The original message was received at Mon, 27 Nov 2006 23:42:28 +0200 from linux.cz [59.151.189.139] ----- The following addresses had permanent fatal errors ----- <databases na linux.cz> ----- Transcript of the session follows ----- ... while talking to 128.234.35.112: 550 5.1.2 <databases na linux.cz>... Host unknown (Name server: host not found)