RHCE---使用邮箱客户端s-nail

使用邮箱客户端s-nail

方案一：使用网易邮箱

1，挂载虚拟镜像

[root@localhost ~]# mount  /dev/sr1 /mnt
mount: /mnt: /dev/sr1 already mounted on /run/media/root/RHEL-9-3-0-BaseOS-x86_64.

2，编辑环境文件

[root@localhost ~]# vim /etc/yum.repos.d/base.repo
[root@localhost ~]# cat /etc/yum.repos.d/base.repo 
    [BaseOS]
    name=BaseOS
    baseurl=file:///mnt/BaseOS
    gpgcheck=0

    [AppStream]
    name=AppStream
    baseurl=file:///mnt/AppStream
    gpgcheck=0

3，安装s-nail邮箱客户端

[root@localhost ~]# dnf install s-nail -y
Complete!

4，编写邮箱客户端的环境

[root@localhost ~]# vim /etc/s-nail.rc
[root@localhost ~]# tail -5 /etc/s-nail.rc
set from=XXXXXXXXXXXXXXXXX@163.com         ------粘贴自己的网易邮箱账号（没有账号可注册）
set smtp=smtp.163.com
set smtp-auth-user=XXXXXXXXXXXXXXXXX@163.com       ---这里也是自己的网易邮箱账号
set smtp-auth-password=XXXXXXXXXXXXX（授权码）     ------这里需要获取授权码
set smtp-auth=login

授权码获取方式：

得到授权码后，粘贴进文件内部即可使用。注意在退出文件编辑时需要使用强制保存退出（wq!命令），否则配置文件的命令不会生效。

5，验证邮箱

[root@localhost ~]# echo 你好世界 | mail -s jinggao XXXXXXXXXXXXX@163.com      ------网易邮箱账号
s-nail: Warning: variable superseded or obsoleted: smtp
s-nail: Warning: variable superseded or obsoleted: smtp-auth-user
s-nail: Warning: variable superseded or obsoleted: smtp-auth-password
s-nail: Obsoletion warning: please do not use *smtp*, instead assign a smtp:// URL to *mta*!
s-nail: Obsoletion warning: Use of old-style credentials, which will vanish in v15!
s-nail:   Please read the manual section "On URL syntax and credential lookup"

登录网易邮箱即可看见邮件，表明验证成功。

方案二：使用QQ邮箱

1，挂载虚拟镜像

[root@localhost ~]# mount  /dev/sr1 /mnt
mount: /mnt: /dev/sr1 already mounted on /run/media/root/RHEL-9-3-0-BaseOS-x86_64.

2，编辑环境文件

[root@localhost ~]# vim /etc/yum.repos.d/base.repo
[root@localhost ~]# cat /etc/yum.repos.d/base.repo 
    [BaseOS]
    name=BaseOS
    baseurl=file:///mnt/BaseOS
    gpgcheck=0

    [AppStream]
    name=AppStream
    baseurl=file:///mnt/AppStream
    gpgcheck=0

3，安装s-nail邮箱客户端

[root@localhost ~]# dnf install s-nail -y
Complete!

4，s-nail程序登录验证qq账号

[root@localhost ~]# vim /etc/s-nail.rc
[root@localhost ~]# tail -7 /etc/s-nail.rc
set from=XXXXXXXXXX@qq.com             ------QQ邮箱账号
set smtp=smtps://smtp.qq.com:465
set smtp-auth-user=XXXXXXXXXX@qq.com          -----QQ邮箱账号
set smtp-auth-password=XXXXXXXXXXXX           -----QQ授权码
set smtp-auth=login
set ssl-verify=ignore
set nss-config-dir=/root/.certs

在qq客户端程序（如浏览器中进入邮箱登录QQ邮箱->设置->账户）中通过设置开启imap/smtp服务提供第三方程序账号的授权码：

5，因为需要 QQ 邮箱的 SSL 证书，所以我们还需要手动的获取QQ 邮箱的证书保存到本地指定的目录里以备调用和验证，具体命令如下：

[root@localhost ~]# mkdir -p /root/.certs/
[root@localhost ~]# echo -n | openssl s_client -connect smtp.qq.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/qq.crt
[root@localhost ~]# certutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crt
[root@localhost ~]# certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crt
[root@localhost ~]# certutil -L -d /root/.certs

为了防止出现前文所说的发送邮件警告提示，还需要进入邮箱 SSL 证书存放目录 /root/.certs 里执行如下命令：

[root@localhost ~]# cd /root/.certs
[root@localhost ~]# certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i qq.crt

返回如下提示即可：

Notice: Trust flag u is set automatically if the private key is present.

6，验证测试

[root@localhost .certs]# echo 123 | mail -s test XXXXXXXXXX@qq.com        -----QQ邮箱账号
s-nail: Warning: variable superseded or obsoleted: smtp
s-nail: Warning: variable superseded or obsoleted: smtp-auth-user
s-nail: Warning: variable superseded or obsoleted: smtp-auth-password
s-nail: Warning: variable superseded or obsoleted: ssl-verify
s-nail: Obsoletion warning: please do not use *smtp*, instead assign a smtp:// URL to *mta*!
s-nail: Obsoletion warning: Use of old-style credentials, which will vanish in v15!
s-nail:   Please read the manual section "On URL syntax and credential lookup"
s-nail: SMTP server: /root/dead.letter 10/220
s-nail: ... message not sent

登录QQ邮箱即可看见邮件，表明验证成功。