The original message was received at Thu, 1 Jun 2006 09:45:43 +0200 from linux.cz [123.19.41.60] ----- The following addresses had permanent fatal errors ----- databases na linux.cz ----- Transcript of the session follows ----- ... while talking to linux.cz.: 550 5.1.2 <databases na linux.cz>... Host unknown (Name server: host not found)