docker-mailserver/Dockerfile

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FROM ubuntu:14.04
MAINTAINER Thomas VIAL
# Packages
RUN apt-get update -q --fix-missing
RUN apt-get -y upgrade
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RUN DEBIAN_FRONTEND=noninteractive apt-get -y install vim postfix sasl2-bin courier-imap courier-imap-ssl \
courier-pop courier-pop-ssl courier-authdaemon supervisor gamin amavisd-new spamassassin clamav clamav-daemon libnet-dns-perl libmail-spf-perl \
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pyzor razor arj bzip2 cabextract cpio file gzip nomarch p7zip pax unzip zip zoo rsyslog mailutils netcat \
opendkim opendkim-tools
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RUN apt-get autoclean && rm -rf /var/lib/apt/lists/*
# Configures Saslauthd
RUN rm -rf /var/run/saslauthd && ln -s /var/spool/postfix/var/run/saslauthd /var/run/saslauthd
RUN adduser postfix sasl
RUN echo 'NAME="saslauthd"\nSTART=yes\nMECHANISMS="sasldb"\nTHREADS=0\nPWDIR=/var/spool/postfix/var/run/saslauthd\nPIDFILE="${PWDIR}/saslauthd.pid"\nOPTIONS="-n 0 -c -m /var/spool/postfix/var/run/saslauthd"' > /etc/default/saslauthd
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# Configures Courier
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RUN sed -i -r 's/daemons=5/daemons=1/g' /etc/courier/authdaemonrc
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RUN sed -i -r 's/authmodulelist="authpam"/authmodulelist="authuserdb"/g' /etc/courier/authdaemonrc
# Enables Spamassassin and CRON updates
RUN sed -i -r 's/^(CRON|ENABLED)=0/\1=1/g' /etc/default/spamassassin
# Enables Amavis
RUN sed -i -r 's/#(@| \\%)bypass/\1bypass/g' /etc/amavis/conf.d/15-content_filter_mode
RUN adduser clamav amavis
RUN adduser amavis clamav
RUN useradd -u 5000 -d /home/docker -s /bin/bash -p $(echo docker | openssl passwd -1 -stdin) docker
# Enables Clamav
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RUN chmod 644 /etc/clamav/freshclam.conf
RUN (crontab -l ; echo "0 1 * * * /usr/bin/freshclam --quiet") | sort - | uniq - | crontab -
RUN freshclam
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# Configure DKIM (opendkim)
RUN mkdir -p /etc/opendkim/keys
ADD postfix/TrustedHosts /etc/opendkim/TrustedHosts
# DKIM config files
ADD postfix/opendkim.conf /etc/opendkim.conf
ADD postfix/default-opendkim /etc/default/opendkim
# Configures Postfix
ADD postfix/main.cf /etc/postfix/main.cf
ADD postfix/master.cf /etc/postfix/master.cf
ADD postfix/sasl/smtpd.conf /etc/postfix/sasl/smtpd.conf
ADD bin/generate-ssl-certificate /usr/local/bin/generate-ssl-certificate
RUN chmod +x /usr/local/bin/generate-ssl-certificate
# Start-mailserver script
ADD start-mailserver.sh /usr/local/bin/start-mailserver.sh
RUN chmod +x /usr/local/bin/start-mailserver.sh
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# SMTP ports
EXPOSE 25
EXPOSE 587
# IMAP ports
EXPOSE 143
EXPOSE 993
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# POP3 ports
EXPOSE 110
EXPOSE 995
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CMD /usr/local/bin/start-mailserver.sh