Subject: Undeliverable mail: По запросу от учебного центра

From: <[email-masked]>
Date: Thu, 09 Oct 2008 01:34:11 +0600

Failed to deliver to [email-masked]'
SMTP module(domain [10.12.4.83]) reports:
 host 10.12.4.83 says:
 550 <[email-masked]>, Recipient unknown