Please see http://rfc-ignorant.org/endofanera.php for details.
While I never personally used their services, or found any real value, thanks to RFC-Ignorant for their services over the years.
Users of modern MDaemon releases don’t need to modify SpamAssassin, just ensure that your spam filter updates are enabled and the rules will automatically be disabled as needed.
rfc-ignorant.org ceasing operation – Remove from your configuration by Dave Warren (everything-mdaemon.com) is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.