Subject: Undeliverable mail: Вы как раз искали этот семинар

From: <[email-masked]>
Date: Wed, 15 Oct 2008 03:09:10 +0400

Failed to deliver to [email-masked]'
SMTP module(domain [194.116.250.18]) reports:
 host 194.116.250.18 says:
 550 5.1.1 <[email-masked]>... User unknown