2532252>Jefferson em 17h08min de 28 de janeiro de 2019

2019-01-28T17:08:10Z

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= Introdução =

Configuração do Mailscanner

* Mailscanner
* Spam Assassin
* Clam AV
* Postfix

= Ambiente =

Em produção no cliente CIMCOP

Distributor ID: CentOS
Description: CentOS release 5.11 (Final)
Release: 5.11
Codename: Final

Em testes no ambiente Ouro Minas

Distributor ID: OracleServer
Description: Oracle Linux Server release 6.6
Release: 6.6
Codename: n/a

== Repositórios YUM configurados ==

base CentOS-5 - Base
epel Extra Packages for Enterprise Linux 5 - i386
extras CentOS-5 - Extras
rpmforge RHEL 5 - RPMforge.net - dag
updates CentOS-5 - Updates

= Pacotes para instalação =

Os scripts para instalação que são mencionados aqui ficam no servidor /opt/cit/work/MailGateway

Os pacotes devem ser baixados do site do fabricante dos softwares

* https://www.mailscanner.info/downloads/
* http://mailwatch.org/

# cd /opt/cit/work/MailGateway/

== Instalando o MailScanner ==

Com a versão MailScanner-4.85.2-3 a instalação para variantes do RedHat/CentOS foi otimizada para ser via yum

# cd 10-MailScanner/src/MailScanner-4.85.2-3
# service MailScanner stop
# bash install.sh

=== Atualizando o MailScanner.conf ===

MailScanner 4.85.2-3 - A atualização é feita automaticamente

# mv /etc/MailScanner /etc/MailScanner.BKP

Após a atualização com o RPM

# cd /etc/MailScanner
# upgrade_MailScanner_conf ../MailScanner-BKP/MailScanner.conf MailScanner.conf > MailScanner.new

# mv -f MailScanner.conf MailScanner.ORI
# mv -f MailScanner.new MailScanner.conf

== Configurando o postfix ==

Foram comentadas algumas linhas do script, como a que baixa o pacote do clam e SA, executado o script e realizadas algumas tarefas manualmente

service sendmail stop
chkconfig sendmail off

yum install postfix
cp -f main.cf main.cf-$(date +%j-%T)
cp -f transport transport-$(date +%j-%T)
cp -f header_checks header_checks-$(date +%j-%T)

cd /etc/postfix

* /etc/postfix/main.cf

myhostname = mail2.cimcop.com.br
mydomain = cimcop.com.br
mydestination = $myhostname, localhost.$mydomain, localhost
local_transport = local
mynetworks = 127.0.0.0/8, 10.25.10.0/24
relay_domains = hash:/etc/postfix/relay_domains
header_checks = regexp:/etc/postfix/header_checks

# Para ativas as restricoes de smtpd_client
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = cimcop.com.br
broken_sasl_auth_clients = yes

### HELO RESTRICTIONS ###
smtpd_helo_restrictions = permit_sasl_authenticated,
permit_mynetworks,
check_helo_access hash:/etc/postfix/helo_checks,
reject_non_fqdn_hostname,
reject_invalid_hostname,
permit

### SENDER RESTRICTIONS ###
smtpd_sender_restrictions = permit_mynetworks,
reject_non_fqdn_sender,
reject_unknown_sender_domain,
permit
### RECIPIENT RESTRICTIONS ###
smtpd_recipient_restrictions = permit_sasl_authenticated,
reject_unauth_pipelining,
reject_non_fqdn_recipient,
reject_unknown_recipient_domain,
permit_mynetworks,
reject_unauth_destination,
reject_unverified_recipient,
permit

#check_policy_service inet:127.0.0.1:10031,

transport_maps = hash:/etc/postfix/transport
message_size_limit = 20480000
mailbox_size_limit = 20480000

* vi /etc/postfix/master.cf

smtp inet n - n - - smtpd
submission inet n - n - - smtpd
pickup fifo n - n 60 1 pickup
cleanup unix n - n - 0 cleanup
qmgr fifo 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
proxywrite unix - - n - 1 proxymap
smtp unix - - n - - smtp
relay unix - - n - - smtp
-o smtp_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

Configuração adicional, notada em erros de mensagem de log

postconf -e alias_maps=hash:/etc/aliases

* vi /etc/postfix/transport
cimcop.com.br smtp:[10.25.10.1]

