The original message was received at Fri, 9 Feb 2007 13:27:29 +0100 from 72.67.248.98 ----- The following addresses had permanent fatal errors ----- sendmail na linux.cz ----- Transcript of session follows ----- ... while talking to server 188.184.156.165: 550 5.1.2 <sendmail na linux.cz>... Host unknown (Name server: host not found)