Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Wed, 24 Sep 2008 18:28:19 +0400

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  [email-masked]
    SMTP error from remote mail server after RCPT TO:<[email-masked]>:
    host mailer.printhouse.ru [212.69.122.150]: 550 5.1.1 <[email-masked]>... User unknown

------ This is a copy of the message's headers. ------

Date:	Wed, 24 Sep 2008 22:24:11 +0800
From:	=?koi8-r?B?zs/X2cog0M/EyM/E?= 
	<[email-masked]>
Reply-To: [email-masked]
To: [email-masked]
Subject: =?koi8-r?B?/NTPINTP1CDV3sXCztnKIMvV0tM=?=