text: <?php
  /**
   * PHPMailer RFC821 SMTP email transport class.
   * Version 5.2.7
   * PHP version 5.0.0
   * @category  PHP
   * @package   PHPMailer
   * @link      https://github.com/PHPMailer/PHPMailer/
   * @author Marcus Bointon (coolbru) <phpmailer@synchromedia.co.uk>
   * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
   * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
   * @copyright 2013 Marcus Bointon
   * @copyright 2004 - 2008 Andy Prevost
   * @copyright 2010 - 2012 Jim Jagielski
   * @license   http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)
   */
  
  /**
   * PHPMailer RFC821 SMTP email transport class.
   *
   * Implements RFC 821 SMTP commands
   * and provides some utility methods for sending mail to an SMTP server.
   *
   * PHP Version 5.0.0
   *
   * @category PHP
   * @package  PHPMailer
   * @link     https://github.com/PHPMailer/PHPMailer/blob/master/class.smtp.php
   * @author   Chris Ryan <unknown@example.com>
   * @author   Marcus Bointon <phpmailer@synchromedia.co.uk>
   * @license  http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)
   */
  
  class SMTP
  {
      /**
       * The PHPMailer SMTP Version number.
       */
      const VERSION = '5.2.7';
  
      /**
       * SMTP line break constant.
       */
      const CRLF = "\r\n";
  
      /**
       * The SMTP port to use if one is not specified.
       */
      const DEFAULT_SMTP_PORT = 25;
  
      /**
       * The PHPMailer SMTP Version number.
       * @type string
       * @deprecated This should be a constant
       * @see SMTP::VERSION
       */
      public $Version = '5.2.7';
  
      /**
       * SMTP server port number.
       * @type int
       * @deprecated This is only ever ued as default value, so should be a constant
       * @see SMTP::DEFAULT_SMTP_PORT
       */
      public $SMTP_PORT = 25;
  
      /**
       * SMTP reply line ending
       * @type string
       * @deprecated Use the class constant instead
       * @see SMTP::CRLF
       */
      public $CRLF = "\r\n";
  
      /**
       * Debug output level.
       * Options: 0 for no output, 1 for commands, 2 for data and commands
       * @type int
       */
      public $do_debug = 0;
  
      /**
       * The function/method to use for debugging output.
       * Options: 'echo', 'html' or 'error_log'
       * @type string
       */
      public $Debugoutput = 'echo';
  
      /**
       * Whether to use VERP.
       * @type bool
       */
      public $do_verp = false;
  
      /**
       * The SMTP timeout value for reads, in seconds.
       * @type int
       */
      public $Timeout = 15;
  
      /**
       * The SMTP timelimit value for reads, in seconds.
       * @type int
       */
      public $Timelimit = 30;
  
      /**
       * The socket for the server connection.
       * @type resource
       */
      protected $smtp_conn;
  
      /**
       * Error message, if any, for the last call.
       * @type string
       */
      protected $error = '';
  
      /**
       * The reply the server sent to us for HELO.
       * @type string
       */
      protected $helo_rply = '';
  
      /**
       * The most recent reply received from the server.
       * @type string
       */
      protected $last_reply = '';
  
      /**
       * Constructor.
       * @access public
       */
      public function __construct()
      {
          $this->smtp_conn = 0;
          $this->error = null;
          $this->helo_rply = null;
  
          $this->do_debug = 0;
      }
  
      /**
       * Output debugging info via a user-selected method.
       * @param string $str Debug string to output
       * @return void
       */
      protected function edebug($str)
      {
          switch ($this->Debugoutput) {
              case 'error_log':
                  //Don't output, just log
                  error_log($str);
                  break;
              case 'html':
                  //Cleans up output a bit for a better looking, HTML-safe output
                  echo htmlentities(
                      preg_replace('/[\r\n]+/', '', $str),
                      ENT_QUOTES,
                      'UTF-8'
                  )
                  . "<br>\n";
                  break;
              case 'echo':
              default:
                  //Just echoes whatever was received
                  echo $str;
          }
      }
  
