• 以下以qq邮箱为例

一、准备工作

1、邮箱服务

• 登录QQ邮箱，开启SMTP服务并获取授权码：
  • 设置 --> 账户

2、停止服务

• service sendmail stop
• chkconfig sendmail off

3、启动postfix服务

• service postfix start
• chkconfig postfix on
• postfix check
• systemctl status postfix

4、安装mail命令

• yum -y install mailx

5、调整参数

• vi /etc/postfix/main.cf
  • inet_interfaces = all

6、创建认证

• mkdir -p /.certs/
• echo -n | openssl s_client -connect smtp.qq.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /.certs/qq.crt
• certutil -A -n "GeoTrust SSL CA" -t "C,," -d /.certs -i /.certs/qq.crt
• certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i /.certs/qq.crt
• certutil -L -d /.certs
• cd /.certs
• certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i qq.crt

7、配置邮件发送者

• vi /etc/mail.rc

  • # 邮箱号
    set from=XXXXXXXXXX@qq.com
    set smtp=smtps://smtp.qq.com:465
    set smtp-auth-user=XXXXXXXXXX
    # 授权码
    set smtp-auth-password=YYYYYYYYYYY
    set smtp-auth=login
    set ssl-verify=ignore
    set nss-config-dir=/.certs
    

二、测试

• echo hello word | mail -s " title" XXXXXXXXXX@qq.com
• 实时查看日志：
  • tail -f /var/log/maillog

三、相关标准示例

发邮件不带附件

• EMAIL=XXXXXXXXXX@qq.com
  echo -e "`date "+%Y-%m-%d %H:%M:%S"` : The current running $JOB_NAME job num is
  $RUNNINGNUM in 主机名 ......" | mail \
  -r "From: alertAdmin <${EMAIL}>" \
  -s "Warn: Skip the new $JOB_NAME spark job." ${EMAIL}
  

发邮件带附件

• echo -e "`date "+%Y-%m-%d %H:%M:%S"` : Please to check the fail sql attachement."
  |
  mailx \
  -r "From: alertAdmin <${EMAIL}>" \
  -a error.log \
  -s "Critical:KSSH fail sql." ${EMAIL}