The original message was received at Wed, 25 Mar 2009 12:46:30 -0400 from 168.180.29.206 ----- The following addresses had permanent fatal errors ----- <hibernate-commits(a)lists.jboss.org&gt; ----- Transcript of the session follows ----- ... while talking to 219.73.69.200: 550 5.1.2 <hibernate-commits@lists.jboss.org>... Host unknown (Name server: host not found)