How can a virus be sent from here?

[Kenward Vaughan <kaynjay@igalaxy.net>]

I received a message from our ISP stating the following:

----
Antigen for Exchange found aCrumb.pif infected with VIRUS= I-Worm.Klez.h
(Kaspersky,Sophos) worm.
The message is currently Purged.  The message, "Unescape(aCrumb", was
sent from kaynjay  and was discovered in SMTP Messages\Inbound
located at Beckett Publications/Dallas/S00EXCHANGE01.


 <http://www.beckett.com/>
http://www.beckett.com <http://www.beckett.com/>
----

I have a gateway/mail server/firewall on my old 486 with pppd, etc.  I
searched all mail for "aCrumb" on that machine and this one (the only other
I have internally), including the Win partition (which doesn't get used for
that stuff anyway), with no results.

I wrote the postmaster asking for a copy of the message's information (if it
exists, since the above mentions the message being purged..).

Not being geekish, I don't know how to look for other possibilities.  Could
someone be bouncing stuff off of our address (not a fixed one AFAIK), or
could the other box (pure Woody) be compromised? 

Thanks,


Kenward
-- 
In a completely rational society, the best of us would aspire to be 
_teachers_ and the rest of us would have to settle for something less, 
because passing civilization along from one generation to the next 
ought to be the highest honor and the highest responsibility anyone 
could have.     - Lee Iacocca