Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Tue, 23 Sep 2008 06:33:19 +0300

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 yota.pastsargs.lv [80.81.35.10]: 550 5.1.1 <[email-masked]>... User unknown

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

From: =?koi8-r?B?zs/X2cog0M/EyM/E?= 
	<[email-masked]>
To: <[email-masked]>
Subject: =?koi8-r?B?5M/LLc7JxSDz7esg0M8gSVNPIDkwMDE6MjAwMA==?=
Date: Tue, 23 Sep 2008 11:33:17 +0800