为play-with-docker.com（Alpine Linux）安装本地邮件服务器

我想知道如何在（Alpine Linux）中安装邮件服务器：

使用此Linux操作系统：

$ cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.12.0
PRETTY_NAME="Alpine Linux v3.12"
HOME_URL="https://alpinelinux.org/"

使用它向我的gmail id发送数据

我有一些代码，我想在不使用非本地smtp服务器的情况下将结果发送到gmail，因此我找到了一些docker邮件服务器，如，但我不知道如何安装这些代码，并出现以下错误：

[node1] (local) root@192.168.0.23 ~
$ cd 
[node1] (local) root@192.168.0.23 ~
$ curl -o setup.sh https://raw.githubusercontent.com/tomav/docker-mailserver/master/setup.sh; chmod a+x ./setup.sh
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  7610  100  7610    0     0  48164      0 --:--:-- --:--:-- --:--:-- 48164
[node1] (local) root@192.168.0.23 ~
$ 
[node1] (local) root@192.168.0.23 ~
$ curl -o docker-compose.yml https://raw.githubusercontent.com/tomav/docker-mailserver/master/docker-compose.yml.dist
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100   565  100   565    0     0  10462      0 --:--:-- --:--:-- --:--:-- 10462
[node1] (local) root@192.168.0.23 ~
$ 
[node1] (local) root@192.168.0.23 ~
$ curl -o .env https://raw.githubusercontent.com/tomav/docker-mailserver/master/.env.dist
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   443  100   443    0     0   1522      0 --:--:-- --:--:-- --:--:--  1517
[node1] (local) root@192.168.0.23 ~
$ 
[node1] (local) root@192.168.0.23 ~
$ curl -o env-mailserver https://raw.githubusercontent.com/tomav/docker-mailserver/master/env-mailserver.dist
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 17127  100 17127    0     0  98431      0 --:--:-- --:--:-- --:--:-- 99000
[node1] (local) root@192.168.0.23 ~
$ 
[node1] (local) root@192.168.0.23 ~
$ 
[node1] (local) root@192.168.0.23 ~
$ docker-compose up -d mail

Creating network "root_default" with the default driver
Creating volume "root_maildata" with default driver
Creating volume "root_mailstate" with default driver
Creating volume "root_maillogs" with default driver
Creating mail ... error

ERROR: for mail  Cannot create container for service mail: Conflict. The container name "/mail" is already in use by container "ad143b6b6f3040fa9db660d842722d19d1e9a2e8f72ff48ed901ed96aef1dddb". You have to remove (or rename) that container to be able to reuse that name.

ERROR: for mail  Cannot create container for service mail: Conflict. The container name "/mail" is already in use by container "ad143b6b6f3040fa9db660d842722d19d1e9a2e8f72ff48ed901ed96aef1dddb". You have to remove (or rename) that container to be able to reuse that name.
ERROR: Encountered errors while bringing up the project.

本地邮件服务器的主要功能是发送如下所示的简单数据，而无需设置smtp服务器：

echo "test" | mail -s "Test link"  <Mail_ID>@gmail.com 

echo“test”| mail-s“test link”@gmail.com

谢谢