[Exim] Can I use ${perl{...}} in local_domains somehow ?

Next bit of configuration block; I can't see a way of using a ${perl{...}}
expansion in local_domains.

Is there someway I have missed, or should I be offering to write a
"transparent" (or maybe "expand") query lookup that actually does a simple
string expansion ?

rgds,
--
Peter Galbavy
Knowledge Matters Ltd.
http://www.knowledge.com/