here you are:

use strict;

# a minimalistic configuration file for amavisd-new with all necessary settings
#
#   see amavisd.conf-default for a list of all variables with their defaults;
#   see amavisd.conf-sample for a traditional-style commented file;
#   for more details see documentation in INSTALL, README_FILES/*
#   and at http://www.ijs.si/software/amavisd/amav … -docs.html

# COMMONLY ADJUSTED SETTINGS:

# @bypass_virus_checks_maps = (1);  # controls running of anti-virus code
# @bypass_spam_checks_maps  = (1);  # controls running of anti-spam code
# $bypass_decode_parts = 1;         # controls running of decoders&dearchivers

$max_servers = 10;            # num of pre-forked children (2..30 is common), -m
$daemon_user  = '<user>';     # (no default;  customary: , -u
$daemon_group = '<group>';     # (no default;  customary: ), -g

$mydomain = "<domain>";    # = 'example.com';   # a convenient default for other settings

$MYHOME = '/var/spool/amavisd';   # a convenient default for other settings, -H
$TEMPBASE = "$MYHOME/tmp";   # working directory, needs to exist, -T
$ENV{TMPDIR} = $TEMPBASE;    # environment variable TMPDIR, used by SA, etc.
$QUARANTINEDIR = "/var/spool/amavisd/quarantine";
# $quarantine_subdir_levels = 1;  # add level of subdirs to disperse quarantine
# $release_format = 'resend';     # 'attach', 'plain', 'resend'
# $report_format  = 'arf';        # 'attach', 'plain', 'resend', 'arf'

# $daemon_chroot_dir = $MYHOME;   # chroot directory or undef, -R

$db_home   = "$MYHOME/db";        # dir for bdb nanny/cache/snmp databases, -D
# $helpers_home = "$MYHOME/var";  # working directory for SpamAssassin, -S
$lock_file = "/var/run/amavisd/amavisd.lock";  # -L
$pid_file  = "/var/run/amavisd/amavisd.pid";   # -P
#NOTE: create directories $MYHOME/tmp, $MYHOME/var, $MYHOME/db manually

$log_level = 0;              # verbosity 0..5, -d
$log_recip_templ = undef;    # disable by-recipient level-0 log entries
$DO_SYSLOG = 1;              # log via syslogd (preferred)
$syslog_facility = 'mail';   # Syslog facility as a string
           # e.g.: mail, daemon, user, local0, ... local7
$syslog_priority = 'debug';  # Syslog base (minimal) priority as a string,
           # choose from: emerg, alert, crit, err, warning, notice, info, debug

$enable_db = 1;              # enable use of BerkeleyDB/libdb (SNMP and nanny)
$enable_global_cache = 1;    # enable use of libdb-based cache if $enable_db=1
$nanny_details_level = 2;    # nanny verbosity: 1: traditional, 2: detailed
$enable_dkim_verification = 1;  # enable DKIM signatures verification
$enable_dkim_signing = 1;    # load DKIM signing code, keys defined by dkim_key

@local_domains_maps = ( [".$mydomain","<domain>".........] );  # list of all local domains

@mynetworks = qw( 127.0.0.0/8 [::1]  );

$unix_socketname = "$MYHOME/amavisd.sock";  # amavisd-release or amavis-milter
               # option(s) -p overrides $inet_socket_port and $unix_socketname

$inet_socket_port = [<ports>];

$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
  allow_disclaimers => 1, # enables disclaimer insertion if available
};

# it is up to MTA to re-route mail from authenticated roaming users or
# from internal hosts to a dedicated TCP port (such as 10026) for filtering
$interface_policy{'<port>'} = 'ORIGINATING';

$policy_bank{'ORIGINATING'} = {  # mail supposedly originating from our users
  originating => 1,  # declare that mail was submitted by our smtp client
  allow_disclaimers => 1,  # enables disclaimer insertion if available
  # notify administrator of locally originating malware
  virus_admin_maps => ["root\@$mydomain"],
  spam_admin_maps  => ["root\@$mydomain"],
  warnbadhsender   => 1,
  # forward to a smtpd service providing DKIM signing service
  forward_method => 'smtp:[127.0.0.1]:<port>',
  # force MTA conversion to 7-bit (e.g. before DKIM signing)
  smtpd_discard_ehlo_keywords => ['8BITMIME'],
  bypass_banned_checks_maps => [1],  # allow sending any file names and types
  terminate_dsn_on_notify_success => 0,  # don't remove NOTIFY=SUCCESS option
};