      /**
       * Connect to an SMTP server.
       * @param string $host    SMTP server IP or host name
       * @param int $port    The port number to connect to
       * @param int $timeout How long to wait for the connection to open
       * @param array $options An array of options for stream_context_create()
       * @access public
       * @return bool
       */
      public function connect($host, $port = null, $timeout = 30, $options = array())
      {
          // Clear errors to avoid confusion
          $this->error = null;
  
          // Make sure we are __not__ connected
          if ($this->connected()) {
              // Already connected, generate error
              $this->error = array('error' => 'Already connected to a server');
              return false;
          }
  
          if (empty($port)) {
              $port = self::DEFAULT_SMTP_PORT;
          }
  
          // Connect to the SMTP server
          $errno = 0;
          $errstr = '';
          $socket_context = stream_context_create($options);
          //Suppress errors; connection failures are handled at a higher level
          $this->smtp_conn = @stream_socket_client(
              $host . ":" . $port,
              $errno,
              $errstr,
              $timeout,
              STREAM_CLIENT_CONNECT,
              $socket_context
          );
  
          // Verify we connected properly
          if (empty($this->smtp_conn)) {
              $this->error = array(
                  'error' => 'Failed to connect to server',
                  'errno' => $errno,
                  'errstr' => $errstr
              );
              if ($this->do_debug >= 1) {
                  $this->edebug(
                      'SMTP -> ERROR: ' . $this->error['error']
                      . ": $errstr ($errno)"
                  );
              }
              return false;
          }
  
          // SMTP server can take longer to respond, give longer timeout for first read
          // Windows does not have support for this timeout function
          if (substr(PHP_OS, 0, 3) != 'WIN') {
              $max = ini_get('max_execution_time');
              if ($max != 0 && $timeout > $max) { // Don't bother if unlimited
                  @set_time_limit($timeout);
              }
              stream_set_timeout($this->smtp_conn, $timeout, 0);
          }
  
          // Get any announcement
          $announce = $this->get_lines();
  
          if ($this->do_debug >= 2) {
              $this->edebug('SMTP -> FROM SERVER:' . $announce);
          }
  
          return true;
      }
  
      /**
       * Initiate a TLS (encrypted) session.
       * @access public
       * @return bool
       */
      public function startTLS()
      {
          if (!$this->sendCommand("STARTTLS", "STARTTLS", 220)) {
              return false;
          }
          // Begin encrypted connection
          if (!stream_socket_enable_crypto(
              $this->smtp_conn,
              true,
              STREAM_CRYPTO_METHOD_TLS_CLIENT
          )
          ) {
              return false;
          }
          return true;
      }
  
      /**
       * Perform SMTP authentication.
       * Must be run after hello().
       * @see hello()
       * @param string $username    The user name
       * @param string $password    The password
       * @param string $authtype    The auth type (PLAIN, LOGIN, NTLM, CRAM-MD5)
       * @param string $realm       The auth realm for NTLM
       * @param string $workstation The auth workstation for NTLM
       * @access public
       * @return bool True if successfully authenticated.
       */
      public function authenticate(
          $username,
          $password,
          $authtype = 'LOGIN',
          $realm = '',
          $workstation = ''
      ) {
          if (empty($authtype)) {
              $authtype = 'LOGIN';
          }
  
          switch ($authtype) {
              case 'PLAIN':
                  // Start authentication
                  if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) {
                      return false;
                  }
                  // Send encoded username and password
                  if (!$this->sendCommand(
                      'User & Password',
                      base64_encode("\0" . $username . "\0" . $password),
                      235
                  )
                  ) {
                      return false;
                  }
                  break;
              case 'LOGIN':
                  // Start authentication
                  if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) {
                      return false;
                  }
                  if (!$this->sendCommand("Username", base64_encode($username), 334)) {
                      return false;
                  }
                  if (!$this->sendCommand("Password", base64_encode($password), 235)) {
                      return false;
                  }
                  break;
              case 'NTLM':
                  /*
                   * ntlm_sasl_client.php
                   * Bundled with Permission
                   *
                   * How to telnet in windows:
                   * http://technet.microsoft.com/en-us/library/aa995718%28EXCHG.65%29.aspx
                   * PROTOCOL Docs http://curl.haxx.se/rfc/ntlm.html#ntlmSmtpAuthentication
                   */
                  require_once 'extras/ntlm_sasl_client.php';
                  $temp = new stdClass();
                  $ntlm_client = new ntlm_sasl_client_class;
                  //Check that functions are available
                  if (!$ntlm_client->Initialize($temp)) {
                      $this->error = array('error' => $temp->error);
                      if ($this->do_debug >= 1) {
                          $this->edebug(
                              'You need to enable some modules in your php.ini file: '
                              . $this->error['error']
                          );
                      }
                      return false;
                  }
                  //msg1
                  $msg1 = $ntlm_client->TypeMsg1($realm, $workstation); //msg1
  
