hkubota/postfix-dovecot repository overview

To run this container:

docker run -e maildomain=mydomain.com
-v /home/harald/postfix-dovecot/config:/config
-v /home/harald/postfix-dovecot/home:/home
-v /home/harald/postfix-dovecot/var_mail:/var/mail
-p 25:25 -p 465:465 -p 143:143 -p 993:993 -p 587:587
--name postfix-dovecot
-d
hkubota/postfix-dovecot:latest

It'll receive email for the listed domain (mydomain.com in the above example).

/config contains few configuration files: config/aliases: aliases file config/users.sh: file to create accounts and sets passwords config/ssl.crt and config/ssl.key: SSL certificate and private key

home/ has home directories for all users defined in users.sh. It's where mail is stored.

var_mail/ is /var/mail in the container: mailer directories. mail is stored here too. Permissions should be similar to /tmp