The original message was received at Fri, 28 Jul 2006 08:55:39 +0200 from linux.cz [95.108.78.87] ----- The following addresses had permanent fatal errors ----- <databases na linux.cz> ----- Transcript of the session follows ----- ... while talking to 158.82.32.144: 550 5.1.2 <databases na linux.cz>... Host unknown (Name server: host not found)