                  if (!$this->sendCommand(
                      'AUTH NTLM',
                      'AUTH NTLM ' . base64_encode($msg1),
                      334
                  )
                  ) {
                      return false;
                  }
  
                  //Though 0 based, there is a white space after the 3 digit number
                  //msg2
                  $challenge = substr($this->last_reply, 3);
                  $challenge = base64_decode($challenge);
                  $ntlm_res = $ntlm_client->NTLMResponse(
                      substr($challenge, 24, 8),
                      $password
                  );
                  //msg3
                  $msg3 = $ntlm_client->TypeMsg3(
                      $ntlm_res,
                      $username,
                      $realm,
                      $workstation
                  );
                  // send encoded username
                  return $this->sendCommand('Username', base64_encode($msg3), 235);
                  break;
              case 'CRAM-MD5':
                  // Start authentication
                  if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) {
                      return false;
                  }
                  // Get the challenge
                  $challenge = base64_decode(substr($this->last_reply, 4));
  
                  // Build the response
                  $response = $username . ' ' . $this->hmac($challenge, $password);
  
                  // send encoded credentials
                  return $this->sendCommand('Username', base64_encode($response), 235);
                  break;
          }
          return true;
      }
  
      /**
       * Calculate an MD5 HMAC hash.
       * Works like hash_hmac('md5', $data, $key)
       * in case that function is not available
       * @param string $data The data to hash
       * @param string $key  The key to hash with
       * @access protected
       * @return string
       */
      protected function hmac($data, $key)
      {
          if (function_exists('hash_hmac')) {
              return hash_hmac('md5', $data, $key);
          }
  
          // The following borrowed from
          // http://php.net/manual/en/function.mhash.php#27225
  
          // RFC 2104 HMAC implementation for php.
          // Creates an md5 HMAC.
          // Eliminates the need to install mhash to compute a HMAC
          // by Lance Rushing
  
          $b = 64; // byte length for md5
          if (strlen($key) > $b) {
              $key = pack('H*', md5($key));
          }
          $key = str_pad($key, $b, chr(0x00));
          $ipad = str_pad('', $b, chr(0x36));
          $opad = str_pad('', $b, chr(0x5c));
          $k_ipad = $key ^ $ipad;
          $k_opad = $key ^ $opad;
  
          return md5($k_opad . pack('H*', md5($k_ipad . $data)));
      }
  
      /**
       * Check connection state.
       * @access public
       * @return bool True if connected.
       */
      public function connected()
      {
          if (!empty($this->smtp_conn)) {
              $sock_status = stream_get_meta_data($this->smtp_conn);
              if ($sock_status['eof']) {
                  // the socket is valid but we are not connected
                  if ($this->do_debug >= 1) {
                      $this->edebug(
                          'SMTP -> NOTICE: EOF caught while checking if connected'
                      );
                  }
                  $this->close();
                  return false;
              }
              return true; // everything looks good
          }
          return false;
      }
  
      /**
       * Close the socket and clean up the state of the class.
       * Don't use this function without first trying to use QUIT.
       * @see quit()
       * @access public
       * @return void
       */
      public function close()
      {
          $this->error = null; // so there is no confusion
          $this->helo_rply = null;
          if (!empty($this->smtp_conn)) {
              // close the connection and cleanup
              fclose($this->smtp_conn);
              $this->smtp_conn = 0;
          }
      }
  