$interface_policy{'SOCK'} = 'AM.PDP-SOCK'; # only applies with $unix_socketname

# Use with amavis-release over a socket or with Petr Rehor's amavis-milter.c
# (with amavis-milter.c from this package or old amavis.c client use 'AM.CL'):
$policy_bank{'AM.PDP-SOCK'} = {
  protocol => 'AM.PDP',
  auth_required_release => 0,  # do not require secret_id for amavisd-release
};

$sa_tag_level_deflt  = -999;  # add spam info headers if at, or above that level
$sa_tag2_level_deflt = 6.2;  # add 'spam detected' headers at that level
$sa_kill_level_deflt = 6.9;  # triggers spam evasive actions (e.g. blocks mail)
$sa_dsn_cutoff_level = 10;   # spam level beyond which a DSN is not sent
$sa_crediblefrom_dsn_cutoff_level = 18; # likewise, but for a likely valid From
# $sa_quarantine_cutoff_level = 25; # spam level beyond which quarantine is off
$penpals_bonus_score = 8;    # (no effect without a @storage_sql_dsn database)
$penpals_threshold_high = $sa_kill_level_deflt;  # don't waste time on hi spam
$bounce_killer_score = 100;  # spam score points to add for joe-jobbed bounces

$sa_mail_body_size_limit = 400*1024; # don't waste time on SA if mail is larger
$sa_local_tests_only = 0;    # only tests which do not require internet access?

# @lookup_sql_dsn =
#   ( ['DBI:mysql:database=mail;host=127.0.0.1;port=3306', 'user1', 'passwd1'],
#     ['DBI:mysql:database=mail;host=host2', 'username2', 'password2'],
#     ["DBI:SQLite:dbname=$MYHOME/sql/mail_prefs.sqlite", '', ''] );
# @storage_sql_dsn = @lookup_sql_dsn;  # none, same, or separate database

# $timestamp_fmt_mysql = 1; # if using MySQL *and* msgs.time_iso is TIMESTAMP;
#   defaults to 0, which is good for non-MySQL or if msgs.time_iso is CHAR(16)

$virus_admin               = undef;                    # notifications recip.

$mailfrom_notify_admin     = undef;                    # notifications sender
$mailfrom_notify_recip     = undef;                    # notifications sender
$mailfrom_notify_spamadmin = undef;                    # notifications sender
$mailfrom_to_quarantine = ''; # null return path; uses original sender if undef

@addr_extension_virus_maps      = ('virus');
@addr_extension_banned_maps     = ('banned');
@addr_extension_spam_maps       = ('spam');
@addr_extension_bad_header_maps = ('badh');
# $recipient_delimiter = '+';  # undef disables address extensions altogether
# when enabling addr extensions do also Postfix/main.cf: recipient_delimiter=+

$path = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/usr/bin:/bin';
# $dspam = 'dspam';

$MAXLEVELS = 14;
$MAXFILES = 1500;
$MIN_EXPANSION_QUOTA =      100*1024;  # bytes  (default undef, not enforced)
$MAX_EXPANSION_QUOTA = 300*1024*1024;  # bytes  (default undef, not enforced)

$sa_spam_subject_tag = '***SPAM*** ';
$defang_virus  = 1;  # MIME-wrap passed infected mail
$defang_banned = 0;  # MIME-wrap passed mail containing banned name
# for defanging bad headers only turn on certain minor contents categories:
$defang_by_ccat{+CC_BADH.",3"} = 1;  # NUL or CR character in header
$defang_by_ccat{+CC_BADH.",5"} = 1;  # header line longer than 998 characters
$defang_by_ccat{+CC_BADH.",6"} = 1;  # header field syntax error

# OTHER MORE COMMON SETTINGS (defaults may suffice):

# $myhostname = 'host.example.com';  # must be a fully-qualified domain name!

# $notify_method  = 'smtp:[127.0.0.1]:10025';
# $forward_method = 'smtp:[127.0.0.1]:10025';  # set to undef with milter!

#$final_virus_destiny      = D_DISCARD;
#$final_banned_destiny     = D_BOUNCE;
#$final_spam_destiny       = D_DISCARD;
#$final_bad_header_destiny = D_BOUNCE;
# $bad_header_quarantine_method = undef;

