47 lines
2.1 KiB
Markdown
47 lines
2.1 KiB
Markdown
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Dockermail - Email Core
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==========
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This image provides a secure, minimal mail server based on 'postfix' and 'dovecot'.
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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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### Setup
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You will need 2 folder on your host, one to store your configuration and another one to store your email.
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In the instructions below we will use the following:
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* `/opt/dockermail/settings` to store configuration
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* `/opt/dockermail/vmail` to store the mail
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Use the the example config files in `config/example` to get you started.
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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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2. Add user aliases to the file `/opt/dockermail/settings/aliases`:
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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 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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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 [email_core_container_name] bash` to attach to the running container (step 6) and run `doveadm pw -s <scheme-name>` inside, remember to restart your container if you update the settings!
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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. Build container
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docker build -t dockermail_email_core .
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6. Run container and map ports 25 and 143 from the host to the container.
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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_email_core`
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