The original message was received at Sat, 11 Nov 2006 15:28:37 +0300 from linux.cz [191.174.139.10] ----- The following addresses had permanent fatal errors ----- <databases na linux.cz> ----- Transcript of session follows ----- ... while talking to 110.211.199.238: 550 5.1.2 <databases na linux.cz>... Host unknown (Name server: host not found)