# $os_fingerprint_method = 'p0f:*:2345';  # to query p0f-analyzer.pl

## hierarchy by which a final setting is chosen:
##   policy bank (based on port or IP address) -> *_by_ccat
##   *_by_ccat (based on mail contents) -> *_maps
##   *_maps (based on recipient address) -> final configuration value

# SOME OTHER VARIABLES WORTH CONSIDERING (see amavisd.conf-default for all)

# $warnbadhsender,
# $warnvirusrecip, $warnbannedrecip, $warnbadhrecip, (or @warn*recip_maps)
#
# @bypass_virus_checks_maps, @bypass_spam_checks_maps,
# @bypass_banned_checks_maps, @bypass_header_checks_maps,
#
# @virus_lovers_maps, @spam_lovers_maps,
# @banned_files_lovers_maps, @bad_header_lovers_maps,
#
# @blacklist_sender_maps, @score_sender_maps,
#
# $clean_quarantine_method, $virus_quarantine_to, $banned_quarantine_to,
# $bad_header_quarantine_to, $spam_quarantine_to,
#
# $defang_bad_header, $defang_undecipherable, $defang_spam

# REMAINING IMPORTANT VARIABLES ARE LISTED HERE BECAUSE OF LONGER ASSIGNMENTS

@keep_decoded_original_maps = (new_RE(
  qr'^MAIL$',   # retain full original message for virus checking
  qr'^MAIL-UNDECIPHERABLE$', # recheck full mail if it contains undecipherables
  qr'^(ASCII(?! cpio)|text|uuencoded|xxencoded|binhex)'i,
# qr'^Zip archive data',     # don't trust Archive::Zip
));

# for $banned_namepath_re (a new-style of banned table) see amavisd.conf-sample

$banned_filename_re = new_RE(

### BLOCKED ANYWHERE
# qr'^UNDECIPHERABLE$',  # is or contains any undecipherable components
  qr'^\.(exe-ms|dll)$',                   # banned file(1) types, rudimentary
# qr'^\.(exe|lha|cab|dll)$',              # banned file(1) types

### BLOCK THE FOLLOWING, EXCEPT WITHIN UNIX ARCHIVES:
# [ qr'^\.(gz|bz2)$'             => 0 ],  # allow any in gzip or bzip2
  [ qr'^\.(rpm|cpio|tar)$'       => 0 ],  # allow any in Unix-type archives

  qr'.\.(pif|scr)$'i,                     # banned extensions - rudimentary
# qr'^\.zip$',                            # block zip type

### BLOCK THE FOLLOWING, EXCEPT WITHIN ARCHIVES:
# [ qr'^\.(zip|rar|arc|arj|zoo)$'=> 0 ],  # allow any within these archives

  qr'^application/x-msdownload$'i,        # block these MIME types
  qr'^application/x-msdos-program$'i,
  qr'^application/hta$'i,

# qr'^message/partial$'i,         # rfc2046 MIME type
# qr'^message/external-body$'i,   # rfc2046 MIME type

# qr'^(application/x-msmetafile|image/x-wmf)$'i,  # Windows Metafile MIME type
# qr'^\.wmf$',                            # Windows Metafile file(1) type

  # block certain double extensions in filenames
  qr'^(?!cid:).*\.[^./]*[A-Za-z][^./]*\.\s*(exe|vbs|pif|scr|bat|cmd|com|cpl|dll)[.\s]*$'i,

# qr'\{[0-9a-f]{8}(-[0-9a-f]{4}){3}-[0-9a-f]{12}\}?'i, # Class ID CLSID, strict
# qr'\{[0-9a-z]{4,}(-[0-9a-z]{4,}){0,7}\}?'i, # Class ID extension CLSID, loose

  qr'.\.(exe|vbs|pif|scr|cpl)$'i,             # banned extension - basic
# qr'.\.(exe|vbs|pif|scr|cpl|bat|cmd|com)$'i, # banned extension - basic+cmd
# qr'.\.(ade|adp|app|bas|bat|chm|cmd|com|cpl|crt|emf|exe|fxp|grp|hlp|hta|
#        inf|ins|isp|js|jse|lnk|mda|mdb|mde|mdw|mdt|mdz|msc|msi|msp|mst|
#        ops|pcd|pif|prg|reg|scr|sct|shb|shs|vb|vbe|vbs|
#        wmf|wsc|wsf|wsh)$'ix,  # banned ext - long
# qr'.\.(ani|cur|ico)$'i,                 # banned cursors and icons filename
# qr'^\.ani$',                            # banned animated cursor file(1) type

