The original message was received at Sat, 4 Feb 2012 03:20:48 +0400 from mm-50-164-124-178.static.mgts.by [178.124.164.50] (may be forged) ----- The following addresses had permanent fatal errors ----- <[email protected]> (reason: 550 Host unknown) ----- Transcript of session follows ----- 550 5.1.2 <[email protected]>... Host unknown (Name server: srvymail02.ygd.gazprom.ru: host not found)