Can I track who sent e-mail with strange attachment?

This morning I found an undelivered e-mail note from
mail-(E-Mail Removed) in my Netscape inbox. At 2003-8-18, 8:23 AM,
ZoneAlarm Pro reported changing an attachment called LzkQsplWge.exe to
LzkQsplWge.zl9, which is a nice ZoneAlarm feature, but there is no
sign of the e-mail in question - not in my inbox, trash or junk
folders. BTW I am running Netscape as my mailer, plus Norton AV (with
e-mail scanning DISabled) and ZA Pro. Does one of these have an
automatic feed to VirusAlert?

The body of the undelivered e-mail note says

Undelivered to (E-Mail Removed)

It has the following headers - can one tell if they are spoofed?

X-UIDL: <(E-Mail Removed)>

Return path: <(E-Mail Removed)>

Received: rom VL-MO-MR004.ip.videotron.ca ([24.201.245.36])
by fep03-mail.bloor.is.net.cable.rogers.com (InterMail
vM.5.01.05.12 201-253-122-126-112-20020820) with ESMTP id
<20030817234313.WTVH6368.fep03-(E-Mail Removed)>
for <(E-Mail Removed)>; Sun, 17 Aug 2003 19:43:13
-0400

Received:from jCisP ([24.202.23.161]) by VL-MO-MR004.ip.videotron.ca
(iPlanet Messaging Server 5.2 HotFix 1.16 (built May 14 2003)) with
SMTP id <(E-Mail Removed)> for
(E-Mail Removed); Sun, 17 Aug 2003 19:40:46 -0400 (EDT)

Anyone know what all this means?

Thanks in advance!

BTW I don't do any business (that I know of) with Videotron, so I'm
curious if anyone can reconstruct the sequence of events...