Sample /etc/amavisd.conf file
use strict;
$max_servers = 2; # number of pre-forked children (2..15 is common)
$daemon_user = 'amavis'; # (no default; customary: vscan or amavis)
$daemon_group = 'amavis'; # (no default; customary: vscan or amavis)
$mydomain = 'yourdomain.tld'; # a convenient default for other settings
$MYHOME = '/var/amavisd'; # a convenient default for other settings
$TEMPBASE = "$MYHOME/tmp"; # working directory, needs to be created manually
$ENV{TMPDIR} = $TEMPBASE; # environment variable TMPDIR
$QUARANTINEDIR = '/var/virusmails';
# Blowfish encryption key file (optional)
$key_file = "$MYHOME/maia.key";
# $daemon_chroot_dir = $MYHOME; # chroot directory or undef
# $db_home = "$MYHOME/db";
# $helpers_home = "$MYHOME/var"; # prefer $MYHOME clean and owned by root?
# $pid_file = "$MYHOME/var/amavisd.pid";
# $lock_file = "$MYHOME/var/amavisd.lock";
#NOTE: create directories $MYHOME/tmp, $MYHOME/var, $MYHOME/db manually
@local_domains_maps = ( [".$mydomain"] );
# @mynetworks = qw( 127.0.0.0/8 );
$log_level = 0; # verbosity 0..5
$log_recip_templ = undef; # disable by-recipient level-0 log entries
$LOGFILE = "$MYHOME/amavis.log";
$DO_SYSLOG = 0; # log via syslogd (preferred)
$SYSLOG_LEVEL = 'mail.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
$inet_socket_port = 10024; # listen on this local TCP port(s) (see $protocol)
$sa_tag_level_deflt = -999; # add spam info headers if at, or above that level
$sa_tag2_level_deflt = 5.0; # add 'spam detected' headers at that level
$sa_kill_level_deflt = 5.0; # triggers spam evasive actions
$sa_dsn_cutoff_level = 10; # spam level beyond which a DSN is not sent
$sa_mail_body_size_limit = 256*1024; # don't waste time on SA if mail is larger
$sa_local_tests_only = 0; # only tests which do not require internet access?
$sa_auto_whitelist = 0; # turn on AWL in SA 2.63 or older (irrelevant
# for SA 3.0, cf option is 'use_auto_whitelist')
@lookup_sql_dsn = ( ['DBI:mysql:maia:localhost', 'amavis', 'password'] );
$virus_admin = undef; # notifications recip.
$mailfrom_notify_admin = "virusalert\@$mydomain"; # notifications sender
$mailfrom_notify_recip = "virusalert\@$mydomain"; # notifications sender
$mailfrom_notify_spamadmin = "spam.police\@$mydomain"; # notifications sender
$mailfrom_to_quarantine = ''; # null return path; uses original sender if undef
@addr_extension_virus_maps = ('virus');
@addr_extension_spam_maps = ('spam');
@addr_extension_banned_maps = ('banned');
@addr_extension_bad_header_maps = ('badh');
# $recipient_delimiter = '+'; # undef disables address extensions altogether
# when enabling addr extensions do also Postfix/main.cf: recipient_delimiter=+
$recipient_delimiter = undef;
$path = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/usr/bin:/bin';
$file = '/usr/bin/file'; # file(1) utility; use recent versions
$gzip = 'gzip';
$bzip2 = 'bzip2';
$lzop = 'lzop';
$rpm2cpio = ['rpm2cpio.pl','rpm2cpio'];
$cabextract = 'cabextract';
$uncompress = ['uncompress', 'gzip -d', 'zcat'];
$unfreeze = ['unfreeze', 'freeze -d', 'melt', 'fcat'];
$arc = ['nomarch', 'arc'];
$unarj = ['arj', 'unarj'];
#$unrar = ['rar', 'unrar'];
$zoo = 'zoo';
$lha = 'lha';
$cpio = ['gcpio','cpio'];
$ar = 'ar';
$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 = 1; # MIME-wrap passed mail containing banned name
$myhostname = 'host.domain.tld'; # 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_DISCARD;
$final_spam_destiny = D_DISCARD;
$final_bad_header_destiny = D_DISCARD;
$X_HEADER_TAG = 'X-Virus-Scanned';
$X_HEADER_LINE = "Maia Mailguard 1.0.0";
@viruses_that_fake_sender_maps = (new_RE(
[qr'\bEICAR\b'i => 0], # av test pattern name
[qr'^(WM97|OF97|Joke\.)'i => 0], # adjust names to match your AV scanner
[qr/.*/ => 1], # true for everything else
));
@keep_decoded_original_maps = (new_RE(
# qr'^MAIL$', # retain full original message for virus checking (can be slow)
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
));
$banned_filename_re = new_RE(
# qr'^UNDECIPHERABLE$', # is or contains any undecipherable components
# block certain double extensions anywhere in the base name
qr'\.[^./]*\.(exe|vbs|pif|scr|bat|cmd|com|cpl|dll)\.?$'i,
# qr'[{}]', # curly braces in names (serve as Class ID extensions - CLSID)
qr'^application/x-msdownload$'i, # block these MIME types
qr'^application/x-msdos-program$'i,
qr'^application/hta$'i,
qr'^message/partial$'i, qr'^message/external-body$'i, # rfc2046 MIME types
# [ qr'^\.(Z|gz|bz2)$' => 0 ], # allow any type in Unix-compressed
# [ qr'^\.(rpm|cpio|tar)$' => 0 ], # allow any type in Unix archives
# [ qr'^\.(zip|rar|arc|arj|zoo)$'=> 0 ], # allow any type within such archives
# qr'.\.(exe|vbs|pif|scr|bat|cmd|com|cpl)$'i, # banned extension - basic
qr'.\.(ade|adp|app|bas|bat|chm|cmd|com|cpl|crt|exe|fxp|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|wsc|wsf|wsh)$'ix, # banned ext - long
# qr'.\.(mim|b64|bhx|hqx|xxe|uu|uue)$'i, # banned extension - WinZip vulnerab.
qr'^\.(exe-ms)$', # banned file(1) types
qr'^\.(exe|lha|cab|dll)$', # banned file(1) types
);
@score_sender_maps = ({}); # should be empty if using Maia Mailguard
# See https://secure.renaissoft.com/maia/wiki/VirusScannerConfig
# for more virus scanner definitions.
@av_scanners = (
### http://www.clamav.net/
['ClamAV-clamd',
\&ask_daemon, ["CONTSCAN {}\n", "/var/amavisd/clamd.sock"],
qr/\bOK$/, qr/\bFOUND$/,
qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
# NOTE: run clamd under the same user as amavisd; match the socket
# name (LocalSocket) in clamav.conf to the socket name in this entry
# When running chrooted one may prefer: ["CONTSCAN {}\n","$MYHOME/clamd"],
);
# See https://secure.renaissoft.com/maia/wiki/VirusScannerConfig
# for more virus scanner definitions.
@av_scanners_backup = (
### http://www.clamav.net/ - backs up clamd or Mail::ClamAV
['ClamAV-clamscan', 'clamscan',
"--stdout --disable-summary -r --tempdir=$TEMPBASE {}", [0], [1],
qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
);
1; # insure a defined return
NOTE: You can find more virus scanner definitions to add to the @av_scanners and @av_scanners_backup settings here.
