mirror of
https://github.com/bokysan/docker-postfix.git
synced 2025-02-24 22:53:01 +08:00
928e5d64c7
This commit brings two important features: - **DKIM support** It's now possible to configure this postfix image to sign messages using DKIM by simply generating the keys and providing them in the approprate folder. This should bring us one step closer to directly sending out emails without relying on a 3rd-party proxy. - **test support** A nice and handy script, conviniently called `test.sh` has been provided, builds the image, spins it up and tries to send out an email. You'll need `docker-compose` to run it, though.
51 lines
1.8 KiB
Docker
51 lines
1.8 KiB
Docker
FROM alpine:latest
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LABEL maintaner="Bojan Cekrlic - https://github.com/bokysan/docker-postfix/"
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# See README.md for details
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# Set the timezone for the container, if needed.
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ENV TZ=
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# Postfix myhostname
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ENV HOSTNAME=
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# Host that relays your msgs
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ENV RELAYHOST=
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# An (optional) username for the relay server
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ENV RELAYHOST_USERNAME=
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# An (optional) login password for the relay server
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ENV RELAYHOST_PASSWORD=
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# Define relay host TLS connection level. See http://www.postfix.org/postconf.5.html#smtp_tls_security_level for details.
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# By default, the permissive level ("may") is used, if not defined.
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ENV RELAYHOST_TLS_LEVEL=
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# Allow domains from per Network ( default 127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16 )
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ENV MYNETWORKS=127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
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# Allow any sender domains
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ENV ALLOWED_SENDER_DOMAINS=
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# Attachments size. 0 means unlimited. Usually needs to be set if your relay host has an attachment size limit
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ENV MESSAGE_SIZE_LIMIT=
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# Enable additional debugging for connections to postfix
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ENV INBOUND_DEBUGGING=
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# Install supervisor, postfix
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RUN true && \
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apk add --no-cache --update postfix ca-certificates tzdata supervisor rsyslog opendkim && \
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apk add --no-cache --upgrade musl musl-utils && \
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(rm "/tmp/"* 2>/dev/null || true) && (rm -rf /var/cache/apk/* 2>/dev/null || true)
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# Set up configuration
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COPY supervisord.conf /etc/supervisord.conf
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COPY rsyslog.conf /etc/rsyslog.conf
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COPY opendkim.conf /etc/opendkim/opendkim.conf
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COPY run.sh /run.sh
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COPY opendkim.sh /opendkim.sh
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RUN chmod +x /run.sh /opendkim.sh
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# Set up volumes
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VOLUME [ "/var/spool/postfix", "/etc/postfix", "/etc/opendkim/keys" ]
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# Run supervisord
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USER root
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WORKDIR /tmp
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EXPOSE 587
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CMD ["/bin/sh", "-c", "/run.sh"]
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