New: Blacklist Statistics Center

Please take a moment to check out the new DNSBL Resource Blacklist Statistics Center. Replacing the old DNSBL stats page, this new section of DNSBL Resource provides week-by-week graphs for twenty different blacklists. At a glance, one can easily see the accuracy rates and false positive rates for the past thirteen weeks for any blacklist in the system. This data will be refreshed weekly, automatically, and new blacklists can be added easily.

Please don't hesitate to drop me a line with your feedback on this new functionality.

In the future, look for a more detailed index page for the statistics center, one that will show information on mail-in-progress.

Additionally, work is under way to add “second stage” filtering and URIBL-style blacklists to the statistics center. Stay tuned!

Status of completewhois.com: IN FLUX

Update 9/30/2007: The website www.completewhois.com is operational again, but some links appear to be broken. My attempts to query their DNSBLs have all timed out. While CompleteWhois may be on the mend, it seems that it may be too soon to give the all clear.

Previous updates follow.

APEWS: Doing the Math

I'm guilty. I admit it. I've called APEWS listings "random," which isn't quite right. Arbitrary would be a better word for it. Not to mention broad, and questionable.

APEWS, the "anonymous" blacklist meant to be an early warning system for spam, generates a lot of worry from administrators and end users who find themselves listed by way of plugging their IP address into an online lookup tools like DNSStuff. Though it doesn't result in much (if any) of anyone's mail being rejected, as it's not widely used, some people still think they're being labeled a spammer, and don't know what to do about it.