      /**
       * Send an SMTP DATA command.
       * Issues a data command and sends the msg_data to the server,
       * finializing the mail transaction. $msg_data is the message
       * that is to be send with the headers. Each header needs to be
       * on a single line followed by a <CRLF> with the message headers
       * and the message body being separated by and additional <CRLF>.
       * Implements rfc 821: DATA <CRLF>
       * @param string $msg_data Message data to send
       * @access public
       * @return bool
       */
      public function data($msg_data)
      {
          if (!$this->sendCommand('DATA', 'DATA', 354)) {
              return false;
          }
  
          /* The server is ready to accept data!
           * according to rfc821 we should not send more than 1000
           * including the CRLF
           * characters on a single line so we will break the data up
           * into lines by \r and/or \n then if needed we will break
           * each of those into smaller lines to fit within the limit.
           * in addition we will be looking for lines that start with
           * a period '.' and append and additional period '.' to that
           * line. NOTE: this does not count towards limit.
           */
  
          // Normalize the line breaks before exploding
          $msg_data = str_replace("\r\n", "\n", $msg_data);
          $msg_data = str_replace("\r", "\n", $msg_data);
          $lines = explode("\n", $msg_data);
  
          /* We need to find a good way to determine if headers are
           * in the msg_data or if it is a straight msg body
           * currently I am assuming rfc822 definitions of msg headers
           * and if the first field of the first line (':' separated)
           * does not contain a space then it _should_ be a header
           * and we can process all lines before a blank "" line as
           * headers.
           */
  
          $field = substr($lines[0], 0, strpos($lines[0], ':'));
          $in_headers = false;
          if (!empty($field) && !strstr($field, ' ')) {
              $in_headers = true;
          }
  
          //RFC 2822 section 2.1.1 limit
          $max_line_length = 998;
  
          foreach ($lines as $line) {
              $lines_out = null;
              if ($line == '' && $in_headers) {
                  $in_headers = false;
              }
              // ok we need to break this line up into several smaller lines
              while (strlen($line) > $max_line_length) {
                  $pos = strrpos(substr($line, 0, $max_line_length), ' ');
  
                  // Patch to fix DOS attack
                  if (!$pos) {
                      $pos = $max_line_length - 1;
                      $lines_out[] = substr($line, 0, $pos);
                      $line = substr($line, $pos);
                  } else {
                      $lines_out[] = substr($line, 0, $pos);
                      $line = substr($line, $pos + 1);
                  }
  
                  /* If processing headers add a LWSP-char to the front of new line
                   * rfc822 on long msg headers
                   */
                  if ($in_headers) {
                      $line = "\t" . $line;
                  }
              }
              $lines_out[] = $line;
  
              // send the lines to the server
              while (list(, $line_out) = @each($lines_out)) {
                  if (strlen($line_out) > 0) {
                      if (substr($line_out, 0, 1) == '.') {
                          $line_out = '.' . $line_out;
                      }
                  }
                  $this->client_send($line_out . self::CRLF);
              }
          }
  
          // Message data has been sent, complete the command
          return $this->sendCommand('DATA END', '.', 250);
      }
  
      /**
       * Send an SMTP HELO or EHLO command.
       * Used to identify the sending server to the receiving server.
       * This makes sure that client and server are in a known state.
       * Implements from RFC 821: HELO <SP> <domain> <CRLF>
       * and RFC 2821 EHLO.
       * @param string $host The host name or IP to connect to
       * @access public
       * @return bool
       */
      public function hello($host = '')
      {
          // Try extended hello first (RFC 2821)
          if (!$this->sendHello('EHLO', $host)) {
              if (!$this->sendHello('HELO', $host)) {
                  return false;
              }
          }
  
          return true;
      }
  
      /**
       * Send an SMTP HELO or EHLO command.
       * Low-level implementation used by hello()
       * @see hello()
       * @param string $hello The HELO string
       * @param string $host  The hostname to say we are
       * @access protected
       * @return bool
       */
      protected function sendHello($hello, $host)
      {
          $noerror = $this->sendCommand($hello, $hello . ' ' . $host, 250);
          $this->helo_rply = $this->last_reply;
          return $noerror;
      }
  
