How can you catch spammer

I have a user send out porn(several hundred in last hour) How can I determine who it is?How can I stop him if I cannot find user?
here is a copy of email collected from WHM Mail Queue:


1AaI90-0003Qw-Ch-H
mailnull 47 12
<>
1072545750 0
-ident mailnull
-received_protocol local
-body_linecount 38
-frozen 1072545750
-localerror
XX
1
anna@huggerperformance.net

151P Received: from mailnull by srv2.xxxx.com with local (Exim 4.24)
id 1AaI90-0003Qw-Ch
for anna@huggerperformance.net; Sat, 27 Dec 2003 12:22:30 -0500
037 X-Failed-Recipients: qrewwq@sohu.com
031 Auto-Submitted: auto-generated
058F From: Mail Delivery System <Mailer-Daemon@srv2.xxxx.com>
031T To: anna@huggerperformance.net
059 Subject: Mail delivery failed: returning message to sender
047I Message-Id: <E1AaI90-0003Qw-Ch@srv2.xxxx.com>
038 Date: Sat, 27 Dec 2003 12:22:30 -0500

 

 

 

 

Top