‌0、卸载旧版本Docker

yum remove docker \
    docker-client \
    docker-client-latest \
    docker-common \
    docker-latest \
    docker-latest-logrotate \
    docker-logrotate \
    docker-engine -y

1、更新系统

yum update -y

2、安装需要的软件包， yum-util 提供yum-config-manager功能，另外两个是devicemapper驱动依赖的

yum install -y yum-utils device-mapper-persistent-data lvm2 git

3、设置yum源（根据服务器地域选择其中一个）

yum-config-manager —add-repo http://download.docker.com/linux/centos/docker-ce.repo

4、安装Docker

yum install -y docker-ce docker-ce-cli containerd.io

5、守护进程重启

sudo systemctl daemon-reload

6、重启docker服务

sudo systemctl restart docker

7、加入开机启动

systemctl enable docker

‌8、安装docker compose

sudo curl -L “https://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)” -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

如果在本步骤执行遇到问题，可以直接上传二进制的文件（docker-compose）到/usr/local/bin/目录里即可；

docker-compose下载

二、安装mailin邮局

1、获取源码

git clone https://github.com/oscode1988/mailin.git

cd ./mailin

2、下载并启动

docker-compose up -d

可在mailin目录下的docker配置文件修改 网站的端口和接收邮件的地址；

docker-compose.yml

version: "3"
services:
  # mailin:
  #   image: oscode/mailin:new
  #   container_name: memailin
  #   environment:
  #     WEBHOOK_URL: "http://dev.mail.com/mailin.php"
  #   expose:
  #     - 25
  #   ports:
  #     - "25:25"
  #   extra_hosts:
  #     - "dev.mail.com:172.23.0.1"
  #   restart: always
  #   networks:
  #     extnetwork:
  #       ipv4_address: 172.23.0.7
  redis:
    image: redis:5.0.3-alpine
    container_name: meredis
    ports:
      - "9080:6379"
    volumes:
      - ./services/redis/redis.conf:/etc/redis.conf:ro
      - ./data/redis:/data/:rw
    restart: always
    entrypoint: ["redis-server", "/etc/redis.conf"]
    environment:
      TZ: "Asia/Shanghai"
    networks:
      extnetwork:
        ipv4_address: 172.23.0.5
  openresty:
    image:  openresty/openresty:alpine
    container_name: meopenresty
    ports:
      - "80:80"
    volumes:
      - ./www:/www/:rw
      - ./services/openresty/conf.d:/etc/nginx/conf.d/:ro
      - ./services/openresty/nginx.conf:/usr/local/openresty/nginx/conf/nginx.conf:ro
      - ./services/openresty/lua:/lua:rw
      - ./services/openresty/fastcgi-php.conf:/usr/local/openresty/nginx/conf/fastcgi-php.conf:ro
      - ./services/openresty/fastcgi_params:/usr/local/openresty/nginx/conf/fastcgi_params:ro
      - ./logs/nginx:/var/log/nginx/:rw
    environment:
      TZ: "Asia/Shanghai"
    restart: always
    networks:
      extnetwork:
        ipv4_address: 172.23.0.2

  php:
    image:  oscode/php
    container_name: mephp
    expose:
      - 9000
    volumes:
      - ./www:/www/:rw
      - ./services/php/php.ini:/usr/local/etc/php/php.ini:ro
      - ./services/php/php-fpm.conf:/usr/local/etc/php-fpm.d/www.conf:rw
      - ./logs/php:/var/log/php
      - ./data/composer:/tmp/composer
    restart: always
    cap_add:
      - SYS_PTRACE
    networks:
      extnetwork:
        ipv4_address: 172.23.0.3
networks:
  extnetwork:
    ipam:
        config:
          - 
            subnet: 172.23.0.0/16

‌启动mailin主程序

docker run -d --name=memailin --restart=always -p 25:25  oscode/mailin:new2 mailin --webhook=http://ip/mailin.php

3、解析域名

MX记录
@ MX 10 mail.domain.com

A记录
mail.domain.com A ip

3、邮件查看地址

http://IP地址:3003/mailin.php?email=邮箱

‌redies面板

http://ip/rma/
root
zhcx888

‌修改邮件内容保留的时间

/root/mailin/www/localhost/mailin.php #文件路径

$expire = 86400;                      #修改的参数 秒，3600秒=1小时，24小时86400秒