Abuse complaint blocked as spam? Options

[acsi]

I have had the folllowing email come back on one of my abuse complaints

Your message to: xavier.fernandez@maxcom.com
was blocked by our Spam Firewall. The email you sent with the following subject has NOT BEEN DELIVERED:

Subject: e-mail abuse complaint

Reporting-MTA: dns; seguridad.maxcom.com
Received-From-MTA: smtp; seguridad.maxcom.com ([127.0.0.1])
Arrival-Date: Sun, 21 Aug 2005 13:39:19 -0500 (CDT)

Final-Recipient: rfc822; xavier.fernandez@maxcom.com
Action: failed
Status: 5.7.1
Diagnostic-Code: smtp; 550 5.7.1 Message content rejected, UBE, id=15548-11-2
Last-Attempt-Date: Sun, 21 Aug 2005 13:39:19 -0500 (CDT)
Received: from mxsrv1.tranzpeer.net (mxsrv1.tranzpeer.net [202.180.66.214])
by seguridad.maxcom.com (Spam Firewall) with ESMTP id 7B94C20017EF
for <xavier.fernandez@maxcom.com>; Sun, 21 Aug 2005 13:39:18 -0500 (CDT)
Received: from [203.184.12.152] (helo=[10.0.1.2])
by mxsrv1.tranzpeer.net with SMTP (Exim 4.34)
id 1E6uid-00020s-Eg; Mon, 22 Aug 2005 06:38:57 +1200
Date: Mon, 22 Aug 2005 06:39:06 +1200
Subject: e-mail abuse complaint
From: acsi<filtered by acsi>
To: xavier.fernandez@maxcom.com
CC: support@kidc.net, ip@kidc.net, security@kidc.net
Content-type: text/plain;
Content-transfer-encoding: 7bit
Message-Id: <20050821183918.7B94C20017EF@seguridad.maxcom.com>

I have a feeling I have reported before to this address but why would the person designated to receive this email bounce it as spam?