On ZCS 7 @ Fedora we were using mailfilter script: https://www.zimbra.com/forums/admini...-database.html
a little bit modified since then.

Now we moved to ZCS 8 @ Ubuntu and recreated everything including those scripts, but for some reason it does not work. The mail server works like a charm, but the content_filter is completely ignored - i don't see any mail copied, nor any trace of 'mailfilter' in logs.

Any idea how to fix this or to make all the mails (in and out) to be copied into designated folder?

mailfilter.sh
Code:
#!/bin/sh

# Localize these. The -G option does nothing before Postfix 2.3.
INSPECT_DIR=/home/mailfilter/filter/poczta
SENDMAIL="/opt/zimbra/postfix/sbin/sendmail -G -i" # NEVER NEVER NEVER use "-t" here.

# Exit codes from <sysexits.h>
EX_TEMPFAIL=75
EX_UNAVAILABLE=69

# Clean up when done or when aborting.
trap "rm -f in.$$" 0 1 2 3 15

# Start processing.
cd $INSPECT_DIR || {
    echo $INSPECT_DIR does not exist; exit $EX_TEMPFAIL; }

cat >in.$$ || {
    echo Cannot save mail to file; exit $EX_TEMPFAIL; }

'cp' -rf in.$$ "$(($(date +%s%N)/1000000))"

$SENDMAIL "$@" <in.$$

exit 0

master.cf.in
Code:
#
# Postfix master process configuration file.  For details on the format
# of the file, see the Postfix master(5) manual page.
#
# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (100)
# ==========================================================================
smtp      inet  n       -       n       -       -       smtpd
	-o smtpd_tls_security_level=%%zimbraMtaTlsSecurityLevel%%
%%uncomment SERVICE:opendkim%%	-o content_filter=scan:[%%zimbraLocalBindAddress%%]:10030
%%uncomment LOCAL:postjournal_enabled%%	-o smtpd_proxy_filter=[%%zimbraLocalBindAddress%%]:10027
%%uncomment LOCAL:postjournal_enabled%%	-o smtpd_proxy_options=speed_adjust
	-o content_filter=mailfilter:dummy
465    inet  n       -       n       -       -       smtpd
%%uncomment SERVICE:opendkim%%	-o content_filter=scan:[%%zimbraLocalBindAddress%%]:10030
	-o smtpd_tls_wrappermode=yes 
	-o smtpd_sasl_auth_enable=yes
	-o smtpd_client_restrictions=
	-o smtpd_data_restrictions=
	-o smtpd_helo_restrictions=
	-o smtpd_recipient_restrictions=
	-o smtpd_relay_restrictions=permit_sasl_authenticated,reject
	-o syslog_name=postfix/smtps
	-o milter_macro_daemon_name=ORIGINATING
	-o content_filter=mailfiter:dummy
%%uncomment LOCAL:postjournal_enabled%%	-o smtpd_proxy_filter=[%%zimbraLocalBindAddress%%]:10027
%%uncomment LOCAL:postjournal_enabled%%	-o smtpd_proxy_options=speed_adjust
submission inet n      -       n       -       -       smtpd
%%uncomment SERVICE:opendkim%%	-o content_filter=scan:[%%zimbraLocalBindAddress%%]:10030
	-o smtpd_etrn_restrictions=reject
	-o smtpd_sasl_auth_enable=%%zimbraMtaSaslAuthEnable%%
	-o smtpd_tls_security_level=%%zimbraMtaTlsSecurityLevel%%
	-o smtpd_client_restrictions=permit_sasl_authenticated,reject
	-o smtpd_data_restrictions=
	-o smtpd_helo_restrictions=
	-o smtpd_recipient_restrictions=
	-o smtpd_relay_restrictions=permit_sasl_authenticated,reject
	-o syslog_name=postfix/submission
	-o milter_macro_daemon_name=ORIGINATING
	-o content_filter=mailfilter:dummy
%%uncomment LOCAL:postjournal_enabled%%	-o smtpd_proxy_filter=[%%zimbraLocalBindAddress%%]:10027
%%uncomment LOCAL:postjournal_enabled%%	-o smtpd_proxy_options=speed_adjust
scan      unix  -       -       n       -       10      smtp
	-o smtp_send_xforward_command=yes
	-o disable_mime_output_conversion=yes
	-o smtp_generic_maps=
pickup    unix  n       -       n       60      1       pickup
cleanup   unix  n       -       n       -       0       cleanup
qmgr      unix  n       -       n       300     1       qmgr
tlsmgr    unix  -       -       n       1000?   1       tlsmgr
rewrite   unix  -       -       n       -       -       trivial-rewrite
bounce    unix  -       -       n       -       0       bounce
defer     unix  -       -       n       -       0       bounce
trace     unix  -       -       n       -       0       bounce
verify    unix  -       -       n       -       1       verify
flush     unix  n       -       n       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
smtp      unix  -       -       n       -       -       smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay     unix  -       -       n       -       -       smtp
#	-o fallback_relay=
showq     unix  n       -       n       -       -       showq
error     unix  -       -       n       -       -       error
retry     unix  -       -       n       -       -       error
discard   unix  -       -       n       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       n       -       -       lmtp
anvil     unix  -       -       n       -       1       anvil
scache	  unix	-	-	n	-	1	scache
%%uncomment LOCAL:postfix_enable_smtpd_policyd%%policy    unix  -       n       n       -       0       spawn
%%uncomment LOCAL:postfix_enable_smtpd_policyd%%	user=zimbra argv=/usr/bin/perl /opt/zimbra/libexec/zmpostfixpolicyd
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent.  See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop  unix  -       n       n       -       -       pipe
  flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}

mailfilter unix - n n - 10 pipe
  flags=Rq user=mailfilter null_sender=
  argv=/home/mailfilter/mailfilter.sh -f ${sender} -- ${recipient}

