Spam Cannibal blacklist is dead

Multiple folks reached out to me overnight to let me know that the SpamCannibal DNSBL has blown up, that they have effectively "listed the world," resulting in mail admins blocking all mail if they use this DNSBL in their mail server configuration. I talked to the operator of the list, who let me know that Spam Cannibal is permanently shut down and that the domain must have expired. More over on DNSBL.com.

May 31, 2018 update: The operator of Spam Cannibal is working with some smart folks to shut down the blacklist in perhaps a more graceful fashion. The list is no longer being updated and is retired; you should still remove it from your mail server configuration.

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