* vi /etc/postfix/header_checks
/^Received:/ HOLD

* vi /etc/postfix/relay_domains
cimcop.com.br OK

* vi /etc/postfix/helo_checks

cimcop.com.br REJECT You are not in machine
localhost REJECT You are not me

postmap header_checks
postmap transport
postmap relay_domains
postmap helo_checks

yum groupinstall "Ferramentas de Desenvolvimento"
chkconfig postfix off
chkconfig MailScanner on
chown -R postfix.postfix /var/spool/MailScanner/incoming
chown -R postfix.postfix /var/spool/MailScanner/quarantine
mkdir /var/spool/MailScanner/spamassassin
chown postfix.postfix /var/spool/MailScanner/spamassassin
yum install perl-Mail-SPF
yum install perl-Mail-SPF-Query

#rpm -e spamassassin

yum install perl-Parse-RecDescent
yum install perl-Inline perl-Inline-ASM perl-Inline-Awk perl-Inline-BC perl-Inline-Basic perl-Inline-CPP
yum install perl-Inline-Files perl-Inline-Filters perl-Inline-Python perl-Inline-Struct perl-Inline-TT
yum install zlib zlib-devel
yum install gcc-c++

Pacotes baixados pelo cpan

# cpan
cpan> force install Inline::Guile

Migrando o MailScanner.conf com as definições atuais

cd /etc/MailScanner
cp MailScanner.conf MailScanner.conf-NEW
scp root@10.25.10.9:/etc/MailScanner/MailScanner.conf MailScanner.conf-ATUAL

upgrade_MailScanner_conf MailScanner.conf-ATUAL MailScanner.conf-NEW > MailScanner.new
mv MailScanner.new MailScanner.conf

== Razor-agents-sdk ==

O Razor agentes já vem instalado com a versão 4.85, basta liberar o firewall, veja a seguir

#bunzip2 razor-agents-sdk-2.07.tar.bz2
[ -d razor-agents-sdk-2.07 ] && rm -rf razor-agents-sdk-2.07
tar -xvf razor-agents-sdk-2.07.tar
cd razor-agents-sdk-2.07
perl Makefile.PL
make
make test
make install
[ -d razor-agents-sdk-2.07 ] && rm -rf razor-agents-sdk-2.07

== Razor-agents ==

Razor Agents vem instalado no pacote RPM com a versão 4.85 (perl-Razor-Agent-2.85-6.el6.x86_64), liberar a porta do firewall da seguinte forma (shorewall)

* /etc/shorewall/rules

ACCEPT fw net tcp 2703

#bunzip2 razor-agents-2.84.tar.bz2

[ -d razor-agents-2.84 ] && rm -rf razor-agents-2.84
tar -xvf razor-agents-2.84.tar
cd razor-agents-2.84
perl Makefile.PL
make
make test
make install
[ -d razor-agents-2.84 ] && rm -rf razor-agents-2.84

== dcc ==

O DCC já vem instalado com a versão 4.85

yum install spamass-milter-postfix (Isto reinstala o spamassassin do repositório)

cd src
[ -d dcc-1.3.104 ] && rm -rf dcc-1.3.104
[ -d dcc-1.3.155 ] && rm -rf dcc-1.3.155

wget http://www.dcc-servers.net/dcc/source/dcc.tar.Z
gunzip dcc.tar.Z
tar -xvf dcc.tar

cd dcc-1.3.155
./configure --disable-dccm
make install
[ -d dcc-1.3.155 ] && rm -rf dcc-1.3.155

== Integrando o MTA postfix com o MailScanner ==

* vi /etc/MailScanner/MailScanner.conf

Run As User = postfix
Run As Group = postfix
Incoming Queue Dir = /var/spool/postfix/hold
Outgoing Queue Dir = /var/spool/postfix/incoming
MTA = postfix

chown postfix.postfix /var/spool/postfix
chown -R postfix.postfix /var/spool/MailScanner/incoming
chown -R postfix.postfix /var/spool/MailScanner/incoming

chown -R postfix.postfix /var/spool/MailScanner/quarantine
chown -R postfix.postfix /var/spool/MailScanner/quarantine

