Cleanup
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@ -0,0 +1,62 @@
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FROM ubuntu:14.04
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ENV DEBIAN_FRONTEND noninteractive
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RUN locale-gen en_GB en_GB.UTF-8 && dpkg-reconfigure locales
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RUN apt-get update
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RUN apt-get -y -q autoclean
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RUN apt-get -y -q autoremove
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RUN apt-get clean
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# Prerequisites
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# install self-signed ssl certs
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RUN apt-get install -y --force-yes ssl-cert
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# Install postfix as MTA
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RUN apt-get install -y --force-yes postfix
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# Install dovecot as IMAP server
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RUN apt-get install -y --force-yes dovecot-imapd
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# Install OpenDKIM domain signing server
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RUN apt-get install -y --force-yes opendkim
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# postfix configuration
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ADD ./config/postfix.main.cf /etc/postfix/main.cf
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ADD ./condig/postfix.master.cf.append /etc/postfix/master-additional.cf
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RUN cat /etc/postfix/master-additional.cf >> /etc/postfix/master.cf
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# configure settings script
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VOLUME ["/mail_config"]
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COPY process_settings /process_settings
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RUN chmod 755 /process_settings
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# add user vmail who own all mail folders
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VOLUME ["/vmail"]
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RUN groupadd -g 5000 vmail
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RUN useradd -g vmail -u 5000 vmail -d /vmail -m
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# dovecot configuration
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ADD ./config/dovecot.mail /etc/dovecot/conf.d/10-mail.conf
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ADD ./config/dovecot.ssl /etc/dovecot/conf.d/10-ssl.conf
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ADD ./config/dovecot.auth /etc/dovecot/conf.d/10-auth.conf
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ADD ./config/dovecot.master /etc/dovecot/conf.d/10-master.conf
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ADD ./config/dovecot.lda /etc/dovecot/conf.d/15-lda.conf
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ADD ./config/dovecot.imap /etc/dovecot/conf.d/20-imap.conf
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# add verbose logging
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#ADD ./config/dovecot.logging /etc/dovecot/conf.d/10-logging.conf
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# smtp port for incoming mail
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EXPOSE 25
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# imap port
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EXPOSE 143
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# smtp port for outgoing
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EXPOSE 587
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# todo: enable port 587 for outgoing mail, separate ports 25 and 587
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# http://www.synology-wiki.de/index.php/Zusaetzliche_Ports_fuer_Postfix
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# start necessary services for operation (dovecot -F starts dovecot in the foreground to prevent container exit)
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ENTRYPOINT /process_settings; service rsyslog start; service opendkim start; service postfix start; dovecot -F
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14
Makefile
14
Makefile
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@ -1,11 +1,9 @@
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all: dovecot
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all: build
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.PHONY: dovecot
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.PHONY: build
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dovecot:
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cd dovecot; docker build -t dovecot_made_special:2.1.7 .
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build:
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docker build -t dockermail_made_special:2.1.7 .
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run-dovecot:
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docker run -d -p 25:25 -p 587:587 -p 143:143 -v /opt/dockermail/settings:/mail_settings -v /opt/dockermail/vmail:/vmail dovecot_made_special:2.1.7
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run-all: run-dovecot
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run:
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docker run -name dockermail -d -p 25:25 -p 587:587 -p 143:143 -v /opt/dockermail/settings:/mail_settings -v /opt/dockermail/vmail:/vmail dockermail_made_special:2.1.7
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77
README.md
77
README.md
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@ -5,63 +5,62 @@ Based on https://github.com/lava/dockermail
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A secure, minimal-configuration mail server in a docker container.
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This repository is tailored to small private servers, where you own some domain(s) and
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want to receive the mail for and send mail from this domain.
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This repository is tailored to small private servers, where you own a domain and want to host your own mail.
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The SMTP and IMAP server. This container uses postfix as MTA and dovecot as IMAP server.
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All incoming mail to your own domains is accepted. For outgoing mail, only authenticated
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(logged in with username and password) clients can send messages via STARTTLS on port 587.
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Outgoing mail is configured to get OpenDKIM signature, you need to generate a key and set up your domain records.
