用SMTP传送邮件时的问题 

下面是我找到的一个直接使用smtp发送邮件的php例子程序(经改编), 但是服务器方总是提示: 550 system busy! 并且邮件无法发送.
那位知道如何处理?

另: 对于smtp服务器需要密码的情况该如何处理验证呢?

sory , 刚刚看到 smtp 发送邮件的问题 (链接的这个帖子怎么不是精华?, 建议斑竹给一个啊).




问题已经解决:
1. 命令data应该是"DATA\r\n"
2. from和to命令应该有, 否则一些server拒发邮件
3.使用base64_encode 加密用户名和密码

<?php

require("php\mail.php");
?>


<?
$smtp = "smtp.163.net";
$from ="hylpro@163.net";

$to = "hylpro@163.net";
$subject ="Hello php mail";



$message="Hello! this is a test use php";

$mail = new mail($smtp,"Welcom use this mail",true);

$mail->send( $to,$from,$subject,$message);

?>

 

<?

//---------------

// 实现SMTP

//---------------



class Mail{

  var $lastmessage; //记录最后返回的响应信息

  var $lastact; //最后的动作，字符串形式

  var $welcome; //用在HELO后面，欢迎用户

  var $debug; //是否显示调试信息

  var $smtp; //smtp服务器

  var $port; //smtp端口号

  var $fp; //socket句柄





  //Construct

  function mail($smtp, $welcome="", $debug=false)

  {

    if(empty($smtp)) die("SMTP cannt be NULL!");



    $this->smtp=$smtp;

    if(empty($welcome))

    {

       $this->welcome=gethostbyaddr("localhost");

    }

    else

      $this->welcome=$welcome;



      $this->debug=$debug;

      $this->lastmessage="";

      $this->lastact="";

      $this->port="25";

  }



  //

  function show_debug($message, $inout)

    {

      if ($this->debug)

      {

        if($inout=="in") //响应信息

          {

             $m="<b> 收: </b>";

          }

        else

             $m="<b> 发: </b>" ;



        if(!ereg("n$", $message))

          $message .= " ";



        $message=nl2br($message);



        echo "<font color=#339933> $m </font>$message ";

      }

   }//end show debug





   function do_command($command, $code)

   {



     $this->lastact=$command."\r\n";

     $this->show_debug($this->lastact, "out");



     fputs ( $this->fp, $this->lastact );





     $this->lastmessage = fgets ( $this->fp, 512 );



     $this->show_debug($this->lastmessage, "in");



     if(!ereg("^$code", $this->lastmessage)) return false;

     else return true;





   } //end do command





   //发一个命令

   function command($command, $code)

   {

     $this->lastact=$command."\r\n";

     $this->show_debug($this->lastact, "out");



     fputs ( $this->fp, $this->lastact );



   } //end send Cmd



   //等待一个应答

   function wait($code)

   {



     $this->lastmessage = fgets ( $this->fp, 512 );

     $this->show_debug($this->lastmessage, "in");



     if(!ereg("^$code", $this->lastmessage))

     {

        return false;

     }

     else

     {

        return true;

     }



   }





   //发送邮件

   function send( $to,$from,$subject,$message)

  {

     //连接服务器

     echo "<br>";



     $this->lastact="connect";

     $this->show_debug("Connect to SMTP server : ".$this->smtp, "out");

     $this->fp = fsockopen ( $this->smtp, $this->port );



     if ( $this->fp )

     {

         // set_socket_blocking( $this->fp, true );

        // stream_set_blocking($this->fp,true);



         $this->lastmessage=fgets($this->fp,512);

         $this->show_debug($this->lastmessage, "in");

         if (! ereg ( "^220", $this->lastmessage ) )

         {

              return false;

         }

         else

         {

             if(!$this->do_command("EHLO I want mail!", "250"))

             {

                fclose($this->fp);

                return false;

             }



             

             

             //处理认证, 不知如何直接使用用户名和密码计算认证值

             if(!$this->do_command("AUTH LOGIN","334"))

             {

                fclose($this->fp);

                return false;

             }



             //User hash

             if(!$this->do_command("xxxxx","334"))

             {

               fclose($this->fp);

               return false;

             }



             //code hash

             if(!$this->do_command("xxxx","235"))

             {

               fclose($this->fp);

               return false;

             }

             



             if(!$this->do_command("MAIL FROM : <$from> " , "250"))

             {

                fclose($this->fp);

                 return false;

             }



             if(!$this->do_command("RCPT TO: <$to>", "250"))

             {

                fclose($this->fp);

                return false;

             }



             //发送正文

             if(!$this->do_command("DATA\r\n.", "354"))

             {

               fclose($this->fp);

               return false;

             }



             fputs($this->fp, "From: hylpro <$from>\r\n");

             fputs($this->fp,"To: $to <$to>\r\n");

             fputs($this->fp, "Mime-Version: 1.0\r\n");

             fputs($this->fp, "Subject: $subject\r\n");

             fputs($this->fp, "Context-Type : text/plain;\r\n");

             fputs($this->fp, "   charset = \"GB2312\" \r\n ");

             fputs($this->fp, "Content-Transfer-Encoding : quoted--printable ;\r\n");



             fputs($this->fp, "$message\r\n");

             fputs($this->fp, "       \r\n");

             fputs($this->fp, "       \r\n");

             fputs($this->fp, ".\r\n"); //end





             $this->show_debug($message, "out");

              echo "<br>";

             $this->show_debug(".\r\n", "out");   //以只含点的行结束数据传送





             $this->wait("250");   这里总是返回 system busy 



             if(!$this->do_command("QUIT", "250"))

             {

               fclose($this->fp);

               return false;

             }



             fclose($this->fp);



     }

     return true;

   } //end if($this->fp)

   else

   {

       $this->show_debug("Connect failed!", "in");

       return false;

   }

 } //end send



} //end class





?>