Reporting-MTA: dns; smtp.cs.uchicago.edu
Arrival-Date: Sun, 17 Dec 2006 21:57:24 -0600 (CST)

Final-Recipient: rfc822; kentsang@mailmight.com
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host in1.smtp.messagingengine.com[66.111.4.72]
    said: 550 Error: Common virus payload files .pif, .scr, .com, and .cpl
    blocked (eg. W32/Sobig). To send this file, please zip it first (in reply
    to end of DATA command)