Iredmail

página do projeto

• http://www.iredmail.org/

pré-configuração

em /etc/apt/sources.list adicione

echo deb http://ftp.us.debian.org/debian wheezy main non-free contrib > /etc/apt/sources.list
echo deb http://security.debian.org/ wheezy/updates main non-free contrib >> /etc/apt/sources.list

hostname

echo mail > /etc/hostname
hostname -F /etc/hostname

em /etc/hosts

127.0.0.1   mail.quijaua.net mail localhost localhost.localdomain

criando swap

Se acaso estiver usando DigitalOcean crie uma swap do tamanho da memória ram ou o dobro

dd if=/dev/zero of=/swapfile bs=1024 count=512k
mkswap /swapfile
swapon /swapfile
echo /swapfile none swap sw 0 0  >> /etc/fstab
echo 10 | tee /proc/sys/vm/swappiness
echo vm.swappiness = 10 | tee -a /etc/sysctl.conf
chown root:root /swapfile
chmod 0600 /swapfile

instalando

cd /usr/src
apt-get update
apt-get upgrade
apt-get install -y dialog bzip2
wget https://bitbucket.org/zhb/iredmail/downloads/iRedMail-0.8.6.tar.bz2
tar jxvf iRedMail-0.8.6.tar.bz2
cd iRedMail-0.8.6
bash iRedMail.sh
apt-get install postgrey

removendo iredmail

wget http://iredmail.googlecode.com/hg/extra/clear_iredmail.sh
mv clear_iredmail.sh tools/ && cd tools/
bash clear_iredmail.sh
rm -f /usr/src/iRedMail-0.6.1/./.iRedMail.installation.status

testar antivirus

• http://pt.wikipedia.org/wiki/EICAR_%28arquivo_de_teste%29
• http://www.eicar.org/anti_virus_test_file.htm

permissões

• http://www.iredmail.org/wiki/index.php?title=Addition/Protect.Configure.Files

dkim

• http://www.myiptest.com/staticpages/index.php/DomainKeys-DKIM-SPF-Validator-test
• http://code.google.com/p/iredmail/wiki/DNS_DKIM

aumentar tamanho de arquivo anexo

o padrão é 10M, nesse caso estou aumentando para 32M

postconf -e 'message_size_limit = 268435456'
sed -i 's/post_max_size\ =\ 12M/post_max_size\ =\ 32M/g' /etc/php5/apache2/php.ini
sed -i 's/upload_max_filesize\ =\ 10M/upload_max_filesize\ =\ 32M/g' /etc/php5/apache2/php.ini
/etc/init.d/apache2 restart
/etc/init.d/postfix restart

para ver valor atual

# postconf | grep mailbox_size_limit
# postconf | grep message_size_limit

para ver o valor padrão

# postconf -d | grep mailbox_size_limit
# postconf -d | grep message_size_limit

reiniciar todos os serviços

for i in rsyslog nginx postfix mysql dovecot amavis clamav-daemon clamav-freshclam cron iredapd iptables; do /etc/init.d/${i} restart; done

Referências

• http://sogoth.com/?tag=postfix-message_size_limit
• http://www.iredmail.org/forum/topic778-iredmail-support-error-on-changing-messagesizelimit-how-exactly-does-quota-work.html
• https://www.digitalocean.com/community/articles/how-to-add-swap-on-ubuntu-12-04
• http://respirandolinux.wordpress.com/2013/08/06/postfix-bloqueando-spam-com-o-proprio-dominio/
• http://www.debiantutorials.com/implementing-spf-checks-in-postfix/