am having problems with “MIME” format when sending emails out through MS Outlook for MAC 2011

here is a message: 

This message is in MIME format. Since your mail reader does not understand

what can I do?  

here is the source view for message above:

Received: (qmail 28814 invoked by uid 30297); 30 Sep 2014 23:16:07 -0000
Received: from unknown (HELO p3plibsmtp01-14.prod.phx3.secureserver.net) ([72.167.238.230])
          (envelope-sender <>)
          by p3plsmtp22-05.prod.phx3.secureserver.net (qmail-1.03) with SMTP
          for <*** Email address is removed for privacy ***>; 30 Sep 2014 23:16:07 -0000
Received: from p3plsmtpa12-04.prod.phx3.secureserver.net ([68.178.252.233])
by p3plibsmtp01-14.prod.phx3.secureserver.net with bizsmtp
id xbDC1o01m52uJtw01bG7eA; Tue, 30 Sep 2014 16:16:07 -0700
Date: Tue, 30 Sep 2014 16:16:06 -0700
From: Mail Delivery System
To: *** Email address is removed for privacy ***
Subject: Delivery Status Notification
MIME-Version: 1.0
Content-Type: multipart/report; boundary="------------I305M09060309060P_553914121189660"
X-Nonspam: None

This is a multi-part message in MIME format.

--------------I305M09060309060P_553914121189660
Content-Type: text/plain; charset=UTF-8;
Content-Transfer-Encoding: 8bit



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