Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Tue, 23 Sep 2008 13:04:47 +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]
    mailbox is full: retry timeout exceeded

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

From: =?koi8-r?B?89fF1MzBzsE=?= <[email-masked]>
To: <[email-masked]>
Subject: =?koi8-r?B?UmU6IO7B3sHM2M7B0SDJzsbP0s3Bw8nRIM8g7fPm7w==?=
Date: Tue, 23 Sep 2008 15:34:44 +0530