version: '2' services: imap: image: tschwery/dovecot environment: - ACCOUNTS=smtp:a volumes: - './maildir:/home/smtp/Maildir' ports: - "10143:143" smtp: image: tschwery/postfix environment: - DOMAIN=code.sai-erp.net - ACCOUNTS=incoming volumes: - './maildir:/home/smtp/Maildir' ports: - "10025:25"