= MailWatch =

Transformando os scripts em wiki

BASE=$(pwd)
VER="1.2.0-beta-5"

cd ${BASE}
gunzip -dc mailwatch-${VER}.tar.gz | tar -xvf -
cd mailwatch-${VER}

Dependendo da versão escolher entre o mysql-server ou mariaadb-server

yum install gd php-gd mariadb-server php-mysql

* vi /etc/php.ini

short_open_tag On
safe_mode Off
register_globals Off
magic_quotes_gpc Off
magic_quotes_runtime Off
session.auto_start 0

Setup da base de dados do MySQL/MariaDB

service mysqld start
chkconfig mysqld on
USER=mailwath
PASS=mailwath

cd ${BASE}/mailwatch-${VER}
mysql -uroot -pcancella < create.sql

mysql -uroot -pcancella <<EOF
GRANT ALL ON mailscanner.* TO mailwatch@localhost IDENTIFIED BY 'mailwatch';
GRANT FILE ON *.* TO mailwatch@localhost IDENTIFIED BY 'mailwatch';
FLUSH PRIVILEGES;
EOF

mysql -umailwatch -pmailwatch mailscanner<<EOF
INSERT INTO users VALUES ('admin',md5('asminasgerais'),'Administracao via WEB','A','0','0','0','0','NULL');
EOF

cd MailScanner_perl_scripts
cat MailWatch.pm | sed -e "s/'root'/'mailwatch'/" -e "s/= ''/= 'mailwatch'/" > /usr/lib/MailScanner/MailScanner/CustomFunctions/MailWatch.pm

cd ../..
mv mailwatch-${VER}/mailscanner /var/www/html/mailscanner

cd /var/www/html/mailscanner
chown root:apache images
chmod ug+rwx images
chown root:apache images/cache
chmod ug+rwx images/cache
[ ! -d temp ] && mkdir temp
chown apache:apache temp

cp conf.php.example conf.php

* vi conf.php
...
define('DB_TYPE', 'mysql');
define('DB_USER', 'mailwatch');
define('DB_PASS', 'mailwatch');
define('DB_HOST', 'localhost');
define('DB_NAME', 'mailscanner');
...
define('QUARANTINE_USE_FLAG', true);

cd /opt/cit/work/MailWatch

== Ajustando o ambiente do cron do MailWatch ==

Ver o README de $MAILWATH/tools/Cron_Jobs

-------------------------------------------
Database cleanup of maillog records
-------------------------------------------
db_clean.php
add to /etc/cron.daily/
You need to edit conf.php the RECORD_DAYS_TO_KEEP definition.
You need to edit the db_clean.php to reflect the location of the functions.php file

--------------------------------------------
Quarantine Maintenance
--------------------------------------------
Remove the clean.quarantine
quarantine_maint.php
add to /etc/cron.daily/
You need to edit conf.php the QUARANTINE_DAYS_TO_KEEP definition.
You need to edit the quarantine_maint.php to reflect the location of the functions.php file

--------------------------------------------
Quarantine Report
--------------------------------------------
quarantine_report.php
add to /etc/cron.daily
You will need to edit the quarantine_report.php to reflect the location of the functions.php file

--------------------------------------------
MailScanner Rule Editor
--------------------------------------------
msre_reload.crond
See the instructions in tools/MailScanner_rule_editor/INSTALL
Add to /etc/cron.d when you have properly configured and installed msre_reload.sh

* vi /etc/MailScanner/MailScanner.conf

Always Looked Up Last = &MailWatchLogging
Quarantine Whole Message = yes
Quarantine User = root
Quarantine Group = apache
Quarantine Permissions = 0660/
Is Definitely Not Spam = &SQLWhitelist
Is Definitely Spam = &SQLBlacklist

cp mailwatch-${VER}/MailScanner_perl_scripts/SQLBlackWhiteList.pm /usr/lib/MailScanner/MailScanner/CustomFunctions/SQLBlackWhiteList.pm

