title: php smtp server
body: <p>I am tring to send an email with PHP through telnet but somthing going wrong here.</p>
  
  <pre><code>$telnet = array();
  $telnet[0] = "telnet 10.0.50.6 25\r\n";
  $telnet[1] = "HELO osiris.com\r\n";
  $telnet[2] = "MAIL FROM:$replyTo\r\n";
  $telnet[3] = "RCPT TO:$emailsTo\r\n";
  $telnet[4] = "DATA\r\n";
  $telnet[5] = "From:$headers&lt;$replyTo&gt; \r\n To:$emailsTo\r\n Subject:$emailSubject\r\n        $body\r\n\r\n .\r\n";
  
  @$fp = fsockopen('10.0.50.6', 25);
  
  $count=0;
  
  if (!$fp){
  echo 'connection fail';
  
  return false;   
  }else{
  
  
      foreach ($telnet as $current) {         
      fwrite($fp, $current);
      $smtpOutput=fgets($fp);
      $g=substr($smtpOutput, 0, 3);
  
  
          if (!(($g == "220") || ($g == "250") || ($g == "354")|| ($g == "500"))) {
          echo 'connection 2 fail';
               return false; 
      }else{
          $count=$count+1;
          echo $count.'&lt;br&gt;';
          if ($count&gt;5){
              fclose($fp);
              return true;
          }
      }
  </code></pre>
  
  <p><strong>the result is:</strong></p>
  
  <pre><code>telnet 10.0.50.6 25 
  220 afcc-ex-il1.rsa-otms.com Microsoft ESMTP MAIL Service ready at Sat, 30 Mar 2013 19:01:12 +0000 
  220
  1
  HELO osiris.com 
  500 5.3.3 Unrecognized command 
  500
  2
  MAIL FROM:afcc@rsa.com 
  250 afcc-ex-il1.rsa-otms.com Hello [10.0.70.22] 
  250
  3
  RCPT TO:cfir@carmeli.me 
  250 2.1.0 Sender OK 
  250
  4
  DATA 
  250 2.1.5 Recipient OK 
  250
  5
  From:cfir To:cfir@carmeli.me Subject:test test
  354 Start mail input; end with . 
  354
  6
  </code></pre>