      /**
       * Send an SMTP MAIL command.
       * Starts a mail transaction from the email address specified in
       * $from. Returns true if successful or false otherwise. If True
       * the mail transaction is started and then one or more recipient
       * commands may be called followed by a data command.
       * Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>
       * @param string $from Source address of this message
       * @access public
       * @return bool
       */
      public function mail($from)
      {
          $useVerp = ($this->do_verp ? ' XVERP' : '');
          return $this->sendCommand(
              'MAIL FROM',
              'MAIL FROM:<' . $from . '>' . $useVerp,
              250
          );
      }
  
      /**
       * Send an SMTP QUIT command.
       * Closes the socket if there is no error or the $close_on_error argument is true.
       * Implements from rfc 821: QUIT <CRLF>
       * @param bool $close_on_error Should the connection close if an error occurs?
       * @access public
       * @return bool
       */
      public function quit($close_on_error = true)
      {
          $noerror = $this->sendCommand('QUIT', 'QUIT', 221);
          $e = $this->error; //Save any error
          if ($noerror or $close_on_error) {
              $this->close();
              $this->error = $e; //Restore any error from the quit command
          }
          return $noerror;
      }
  
      /**
       * Send an SMTP RCPT command.
       * Sets the TO argument to $to.
       * Returns true if the recipient was accepted false if it was rejected.
       * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
       * @param string $to The address the message is being sent to
       * @access public
       * @return bool
       */
      public function recipient($to)
      {
          return $this->sendCommand(
              'RCPT TO ',
              'RCPT TO:<' . $to . '>',
              array(250, 251)
          );
      }
  
      /**
       * Send an SMTP RSET command.
       * Abort any transaction that is currently in progress.
       * Implements rfc 821: RSET <CRLF>
       * @access public
       * @return bool True on success.
       */
      public function reset()
      {
          return $this->sendCommand('RSET', 'RSET', 250);
      }
  
      /**
       * Send a command to an SMTP server and check its return code.
       * @param string $command       The command name - not sent to the server
       * @param string $commandstring The actual command to send
       * @param int|array $expect     One or more expected integer success codes
       * @access protected
       * @return bool True on success.
       */
      protected function sendCommand($command, $commandstring, $expect)
      {
          if (!$this->connected()) {
              $this->error = array(
                  "error" => "Called $command without being connected"
              );
              return false;
          }
          $this->client_send($commandstring . self::CRLF);
  
          $reply = $this->get_lines();
          $code = substr($reply, 0, 3);
  
          if ($this->do_debug >= 2) {
              $this->edebug('SMTP -> FROM SERVER:' . $reply);
          }
  
          if (!in_array($code, (array)$expect)) {
              $this->last_reply = null;
              $this->error = array(
                  "error" => "$command command failed",
                  "smtp_code" => $code,
                  "detail" => substr($reply, 4)
              );
              if ($this->do_debug >= 1) {
                  $this->edebug(
                      'SMTP -> ERROR: ' . $this->error['error'] . ': ' . $reply
                  );
              }
              return false;
          }
  
          $this->last_reply = $reply;
          $this->error = null;
          return true;
      }
  
      /**
       * Send an SMTP SAML command.
       * Starts a mail transaction from the email address specified in $from.
       * Returns true if successful or false otherwise. If True
       * the mail transaction is started and then one or more recipient
       * commands may be called followed by a data command. This command
       * will send the message to the users terminal if they are logged
       * in and send them an email.
       * Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>
       * @param string $from The address the message is from
       * @access public
       * @return bool
       */
      public function sendAndMail($from)
      {
          return $this->sendCommand("SAML", "SAML FROM:$from", 250);
      }
  
      /**
       * Send an SMTP VRFY command.
       * @param string $name The name to verify
       * @access public
       * @return bool
       */
      public function verify($name)
      {
          return $this->sendCommand("VRFY", "VRFY $name", array(250, 251));
      }
  
      /**
       * Send an SMTP NOOP command.
       * Used to keep keep-alives alive, doesn't actually do anything
       * @access public
       * @return bool
       */
      public function noop()
      {
          return $this->sendCommand("NOOP", "NOOP", 250);
      }
  
