Delivery Notification: Delivery has failed

This report relates to a message you sent with the following header fields:

  Message-id: <BBF62367.90DC5316(*)testcompany.COM>   Date: Sat, 10 Nov 2007 14:22:45 +0100
  From: fraz Lynard <fraz_Lynard(*)testcompany.COM>   To: patch2(*)catarina.usc.edu
  Subject: <<SPAM?>> 3669

Your message cannot be delivered to the following recipients:

  Recipient address: patch2(*)catarina.usc.edu   Reason: Remote SMTP server has rejected address   Diagnostic code: smtp;550 5.1.1 <patch2(*)catarina.usc.edu>... User unknown   Remote system: dns;catarina.usc.edu (TCP|128.125.137.211|49716|204.57.0.1|25) (catarina.usc.edu ESMTP Sendmail 8.12.9/8.12.9; Sat, 10 Nov 2007 05:22:40 -0800 [PST])