I just got one with content! Well, sort of.
The HTML part contained a forged set of headers -- just the user-visible ones you expect on an inline forward:
----- Original Message ----- From: To: btxiberk@<probably_forged_domain> Sent: Wednesday, February 1, 2006 11:33 AM Subject: hey perl
That was it. (The target address was, of course, perl @ this domain.) The To: line bore no resemblance to the sender on the actual message, except for having an obviously random left-hand side.
-- Kelson Vibber SpeedGate Communications <www.speed.net>