Docker Mailserver

Basic Info

• Docker를 사용하여 메일 서버를 쉽고 간단히 구현할 수 있는 프로젝트
• 기본적으로 Postfix와 Dovecot 사용, Rspamd를 비롯한 많은 필터와 OpenDKIM과 같은 보안 기능 제공

Compose

• Docker compose 파일과 env 파일 다운로드

  $ curl https://raw.githubusercontent.com/docker-mailserver/docker-mailserver/master/compose.yaml -o compose.yaml
  $ curl https://raw.githubusercontent.com/docker-mailserver/docker-mailserver/master/mailserver.env -o mailserver.env 
  

• compose.yaml 설정 // 2024.12.10

  # original: https://github.com/docker-mailserver/docker-mailserver/blob/master/compose.yaml
  services:
    mailserver:
      image: ghcr.io/docker-mailserver/docker-mailserver:latest
      container_name: mailserver
      # Provide the FQDN of your mail server here (Your DNS MX record should point to this value)
  # Hostname을 알맞게 수정
      # hostname: mail.example.com
      hostname: mail.test.example.com 
      env_file: mailserver.env
      # More information about the mail-server ports:
      # https://docker-mailserver.github.io/docker-mailserver/latest/config/security/understanding-the-ports/
      ports:
        - "25:25"    # SMTP  (explicit TLS => STARTTLS, Authentication is DISABLED => use port 465/587 instead)
        - "143:143"  # IMAP4 (explicit TLS => STARTTLS)
        - "465:465"  # ESMTP (implicit TLS)
        - "587:587"  # ESMTP (explicit TLS => STARTTLS)
        - "993:993"  # IMAP4 (implicit TLS)
      volumes:
        - ./docker-data/dms/mail-data/:/var/mail/
        - ./docker-data/dms/mail-state/:/var/mail-state/
        - ./docker-data/dms/mail-logs/:/var/log/mail/
        - ./docker-data/dms/config/:/tmp/docker-mailserver/
        - /etc/localtime:/etc/localtime:ro
      restart: always
      stop_grace_period: 1m
      # Uncomment if using `ENABLE_FAIL2BAN=1`:
      # cap_add:
      #   - NET_ADMIN
      healthcheck:
        test: "ss --listening --tcp | grep -P 'LISTEN.+:smtp' || exit 1"
        timeout: 3s
        retries: 0
  

• Compose

  $ docker compose up --detach
  $ docker exec -it mailserver /bin/bash
  root@mail:/$
  

Configuration

• 기본 설정

  # 이메일 추가
  $ setup email example@test.example.com {password}
  # Alias 추가
  $ setup alias postmaster@test.example.com example@test.example.com