A list definition of
 
* DEFAULT-OPTIONS= SHORTHDR
 
might be what is desired.
 
Also, many (all?) Eudora mail readers have an ICON marked
something like 'blah blah blah' (which is a toggle operation
when clicked) -- it controls the display of all those
"messy" headers by the client (this is regardless of
RECEIVED-line header-generation by mail agents and
managers).
 
/Pete Weiss at Penn State (who always has a bad case of the BLAHS ;-) )