The domain of the little-used SpamCannibal DNS blacklist had expired, resulting in it effectively listing every single IP address.
Read more on Virus Bulletin’s blog.
Tag: dnsbl
Though IPv6 is gradually replacing IPv4 on the Internet’s network layer, email is lagging behind, the difficulty in blocking spam sent over IPv6 cited as a reason not to move. But would we really have such a hard time blocking spam sent over IPv6?
Read more on Virus Bulletin’s blog.