mail:
image: tvial/docker-mailserver
hostname: mail
domainname: domain.com
cap_add:
- NET_ADMIN
ports:
- "25:25"
- "143:143"
- "587:587"
- "993:993"
volumes:
- ./spamassassin:/tmp/spamassassin/
- ./postfix:/tmp/postfix/
environment: