Probably the conversion of certain non-text characters by one of the
mail programs along the way ...  
=20  is hex 20 or ascii 32 (space)
=3D  is hex 3D or ascii 62 (>) 
Someone with more knowledge of the inner workings of e-mail can probably
provide a better explanation.
-Rob 
> 
> (BTW -- anyone know why do I see =3D> in some posts?)
> > 
> *********************************************************************
> > Due to deletion of content types excluded from this list by policy, 
> > this multipart message was reduced to a single part, and 
> from there to 
> > a plain text message.
> > 
> *********************************************************************