay on the list?
A: Since the lists are compiled automatically, a machine stays on the list until its behaviour changes. When we compile the lists, we use a 45-day window of event data, so it may take several days or even a few weeks for a behaviour change to be effective enough to change a machine's reputation.
Q: What are the criteria for listing?
A: We do not list any IP address until we have seen at least ten reports for it. Once we reach that threshold, we apply the following criteria:
Note that listing is completely automatic. There is no human intervention on the part of Roaring Penguin personnel.
Q: How do you delist a machine?
A: To delist a machine, you need to change the behaviour that caused the machine to be listed in the first place. Eventually, the machine will be delisted. For urgent delisting requests, or if you think your machine has been listed by mistake please contact Roaring Penguin at email@example.com. Please provide your:
Q: How Can I check if my Host Name is on the CanIt Reputation list?
A: To check and see if your Domain or IP Address is on the CanIt Reputation list click here.
Roaring Penguin takes all false positives very seriously and tries to have them removed from CanIt-BL as quickly as possible. Please provide as much detail as you can in the reason for removal section of your submission. Please understand that this is a manual process. Allow at least 24 hours for investigation and processing of your submission.