<?php

/* ~ class.phpmailer.php
  .---------------------------------------------------------------------------.
  |  Software: PHPMailer - PHP email class                                    |
  |   Version: 5.1                                                            |
  |   Contact: via sourceforge.net support pages (also www.worxware.com)      |
  |      Info: http://phpmailer.sourceforge.net                               |
  |   Support: http://sourceforge.net/projects/phpmailer/                     |
  | ------------------------------------------------------------------------- |
  |     Admin: Andy Prevost (project admininistrator)                         |
  |   Authors: Andy Prevost (codeworxtech) codeworxtech@users.sourceforge.net |
  |          : Marcus Bointon (coolbru) coolbru@users.sourceforge.net         |
  |   Founder: Brent R. Matzelle (original founder)                           |
  | Copyright (c) 2004-2009, Andy Prevost. All Rights Reserved.               |
  | Copyright (c) 2001-2003, Brent R. Matzelle                                |
  | ------------------------------------------------------------------------- |
  |   License: Distributed under the Lesser General Public License (LGPL)     |
  |            http://www.gnu.org/copyleft/lesser.html                        |
  | This program is distributed in the hope that it will be useful - WITHOUT  |
  | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     |
  | FITNESS FOR A PARTICULAR PURPOSE.                                         |
  | ------------------------------------------------------------------------- |
  | We offer a number of paid services (www.worxware.com):                    |
  | - Web Hosting on highly optimized fast and secure servers                 |
  | - Technology Consulting                                                   |
  | - Oursourcing (highly qualified programmers and graphic designers)        |
  '---------------------------------------------------------------------------'
 */

/**
 * PHPMailer - PHP email transport class
 * NOTE: Requires PHP version 5 or later
 * @package PHPMailer
 * @author Andy Prevost
 * @author Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
 * @version $Id: class.phpmailer.php 447 2009-05-25 01:36:38Z codeworxtech $
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 */
if ( version_compare(PHP_VERSION, '5.0.0', '<') )
        exit("Sorry, this version of PHPMailer will only run on PHP version 5 or greater!\n");

class PHPMailer
{
    /////////////////////////////////////////////////
    // PROPERTIES, PUBLIC
    /////////////////////////////////////////////////
    /**
     * Email priority (1 = High, 3 = Normal, 5 = low).
     * @var int
     */
    public $Priority = 3;

    /**
     * Sets the CharSet of the message.
     * @var string
     */
    public $CharSet = 'iso-8859-1';

    /**
     * Sets the Content-type of the message.
     * @var string
     */
    public $ContentType = 'text/plain';

    /**
     * Sets the Encoding of the message. Options for this are
     *  "8bit", "7bit", "binary", "base64", and "quoted-printable".
     * @var string
     */
    public $Encoding = '8bit';

    /**
     * Holds the most recent mailer error message.
     * @var string
     */
    public $ErrorInfo = '';

    /**
     * Sets the From email address for the message.
     * @var string
     */
    public $From = 'root@localhost';

    /**
     * Sets the From name of the message.
     * @var string
     */
    public $FromName = 'Root User';

    /**
     * Sets the Sender email (Return-Path) of the message.  If not empty,
     * will be sent via -f to sendmail or as 'MAIL FROM' in smtp mode.
     * @var string
     */
    public $Sender = '';

    /**
     * Sets the Subject of the message.
     * @var string
     */
    public $Subject = '';

    /**
     * Sets the Body of the message.  This can be either an HTML or text body.
     * If HTML then run IsHTML(true).
     * @var string
     */
    public $Body = '';

    /**
     * Sets the text-only body of the message.  This automatically sets the
     * email to multipart/alternative.  This body can be read by mail
     * clients that do not have HTML email capability such as mutt. Clients
     * that can read HTML will view the normal Body.
     * @var string
     */
    public $AltBody = '';

    /**
     * Sets word wrapping on the body of the message to a given number of
     * characters.
     * @var int
     */
    public $WordWrap = 0;

    /**
     * Method to send mail: ("mail", "sendmail", or "smtp").
     * @var string
     */
    public $Mailer = 'mail';

    /**
     * Sets the path of the sendmail program.
     * @var string
     */
    public $Sendmail = '/usr/sbin/sendmail';

    /**
     * Path to PHPMailer plugins.  Useful if the SMTP class
     * is in a different directory than the PHP include path.
     * @var string
     */
    public $PluginDir = '';

    /**
     * Sets the email address that a reading confirmation will be sent.
     * @var string
     */
    public $ConfirmReadingTo = '';

    /**
     * Sets the hostname to use in Message-Id and Received headers
     * and as default HELO string. If empty, the value returned
     * by SERVER_NAME is used or 'localhost.localdomain'.
     * @var string
     */
    public $Hostname = '';

    /**
     * Sets the message ID to be used in the Message-Id header.
     * If empty, a unique id will be generated.
     * @var string
     */
    public $MessageID = '';

    /////////////////////////////////////////////////
    // PROPERTIES FOR SMTP
    /////////////////////////////////////////////////

    /**
     * Sets the SMTP hosts.  All hosts must be separated by a
     * semicolon.  You can also specify a different port
     * for each host by using this format: [hostname:port]
     * (e.g. "smtp1.example.com:25;smtp2.example.com").
     * Hosts will be tried in order.
     * @var string
     */
    public $Host = 'localhost';

    /**
     * Sets the default SMTP server port.
     * @var int
     */
    public $Port = 25;

    /**
     * Sets the SMTP HELO of the message (Default is $Hostname).
     * @var string
     */
    public $Helo = '';

    /**
     * Sets connection prefix.
     * Options are "", "ssl" or "tls"
     * @var string
     */
    public $SMTPSecure = '';

    /**
     * Sets SMTP authentication. Utilizes the Username and Password variables.
     * @var bool
     */
    public $SMTPAuth = false;

    /**
     * Sets SMTP username.
     * @var string
     */
    public $Username = '';

    /**
     * Sets SMTP password.
     * @var string
     */
    public $Password = '';

