[Exim] exim system filter problem

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Hello,

I use exim 4.30, spamassassin and amavis.
I try to use system filter to take a copy of SPAM mark message an to deliver same
message to original recipient.

When I test filter, everything seems to work normal
When I look log files, it seems that message deliver to original recipient, but
never get to mailbox. There is no message in queue.

What I'm doing wrong?

Here is my system filter

# Exim filter

if not first_delivery
then
finish
endif

if first_delivery and $h_X-Spam-Status: contains "YES"
    then
 logfile /var/log/exim/spamlog
 logwrite "$tod_log From: $h_From: Subject: $h_Subject: \n \t X-Spam-Status: $h_X-Spam-Status: Sender: $sender_address"
 save /var/spool/mail/SPAMMAILS
# mail to "$local_part@$domain"   # try this with no success
 finish
#   mail to $recipients                # try this with no success
#   seen finish                           # blackhole
 finish
endif

Any good tutorial about exim filter ?

Thanks

Boris
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