All attempts to send mail to any list @lists.fedorahosted.org is being rejected with the error:
sssd-devel@lists.fedorahosted.org: Command died with status 1: "/usr/lib/mailman/mail/mailman post sssd-devel". Command output: post script, list not found: sssd-devel
Browising to https://fedorahosted.org/mailman/admin reveals:
"Welcome!
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Something is rotten in the state of Denmark.