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Also you should add PTR record to your IP (aka reverse DNS) which is done by your server provider and add an SPF record to your domain - otherwise you may get your mail spam filtered.
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This container uses postfix as MTA and dovecot as IMAP server.
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All incoming mail to your domains is accepted.
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For outgoing mail, only authenticated (logged in with username and password) clients can send messages via STARTTLS.
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SPAM stuff
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=====
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Outgoing mail is signed by OpenDKIM, you need to generate a key and set up your domain records (see step 5).
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You should add PTR record to your IP (aka reverse DNS) which is done by your server provider.
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And finally, generate and add an SPF record to your domain, search for instructions on this - there are a few generator site around and the setup steps depend on your domain name provider.
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Setup
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=====
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Create 2 folders: one for mail configuration (`/opt/dockermail/settings`), another for mail storage (`/opt/dockermail/vmail`).
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Use the the example config files in `dovecot/example` of this repo.
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Use the the example config files in `config/example` of this repo.
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1) Add all domains you want to receive mail for to the file `/opt/dockermail/settings/domains`, like this:
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1. Add all domains you want to receive mail for to the file `/opt/dockermail/settings/domains`, like this:
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example.org
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example.net
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example.org
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example.net
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2) Add user aliases to the file `/opt/dockermail/settings/aliases`, like
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2. Add user aliases to the file `/opt/dockermail/settings/aliases`, like
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johndoe@example.org john.doe@example.org
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john.doe@example.org john.doe@example.org
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admin@forum.example.org forum-admin@example.org
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@example.net catch-all@example.net
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johndoe@example.org john.doe@example.org
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john.doe@example.org john.doe@example.org
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admin@forum.example.org forum-admin@example.org
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@example.net catch-all@example.net
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An IMAP mail account is created for each entry on the right hand side.
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Every mail sent to one of the addresses in the left column will
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be delivered to the corresponding account in the right column.
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An IMAP mail account is created for each entry on the right hand side.
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Every mail sent to one of the addresses in the left column will be delivered to the corresponding account in the right column.
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3) Add user passwords to the file `/opt/dockermail/settings/passwords` like this
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3. Add user passwords to the file `/opt/dockermail/settings/passwords` like this
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john.doe@example.org:{PLAIN}password123
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admin@example.org:{SHA256-CRYPT}$5$ojXGqoxOAygN91er$VQD/8dDyCYOaLl2yLJlRFXgl.NSrB3seZGXBRMdZAr6
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john.doe@example.org:{PLAIN}password123
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admin@example.org:{SHA256-CRYPT}$5$ojXGqoxOAygN91er$VQD/8dDyCYOaLl2yLJlRFXgl.NSrB3seZGXBRMdZAr6
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To get the hash values, you can either install dovecot locally or use `docker exec -it dockermail bash` to attach to the running
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container and run `doveadm pw -s <scheme-name>` inside.
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To get the hash values, you can either install dovecot locally or use `docker exec -it dockermail bash` to attach to the running container (step 7) and run `doveadm pw -s <scheme-name>` inside.
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4) Change the hostname in file `/opt/dockermail/settings/myhostname` to the correct fully qualified domain of your server.
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4. Change the hostname in file `/opt/dockermail/settings/myhostname` to the correct fully qualified domain of your server.
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5) Add DKIM settings files: `/opt/dockermail/settings/opendkim.conf` and `/opt/dockermail/settings/mail.private`
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See https://help.ubuntu.com/community/Postfix/DKIM on the info about these settings.
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You will need to generate your own `mail.private` key and set up your domain records, the `opendkim.conf` from `dovecot/examples`
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is ready to use.
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5. Add DKIM settings files: `/opt/dockermail/settings/opendkim.conf` and `/opt/dockermail/settings/mail.private`
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See https://help.ubuntu.com/community/Postfix/DKIM on the info about these settings.
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You will need to generate your own `mail.private` key and set up your domain records, the `opendkim.conf` from `config/example`
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is ready to use.
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6) Build container
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6. Build container
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make
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make
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7) Run container and map ports 25 and 143 from the host to the container.