* vi /usr/lib/MailScanner/MailScanner/CustomFunctions/SQLBlackWhiteList.pm

my($db_name) = 'mailscanner';
my($db_host) = 'localhost';
my($db_user) = 'mailwatch';
my($db_pass) = 'mailwatch';

echo "bayes_path /etc/MailScanner/bayes/bayes" >> /etc/MailScanner/spam.assassin.prefs.conf
echo "bayes_file_mode 0660" >> /etc/MailScanner/spam.assassin.prefs.conf

mkdir /etc/MailScanner/bayes
chown root:apache /etc/MailScanner/bayes
chmod g+rws /etc/MailScanner/bayes

spamassassin -D -p /etc/MailScanner/spam.assassin.prefs.conf --lint

= Autenticação com o saslauthd =

Dependências

cyrus-sasl-plain-2.1.22-7.el5_8.1
cyrus-sasl-md5-2.1.22-7.el5_8.1
cyrus-sasl-lib-2.1.22-7.el5_8.1
cyrus-sasl-2.1.22-7.el5_8.1

* vi /etc/sysconfig/saslauthd

SOCKETDIR=/var/run/saslauthd
MECH=rimap
FLAGS=" -r -O 10.25.10.1"

Ativar o serviço

service saslauthd start
chkconfig saslauthd on

Testando o serviço

# testsaslauthd -u danton@cimcop.com.br -p cancella
0: OK "Success."

* vi /etc/sasl2/smtpd.conf

pwcheck_method: saslauthd
mech_list: plain login

= Testando os serviços =

Monitore o serviço e verifique possíveis erros no log

service MailScanner restart; tail -f /var/log/maillog

Acesso a interface do mailwatch

http://mail2.cimcop.com.br/mailscanner

= Ajustes de configuração do MailScanner =

Alguns ajustes pós implementação do 4.85

== Spamassassin ==

EXPERIMENTAL - 05/02/2016 11:02

# vi /etc/mail/spamassassin/configserver.cf
score URIBL_SBL 5.0
score URIBL_AB_SURBL 5.0
score URIBL_OB_SURBL 5.0
score URIBL_PH_SURBL 5.0
score URIBL_SC_SURBL 5.0
score URIBL_WS_SURBL 5.0
score URIBL_JP_SURBL 5.0

Inserir as regras Cancella em /etc/mail/spamassassin/local.cf

# Regras locais - CI
header LOCAL_HEADER_PFIND ALL =~ /pfind/i
header LOCAL_HEADER_BULK ALL =~ /Precedence:.*bulk/i
header LOCAL_HEADER_UNSUBSCRIB ALL =~ /unsubscrib/i

score LOCAL_HEADER_PFIND 6.0
score LOCAL_HEADER_BULK 6.0
score LOCAL_HEADER_UNSUBSCRIB 6.0

describe LOCAL_HEADER_PFIND Teste Cancella
describe LOCAL_HEADER_BULK Teste Cancella
describe LOCAL_HEADER_UNSUBSCRIB Teste Cancella

== DCC/Razor ==

perldoc Mail::SpamAssassin::Plugin::DCC

DCC - out-bound UDP port 6277
DCC - out-bound TCP port 587 (for reporting spam)
Razor - out-bound TCP port 2703

cpan -i Razor2::Client::Agent

spamassassin --lint

Teste

cdcc info

=== Razor2 ===

Avaliar estes procediemntos (Zimbra) para a solucao com o MailScanner

# yum install razor
# yum install perl-Razor-Agent

Criar pastas e dar permissões para o Zimbra:

# mkdir /opt/zimbra/amavisd/.razor; chown -Rf zimbra:zimbra /opt/zimbra/amavisd/.razor

Criar a conta Razor (acessar como usuário Zimbra):

$ razor-admin -home=/opt/zimbra/amavisd/.razor -create
$ razor-admin -home=/opt/zimbra/amavisd/.razor -discover
$ razor-admin -home=/opt/zimbra/amavisd/.razor -register

Habilitar o plugin:

# vim /opt/zimbra/conf/spamassassin/v310.pre

Descomentar a linha:

loadplugin Mail::SpamAssassin::Plugin::Razor2

Para checar se o Razor startou com o Zimbra, abra um terminal e reinicie o amavis:

# zmamavisdctl restart

Enquanto no outro terminal verifique o log do Zimbra:

# tail -f /var/log/zimbra.log

== Pyzor ==

* Configuração do firewall

ACCEPT net fw udp 24441 # Pyzor (Danton)
ACCEPT net fw tcp 24441 # Pyzor (Danton)
ACCEPT fw net udp 24441 # Pyzor (Danton)
ACCEPT fw net tcp 24441 # Pyzor (Danton)

Executar os passos abaixo

pyzor --homedir /etc/mail/spamassassin discover
echo "test" | spamassassin -D pyzor 2>&1 | less

Inserir em /etc/mail/spamassassin/local.cf

pyzor_options --homedir /etc/mail/spamassassin

Verificando a conectividade

# pyzor ping

O check não funcionou na última instalação

# pyzor check

== MailScanner -D --lint ==

# chmod 777 /var/spool/MailScanner/incoming/

Não localizei uma solução para o erro abaixo o ID 89 é do postfix

Can't set GID 89 at /usr/sbin/MailScanner line 1542.

