Christopher,

> I believe firewalls are a fine idea, but your return addresses now don't
> show the legitimate way in.

Actually it does. The header from Dan's email said:

From: Dan Ingalls <DanI at wdi.disney.com>

Maybe you should instruct your email client to use the "From:" field
rather than the "X-Sender:" field.

  Andreas
-- 
Linear algebra is your friend - Trigonometry is your enemy.
+===== Andreas Raab ============= (raab at isg.cs.uni-magdeburg.de) =====+
I Department of Simulation and Graphics      Phone: +49 391 671 8065  I
I University of Magdeburg, Germany           Fax:   +49 391 671 1164  I
+=============< http://isgwww.cs.uni-magdeburg.de/~raab >=============+