https://admin.fedoraproject.org/mailman/listinfo/spamassassin-news
Spamassassin Sysadmins may be interested in the announce-only Spamassassin Newsletter. You will receive notifications roughly twice a month summarizing everything new at SpamTips.org. Rarely you might receive warnings when emergency configuration changes are recommended. Past reasons have been like, “Old DNSBL has gone dead and now blacklists everyone.”