title:="邮件发送测试";       //邮件标题
  sender:="xxxx1@qq.com";    //发件人邮箱
  recipient:="xxxx2@qq.com";   //收件人邮箱
  content:="测试测试test";        //邮件内容
  ret:=rdo2 sysSendmail("smtp.qq.com",
               title,
               recipient,
               Sender,
               content,
               msg);