Odd message from Merrimack College?

["Eric Nilsson" <enilsson@xxxxxxxxx>]

Doug wrote,

> virus checkers
> telling me an email I never sent to someone I don't know was
> infected. The identity of the real source is usually in the
> "X-Sender:" field; the address in the "From:" field is forged.

Checking all the internet headers of the message I got suggests that it
originally might have come from merrimack.edu, that is, Merrimack College,
instead of from the pen-l server.

A quick check of Merrimack's economics department reveals that Jack
Amariglio, who might be on pen-l, is there. Or maybe someone else on pen-l
is there. It might be that when a pen-l message was delivered to Merrimack a
virus/worm generated the message I got. Or maybe not.

Eric