The original message was received at Mon, 24 Dec 2018 19:45:21 +0800 from lists.jboss.org [170.234.174.38] ----- The following addresses had permanent fatal errors ----- <infinispan-dev(a)lists.jboss.org&gt; ----- Transcript of session follows ----- while talking to lists.jboss.org.: <<< 501 "MAILER-DAEMON" <postmaster@lists.jboss.org>... Refused