clients unconrollable spam?

I'm suspicious about one client who appears about 100 times in the mail queue, but what appears to be incoming spam.

Example:

1FXDnV-00009X-PT-H
root 0 0
<decklin@wongnothostedhere.com>
1145695737 0
-helo_name 142908896
-host_address xx.242.18.223.3258
-interface_address xxx.212.68.241.25
-received_protocol smtp
-body_linecount 77
XX
1
lars@clientdomainhosted.com

184P Received: from [xx.242.18.223] (helo=142908896)
by server.hostdomain.com with smtp (Exim 4.52)
id 1FXDnV-00009X-PT
for lars@clientdomainhosted.com; Sat, 22 Apr 2006 03:48:58 -0500
186P Received: from wongnothostedhere.com (140097456 [143529288])
by sev93-4-82-242-18-223.fbx.proxad.net (Qmailv1) with ESMTP id 949C707392
for <lars@clientdomainhosted.com>; Sat, 22 Apr 2006 04:48:41 -0400
038 Date: Sat, 22 Apr 2006 04:48:41 -0400
055F From: "Hottentot A. Pleasantly" <decklin@wongnothostedhere.com>
038 X-Mailer: The Bat! (v2.00.3) Personal
014 X-Priority: 3
053I Message-ID: <0944119488.20060422044841@wongnothostedhere.com>
029T To: Lars <lars@clientdomainhosted.com>
045 Subject: The Ultimate Online Pharmaceuticals
018 MIME-Version: 1.0
075 Content-Type: multipart/alternative;
boundary="----------FF4FCCD981B1759"
054 X-AntiVirus: Checked by Dr.Web (http://www.drweb.net)


This is clearly incoming spam if I'm not mistaken. However, what should I do to stop this? Its causing a pretty high exim load. I cannot really tell the client to use spam assassin (if I'm right on this, that would still cause a high load either way).

Recommendations?

 

 

 

 

Top