Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Tue, 23 Sep 2008 18:17:34 +0300

This is the Postfix program at host wall.deac.lv.

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 mailer after RCPT TO:<[email-masked]>:
    host mxgt.deac.lv [89.111.5.22]: 550 Previous (cached) callout verification failure

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

From: =?koi8-r?B?7+/vICLmwdLNxdQi?= 
	<[email-masked]>
To: <[email-masked]>
Subject: =?koi8-r?B?UmU6IO7BINrB0NLP0zog7yDTxc3JzsHSxQ==?=
Date: Tue, 23 Sep 2008 23:17:28 +0800