[exim] Mangling headers for spamd

Hi,
I'd like to ask how to change all X-Spam* headers on incoming messages (for
example to X-Incoming-Spam*) before the mail gets scanned by spamd (so I can
use them in SA local rules). I am using exim 4.62 with content scanning.

Ax
--
Václav Hůla,
správce unixových serverů
Přírodovědecká fakulta
Univerzita Karlova v Praze