      /**
       * Send an SMTP TURN command.
       * This is an optional command for SMTP that this class does not support.
       * This method is here to make the RFC821 Definition
       * complete for this class and __may__ be implemented in future
       * Implements from rfc 821: TURN <CRLF>
       * @access public
       * @return bool
       */
      public function turn()
      {
          $this->error = array(
              'error' => 'The SMTP TURN command is not implemented'
          );
          if ($this->do_debug >= 1) {
              $this->edebug('SMTP -> NOTICE: ' . $this->error['error']);
          }
          return false;
      }
  
      /**
       * Send raw data to the server.
       * @param string $data The data to send
       * @access public
       * @return int|bool The number of bytes sent to the server or FALSE on error
       */
      public function client_send($data)
      {
          if ($this->do_debug >= 1) {
              $this->edebug("CLIENT -> SMTP: $data");
          }
          return fwrite($this->smtp_conn, $data);
      }
  
      /**
       * Get the latest error.
       * @access public
       * @return array
       */
      public function getError()
      {
          return $this->error;
      }
  
      /**
       * Get the last reply from the server.
       * @access public
       * @return string
       */
      public function getLastReply()
      {
          return $this->last_reply;
      }
  
      /**
       * Read the SMTP server's response.
       * Either before eof or socket timeout occurs on the operation.
       * With SMTP we can tell if we have more lines to read if the
       * 4th character is '-' symbol. If it is a space then we don't
       * need to read anything else.
       * @access protected
       * @return string
       */
      protected function get_lines()
      {
          $data = '';
          $endtime = 0;
          // If the connection is bad, give up now
          if (!is_resource($this->smtp_conn)) {
              return $data;
          }
          stream_set_timeout($this->smtp_conn, $this->Timeout);
          if ($this->Timelimit > 0) {
              $endtime = time() + $this->Timelimit;
          }
          while (is_resource($this->smtp_conn) && !feof($this->smtp_conn)) {
              $str = @fgets($this->smtp_conn, 515);
              if ($this->do_debug >= 4) {
                  $this->edebug("SMTP -> get_lines(): \$data was \"$data\"");
                  $this->edebug("SMTP -> get_lines(): \$str is \"$str\"");
              }
              $data .= $str;
              if ($this->do_debug >= 4) {
                  $this->edebug("SMTP -> get_lines(): \$data is \"$data\"");
              }
              // if 4th character is a space, we are done reading, break the loop
              if (substr($str, 3, 1) == ' ') {
                  break;
              }
              // Timed-out? Log and break
              $info = stream_get_meta_data($this->smtp_conn);
              if ($info['timed_out']) {
                  if ($this->do_debug >= 4) {
                      $this->edebug(
                          'SMTP -> get_lines(): timed-out (' . $this->Timeout . ' sec)'
                      );
                  }
                  break;
              }
              // Now check if reads took too long
              if ($endtime) {
                  if (time() > $endtime) {
                      if ($this->do_debug >= 4) {
                          $this->edebug(
                              'SMTP -> get_lines(): timelimit reached ('
                              . $this->Timelimit . ' sec)'
                          );
                      }
                      break;
                  }
              }
          }
          return $data;
      }
  
      /**
       * Enable or disable VERP address generation.
       * @param bool $enabled
       */
      public function setVerp($enabled = false)
      {
          $this->do_verp = $enabled;
      }
  
      /**
       * Get VERP address generation mode.
       * @return bool
       */
      public function getVerp()
      {
          return $this->do_verp;
      }
  
      /**
       * Set debug output method.
       * @param string $method The function/method to use for debugging output.
       */
      public function setDebugOutput($method = 'echo')
      {
          $this->Debugoutput = $method;
      }
  
      /**
       * Get debug output method.
       * @return string
       */
      public function getDebugOutput()
      {
          return $this->Debugoutput;
      }
  
      /**
       * Set debug output level.
       * @param int $level
       */
      public function setDebugLevel($level = 0)
      {
          $this->do_debug = $level;
      }
  
      /**
       * Get debug output level.
       * @return int
       */
      public function getDebugLevel()
      {
          return $this->do_debug;
      }
  
      /**
       * Set SMTP timeout.
       * @param int $timeout
       */
      public function setTimeout($timeout = 0)
      {
          $this->Timeout = $timeout;
      }
  
      /**
       * Get SMTP timeout.
       * @return int
       */
      public function getTimeout()
      {
          return $this->Timeout;
      }
  }
  