邮箱配置文件说明
vim /etc/mail.rc
set from=15089993907@163.com smtp=smtp.163.com smtp-auth-user=15089993907 smtp-auth-password=oldboye123 smtp-auth=login
set from=(发件人)
smtp=(邮件对应的服务)
smtp-auth-user=@前的名字
smtp-auth-password=(授权码)
smtp-auth=login(登入)
启动服务
systemctl restart postfix.service