    /**
     * Sets the SMTP server timeout in seconds.
     * This function will not work with the win32 version.
     * @var int
     */
    public $Timeout = 10;

    /**
     * Sets SMTP class debugging on or off.
     * @var bool
     */
    public $SMTPDebug = false;

    /**
     * Prevents the SMTP connection from being closed after each mail
     * sending.  If this is set to true then to close the connection
     * requires an explicit call to SmtpClose().
     * @var bool
     */
    public $SMTPKeepAlive = false;

    /**
     * Provides the ability to have the TO field process individual
     * emails, instead of sending to entire TO addresses
     * @var bool
     */
    public $SingleTo = false;

    /**
     * If SingleTo is true, this provides the array to hold the email addresses
     * @var bool
     */
    public $SingleToArray = array( );

    /**
     * Provides the ability to change the line ending
     * @var string
     */
    public $LE = "\n";

    /**
     * Used with DKIM DNS Resource Record
     * @var string
     */
    public $DKIM_selector = 'phpmailer';

    /**
     * Used with DKIM DNS Resource Record
     * optional, in format of email address 'you@yourdomain.com'
     * @var string
     */
    public $DKIM_identity = '';

    /**
     * Used with DKIM DNS Resource Record
     * optional, in format of email address 'you@yourdomain.com'
     * @var string
     */
    public $DKIM_domain = '';

    /**
     * Used with DKIM DNS Resource Record
     * optional, in format of email address 'you@yourdomain.com'
     * @var string
     */
    public $DKIM_private = '';

    /**
     * Callback Action function name
     * the function that handles the result of the send email action. Parameters:
     *   bool    $result        result of the send action
     *   string  $to            email address of the recipient
     *   string  $cc            cc email addresses
     *   string  $bcc           bcc email addresses
     *   string  $subject       the subject
     *   string  $body          the email body
     * @var string
     */
    public $action_function = ''; //'callbackAction';

    /**
     * Sets the PHPMailer Version number
     * @var string
     */
    public $Version = '5.1';
    /////////////////////////////////////////////////
    // PROPERTIES, PRIVATE AND PROTECTED
    /////////////////////////////////////////////////

    private $smtp = NULL;
    private $to = array( );
    private $cc = array( );
    private $bcc = array( );
    private $ReplyTo = array( );
    protected $all_recipients = array( );
    private $attachment = array( );
    private $CustomHeader = array( );
    private $message_type = '';
    private $boundary = array( );
    protected $language = array( );
    private $error_count = 0;
    private $sign_cert_file = "";
    private $sign_key_file = "";
    private $sign_key_pass = "";
    private $exceptions = false;

    /////////////////////////////////////////////////
    // CONSTANTS
    /////////////////////////////////////////////////
    const STOP_MESSAGE = 0; // message only, continue processing
    const STOP_CONTINUE = 1; // message?, likely ok to continue processing
    const STOP_CRITICAL = 2; // message, plus full stop, critical error reached

    /////////////////////////////////////////////////
    // METHODS, VARIABLES
    /////////////////////////////////////////////////

    /**
     * Constructor
     * @param boolean $exceptions Should we throw external exceptions?
     */
    public function __construct($exceptions = false)
    {
        $this->exceptions = ($exceptions == true);
    }

    /**
     * Sets message type to HTML.
     * @param bool $ishtml
     * @return void
     */
    public function IsHTML($ishtml = true)
    {
        if ( $ishtml )
        {
            $this->ContentType = 'text/html';
        }
        else
        {
            $this->ContentType = 'text/plain';
        }
    }

    /**
     * Sets Mailer to send message using SMTP.
     * @return void
     */
    public function IsSMTP()
    {
        $this->Mailer = 'smtp';
    }

    /**
     * Sets Mailer to send message using PHP mail() function.
     * @return void
     */
    public function IsMail()
    {
        $this->Mailer = 'mail';
    }

    /**
     * Sets Mailer to send message using the $Sendmail program.
     * @return void
     */
    public function IsSendmail()
    {
        if ( !stristr(ini_get('sendmail_path'), 'sendmail') )
        {
            $this->Sendmail = '/var/qmail/bin/sendmail';
        }
        $this->Mailer = 'sendmail';
    }

    /**
     * Sets Mailer to send message using the qmail MTA.
     * @return void
     */
    public function IsQmail()
    {
        if ( stristr(ini_get('sendmail_path'), 'qmail') )
        {
            $this->Sendmail = '/var/qmail/bin/sendmail';
        }
        $this->Mailer = 'sendmail';
    }
    /////////////////////////////////////////////////
    // METHODS, RECIPIENTS
    /////////////////////////////////////////////////

    /**
     * Adds a "To" address.
     * @param string $address
     * @param string $name
     * @return boolean true on success, false if address already used
     */
    public function AddAddress($address, $name = '')
    {
        return $this->AddAnAddress('to', $address, $name);
    }

    /**
     * Adds a "Cc" address.
     * Note: this function works with the SMTP mailer on win32, not with the "mail" mailer.
     * @param string $address
     * @param string $name
     * @return boolean true on success, false if address already used
     */
    public function AddCC($address, $name = '')
    {
        return $this->AddAnAddress('cc', $address, $name);
    }

    /**
     * Adds a "Bcc" address.
     * Note: this function works with the SMTP mailer on win32, not with the "mail" mailer.
     * @param string $address
     * @param string $name
     * @return boolean true on success, false if address already used
     */
    public function AddBCC($address, $name = '')
    {
        return $this->AddAnAddress('bcc', $address, $name);
    }

    /**
     * Adds a "Reply-to" address.
     * @param string $address
     * @param string $name
     * @return boolean
     */
    public function AddReplyTo($address, $name = '')
    {
        return $this->AddAnAddress('ReplyTo', $address, $name);
    }

