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81
Dockerfile
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81
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FROM eumau/debian:buster-slim
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LABEL maintainer "Mauro Torrez <mauro@mau.ro>"
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ARG DEBIAN_FRONTEND=noninteractive
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ENV LC_ALL C
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ENV MYDESTINATION='localhost.localdomain, localhost'
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ENV MYHOSTNAME=mail.example.com
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ENV MYDOMAIN=example.com
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ENV MYNETWORKS='127.0.0.0/8, [::ffff:127.0.0.0]/104, [::1]/128'
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ENV VIRTUAL_ALIAS_MAPS=
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ENV VIRTUAL_MAILBOX_MAPS=
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ENV VIRTUAL_TRANSPORT=lmtp:dovecot:24
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ENV VIRTUAL_MAILBOX_DOMAINS=example.com
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ENV SMTPD_SASL_PATH=inet:dovecot:12345
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ENV SMTPD_SASL_TYPE=dovecot
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ENV SMTPD_SASL_AUTH_ENABLE=no
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ENV SMTPD_TLS_CERT_FILE=/ssl/cert.pem
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ENV SMTPD_TLS_KEY_FILE=/ssl/key.pem
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ENV SMTP_TLS_SECURITY_LEVEL=may
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ENV SMTPD_TLS_SECURITY_LEVEL=may
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ENV SMTPD_TLS_AUTH_ONLY=no
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ENV SMTPD_TLS_SESSION_CACHE_DATABASE="btree:\${data_directory}/smtpd_scache"
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ENV SMTPD_CLIENT_RESTRICTIONS="check_client_access pcre:/etc/postfix/rules/client_access_list, permit_sasl_authenticated, permit_mynetworks, reject_unknown_client_hostname, reject_unauth_pipelining, permit"
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ENV SMTPD_DATA_RESTRICTIONS="reject_unauth_pipelining, permit"
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ENV SMTPD_HELO_RESTRICTIONS="check_helo_access hash:/etc/postfix/rules/helo_access_list, permit_mynetworks, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, warn_if_reject, permit"
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ENV SMTPD_RELAY_RESTRICTIONS="permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, permit"
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ENV SMTPD_RECIPIENT_RESTRICTIONS="check_recipient_access hash:/etc/postfix/rules/recipient_access_list, permit_mynetworks, permit_sasl_authenticated, reject_unknown_recipient_domain, reject_non_fqdn_recipient, reject_unauth_destination, permit"
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ENV MESSAGE_SIZE_LIMIT=31457280
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ENV SMTPD_HELO_REQUIRED=yes
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ENV BIFF=no
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ENV SUBMISSION_ENABLE=no
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# TODO: template access lists
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RUN echo "_dev_null: /dev/null" > /etc/aliases \
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&& apt-get update \
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&& apt-get install -y --no-install-recommends \
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postfix \
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postfix-pcre \
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postfix-ldap \
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postfix-sqlite \
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libsasl2-modules \
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ssl-cert \
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&& rm -rf /var/lib/apt/lists/* \
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&& cp /usr/share/postfix/main.cf.debian /etc/postfix/main.cf \
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&& mkdir -p /etc/postfix/rules \
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&& touch \
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/etc/postfix/rules/client_access_list \
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/etc/postfix/rules/helo_access_list \
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/etc/postfix/rules/recipient_access_list \
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&& mkdir -p /ssl \
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&& chmod 700 /ssl \
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&& cp /etc/ssl/certs/ssl-cert-snakeoil.pem /ssl/cert.pem \
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&& cp /etc/ssl/private/ssl-cert-snakeoil.key /ssl/key.pem \
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&& postconf -F \
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smtp/inet/chroot=n \
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pickup/unix/chroot=n \
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cleanup/unix/chroot=n \
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qmgr/unix/chroot=n \
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tlsmgr/unix/chroot=n \
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rewrite/unix/chroot=n \
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bounce/unix/chroot=n \
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defer/unix/chroot=n \
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trace/unix/chroot=n \
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verify/unix/chroot=n \
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flush/unix/chroot=n \
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smtp/unix/chroot=n \
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relay/unix/chroot=n \
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showq/unix/chroot=n \
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error/unix/chroot=n \
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retry/unix/chroot=n \
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discard/unix/chroot=n \
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lmtp/unix/chroot=n \
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anvil/unix/chroot=n \
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scache/unix/chroot=n
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ADD confd /etc/confd/
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VOLUME /etc/postfix /ssl
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EXPOSE 25/tcp 587/tcp
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CMD ["postfix","start-fg"]
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