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To store your mail outside the container, map `/opt/dockermail/vmail/` to
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a directory on your host. (This is recommended, otherwise
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you have to remember to backup your mail when you want to restart the container)
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7. Run container and map ports 25 and 143 from the host to the container.
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To store your mail outside the container, map `/opt/dockermail/vmail/` to
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a directory on your host. (This is recommended, otherwise
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you have to remember to backup your mail when you want to restart the container)
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`docker run -d -p 25:25 -p 587:587 -p 143:143 -v /opt/dockermail/settings:/mail_settings -v /opt/dockermail/vmail:/vmail dovecot_made_special/2.1.7`
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`docker run -name dockermail -d -p 25:25 -p 587:587 -p 143:143 -v /opt/dockermail/settings:/mail_settings -v /opt/dockermail/vmail:/vmail dockermail_made_special/2.1.7`
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8) Enjoy.
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Patches welcome!
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8. Enjoy!
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@ -1,86 +0,0 @@
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FROM ubuntu:14.04
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ENV DEBIAN_FRONTEND noninteractive
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RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty main' | tee /etc/apt/sources.list
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RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty main' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-updates main' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates main' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty universe' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty universe' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-updates universe' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates universe' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty multiverse' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty multiverse' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-updates multiverse' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates multiverse' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://security.ubuntu.com/ubuntu trusty-security main' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://security.ubuntu.com/ubuntu trusty-security main' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://security.ubuntu.com/ubuntu trusty-security universe' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://security.ubuntu.com/ubuntu trusty-security universe' | tee -a /etc/apt/sources.list
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RUN echo 'deb http://security.ubuntu.com/ubuntu trusty-security multiverse' | tee -a /etc/apt/sources.list
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RUN echo 'deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse' | tee -a /etc/apt/sources.list
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RUN locale-gen en_GB en_GB.UTF-8 && dpkg-reconfigure locales
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RUN apt-get update
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RUN apt-get -y -q autoclean
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RUN apt-get -y -q autoremove
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RUN apt-get clean
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# prerequisites
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RUN apt-get update
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# install self-signed ssl certs
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RUN apt-get install -y --force-yes ssl-cert
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# Install postfix as MTA
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RUN apt-get install -y --force-yes postfix
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# Install dovecot as IMAP server
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RUN apt-get install -y --force-yes dovecot-imapd
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# Install OpenDKIM domain signing server
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RUN apt-get install -y --force-yes opendkim
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# postfix configuration
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ADD ./postfix.main.cf /etc/postfix/main.cf
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ADD ./postfix.master.cf.append /etc/postfix/master-additional.cf
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RUN cat /etc/postfix/master-additional.cf >> /etc/postfix/master.cf
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# configure settings script
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VOLUME ["/mail_config"]
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COPY process_settings /process_settings
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RUN chmod 755 /process_settings
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# add user vmail who own all mail folders
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VOLUME ["/vmail"]
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RUN groupadd -g 5000 vmail
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RUN useradd -g vmail -u 5000 vmail -d /vmail -m
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# dovecot configuration
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ADD ./dovecot.mail /etc/dovecot/conf.d/10-mail.conf
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ADD ./dovecot.ssl /etc/dovecot/conf.d/10-ssl.conf
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ADD ./dovecot.auth /etc/dovecot/conf.d/10-auth.conf
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ADD ./dovecot.master /etc/dovecot/conf.d/10-master.conf
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ADD ./dovecot.lda /etc/dovecot/conf.d/15-lda.conf
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ADD ./dovecot.imap /etc/dovecot/conf.d/20-imap.conf
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# add verbose logging
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#ADD ./internal/dovecot.logging /etc/dovecot/conf.d/10-logging.conf
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# smtp port for incoming mail
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EXPOSE 25
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# imap port
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EXPOSE 143
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# smtp port for outgoing
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EXPOSE 587
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# todo: enable port 587 for outgoing mail, separate ports 25 and 587
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# http://www.synology-wiki.de/index.php/Zusaetzliche_Ports_fuer_Postfix
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# start necessary services for operation (dovecot -F starts dovecot in the foreground to prevent container exit)
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ENTRYPOINT /process_settings; service rsyslog start; service opendkim start; service postfix start; dovecot -F
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