    /**
     * Adds an address to one of the recipient arrays
     * Addresses that have been added already return false, but do not throw exceptions
     * @param string $kind One of 'to', 'cc', 'bcc', 'ReplyTo'
     * @param string $address The email address to send to
     * @param string $name
     * @return boolean true on success, false if address already used or invalid in some way
     * @access private
     */
    private function AddAnAddress($kind, $address, $name = '')
    {
        if ( !preg_match('/^(to|cc|bcc|ReplyTo)$/', $kind) )
        {
            //throw new Exception('Tipo de recipiente inválido: ' . kind);
            return false;
        }
        $address = trim($address);
        $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
        if ( !self::ValidateAddress($address) )
        {
            //throw new Exception($this->Lang('invalid_address') . ': ' . $address);
            return false;
        }
        if ( $kind != 'ReplyTo' )
        {
            if ( !isset($this->all_recipients[strtolower($address)]) )
            {
                array_push($this->$kind, array( $address, $name ));
                $this->all_recipients[strtolower($address)] = true;
                return true;
            }
        }
        else
        {
            if ( !array_key_exists(strtolower($address), $this->ReplyTo) )
            {
                $this->ReplyTo[strtolower($address)] = array( $address, $name );
                return true;
            }
        }
        return false;
    }

    /**
     * Set the From and FromName properties
     * @param string $address
     * @param string $name
     * @return boolean
     */
    public function SetFrom($address, $name = '', $auto = 1)
    {
        $address = trim($address);
        $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
        if ( !self::ValidateAddress($address) )
        {
            //throw new Exception($this->Lang('invalid_address') . ': ' . $address);
        }
        $this->From = $address;
        $this->FromName = $name;
        if ( $auto )
        {
            if ( empty($this->ReplyTo) )
            {
                $this->AddAnAddress('ReplyTo', $address, $name);
            }
            if ( empty($this->Sender) )
            {
                $this->Sender = $address;
            }
        }
        return true;
    }

    /**
     * Check that a string looks roughly like an email address should
     * Static so it can be used without instantiation
     * Tries to use PHP built-in validator in the filter extension (from PHP 5.2), falls back to a reasonably competent regex validator
     * Conforms approximately to RFC2822
     * @link http://www.hexillion.com/samples/#Regex Original pattern found here
     * @param string $address The email address to check
     * @return boolean
     * @static
     * @access public
     */
    public static function ValidateAddress($address)
    {
        if ( function_exists('filter_var') )
        { //Introduced in PHP 5.2
            if ( filter_var($address, FILTER_VALIDATE_EMAIL) === FALSE )
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        else
        {
            return preg_match('/^(?:[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+\.)*[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+@(?:(?:(?:[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!\.)){0,61}[a-zA-Z0-9_-]?\.)+[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!$)){0,61}[a-zA-Z0-9_]?)|(?:\[(?:(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\.){3}(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\]))$/', $address);
        }
    }
    /////////////////////////////////////////////////
    // METHODS, MAIL SENDING
    /////////////////////////////////////////////////

    /**
     * Creates message and assigns Mailer. If the message is
     * not sent successfully then it returns false.  Use the ErrorInfo
     * variable to view description of the error.
     * @return bool
     */
    public function Send()
    {
        try
        {
            if ( (count($this->to) + count($this->cc) + count($this->bcc)) < 1 )
            {
                throw new Exception($this->Lang('provide_address'), self::STOP_CRITICAL);
            }

            // Set whether the message is multipart/alternative
            if ( !empty($this->AltBody) )
            {
                $this->ContentType = 'multipart/alternative';
            }

            $this->error_count = 0; // reset errors
            $this->SetMessageType();
            $header = $this->CreateHeader();
            $body = $this->CreateBody();

            if ( empty($this->Body) )
            {
                throw new Exception($this->Lang('empty_message'), self::STOP_CRITICAL);
            }

            // digitally sign with DKIM if enabled
            if ( $this->DKIM_domain && $this->DKIM_private )
            {
                $header_dkim = $this->DKIM_Add($header, $this->Subject, $body);
                $header = str_replace("\r\n", "\n", $header_dkim) . $header;
            }
            
            // Choose the mailer and send through it
            switch ( $this->Mailer )
            {
                
                case 'sendmail':
                    return $this->SendmailSend($header, $body);
                case 'smtp':
                    return $this->SmtpSend($header, $body);
                default:
                    return $this->MailSend($header, $body);
            }
        }
        catch ( phpmailerException $e )
        {
            throw new Exception($e->getMessage());
            if ( $this->exceptions )
            {
                throw $e;
            }
            
            throw new Exception ( $e->getMessage() . "\n" );
            return false;
        }
    }

    /**
     * Sends mail using the $Sendmail program.
     * @param string $header The message headers
     * @param string $body The message body
     * @access protected
     * @return bool
     */
    protected function SendmailSend($header, $body)
    {
        if ( $this->Sender != '' )
        {
            $sendmail = sprintf("%s -oi -f %s -t", escapeshellcmd($this->Sendmail), escapeshellarg($this->Sender));
        }
        else
        {
            $sendmail = sprintf("%s -oi -t", escapeshellcmd($this->Sendmail));
        }
        if ( $this->SingleTo === true )
        {
            foreach ( $this->SingleToArray as $key => $val )
            {
                if ( !@$mail = popen($sendmail, 'w') )
                {
                    //throw new Exception($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
                }
                fputs($mail, "To: " . $val . "\n");
                fputs($mail, $header);
                fputs($mail, $body);
                $result = pclose($mail);
                // implement call back function if it exists
                $isSent = ($result == 0) ? 1 : 0;
                $this->doCallback($isSent, $val, $this->cc, $this->bcc, $this->Subject, $body);
                if ( $result != 0 )
                {
                    throw new Exception($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
                }
            }
        }
        else
        {
            if ( !@$mail = popen($sendmail, 'w') )
            {
                throw new Exception($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
            }
            fputs($mail, $header);
            fputs($mail, $body);
            $result = pclose($mail);
            // implement call back function if it exists
            $isSent = ($result == 0) ? 1 : 0;
            $this->doCallback($isSent, $this->to, $this->cc, $this->bcc, $this->Subject, $body);
            if ( $result != 0 )
            {
                throw new Exception($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
            }
        }
        return true;
    }

