Subject: Undeliverable mail: Анализ безубыточности производства

From: <[email-masked]>
Date: Fri, 22 Aug 2008 17:59:42 +1100

Failed to deliver to [email-masked]'
SMTP module(domain jc.broadband.redcom.ru) reports:
 host jc.broadband.redcom.ru says:
 550 5.1.1 User unknown