how to globally modify the default encoding on OL2002 and later?

[changing default outlook encoding]

We have a unique and isolated case where a user is sending message using Juno
e-mail client to one of our campus member (using MS Outlook). I can open it
find and the view codes reveal the following: "< ! D O C T Y P E H T M L
P U B L I C " - / / W 3 C / / D T D H T M L 4 . 0 T r a n s i t i o n
a l / / E N " >
< H T M L > < H E A D >
< M E T A h t t p - e q u i v = C o n t e n t - T y p e c o n t e n t
= " t e x t / h t m l ; c h a r s e t = u n i c o d e " >
< M E T A c o n t e n t = " M S H T M L 6 . 0 0 . 2 8 0 0 . 1 4 0 0 "
n a m e = G E N E R A T O R > < / H E A D >
< B O D Y >
< H T M L > < H E A D >
< M E T A c o n t e n t = " M S H T M L 6 . 0 0 . 2 8 0 0 . 1 4 0 0 "
n a m e = G E N E R A T O R > < / H E A D >
< H T M L d i r = l t r > < H E A D > < T I T L E > M e s s a g e < / T
I T L E >
< M E T A c o n t e n t = " M S H T M L 6 . 0 0 . 2 8 0 0 . 1 4 0 0 "
n a m e = G E N E R A T O R >
The font is getting disturded when I try to forward this particular message
(received from Juno) to another person. I'm getting lots of chinese
characters.
Any assistance in how to correct this will be greatly appreciated.

Pablo