    /**
     * Sends mail using the PHP mail() function.
     * @param string $header The message headers
     * @param string $body The message body
     * @access protected
     * @return bool
     */
    protected function MailSend($header, $body)
    {
        $toArr = array( );
        foreach ( $this->to as $t )
        {
            $toArr[] = $this->AddrFormat($t);
        }
        $to = implode(', ', $toArr);

        $params = sprintf("-oi -f %s", $this->Sender);
        if ( $this->Sender != '' && strlen(ini_get('safe_mode')) < 1 )
        {
            $old_from = ini_get('sendmail_from');
            ini_set('sendmail_from', $this->Sender);
            if ( $this->SingleTo === true && count($toArr) > 1 )
            {
                foreach ( $toArr as $key => $val )
                {
                    $rt = @mail($val, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header, $params);
                    // implement call back function if it exists
                    $isSent = ($rt == 1) ? 1 : 0;
                    $this->doCallback($isSent, $val, $this->cc, $this->bcc, $this->Subject, $body);
                }
            }
            else
            {
                $rt = @mail($to, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header, $params);
                // implement call back function if it exists
                $isSent = ($rt == 1) ? 1 : 0;
                $this->doCallback($isSent, $to, $this->cc, $this->bcc, $this->Subject, $body);
            }
        }
        else
        {
            if ( $this->SingleTo === true && count($toArr) > 1 )
            {
                foreach ( $toArr as $key => $val )
                {
                    $rt = @mail($val, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header, $params);
                    // implement call back function if it exists
                    $isSent = ($rt == 1) ? 1 : 0;
                    $this->doCallback($isSent, $val, $this->cc, $this->bcc, $this->Subject, $body);
                }
            }
            else
            {
                $rt = @mail($to, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header);
                // implement call back function if it exists
                $isSent = ($rt == 1) ? 1 : 0;
                $this->doCallback($isSent, $to, $this->cc, $this->bcc, $this->Subject, $body);
            }
        }
        if ( isset($old_from) )
        {
            ini_set('sendmail_from', $old_from);
        }
        if ( !$rt )
        {
            throw new Exception($this->Lang('instantiate'), self::STOP_CRITICAL);
        }
        return true;
    }

    /**
     * Sends mail via SMTP using PhpSMTP
     * Returns false if there is a bad MAIL FROM, RCPT, or DATA input.
     * @param string $header The message headers
     * @param string $body The message body
     * @uses SMTP
     * @access protected
     * @return bool
     */
    protected function SmtpSend($header, $body)
    {
        require_once $this->PluginDir . 'class.smtp.php';
        $bad_rcpt = array( );

        if ( !$this->SmtpConnect() )
        {
            throw new Exception($this->Lang('smtp_connect_failed'), self::STOP_CRITICAL);
        }
        $smtp_from = ($this->Sender == '') ? $this->From : $this->Sender;
        if ( !$this->smtp->Mail($smtp_from) )
        {
            //throw new Exception($this->Lang('from_failed') . $smtp_from, self::STOP_CRITICAL);
        }

        // Attempt to send attach all recipients
        foreach ( $this->to as $to )
        {
            if ( !$this->smtp->Recipient($to[0]) )
            {
                $bad_rcpt[] = $to[0];
                // implement call back function if it exists
                $isSent = 0;
                $this->doCallback($isSent, $to[0], '', '', $this->Subject, $body);
            }
            else
            {
                // implement call back function if it exists
                $isSent = 1;
                $this->doCallback($isSent, $to[0], '', '', $this->Subject, $body);
            }
        }
        foreach ( $this->cc as $cc )
        {
            if ( !$this->smtp->Recipient($cc[0]) )
            {
                $bad_rcpt[] = $cc[0];
                // implement call back function if it exists
                $isSent = 0;
                $this->doCallback($isSent, '', $cc[0], '', $this->Subject, $body);
            }
            else
            {
                // implement call back function if it exists
                $isSent = 1;
                $this->doCallback($isSent, '', $cc[0], '', $this->Subject, $body);
            }
        }
        foreach ( $this->bcc as $bcc )
        {
            if ( !$this->smtp->Recipient($bcc[0]) )
            {
                $bad_rcpt[] = $bcc[0];
                // implement call back function if it exists
                $isSent = 0;
                $this->doCallback($isSent, '', '', $bcc[0], $this->Subject, $body);
            }
            else
            {
                // implement call back function if it exists
                $isSent = 1;
                $this->doCallback($isSent, '', '', $bcc[0], $this->Subject, $body);
            }
        }


        if ( count($bad_rcpt) > 0 )
        { //Create error message for any bad addresses
            $badaddresses = implode(', ', $bad_rcpt);
            //throw new Exception($this->Lang('recipients_failed') . $badaddresses);
        }
        if ( !$this->smtp->Data($header . $body) )
        {
            //throw new Exception($this->Lang('data_not_accepted'), self::STOP_CRITICAL);
        }
        if ( $this->SMTPKeepAlive == true )
        {
            $this->smtp->Reset();
        }
        return true;
    }

    /**
     * Initiates a connection to an SMTP server.
     * Returns false if the operation failed.
     * @uses SMTP
     * @access public
     * @return bool
     */
    public function SmtpConnect()
    {
        if ( is_null($this->smtp) )
        {
            $this->smtp = new SMTP();
        }

        $this->smtp->do_debug = $this->SMTPDebug;
        $hosts = explode(';', $this->Host);
        $index = 0;
        $connection = $this->smtp->Connected();

        // Retry while there is no connection
        try
        {
            while ( $index < count($hosts) && !$connection )
            {
                $hostinfo = array( );
                if ( preg_match('/^(.+):([0-9]+)$/', $hosts[$index], $hostinfo) )
                {
                    $host = $hostinfo[1];
                    $port = $hostinfo[2];
                }
                else
                {
                    $host = $hosts[$index];
                    $port = $this->Port;
                }