Verificar o tamanho/número de arquivos no Spamassassin-Temp

== MailWatch ==

MailWatch não exibe informações do Bayes Database Information

# /usr/local/bin/sa-learn --force-expire
bayes: synced databases from journal in 1 seconds: 2159 unique entries (4137 total entries)

== Quarantine ==

Parâmetros para manter as mensagens de quarentena legíveis.

Quarantine Dir = /var/spool/MailScanner/quarantine
Quarantine Whole Message = yes
Quarantine Whole Messages As Queue Files = yes
Required SpamAssassin Score = 3
#
# What to do with spam
# --------------------
# store/delete/forward....
Spam Actions = store
High Scoring Spam Actions = store

Para recuperação de mensagem em quarentena

* /var/www/html/mailscanner/conf.php
define('QUARANTINE_MAIL_HOST', 'mail2.ourominas.com.br');
define('QUARANTINE_FROM_ADDR', 'release@ourominas.com.br');
define('QUARANTINE_USE_SENDMAIL', true);
define('QUARANTINE_SENDMAIL_PATH', '/usr/sbin/sendmail');

* /etc/MailScanner/rules/spam.whitelist.rules
From: release@ourominas.com.br yes

* Inserir o email release@ourominas.com.br na White List do MailWatch

= Configuração da verificação de SPF =

Contribuição do Sr.Marco Brandão

== Pré requisitos ==

Perl 5.6
NetAddr-IP 4
Mail::SPF (not Mail-SPF-Query) version 2.006 or later
Sys::Hostname::Long

== Instalação dos pacotes necessários ==

yum install perl-Mail-SPF perl-NetAddr-IP perl-Sys-Hostname-Long
wget https://launchpad.net/postfix-policyd-spf-perl/trunk/release2.010/+download/postfix-policyd-spf-perl-2.010.tar.gz
tar -xzvf postfix-policyd-spf-perl-2.010.tar.gz
cd postfix-policyd-spf-perl-2.010
cp postfix-policyd-spf-perl /usr/local/lib/policyd-spf-perl

Teste do Mail::SPF, tive problemas com o Oracle Linux, veja abaixo em Problemas e soluções

perldoc Mail::SPF

== Ajustes na configuração do postfix ==

* /etc/postfix/main.cf

...
policy unix - n n - 0 spawn
user=nobody argv=/usr/local/lib/policyd-spf-perl
...

* /etc/postfix/master.cf

...
'''policy_time_limit = 3600'''
...
### RECIPIENT RESTRICTIONS ###
smtpd_recipient_restrictions = permit_sasl_authenticated,
reject_unauth_pipelining,
reject_non_fqdn_recipient,
reject_unknown_recipient_domain,
permit_mynetworks,
reject_unauth_destination,
reject_unverified_recipient,
'''check_policy_service unix:private/policy''',
permit,
...

== Reiniciando o serviço e verificando a funcionalidade ==

# service MailScanner restart

Serviços de log do linux

# tail -f /var/log/maillog | grep policy

Via MailScanner, abra o pacote no cabeçalho terá indicações de verificação SPF

== Problemas e soluções ==

No Oracle Linux mesmo com o pacote perl-Mail-SPF instalado o utilitário não estava encontrando o pacote Mail::SPF, forcei a instalação com o cpan

# cpan -i -f Mail::SPF

= Postfix Greylisting Policy Server =

Implementação do postgrey para GreyList policy server, contribuição do Sr.Marco Brandão

== Instalação dos pacotes e dependências ==

Nesta implementação, Oracle Linux, instalei os pacotes do postgrey direto do yum e suas dependências, identifiquei que é a mesma vertente utilizada pelo marco do site http://postgrey.schweikert.ch/ oferecido no rpmforge.
Neste pacote já vem com o script de start/stop padrão LSB