#
# The Cyrus deliver program has changed incompatibly, multiple times.
#
old-cyrus unix  -       n       n       -       -       pipe
  flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
cyrus     unix  -       n       n       -       -       pipe
  user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
#
# See the Postfix UUCP_README file for configuration details.
#
uucp      unix  -       n       n       -       -       pipe
  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail    unix  -       n       n       -       -       pipe
  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp     unix  -       n       n       -       -       pipe
  flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
#
# AMAVISD-NEW
#
smtp-amavis unix -      -       n       -       10  smtp
	-o smtp_data_done_timeout=1200
	-o smtp_send_xforward_command=yes
	-o disable_dns_lookups=yes
	-o max_use=20
[%%zimbraLocalBindAddress%%]:10025 inet n  -       n       -       -  smtpd
	-o content_filter=
	-o local_recipient_maps=
	-o virtual_mailbox_maps=
	-o virtual_alias_maps=
	-o relay_recipient_maps=
	-o smtpd_restriction_classes=
	-o smtpd_delay_reject=no
	-o smtpd_client_restrictions=permit_mynetworks,reject
	-o smtpd_data_restrictions=
	-o smtpd_end_of_data_restrictions=
	-o smtpd_helo_restrictions=
	-o smtpd_milters=
	-o smtpd_sender_restrictions=
	-o smtpd_reject_unlisted_sender=no
	-o smtpd_relay_restrictions=
	-o smtpd_recipient_restrictions=permit_mynetworks,reject
	-o mynetworks_style=host
	-o mynetworks=127.0.0.0/8,[::1]/128
	-o strict_rfc821_envelopes=yes
	-o smtpd_error_sleep_time=0
	-o smtpd_soft_error_limit=1001
	-o smtpd_hard_error_limit=1000
	-o smtpd_client_connection_count_limit=0
	-o smtpd_client_connection_rate_limit=0
	-o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_address_mappings
	-o local_header_rewrite_clients=
	-o syslog_name=postfix/amavisd
	-o content_filter=mailfilter:dummy
[%%zimbraLocalBindAddress%%]:10030 inet n - n - - smtpd
	-o local_recipient_maps=
	-o virtual_mailbox_maps=
	-o virtual_alias_maps=
	-o relay_recipient_maps=
	-o smtpd_restriction_classes=
	-o smtpd_delay_reject=no
	-o smtpd_milters=inet:localhost:8465
	-o smtpd_client_restrictions=permit_mynetworks,reject
	-o smtpd_sender_restrictions=
	-o smtpd_helo_restrictions=
	-o smtpd_recipient_restrictions=permit_mynetworks,reject
	-o smtpd_reject_unlisted_sender=no
	-o smtpd_relay_restrictions=
	-o smtpd_data_restrictions=
	-o smtpd_end_of_data_restrictions=
	-o syslog_name=postfix/dkimmilter
	-o content_filter=mailfilter:dummy
%%uncomment SERVICE:antispam%%	-o content_filter=smtp-amavis:[%%zimbraLocalBindAddress%%]:10032
%%uncomment SERVICE:!antispam%%	-o content_filter=smtp:[%%zimbraLocalBindAddress%%]:10025
#
# PostJournal
#
[%%zimbraLocalBindAddress%%]:10027 inet n   n       n       -       -       spawn
	-o smtp_send_xforward_command=yes
	user=zimbra argv=/opt/zimbra/postfix-journal/bin/postjournal

[%%zimbraLocalBindAddress%%]:10028 inet n  -       n       -       -  smtpd
	-o smtpd_authorized_xforward_hosts=127.0.0.0/8
	-o smtpd_client_restrictions=
	-o smtpd_proxy_filter=
	-o smtpd_helo_restrictions=
	-o smtpd_sender_restrictions=
	-o smtpd_recipient_restrictions=permit_mynetworks,reject
	-o smtpd_data_restrictions=
	-o smtpd_reject_unlisted_sender=no
	-o mynetworks=127.0.0.0/8,[::1]/128
	-o receive_override_options=no_unknown_recipient_checks
	-o syslog_name=postfix/reinject

[%%zimbraLocalBindAddress%%]:10029 inet n  -       n       -       -  smtpd
	-o smtpd_client_restrictions=
	-o smtpd_proxy_filter=
	-o content_filter=
	-o smtpd_helo_restrictions=
	-o smtpd_sender_restrictions=
	-o smtpd_recipient_restrictions=permit_mynetworks,reject
	-o smtpd_reject_unlisted_sender=no
	-o smtpd_data_restrictions=
	-o mynetworks=127.0.0.0/8,[::1]/128
	-o receive_override_options=no_unknown_recipient_checks
	-o syslog_name=postfix/archive


Release 8.0.7.GA.6021.UBUNTU12.64 UBUNTU12_64 FOSS edition.