                // Autenticação TLS.
                $tls = false;
                
                if ( stripos($host, 'tls://') !== false )
                {
                    $host = str_replace('tls://', '', $host);
                    $this->SMTPSecure = 'tls';
                    $tls = true;
                }
                elseif ($this->SMTPSecure == 'tls')
                {
                    $tls = true;
                }
                
                 // Autenticação via SSL.
                $ssl = false;
                
                if ( stripos($host, 'ssl://') !== false )
                {
                    $this->SMTPSecure = 'ssl';
                    $ssl = true;
                }
                elseif ($this->SMTPSecure == 'ssl')
                {
                    $host = 'ssl://' . $host;
                    $ssl = true;
                }
                
                if ( $this->smtp->Connect($host, $port, $this->Timeout) )
                {
                    $hello = ($this->Helo != '' ? $this->Helo : $this->ServerHostname());
                    $this->smtp->Hello($hello);

                    if ( $tls )
                    {
                        if ( !$this->smtp->StartTLS() )
                        {
                            throw new Exception($this->Lang('tls'));
                        }

                        //We must resend HELO after tls negotiation
                        $this->smtp->Hello($hello);
                    }

                    $connection = true;
                    if ( $this->SMTPAuth )
                    {
                        if ( !$this->smtp->Authenticate($this->Username, $this->Password) )
                        {
                            throw new Exception($this->Lang('authenticate'));
                        }
                    }
                }
                $index++;
                if ( !$connection )
                {
                    throw new Exception($this->Lang('connect_host'));
                }
            }
        }
        catch ( Exception $e )
        {
            $this->smtp->Reset();
            throw $e;
        }
        return true;
    }

    /**
     * Closes the active SMTP session if one exists.
     * @return void
     */
    public function SmtpClose()
    {
        if ( !is_null($this->smtp) )
        {
            if ( $this->smtp->Connected() )
            {
                $this->smtp->Quit();
                $this->smtp->Close();
            }
        }
    }

    /**
     * Sets the language for all class error messages.
     * Returns false if it cannot load the language file.  The default language is English.
     * @param string $langcode ISO 639-1 2-character language code (e.g. Portuguese: "br")
     * @param string $lang_path Path to the language file directory
     * @access public
     */
    function SetLanguage($langcode = 'en', $lang_path = 'language/')
    {
        //Define full set of translatable strings
        $PHPMAILER_LANG = array(
            'provide_address' => 'You must provide at least one recipient email address.',
            'mailer_not_supported' => ' mailer is not supported.',
            'execute' => 'Could not execute: ',
            'instantiate' => 'Could not instantiate mail function.',
            'authenticate' => 'SMTP Error: Could not authenticate.',
            'from_failed' => 'The following From address failed: ',
            'recipients_failed' => 'SMTP Error: The following recipients failed: ',
            'data_not_accepted' => 'SMTP Error: Data not accepted.',
            'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
            'file_access' => 'Could not access file: ',
            'file_open' => 'File Error: Could not open file: ',
            'encoding' => 'Unknown encoding: ',
            'signing' => 'Signing Error: ',
            'smtp_error' => 'SMTP server error: ',
            'empty_message' => 'Message body empty',
            'invalid_address' => 'Invalid address',
            'variable_set' => 'Cannot set or reset variable: '
        );
        //Overwrite language-specific strings. This way we'll never have missing translations - no more "language string failed to load"!
        $l = true;
        if ( $langcode != 'en' )
        { //There is no English translation file
            $l = @include $lang_path . 'phpmailer.lang-' . $langcode . '.php';
        }
        $this->language = $PHPMAILER_LANG;
        return ($l == true); //Returns false if language not found
    }

    /**
     * Return the current array of language strings
     * @return array
     */
    public function GetTranslations()
    {
        return $this->language;
    }
    /////////////////////////////////////////////////
    // METHODS, MESSAGE CREATION
    /////////////////////////////////////////////////

    /**
     * Creates recipient headers.
     * @access public
     * @return string
     */
    public function AddrAppend($type, $addr)
    {
        $addr_str = $type . ': ';
        $addresses = array( );
        foreach ( $addr as $a )
        {
            $addresses[] = $this->AddrFormat($a);
        }
        $addr_str .= implode(', ', $addresses);
        $addr_str .= $this->LE;

        return $addr_str;
    }

    /**
     * Formats an address correctly.
     * @access public
     * @return string
     */
    public function AddrFormat($addr)
    {
        if ( empty($addr[1]) )
        {
            return $this->SecureHeader($addr[0]);
        }
        else
        {
            return $this->EncodeHeader($this->SecureHeader($addr[1]), 'phrase') . " <" . $this->SecureHeader($addr[0]) . ">";
        }
    }

    /**
     * Wraps message for use with mailers that do not
     * automatically perform wrapping and for quoted-printable.
     * Original written by philippe.
     * @param string $message The message to wrap
     * @param integer $length The line length to wrap to
     * @param boolean $qp_mode Whether to run in Quoted-Printable mode
     * @access public
     * @return string
     */
    public function WrapText($message, $length, $qp_mode = false)
    {
        $soft_break = ($qp_mode) ? sprintf(" =%s", $this->LE) : $this->LE;
        // If utf-8 encoding is used, we will need to make sure we don't
        // split multibyte characters when we wrap
        $is_utf8 = (strtolower($this->CharSet) == "utf-8");

        $message = $this->FixEOL($message);
        if ( substr($message, -1) == $this->LE )
        {
            $message = substr($message, 0, -1);
        }

