Undelivered Mail Returned to Sender

[MAILER-DAEMON@xxxxxxx (Mail Delivery System)]

This is the Postfix program at host relay.ogk3.ru.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                        The Postfix program

<litvinenkoia@xxxxxxx>: host 172.23.1.16[172.23.1.16] said: 550 5.1.1 User
    unknown (in reply to RCPT TO command)

Reporting-MTA: dns; relay.ogk3.ru
X-Postfix-Queue-ID: 84EDA2F859F
X-Postfix-Sender: rfc822; kernprof@oss.sgi.com
Arrival-Date: Sun, 20 Apr 2008 11:02:02 +0400 (MSD)

Final-Recipient: rfc822; litvinenkoia@ogk3.ru
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host 172.23.1.16[172.23.1.16] said: 550 5.1.1 User
    unknown (in reply to RCPT TO command)

--- Begin Message ---

To:	<litvinenkoia@xxxxxxx>
Subject:	[SPAM] продажа баз адресов
From:	Наум Робертович <kernprof@xxxxxxxxxxx>
Date:	Sun, 20 Apr 2008 05:14:22 +0000

продажа баз мейлов
Базы адресов сбор
Стоимость и количество по ICQ 385 l l l l l l

--- End Message ---