[Exim] Why not have different local-part-suffix separators?

Hi there,

why can't I have BOTH "-" and "+" as the local-part-suffix separator? Exim
complaints and accepts just the first one.

Cheers,

Ralf

--
   L I N U X       .~.
  The  Choice      /V\
   of a  GNU      /( )\
  Generation      ^^-^^