aptitude install policyd-weight

policyd-weight defaults > /etc/policyd-weight.conf

###  check_policy_service inet:127.0.0.1:12525,

check_policy_service inet:127.0.0.1:12525,

/etc/init.d/policyd-weight restart
postfix reload

# volatile repository (e.g. for clamav)
deb http://volatile.debian.org/debian-volatile lenny/volatile main contrib non-free

aptitude install amavisd-new spamassassin clamav clamav-daemon clamav-freshclam pax lha arj bzip2 unrar zoo nomarch cpio lzop cabextract apt-listchanges libauthen-sasl-perl libdbi-perl dspam libmail-dkim-perl razor pyzor dcc-client libdbd-pg-perl

$unrar      = ['rar', 'unrar']; #disabled (non-free, no security support)
#$unrar         = undef;
$lha    = 'lha'; #disabled (non-free, no security support)
#$lha   = undef;

@local_domains_acl = ( "." );

$myhostname = "mail.domain.tld";

@bypass_virus_checks_maps = ( 
   \%bypass_virus_checks, \@bypass_virus_checks_acl, \$bypass_virus_checks_re);
@bypass_spam_checks_maps = (
   \%bypass_spam_checks, \@bypass_spam_checks_acl, \$bypass_spam_checks_re);

$final_virus_destiny      = D_DISCARD;  # (data not lost, see virus quarantine)
$final_banned_destiny     = D_PASS;   # D_REJECT when front-end MTA
$final_spam_destiny       = D_PASS;
$final_bad_header_destiny = D_PASS;     # False-positive prone (for spam)
 
# $sa_spam_subject_tag = '***SPAM*** ';
$sa_tag_level_deflt  = undef;

$max_servers = 2;
 
$policy_bank{'MYNETS'} = {   # mail originating from @mynetworks
  originating => 1,  # is true in MYNETS by default, but let's make it explicit
  os_fingerprint_method => undef,  # don't query p0f for internal clients
};
 
$recipient_delimiter = '+';
 
$warnvirusrecip = 1;
 
$mailfrom_notify_admin = "postmaster\@$mydomain";
$mailfrom_notify_recip = "postmaster\@$mydomain";
$mailfrom_notify_spamadmin = "postmaster\@$mydomain";

adduser clamav amavis

content_filter = amavis:[127.0.0.1]:10024
receive_override_options = no_address_mappings

amavis       unix  -       -       n       -       2       lmtp 
    -o lmtp_data_done_timeout=1200
    -o lmtp_send_xforward_command=yes
    -o disable_dns_lookups=yes
    -o max_use=20
127.0.0.1:10025 inet n  -       n       -       -       smtpd
    -o content_filter=
    -o local_recipient_maps=
    -o relay_recipient_maps=
    -o smtpd_delay_reject=no
    -o smtpd_restriction_classes=
    -o smtpd_client_restrictions=
    -o smtpd_helo_restrictions=
    -o smtpd_sender_restrictions=
    -o smtpd_recipient_restrictions=permit_mynetworks,reject
    -o smtpd_data_restrictions=reject_unauth_pipelining
    -o smtpd_end_of_data_restrictions=
    -o mynetworks=127.0.0.0/8    -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

/etc/init.d/postfix restart
/etc/init.d/amavis restart
/etc/init.d/clamav-daemon restart

X-virus-scanned: Debian amavisd-new at domain.tld
X-spam-flag: NO
X-spam-score: 2.898
X-spam-level: **
X-spam-status: No, score=2.898 required=6.31 tests=[SPF_PASS=-0.001, TVD_SPACE_RATIO=2.899]

sendmail john@example.com < /usr/share/doc/spamassassin/examples/sample-spam.txt

telnet localhost 25
HELO localhost
MAIL FROM: <user@change_to_my_domain.tld>
RCPT TO: <user@change_to_my_domain.tld>
DATA
From: virus-tester
To: undisclosed-recipients:;
Subject: amavisd test - simple - spam test pattern
X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
.
 
quit

use_bayes 1
use_bayes_rules 1
bayes_auto_learn 1
bayes_auto_expire 0
 
# pyzor
use_pyzor 1
pyzor_path /usr/bin/pyzor
 
# razor
use_razor2 1
razor_config /etc/razor/razor-agent.conf

loadplugin Mail::SpamAssassin::Plugin::DKIM

loadplugin Mail::SpamAssassin::Plugin::Shortcircuit
loadplugin Mail::SpamAssassin::Plugin::Rule2XSBody

su - amavis
razor-admin -create

sa-update

#!/bin/bash
 
sa-update &> /dev/null
sa-compile &> /dev/null
 
exit 0

crontab -e
42 3 * * * /usr/local/sbin/updateSpamassassin &> /dev/null

#!/bin/bash
 
VMAILDIR="/var/vmail"
SADIR="/var/lib/amavis/.spamassassin"
DBPATH="/var/lib/amavis/.spamassassin/bayes"
 
cd $VMAILDIR
for domain in $(find ./ -maxdepth 1 -not -name "." -type d); do
        domaindir="$VMAILDIR/$domain"
        cd $domaindir
        for user in $(find ./ -maxdepth 1 -not -name "." -type d); do
                maildir="$domaindir/$user/maildir"
                inbox="$maildir/cur"
                junk="$maildir/.Junk/cur"
 
                echo "Learning ham from $inbox"
                sa-learn --ham --showdots --dbpath $DBPATH $inbox
                echo "Learning junk from $junk"
                sa-learn --spam --showdots --dbpath $DBPATH $junk
        done
done
 
chown -R amavis:amavis $SADIR

crontab -e
33 4 * * 0 /usr/local/sbin/trainSpamassassin &> /dev/null

require ["fileinto"];
# Move spam to spam folder
if header :contains "X-Spam-Flag" ["YES"] {
  fileinto "Junk";
  stop;
}