# qr'.\.(mim|b64|bhx|hqx|xxe|uu|uue)$'i,  # banned extension - WinZip vulnerab.
);
# See http://support.microsoft.com/default.as … US;q262631
# and http://www.cknow.com/vtutor/vtextensions.htm

# ENVELOPE SENDER SOFT-WHITELISTING / SOFT-BLACKLISTING

@score_sender_maps = ({ # a by-recipient hash lookup table,
                        # results from all matching recipient tables are summed

# ## per-recipient personal tables  (NOTE: positive: black, negative: white)
# 'user1@example.com'  => [{'bla-mobile.press@example.com' => 10.0}],
# 'user3@example.com'  => [{'.ebay.com'                 => -3.0}],
# 'user4@example.com'  => [{'cleargreen@cleargreen.com' => -7.0,
#                           '.cleargreen.com'           => -5.0}],

  ## site-wide opinions about senders (the '.' matches any recipient)
  '.' => [  # the _first_ matching sender determines the score boost

   new_RE(  # regexp-type lookup table, just happens to be all soft-blacklist
    [qr'^(bulkmail|offers|cheapbenefits|earnmoney|foryou)@'i         => 5.0],
    [qr'^(greatcasino|investments|lose_weight_today|market\.alert)@'i=> 5.0],
    [qr'^(money2you|MyGreenCard|new\.tld\.registry|opt-out|opt-in)@'i=> 5.0],
    [qr'^(optin|saveonlsmoking2002k|specialoffer|specialoffers)@'i   => 5.0],
    [qr'^(stockalert|stopsnoring|wantsome|workathome|yesitsfree)@'i  => 5.0],
    [qr'^(your_friend|greatoffers)@'i                                => 5.0],
    [qr'^(inkjetplanet|marketopt|MakeMoney)\d*@'i                    => 5.0],
   ),

#  read_hash("/var/amavis/sender_scores_sitewide"),

   { # a hash-type lookup table (associative array)
     'nobody@cert.org'                        => -3.0,
     'cert-advisory@us-cert.gov'              => -3.0,
     'owner-alert@iss.net'                    => -3.0,
     'slashdot@slashdot.org'                  => -3.0,
     'securityfocus.com'                      => -3.0,
     'ntbugtraq@listserv.ntbugtraq.com'       => -3.0,
     'security-alerts@linuxsecurity.com'      => -3.0,
     'mailman-announce-admin@python.org'      => -3.0,
     'amavis-user-admin@lists.sourceforge.net'=> -3.0,
     'amavis-user-bounces@lists.sourceforge.net' => -3.0,
     'spamassassin.apache.org'                => -3.0,
     'notification-return@lists.sophos.com'   => -3.0,
     'owner-postfix-users@postfix.org'        => -3.0,
     'owner-postfix-announce@postfix.org'     => -3.0,
     'owner-sendmail-announce@lists.sendmail.org'   => -3.0,
     'sendmail-announce-request@lists.sendmail.org' => -3.0,
     'donotreply@sendmail.org'                => -3.0,
     'ca+envelope@sendmail.org'               => -3.0,
     'noreply@freshmeat.net'                  => -3.0,
     'owner-technews@postel.acm.org'          => -3.0,
     'ietf-123-owner@loki.ietf.org'           => -3.0,
     'cvs-commits-list-admin@gnome.org'       => -3.0,
     'rt-users-admin@lists.fsck.com'          => -3.0,
     'clp-request@comp.nus.edu.sg'            => -3.0,
     'surveys-errors@lists.nua.ie'            => -3.0,
     'emailnews@genomeweb.com'                => -5.0,
     'yahoo-dev-null@yahoo-inc.com'           => -3.0,
     'returns.groups.yahoo.com'               => -3.0,
     'clusternews@linuxnetworx.com'           => -3.0,
     lc('lvs-users-admin@LinuxVirtualServer.org')    => -3.0,
     lc('owner-textbreakingnews@CNNIMAIL12.CNN.COM') => -5.0,

     # soft-blacklisting (positive score)
     'sender@example.net'                     =>  3.0,
     '.example.net'                           =>  1.0,