        $line = explode($this->LE, $message);
        $message = '';
        for ( $i = 0; $i < count($line); $i++ )
        {
            $line_part = explode(' ', $line[$i]);
            $buf = '';
            for ( $e = 0; $e < count($line_part); $e++ )
            {
                $word = $line_part[$e];
                if ( $qp_mode and (strlen($word) > $length) )
                {
                    $space_left = $length - strlen($buf) - 1;
                    if ( $e != 0 )
                    {
                        if ( $space_left > 20 )
                        {
                            $len = $space_left;
                            if ( $is_utf8 )
                            {
                                $len = $this->UTF8CharBoundary($word, $len);
                            }
                            elseif ( substr($word, $len - 1, 1) == "=" )
                            {
                                $len--;
                            }
                            elseif ( substr($word, $len - 2, 1) == "=" )
                            {
                                $len -= 2;
                            }
                            $part = substr($word, 0, $len);
                            $word = substr($word, $len);
                            $buf .= ' ' . $part;
                            $message .= $buf . sprintf("=%s", $this->LE);
                        }
                        else
                        {
                            $message .= $buf . $soft_break;
                        }
                        $buf = '';
                    }
                    while ( strlen($word) > 0 )
                    {
                        $len = $length;
                        if ( $is_utf8 )
                        {
                            $len = $this->UTF8CharBoundary($word, $len);
                        }
                        elseif ( substr($word, $len - 1, 1) == "=" )
                        {
                            $len--;
                        }
                        elseif ( substr($word, $len - 2, 1) == "=" )
                        {
                            $len -= 2;
                        }
                        $part = substr($word, 0, $len);
                        $word = substr($word, $len);

                        if ( strlen($word) > 0 )
                        {
                            $message .= $part . sprintf("=%s", $this->LE);
                        }
                        else
                        {
                            $buf = $part;
                        }
                    }
                }
                else
                {
                    $buf_o = $buf;
                    $buf .= ($e == 0) ? $word : (' ' . $word);

                    if ( strlen($buf) > $length and $buf_o != '' )
                    {
                        $message .= $buf_o . $soft_break;
                        $buf = $word;
                    }
                }
            }
            $message .= $buf . $this->LE;
        }

        return $message;
    }

    /**
     * Finds last character boundary prior to maxLength in a utf-8
     * quoted (printable) encoded string.
     * Original written by Colin Brown.
     * @access public
     * @param string $encodedText utf-8 QP text
     * @param int    $maxLength   find last character boundary prior to this length
     * @return int
     */
    public function UTF8CharBoundary($encodedText, $maxLength)
    {
        $foundSplitPos = false;
        $lookBack = 3;
        while ( !$foundSplitPos )
        {
            $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack);
            $encodedCharPos = strpos($lastChunk, "=");
            if ( $encodedCharPos !== false )
            {
                // Found start of encoded character byte within $lookBack block.
                // Check the encoded byte value (the 2 chars after the '=')
                $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2);
                $dec = hexdec($hex);
                if ( $dec < 128 )
                { // Single byte character.
                    // If the encoded char was found at pos 0, it will fit
                    // otherwise reduce maxLength to start of the encoded char
                    $maxLength = ($encodedCharPos == 0) ? $maxLength :
                            $maxLength - ($lookBack - $encodedCharPos);
                    $foundSplitPos = true;
                }
                elseif ( $dec >= 192 )
                { // First byte of a multi byte character
                    // Reduce maxLength to split at start of character
                    $maxLength = $maxLength - ($lookBack - $encodedCharPos);
                    $foundSplitPos = true;
                }
                elseif ( $dec < 192 )
                { // Middle byte of a multi byte character, look further back
                    $lookBack += 3;
                }
            }
            else
            {
                // No encoded character found
                $foundSplitPos = true;
            }
        }
        return $maxLength;
    }

    /**
     * Set the body wrapping.
     * @access public
     * @return void
     */
    public function SetWordWrap()
    {
        if ( $this->WordWrap < 1 )
        {
            return;
        }

        switch ( $this->message_type )
        {
            case 'alt':
            case 'alt_attachments':
                $this->AltBody = $this->WrapText($this->AltBody, $this->WordWrap);
                break;
            default:
                $this->Body = $this->WrapText($this->Body, $this->WordWrap);
                break;
        }
    }

    /**
     * Assembles message header.
     * @access public
     * @return string The assembled header
     */
    public function CreateHeader()
    {
        $result = '';

        // Set the boundaries
        $uniq_id = md5(uniqid(time()));
        $this->boundary[1] = 'b1_' . $uniq_id;
        $this->boundary[2] = 'b2_' . $uniq_id;

        $result .= $this->HeaderLine('Date', self::RFCDate());
        if ( $this->Sender == '' )
        {
            $result .= $this->HeaderLine('Return-Path', trim($this->From));
        }
        else
        {
            $result .= $this->HeaderLine('Return-Path', trim($this->Sender));
        }

        // To be created automatically by mail()
        if ( $this->Mailer != 'mail' )
        {
            if ( $this->SingleTo === true )
            {
                foreach ( $this->to as $t )
                {
                    $this->SingleToArray[] = $this->AddrFormat($t);
                }
            }
            else
            {
                if ( count($this->to) > 0 )
                {
                    $result .= $this->AddrAppend('To', $this->to);
                }
                elseif ( count($this->cc) == 0 )
                {
                    $result .= $this->HeaderLine('To', 'undisclosed-recipients:;');
                }
            }
        }

        $from = array( );
        $from[0][0] = trim($this->From);
        $from[0][1] = $this->FromName;
        $result .= $this->AddrAppend('From', $from);

        // sendmail and mail() extract Cc from the header before sending
        if ( count($this->cc) > 0 )
        {
            $result .= $this->AddrAppend('Cc', $this->cc);
        }

        // sendmail and mail() extract Bcc from the header before sending
        if ( (($this->Mailer == 'sendmail') || ($this->Mailer == 'mail')) && (count($this->bcc) > 0) )
        {
            $result .= $this->AddrAppend('Bcc', $this->bcc);
        }

        if ( count($this->ReplyTo) > 0 )
        {
            $result .= $this->AddrAppend('Reply-to', $this->ReplyTo);
        }

