compose.yaml

services:
  postgres:
    image: 'postgres:latest'
    environment:
      - 'POSTGRES_DB=mydatabase'
      - 'POSTGRES_PASSWORD=secret'
      - 'POSTGRES_USER=myuser'
    ports:
      - '5432:5432'
    networks:
      - backend
  greenmail:
    image: greenmail/standalone:latest
    environment:
      - JAVA_OPTS=-Dgreenmail.verbose
    ports:
      - 3025:3025 # SMTP
      - 3110:3110 # POP3
      - 3143:3143 # IMAP
      - 3465:3465 # SMTPS
      - 3993:3993 # IMAPS
      - 3995:3995 # POP3S
      - 8001:8080 # API
    networks:
      - backend
  roundcube:
    image: roundcube/roundcubemail:latest
    depends_on:
      - greenmail
    ports:
      - 8000:80
    environment:
      - ROUNDCUBEMAIL_DEFAULT_HOST=greenmail  # IMAP server - tls:// prefix for STARTTLS, ssl:// for SSL/TLS
      - ROUNDCUBEMAIL_DEFAULT_PORT=3143       # IMAP port
      - ROUNDCUBEMAIL_SMTP_SERVER=greenmail   # SMTP server - tls:// prefix for STARTTLS, ssl:// for SSL/TLS
      - ROUNDCUBEMAIL_SMTP_PORT=3025
    networks:
      - backend
networks:
  backend: