This is a multi-part message in MIME format.
--
[ Picked text/plain from multipart/alternative ]
Is it possible to query a file or database from a system filter?
if $sender_address matches any of the addresses in the /usr/exim/someusers
file do something
if foranyaddress /usr/exim/someusers: ($thisaddress matches
$sender_address)
then
..
Endif
Thanks
--