failure notice

[MAILER-DAEMON@xxxxxxxxxxxxxxxxxxxxxxxx]

Hi. This is the qmail-send program at mail913.opentransfer.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<ramesh.revuru@xxxxxxxxxxxxxxxxxx>:
216.82.241.99 failed after I sent the message.
Remote host said: 553-Message filtered. Please see the FAQs section on spam
553-at http://www.messagelabs.com/support/ for more
553 information. (#5.7.1)

--- Enclosed are the original headers of the message.

--- Begin Message ---

To:	ramesh.revuru@xxxxxxxxxxxxxxxxxx
Subject:	Returned mail: Data format error
From:	kdb@xxxxxxxxxxx
Date:	Thu, 20 Jan 2011 10:34:25 +0530

<<< multipart/mixed; boundary="----=_NextPart_000_0012_44785FE6.3ABB382B": Unrecognized >>>

--- End Message ---