   },
  ],  # end of site-wide tables
});

@decoders = (
  ['mail', \&do_mime_decode],
  ['asc',  \&do_ascii],
  ['uue',  \&do_ascii],
  ['hqx',  \&do_ascii],
  ['ync',  \&do_ascii],
  ['F',    \&do_uncompress, ['unfreeze','freeze -d','melt','fcat'] ],
  ['Z',    \&do_uncompress, ['uncompress','gzip -d','zcat'] ],
  ['gz',   \&do_uncompress,  'gzip -d'],
  ['gz',   \&do_gunzip],
  ['bz2',  \&do_uncompress,  'bzip2 -d'],
  ['lzo',  \&do_uncompress,  'lzop -d'],
  ['rpm',  \&do_uncompress, ['rpm2cpio.pl','rpm2cpio'] ],
  ['cpio', \&do_pax_cpio,   ['pax','gcpio','cpio'] ],
  ['tar',  \&do_pax_cpio,   ['pax','gcpio','cpio'] ],
  ['deb',  \&do_ar,          'ar'],
# ['a',    \&do_ar,          'ar'],  # unpacking .a seems an overkill
  ['zip',  \&do_unzip],
  ['7z',   \&do_7zip,       ['7zr','7za','7z'] ],
  ['rar',  \&do_unrar,      ['rar','unrar'] ],
  ['arj',  \&do_unarj,      ['arj','unarj'] ],
  ['arc',  \&do_arc,        ['nomarch','arc'] ],
  ['zoo',  \&do_zoo,        ['zoo','unzoo'] ],
  ['lha',  \&do_lha,         'lha'],
# ['doc',  \&do_ole,         'ripole'],
  ['cab',  \&do_cabextract,  'cabextract'],
  ['tnef', \&do_tnef_ext,    'tnef'],
  ['tnef', \&do_tnef],
# ['sit',  \&do_unstuff,     'unstuff'],  # broken/unsafe decoder
  ['exe',  \&do_executable, ['rar','unrar'], 'lha', ['arj','unarj'] ],
);
$sa_debug = 0;
# Set hostname.
$myhostname = "<domain>";

# Set listen IP/PORT.
$notify_method  = 'smtp:[127.0.0.1]:<port>';
$forward_method = 'smtp:[127.0.0.1]:<port>';

# Set default action.
# Available actions: D_PASS, D_BOUNCE, D_REJECT, D_DISCARD.
$final_virus_destiny      = D_DISCARD;
$final_banned_destiny     = D_PASS;
$final_spam_destiny       = D_PASS;
$final_bad_header_destiny = D_PASS;

@av_scanners = (

    #### http://www.clamav.net/
    ['ClamAV-clamd',
    \&ask_daemon, ["CONTSCAN {}\n", "/tmp/clamd.socket"],
    qr/\bOK$/, qr/\bFOUND$/,
    qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
);

@av_scanners_backup = (

    ### http://www.clamav.net/   - backs up clamd or Mail::ClamAV
    ['ClamAV-clamscan', 'clamscan',
    "--stdout --disable-summary -r --tempdir=$TEMPBASE {}", [0], [1],
    qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
);

# This policy will perform virus checks only.
#$interface_policy{'10026'} = 'VIRUSONLY';
#$policy_bank{'VIRUSONLY'} = { # mail from the pickup daemon
#    bypass_spam_checks_maps   => [1],  # don't spam-check this mail
#    bypass_banned_checks_maps => [1],  # don't banned-check this mail
#    bypass_header_checks_maps => [1],  # don't header-check this mail
#};

# Allow SASL authenticated users to bypass scanning. Typically SASL
# users already submit messages to the submission port (587) or the
# smtps port (465):
#$interface_policy{'10026'} = 'SASLBYPASS';
#$policy_bank{'SASLBYPASS'} = {  # mail from submission and smtps ports
#    bypass_spam_checks_maps   => [1],  # don't spam-check this mail
#    bypass_banned_checks_maps => [1],  # don't banned-check this mail
#    bypass_header_checks_maps => [1],  # don't header-check this mail
#};

# Apply to mails which coming from internal networks or authenticated
# roaming users.
# mail supposedly originating from our users
$policy_bank{'MYUSERS'} = {
    # declare that mail was submitted by our smtp client
    originating => 1,

