Anonymous Postmaster Early Warning System
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The Anonymous Postmaster Early Warning System (APEWS) is an anonymous service that maintains a list of IP address ranges (L2 list) and domain names (L1 list) belonging to internet service providers (ISPs) that the anonymous maintainers claim to be hosting spammers or failing to prevent their abuse of other networks' resources.
According to the only public forum communication ever released by APEWS, the service was founded by people who observed that the Spam Prevention Early Warning System (SPEWS) was inactive, no longer maintained, and possibly dead. The maintainers chose to copy the look and feel of the SPEWS site, and like SPEWS, the APEWS list follows no discernible escalation policy, and provides no documentary evidence to justify its listings. Unlike SPEWS, APEWS operates two blacklists:
- L1 - a Right-Hand Side Blacklist (RHSBL) that lists domains
- L2 - a Domain Name System Blacklist (DNSBL) that lists IP address ranges.
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