mirror of
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148 lines
3.9 KiB
Markdown
148 lines
3.9 KiB
Markdown
# docker-mailserver [](https://travis-ci.org/tomav/docker-mailserver)
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```
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#
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# CURRENTLY IN RELEASE CANDIDATE
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#
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```
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A fullstack but simple mail server (smtp, imap, antispam, antivirus...).
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Only configuration files, no SQL database. Keep it simple and versioned.
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Easy to deploy and upgrade.
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Includes:
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- postfix with smtp auth
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- dovecot for sasl, imap (and optional pop3) with ssl support
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- amavis
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- spamassasin supporting custom rules
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- clamav with automatic updates
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- opendkim
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- opendmarc
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- fail2ban
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- basic [sieve support](https://github.com/tomav/docker-mailserver/wiki/Configuring-Sieve-filters) using dovecot
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- [LetsEncrypt](https://letsencrypt.org/) and self-signed certificates
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- [integration tests](https://travis-ci.org/tomav/docker-mailserver)
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- [automated builds on docker hub](https://hub.docker.com/r/tvial/docker-mailserver/)
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Why I created this image: [Simple mail server with Docker](http://tvi.al/simple-mail-server-with-docker/)
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Before you open an issue, please have a look this `README`, the [Wiki](https://github.com/tomav/docker-mailserver/wiki/) and Postfix/Dovecot documentation.
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## Usage
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#### Get v2 image
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docker pull tvial/docker-mailserver:v2
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#### Create a `docker-compose.yml`
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Adapt this file with your FQDN.
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version: '2'
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services:
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mail:
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image: tvial/docker-mailserver:v2
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# build: .
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hostname: mail
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domainname: domain.com
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container_name: mail
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volumes:
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- maildata:/var/mail
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ports:
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- "25:25"
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- "143:143"
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- "587:587"
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- "993:993"
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volumes:
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- ./config/:/tmp/docker-mailserver/
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- ./opendkim/:/tmp/docker-mailserver/opendkim/
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volumes:
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maildata:
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driver: local
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#### Create your mail accounts
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Don't forget to adapt MAIL_USER and MAIL_PASS to your needs
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mkdir -p config
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docker run --rm \
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-e MAIL_USER=user1@domain.tld \
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-e MAIL_PASS=mypassword \
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-ti tvial/docker-mailserver:v2 \
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/bin/sh -c 'echo "$MAIL_USER|$(doveadm pw -s CRAM-MD5 -u $MAIL_USER -p $MAIL_PASS)"' >> config/postfix-accounts.cf
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#### Generate DKIM keys
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docker run --rm \
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-v "$(pwd)/config":/tmp/docker-mailserver \
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-ti tvial/docker-mailserver:v2 generate-dkim-config
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Now the keys are generated, you can configure your DNS server by just pasting the content of `config/opedkim/keys/domain.tld/mail.txt` in your `domain.tld.hosts` zone.
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#### Start the container
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docker-compose up -d mail
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You're done!
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## Environment variables
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Please check [how the container starts](https://github.com/tomav/docker-mailserver/blob/v2/target/start-mailserver.sh) to understand what's expected.
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Value in **bold** is the default value.
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##### ENABLE_POP3
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- **empty** => POP3 service disabled
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- 1 => Enables POP3 service
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##### ENABLE_FAIL2BAN
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- **empty** => fail2ban service disabled
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- 1 => Enables fail2ban service
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If you enable Fail2Ban, don't forget to add the following lines to your `docker-compose.yml`:
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cap_add:
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- NET_ADMIN
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Otherwise, `iptables` won't be able to ban IPs.
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##### SA_TAG
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- **2.0** => add spam info headers if at, or above that level
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##### SA_TAG2
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- **6.31** => add 'spam detected' headers at that level
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##### SA_KILL
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- **6.31** => triggers spam evasive actions
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##### SASL_PASSWD
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- **empty** => No sasl_passwd will be created
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- string => `/etc/postfix/sasl_passwd` will be created with the string as password
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##### SMTP_ONLY
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- **empty** => all daemons start
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- 1 => only launch postfix smtp
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##### SSL_TYPE
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- **empty** => SSL disabled
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- letsencrypt => Enables Let's Encrypt certificates
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- custom => Enables custom certificates
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- self-signed => Enables self-signed certificates
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Please read [the SSL page in the wiki](https://github.com/tomav/docker-mailserver/wiki/Configure-SSL) for more information.
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