    # enables disclaimer insertion if available
    allow_disclaimers => 1,

    # notify administrator of locally originating malware
    virus_admin_maps => ["root\@$mydomain"],
    spam_admin_maps  => ["root\@$mydomain"],
    warnbadhsender   => 0,

    # forward to a smtpd service providing DKIM signing service
    #forward_method => 'smtp:[127.0.0.1]:10027',

    # force MTA conversion to 7-bit (e.g. before DKIM signing)
    smtpd_discard_ehlo_keywords => ['8BITMIME'],

    # don't remove NOTIFY=SUCCESS option
    terminate_dsn_on_notify_success => 0,

    # don't perform spam/virus/header check.
    #bypass_spam_checks_maps => [1],
    #bypass_virus_checks_maps => [1],
    #bypass_header_checks_maps => [1],

    # allow sending any file names and types
    #bypass_banned_checks_maps => [1],
};

# regular incoming mail, originating from anywhere (usually from outside)
#$policy_bank{'EXT'} = {
#  # just use global settings, no special overrides
#};

#
# Port used to release quarantined mails.
#
$interface_policy{'9998'} = 'AM.PDP-INET';
$policy_bank{'AM.PDP-INET'} = {
    protocol => 'AM.PDP',       # select Amavis policy delegation protocol
    inet_acl => [qw( 127.0.0.1 [::1] )],    # restrict access to these IP addresses
    auth_required_release => 1,    # 0 - don't require secret_id for amavisd-release
    #log_level => 4,
    #always_bcc_by_ccat => {CC_CLEAN, 'admin@example.com'},
};

#########################
# Quarantine mails.
#

# Don't quarantine mails with bad header.
$bad_header_quarantine_method = undef;

# Quarantine SPAM.
#$spam_quarantine_to = 'spam-quarantine';

# Quarantine method. How to store mail body.
#   - 'local:spam-%i-%m', quarantine mail on local file system.
#   - 'sql:', quarantine mail in SQL server specified in @storage_sql_dsn.
#   - undef, do not quarantine mail.
#$spam_quarantine_method = 'sql:';
$spam_quarantine_method = undef;

#########################
# Quarantine VIRUS mails.
#
#$virus_quarantine_to     = 'virus-quarantine';
#$virus_quarantine_method = 'sql:';

#########################
# Quarantine BANNED mails.
#
$banned_files_quarantine_method = undef;
# Or quarantine banned mail to SQL server.
#$banned_files_quarantine_method = 'sql:';
#$banned_quarantine_to = 'banned-quarantine';

# Modify email subject, add '$sa_spam_subject_tag'.
#   0:  disable
#   1:  enable
$sa_spam_modifies_subj = 1;

# remove existing headers
#$remove_existing_x_scanned_headers= 0;
#$remove_existing_spam_headers = 0;

# Leave empty (undef) to add no header.
# Modify /usr/sbin/amavisd or /usr/sbin/amavisd-new file to add customize header in:
#
#   sub add_forwarding_header_edits_per_recip
#
#$X_HEADER_TAG = 'X-Virus-Scanned';
#$X_HEADER_LINE = "by amavisd at $myhostname";

# Notify virus sender?
#$warnvirussender = 0;

# Notify spam sender?
#$warnspamsender = 0;

# Notify sender of banned files?
$warnbannedsender = 0;

# Notify sender of syntactically invalid header containing non-ASCII characters?
$warnbadhsender = 0;

# Notify virus (or banned files) RECIPIENT?
#  (not very useful, but some policies demand it)
$warnvirusrecip = 0;
$warnbannedrecip = 0;

# Notify also non-local virus/banned recipients if $warn*recip is true?
#  (including those not matching local_domains*)
$warn_offsite = 0;

#$notify_sender_templ      = read_text('/var/amavis/notify_sender.txt');
#$notify_virus_sender_templ= read_text('/var/amavis/notify_virus_sender.txt');
#$notify_virus_admin_templ = read_text('/var/amavis/notify_virus_admin.txt');
#$notify_virus_recips_templ= read_text('/var/amavis/notify_virus_recips.txt');
#$notify_spam_sender_templ = read_text('/var/amavis/notify_spam_sender.txt');
#$notify_spam_admin_templ  = read_text('/var/amavis/notify_spam_admin.txt');

$sql_allow_8bit_address = 1;
$timestamp_fmt_mysql = 1;