# yum install postgrey

Tive problemas com o Oracle Linux em alguns dos pacotes abaixo, veja Problemas e soluções abaixo

Installing:
postgrey noarch 1.34-1.el5.rf rpmforge
Installing for dependencies:
perl-BerkeleyDB x86_64 0.43-1.el5.rf rpmforge
perl-IO-Multiplex noarch 1.13-1.el5.rf rpmforge
perl-Net-Server noarch 0.99-1.el5.rf rpmforge
perl-Parse-Syslog noarch 1.10-1.el5.rf rpmforge

== Iniciando o serviço e verificando a funcionalidade ==

Veja a em Problemas e soluções os ajustes que tive que fazer no script de start/stop, tanks Marco Brandão. Veja em Problemas e soluções

# chkconfig --add postgrey
# chkconfig postgrey on
# service postgrey start

== Configurando o postfix ==

* /etc/postfix/main.cf

...
smtpd_recipient_restrictions = permit_sasl_authenticated,
reject_invalid_hostname,
reject_non_fqdn_hostname,
reject_non_fqdn_sender,
reject_non_fqdn_recipient,
reject_unauth_pipelining,
reject_unknown_recipient_domain,
permit_mynetworks,
reject_unauth_destination,
check_recipient_access hash:/etc/postfix/verify_domains,
reject_unverified_recipient,
check_policy_service unix:private/policy,
'''check_policy_service unix:postgrey/socket''',
permit
...

== Reiniciando o MailScanner e verificando a funcionalidade ==

# service MailScanner restart

Verificando a mensagem sendo greylisted

# tail -f /var/log/maillog | grep Greylisted

Verificando as mensagens liberadas pelo postgrey

# tail -f /var/log/maillog | grep postgrey

Verificando as mensagens que estão em greylist e ainda não tiveram um retry

# cat /var/log/maillog | /usr/sbin/postgreyreport --delay=300
# cat /var/log/maillog | /usr/local/sbin/postgreyreport --delay=300 --greylist-text="Policy restrictions; Greylist in action; try later"

Verificando os top 20 endereços de origem que estão aguardando o retry

# cat /var/log/maillog | postgreyreport | awk '{print $1}' | sort | uniq -c | sort -nr | head -n20
# cat /var/log/maillog | postgreyreport --greylist-text="Policy restrictions; Greylist in action; try later" | awk '{print $1}' | sort | uniq -c | sort -nr | head -n20

Verificando os top 20 destinatários que estão aguardando um retry para receber mensagens

# cat /var/log/maillog | postgreyreport | awk '{print $4}' | sort | uniq -c | sort -nr | head -n20
# cat /var/log/maillog | postgreyreport --greylist-text="Policy restrictions; Greylist in action; try later" | awk '{print $4}' | sort | uniq -c | sort -nr | head -n20

== Tratamento de whitelist ==

Sintaxe do daemon

--whitelist-clients=FILE default: /etc/postfix/postgrey_whitelist_clients
--whitelist-recipients=FILE default: /etc/postfix/postgrey_whitelist_recipients
--auto-whitelist-clients=N whitelist host after first successful delivery
N is the minimal count of mails before a client is
whitelisted (turned on by default with value 5)
specify N=0 to disable.

* vi /etc/postfix/postgrey_whitelist_recipients
postmaster@
abuse@
secretaria@

== Problemas e soluções ==

=== Problema com o Oracle Linux ===

Tive problemas com o pacotes do perl Oracle Linux, tive que fazer a instalação direto do CPAN.

cpan -i Net::Server
cpan -i IO::Multiplex
cpan -i BerkeleyDB
cpan -i Parse::Syslog

=== Configurando o postgrey para usar o socket unix ===

* /etc/init.d/postgrey
...
OPTIONS="--unix=/var/spool/postfix/postgrey/socket --delay=60"
...

Reinicie o serviço e confira se esta sendo executado

# service postgrey restart; tail -f /var/log/maillog

[[Category: LINUX]]
[[Category: MailScanner]]

Implementação de filtro de borda com MailScanner - Histórico de revisão

imported>Admin: uma edição

2532252>Jefferson em 17h08min de 28 de janeiro de 2019

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