        // mail() sets the subject itself
        if ( $this->Mailer != 'mail' )
        {
            $result .= $this->HeaderLine('Subject', $this->EncodeHeader($this->SecureHeader($this->Subject)));
        }

        if ( $this->MessageID != '' )
        {
            $result .= $this->HeaderLine('Message-ID', $this->MessageID);
        }
        else
        {
            $result .= sprintf("Message-ID: <%s@%s>%s", $uniq_id, $this->ServerHostname(), $this->LE);
        }
        $result .= $this->HeaderLine('X-Priority', $this->Priority);
        $result .= $this->HeaderLine('X-Mailer', 'PHPMailer ' . $this->Version . ' (phpmailer.sourceforge.net)');

        if ( $this->ConfirmReadingTo != '' )
        {
            $result .= $this->HeaderLine('Disposition-Notification-To', '<' . trim($this->ConfirmReadingTo) . '>');
        }

        // Add custom headers
        for ( $index = 0; $index < count($this->CustomHeader); $index++ )
        {
            $result .= $this->HeaderLine(trim($this->CustomHeader[$index][0]), $this->EncodeHeader(trim($this->CustomHeader[$index][1])));
        }
        if ( !$this->sign_key_file )
        {
            $result .= $this->HeaderLine('MIME-Version', '1.0');
            $result .= $this->GetMailMIME();
        }

        return $result;
    }

    /**
     * Returns the message MIME.
     * @access public
     * @return string
     */
    public function GetMailMIME()
    {
        $result = '';
        switch ( $this->message_type )
        {
            case 'plain':
                $result .= $this->HeaderLine('Content-Transfer-Encoding', $this->Encoding);
                $result .= sprintf("Content-Type: %s; charset=\"%s\"", $this->ContentType, $this->CharSet);
                break;
            case 'attachments':
            case 'alt_attachments':
                if ( $this->InlineImageExists() )
                {
                    $result .= sprintf("Content-Type: %s;%s\ttype=\"text/html\";%s\tboundary=\"%s\"%s", 'multipart/related', $this->LE, $this->LE, $this->boundary[1], $this->LE);
                }
                else
                {
                    $result .= $this->HeaderLine('Content-Type', 'multipart/mixed;');
                    $result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
                }
                break;
            case 'alt':
                $result .= $this->HeaderLine('Content-Type', 'multipart/alternative;');
                $result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
                break;
        }

        if ( $this->Mailer != 'mail' )
        {
            $result .= $this->LE . $this->LE;
        }

        return $result;
    }

    /**
     * Assembles the message body.  Returns an empty string on failure.
     * @access public
     * @return string The assembled message body
     */
    public function CreateBody()
    {
        $body = '';

        if ( $this->sign_key_file )
        {
            $body .= $this->GetMailMIME();
        }

        $this->SetWordWrap();

        switch ( $this->message_type )
        {
            case 'alt':
                $body .= $this->GetBoundary($this->boundary[1], '', 'text/plain', '');
                $body .= $this->EncodeString($this->AltBody, $this->Encoding);
                $body .= $this->LE . $this->LE;
                $body .= $this->GetBoundary($this->boundary[1], '', 'text/html', '');
                $body .= $this->EncodeString($this->Body, $this->Encoding);
                $body .= $this->LE . $this->LE;
                $body .= $this->EndBoundary($this->boundary[1]);
                break;
            case 'plain':
                $body .= $this->EncodeString($this->Body, $this->Encoding);
                break;
            case 'attachments':
                $body .= $this->GetBoundary($this->boundary[1], '', '', '');
                $body .= $this->EncodeString($this->Body, $this->Encoding);
                $body .= $this->LE;
                $body .= $this->AttachAll();
                break;
            case 'alt_attachments':
                $body .= sprintf("--%s%s", $this->boundary[1], $this->LE);
                $body .= sprintf("Content-Type: %s;%s" . "\tboundary=\"%s\"%s", 'multipart/alternative', $this->LE, $this->boundary[2], $this->LE . $this->LE);
                $body .= $this->GetBoundary($this->boundary[2], '', 'text/plain', '') . $this->LE; // Create text body
                $body .= $this->EncodeString($this->AltBody, $this->Encoding);
                $body .= $this->LE . $this->LE;
                $body .= $this->GetBoundary($this->boundary[2], '', 'text/html', '') . $this->LE; // Create the HTML body
                $body .= $this->EncodeString($this->Body, $this->Encoding);
                $body .= $this->LE . $this->LE;
                $body .= $this->EndBoundary($this->boundary[2]);
                $body .= $this->AttachAll();
                break;
        }

        if ( $this->IsError() )
        {
            $body = '';
        }
        elseif ( $this->sign_key_file )
        {
            try
            {
                $file = tempnam('', 'mail');
                file_put_contents($file, $body); //TODO check this worked
                $signed = tempnam("", "signed");
                if ( @openssl_pkcs7_sign($file, $signed, "file://" . $this->sign_cert_file, array( "file://" . $this->sign_key_file, $this->sign_key_pass ), NULL) )
                {
                    @unlink($file);
                    @unlink($signed);
                    $body = file_get_contents($signed);
                }
                else
                {
                    @unlink($file);
                    @unlink($signed);
                    //throw new Exception($this->Lang("signing") . openssl_error_string());
                }
            }
            catch ( Exception $e )
            {
                $body = '';
                if ( $this->exceptions )
                {
                    //throw $e;
                }
            }
        }

        return $body;
    }

    /**
     * Returns the start of a message boundary.
     * @access private
     */
    private function GetBoundary($boundary, $charSet, $contentType, $encoding)
    {
        $result = '';
        if ( $charSet == '' )
        {
            $charSet = $this->CharSet;
        }
        if ( $contentType == '' )
        {
            $contentType = $this->ContentType;
        }
        if ( $encoding == '' )
        {
            $encoding = $this->Encoding;
        }
        $result .= $this->TextLine('--' . $boundary);
        $result .= sprintf("Content-Type: %s; charset = \"%s\"", $contentType, $charSet);
        $result .= $this->LE;
        $result .= $this->HeaderLine('Content-Transfer-Encoding', $encoding);
        $result .= $this->LE;

        return $result;
    }

    /**
     * Returns the end of a message boundary.
     * @access private
     */
    private function EndBoundary($boundary)
    {
        return $this->LE . '--' . $boundary . '--' . $this->LE;
    }