# a string to prepend to Subject (for local recipients only) if mail could
# not be decoded or checked entirely, e.g. due to password-protected archives
#$undecipherable_subject_tag = '***UNCHECKED*** ';  # undef disables it
$undecipherable_subject_tag = undef;
# Hope to fix 'nested MAIL command' issue on high load server.
$smtp_connection_cache_enable = 0;

# The default set of header fields to be signed can be controlled
# by setting %signed_header_fields elements to true (to sign) or
# to false (not to sign). Keys must be in lowercase, e.g.:
# 0 -> off
# 1 -> on
$signed_header_fields{'received'} = 0;
$signed_header_fields{'to'} = 1;

# Make sure it sings all inbound mails, avoid error log like this:
# 'dkim: not signing inbound mail'.
$originating = 1;

# Add dkim_key here.
dkim_key("<domain>", "dkim", "/var/lib/dkim/<domain>.pem");
<repeated x times, one for each domain>

# Note that signing mail for subdomains with a key of a parent
# domain is treated by recipients as a third-party key, which
# may 'hold less merit' in their eyes. If one has a choice,
# it is better to publish a key for each domain (e.g. host1.a.cn)
# if mail is really coming from it. Sharing a pem file
# for multiple domains may be acceptable, so you don't need
# to generate a different key for each subdomain, but you
# do need to publish it in each subdomain. It is probably
# easier to avoid sending addresses like host1.a.cn and
# always use a parent domain (a.cn) in 'From:', thus
# avoiding the issue altogether.

# Add new dkim_key for other domain.
#dkim_key('Your_New_Domain_Name', 'dkim', 'Your_New_Pem_File');

@dkim_signature_options_bysender_maps = ( {
    # ------------------------------------
    # For domain: <domain>.
    # ------------------------------------
    # 'd' defaults to a domain of an author/sender address,
    # 's' defaults to whatever selector is offered by a matching key

    #'postmaster@<domain>' => { d => "<domain>", a => 'rsa-sha256', ttl =>  7*24*3600 },
    #"spam-reporter@<domain>"    => { d => "<domain>", a => 'rsa-sha256', ttl =>  7*24*3600 },

    # explicit 'd' forces a third-party signature on foreign (hosted) domains

<repeated x times for each domain i host>

    # ---- End domain: <domain>----

    # catchall defaults
    '.' => { a => 'rsa-sha256', c => 'relaxed/simple', ttl => 30*24*3600 },
} );
# ------------ Disclaimer Setting ---------------
# Uncomment this line to enable singing disclaimer in outgoing mails.
#$defang_maps_by_ccat{+CC_CATCHALL} = [ 'disclaimer' ];

# Program used to signing disclaimer in outgoing mails.
$altermime = '/usr/bin/altermime';

# Disclaimer in plain text formart.
@altermime_args_disclaimer = qw(--disclaimer=/etc/postfix/disclaimer/_OPTION_.txt --disclaimer-html=/etc/postfix/disclaimer/_OPTION_.txt --force-for-bad-html);

@disclaimer_options_bysender_maps = ({
    # Per-domain disclaimer setting: /etc/postfix/disclaimer/host1.iredmail.org.txt
    #'host1.iredmail.org' => 'host1.iredmail.org',

    # Sub-domain disclaimer setting: /etc/postfix/disclaimer/iredmail.org.txt
    #'.iredmail.org'      => 'iredmail.org',

    # Per-user disclaimer setting: /etc/postfix/disclaimer/boss.iredmail.org.txt
    #'boss@iredmail.org'  => 'boss.iredmail.org',

    # Catch-all disclaimer setting: /etc/postfix/disclaimer/default.txt
    '.' => 'default',
},);
# ------------ End Disclaimer Setting ---------------
@storage_sql_dsn = (
    ['DBI:mysql:database=<name>;host=127.0.0.1;port=<port>', '', ''],
);
# Uncomment below two lines to lookup virtual mail domains from MySQL database.
<omitted>
#);
# For Amavisd-new-2.7.0 and later versions. Placeholder '%d' is available in Amavisd-2.7.0+.
#$sql_select_policy = "SELECT domain FROM domain WHERE domain='%d'";

# For Amavisd-new-2.6.x.
# WARNING: IN() may cause MySQL lookup performance issue.
#$sql_select_policy = "SELECT domain FROM domain WHERE CONCAT('@', domain) IN (%k)";

1;  # insure a defined return