The original message was received at Tue, 4 Apr 2006 14:32:35 +0200 from linux.cz [84.216.3.146] ----- The following addresses had permanent fatal errors ----- databases na linux.cz ----- Transcript of session follows ----- ... while talking to 207.57.52.208: 550 5.1.2 <databases na linux.cz>... Host unknown (Name server: host not found)