nobody ALL=/var/vpopmail/bin/vadduser (增加用户)
　　nobody ALL=/var/vpopmail/bin/vdeluser (删除用户)
　　nobody ALL=/var/vpopmail/bin/vpasswd (修改口令)
　　nobody ALL=/var/vpopmail/bin/vchkpw (检查用户口令是否正确)
　　nobody ALL=/var/vpopmail/bin/vsetuserquota (修改邮箱最大容量)
　　nobody ALL=/var/vpopmail/bin/vmoduser (修改用户信息)
　　root ALL=(ALL) ALL

require("/home/httpd/phplib/qmail.inc");
$qmail_date = "v1";
$qmail_email = new register_email ;
$sql = "select pw_name from ".$qmail_date;
$qmail_email->query($sql);
while ($qmail_email->next_record())
{
$qmail_user = $qmail_email->f("pw_name");
$passwd = "12345";
$str_command = "sudo /var/vpopmail/bin/vadduser " .$qmail_user.;
$str_command = $str_command."@mail.com".$passwd." -q 10000000 < /home/n";
@exec($str_command,$str,&$result);
if ($result != 0 )
{
echo "command string is :".$str_command." , command is failed!!!<br>";
$error_info = "在执行vadduser命令时失败";
$address = "From: [email protected]\nReply-To: [email protected]\n" ;
mail("[email protected]", $error_info , $message,$address );
}
}
$qmail_email->free();

if (!file_exists($mail_att)) //判断文件是否上载成功
    { //错误处理及显示
    　break ;
    }
    copy ($mail_att, $mail_att.".att") ; //将附件重新改名并拷贝到指定位置。
    for ($i = 1; $i <= $num_attach; $i++)
    {
    　$file_name = "send_att".$i; //得到上传文件的原始名称
    　$file_tmp = "send_att_tmp".$i; //得到上传文件在服务器中的临时文件名称
    　$file_size = "send_att_size".$i; //得到上传文件的大小
    　$file_mime = "send_att_mime".$i; //得到上传文件的类型
    }

if (file_exists($attach_filepos)) //判断文件是否存在
    {
    　$size = filesize($attach_filepos); //得到文件的大小
    　//将用户原始文件名提供给用户下载。
    　header("Content-Disposition: attachment; filename=".$attach_filename);
    　header("Content-length: ".$size);
    　header("Content-type: application/x-zip-compressed");
    　readfile($attach_filepos); //将下载文件读出，提供给用户下载。
    }