[AMaViS-user] virtual users and amavis

Hi there,
I hope u are having a fine day :)
Got a strange problem. suse 6.2   2.2.14  amavis 0.2.1  exim 3.14  basically
a standard install of amavis.
not sure whether this is an exim problem or amavis but I'm hoping that
someone may have come across it.

I have setup amavis to scan everything b4 it hits any localuser ie aliases
the lot.
This mailserver does virtual mail hosting with a completely virtual pop3
setup

basically if the address is a virtual local user and the user name is not a
localuser (in /etc/passwd) it wont get scanned by amavis, if the username is
a localuser (in /etc/passwd) it will get scanned by amavis.  ie:
say email comes in for fr...@do... and fred is not a localuser of the
box it gets delivered to his virtual mailbox with no scanning.
then email comes in for fr...@do... and fred is a localuser of the box
it gets delivered to his virtual mailbox with scanning.
can't make heads or tails of it.

other than that exim and amavis fine.

please find attached a semi edited config file :)

Any help appreciated :)

cya
Andrew