Topic: docx,xlsx,pptx attachments block error
I'm using iRedMail 0.5.1 postfix mysql in a debian 5.0.4 x64.
we have a problem, the amavis are blocking docx, xlsx ... files in attachments (and we are having "some problems" with that). I look the config file but I don't know wath is the problem in configuration.
message in mail.log:
Mar 21 08:43:23 localhost amavis[28300]: (28300-16) Blocked BANNED (multipart/mixed | application/vnd.openxmlformats-officedocument.presentationml.presentation,.zip,=?iso-8859-1?Q?Proposta_Processo_de_Devolu=E7=E3o_e_Canhotos.__(8).pptx?=,Proposta Processo de Devolu\347\343o e Canhotos. (8).pptx | .doc,ppt/embeddings/oleObject2.bin), LOCAL [216.82.242.179] [200.142.207.241] <francieli.baby@brf.com> -> <andreia@transardo.com.br>, quarantine: T/banned-TaaxZcYICDWC, Message-ID: <3DA0413F5D17CD46A3E56CD1B4B000E607486F18@HOR63.perdigao.com.br>, mail_id: TaaxZcYICDWC, Hits: -, size: 890924, 350 ms
I try this:
http://www.clearfoundation.com/componen … /id,15627/
but doesn't work.
my /etc/amavis/50-user file:
use strict;
#
# Place your configuration directives here. They will override those in
# earlier files.
#
# See /usr/share/doc/amavisd-new/ for documentation and examples of
# the directives you can use in this file
#
#------------ Do not modify anything below this line -------------
#{1}
chomp($mydomain = "www.transardo.com.br");
@local_domains_maps = ['www.transardo.com.br', 'transardo.com.br'];
@mynetworks = qw( 127.0.0.0/8 [::1] [FE80::]/10 [FEC0::]/10
10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 );
# Enable virus check.
@bypass_virus_checks_maps = (
\%bypass_virus_checks,
\@bypass_virus_checks_acl,
$bypass_virus_checks_re,
);
# Enable spam check.
@bypass_spam_checks_maps = (
\%bypass_spam_checks,
\@bypass_spam_checks_acl,
$bypass_spam_checks_re,
);
$banned_filename_re = new_RE(
qr'.\.(bat|exe|scr|bin|com|cmd|avi|divx|xvid|mpg|mpeg|mp3|mp4|ogg|mid|midi|wav|wmv)$'i,
qr'^\.(exe)$'i,
);
$virus_admin = "root\@$mydomain"; # due to D_DISCARD default
$mailfrom_notify_admin = "root\@$mydomain";
$mailfrom_notify_recip = "root\@$mydomain";
$mailfrom_notify_spamadmin = "root\@$mydomain";
# Mail notify.
$mailfrom_notify_admin = "root\@$mydomain"; # notifications sender
$mailfrom_notify_recip = "root\@$mydomain"; # notifications sender
$mailfrom_notify_spamadmin = "root\@$mydomain"; # notifications sender
$mailfrom_to_quarantine = ''; # null return path; uses original sender if undef
# Disable defang banned mail.
$defang_banned = 0; # MIME-wrap passed mail containing banned name
$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
};
$policy_bank{'ORIGINATING'} = { # mail supposedly originating from our users
originating => 1, # declare that mail was submitted by our smtp client
allow_disclaimers => 1, # enables disclaimer insertion if available
# notify administrator of locally originating malware
virus_admin_maps => ["root\@$mydomain"],
spam_admin_maps => ["root\@transardo.com"],
warnbadhsender => 1,
# 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'],
bypass_banned_checks_maps => [1], # allow sending any file names and types
terminate_dsn_on_notify_success => 0, # don't remove NOTIFY=SUCCESS option
};
# Set listen IP/PORT.
$notify_method = 'smtp:[127.0.0.1]:10025';
$forward_method = 'smtp:[127.0.0.1]:10025';
# Set default action.
$final_virus_destiny = D_DISCARD;
$final_banned_destiny = D_REJECT;
$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= {}", [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';
#$policy_bank{'SASLBYPASS'} = { # mail from submission and smtps ports
# bypass_spam_checks_maps => [1], # don't spam-check this mail
# bypass_banned_checks_maps => [1], # don't banned-check this mail
# bypass_header_checks_maps => [1], # don't header-check this mail
#};
# SpamAssassin debugging. Default if off(0).
# Note: '$log_level' variable above is required for SA debug.
$log_level = 0; # verbosity 0..5, -d
$sa_debug = 0;
# Modify email subject, add '$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 = 1;
# 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*)
$warn_offsite = 1;
#$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');
# 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("transardo.com.br", "dkim", "/var/lib/dkim/transardo.com.br.pem");
# 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.
#dkim_key("host1.transardo.com.br", "dkim", "/var/lib/dkim/transardo.com.br.pem");
#dkim_key("host3.transardo.com.br", "dkim", "/var/lib/dkim/transardo.com.br.pem");
# 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: transardo.com.br.
# ------------------------------------
# 'd' defaults to a domain of an author/sender address,
# 's' defaults to whatever selector is offered by a matching key
'postmaster@transardo.com.br' => { d => "transardo.com.br", a => 'rsa-sha256', ttl => 7*24*3600 },
#"spam-reporter@transardo.com.br" => { d => "transardo.com.br", a => 'rsa-sha256', ttl => 7*24*3600 },
# explicit 'd' forces a third-party signature on foreign (hosted) domains
"transardo.com.br" => { d => "transardo.com.br", a => 'rsa-sha256', ttl => 10*24*3600 },
#"host1.transardo.com.br" => { d => "host1.transardo.com.br", a => 'rsa-sha256', ttl => 10*24*3600 },
#"host2.transardo.com.br" => { d => "host2.transardo.com.br", a => 'rsa-sha256', ttl => 10*24*3600 },
# ---- End domain: transardo.com.br ----
# catchall defaults
'.' => { a => 'rsa-sha256', c => 'relaxed/simple', ttl => 30*24*3600 },
} );
$enable_dkim_verification = 1; # enable DKIM signatures verification
$enable_dkim_signing = 1; # load DKIM signing code, keys defined by dkim_key
# ------------ 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_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 ---------------
1; # insure a defined return
/etc/amavis/conf.d/override.conf
$banned_filename_re = new_RE(
[qr'(\.xlsx|\.docx|\.pptx)$' => 0],
);
If someone can help me ...
tks
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