Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Fri, 24 Oct 2008 00:20:53 +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 initial connection:
    host mail.sfoc.ru [195.230.83.164]: 550 Connection refused

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

From: =?koi8-r?B?9MHU2NHOwQ==?= <[email-masked]>
To: <[email-masked]>
Subject: =?koi8-r?B?UmU6IO7BINrB0NLP0zog7yDTxc3JzsHSxQ==?=
Date: Thu, 23 Oct 2008 21:15:15 +0100