    /**
     * Sets the message type.
     * @access private
     * @return void
     */
    private function SetMessageType()
    {
        if ( count($this->attachment) < 1 && strlen($this->AltBody) < 1 )
        {
            $this->message_type = 'plain';
        }
        else
        {
            if ( count($this->attachment) > 0 )
            {
                $this->message_type = 'attachments';
            }
            if ( strlen($this->AltBody) > 0 && count($this->attachment) < 1 )
            {
                $this->message_type = 'alt';
            }
            if ( strlen($this->AltBody) > 0 && count($this->attachment) > 0 )
            {
                $this->message_type = 'alt_attachments';
            }
        }
    }

    /**
     *  Returns a formatted header line.
     * @access public
     * @return string
     */
    public function HeaderLine($name, $value)
    {
        return $name . ': ' . $value . $this->LE;
    }

    /**
     * Returns a formatted mail line.
     * @access public
     * @return string
     */
    public function TextLine($value)
    {
        return $value . $this->LE;
    }
    /////////////////////////////////////////////////
    // CLASS METHODS, ATTACHMENTS
    /////////////////////////////////////////////////

    /**
     * Adds an attachment from a path on the filesystem.
     * Returns false if the file could not be found
     * or accessed.
     * @param string $path Path to the attachment.
     * @param string $name Overrides the attachment name.
     * @param string $encoding File encoding (see $Encoding).
     * @param string $type File extension (MIME) type.
     * @return bool
     */
    public function AddAttachment($path, $name = '', $encoding = 'base64', $type = 'application/octet-stream')
    {
        try
        {
            if ( !@is_file($path) )
            {
                //throw new Exception($this->Lang('file_access') . $path, self::STOP_CONTINUE);
            }
            $filename = basename($path);
            if ( $name == '' )
            {
                $name = $filename;
            }

            $this->attachment[] = array(
                0 => $path,
                1 => $filename,
                2 => $name,
                3 => $encoding,
                4 => $type,
                5 => false, // isStringAttachment
                6 => 'attachment',
                7 => 0
            );
        }
        catch ( Exception $e )
        {
            //throw new Exception( $e->getMessage() );
            if ( $this->exceptions )
            {
                //throw $e;
            }
            //throw new Exception( $e->getMessage() . "\n" );
            if ( $e->getCode() == self::STOP_CRITICAL )
            {
                return false;
            }
        }
        return true;
    }

    /**
     * Return the current array of attachments
     * @return array
     */
    public function GetAttachments()
    {
        return $this->attachment;
    }

    /**
     * Attaches all fs, string, and binary attachments to the message.
     * Returns an empty string on failure.
     * @access private
     * @return string
     */
    private function AttachAll()
    {
        // Return text of body
        $mime = array( );
        $cidUniq = array( );
        $incl = array( );

        // Add all attachments
        foreach ( $this->attachment as $attachment )
        {
            // Check for string attachment
            $bString = $attachment[5];
            if ( $bString )
            {
                $string = $attachment[0];
            }
            else
            {
                $path = $attachment[0];
            }

            if ( in_array($attachment[0], $incl) )
            {
                continue;
            }
            $filename = $attachment[1];
            $name = $attachment[2];
            $encoding = $attachment[3];
            $type = $attachment[4];
            $disposition = $attachment[6];
            $cid = $attachment[7];
            $incl[] = $attachment[0];
            if ( $disposition == 'inline' && isset($cidUniq[$cid]) )
            {
                continue;
            }
            $cidUniq[$cid] = true;

            $mime[] = sprintf("--%s%s", $this->boundary[1], $this->LE);
            $mime[] = sprintf("Content-Type: %s; name=\"%s\"%s", $type, $this->EncodeHeader($this->SecureHeader($name)), $this->LE);
            $mime[] = sprintf("Content-Transfer-Encoding: %s%s", $encoding, $this->LE);

            if ( $disposition == 'inline' )
            {
                $mime[] = sprintf("Content-ID: <%s>%s", $cid, $this->LE);
            }

            $mime[] = sprintf("Content-Disposition: %s; filename=\"%s\"%s", $disposition, $this->EncodeHeader($this->SecureHeader($name)), $this->LE . $this->LE);

            // Encode as string attachment
            if ( $bString )
            {
                $mime[] = $this->EncodeString($string, $encoding);
                if ( $this->IsError() )
                {
                    return '';
                }
                $mime[] = $this->LE . $this->LE;
            }
            else
            {
                $mime[] = $this->EncodeFile($path, $encoding);
                if ( $this->IsError() )
                {
                    return '';
                }
                $mime[] = $this->LE . $this->LE;
            }
        }

        $mime[] = sprintf("--%s--%s", $this->boundary[1], $this->LE);

        return join('', $mime);
    }

    /**
     * Encodes attachment in requested format.
     * Returns an empty string on failure.
     * @param string $path The full path to the file
     * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
     * @see EncodeFile()
     * @access private
     * @return string
     */
    private function EncodeFile($path, $encoding = 'base64')
    {
        try
        {
            if ( !is_readable($path) )
            {
                //throw new Exception($this->Lang('file_open') . $path, self::STOP_CONTINUE);
            }
            if ( function_exists('get_magic_quotes') )
            {

                function get_magic_quotes()
                {
                    return false;
                }
            }
            if ( PHP_VERSION < 6 )
            {
                $magic_quotes = get_magic_quotes_runtime();
                set_magic_quotes_runtime(0);
            }
            $file_buffer = file_get_contents($path);
            $file_buffer = $this->EncodeString($file_buffer, $encoding);
            if ( PHP_VERSION < 6 )
            {
                set_magic_quotes_runtime($magic_quotes);
            }
            return $file_buffer;
        }
        catch ( Exception $e )
        {
            //throw new Exception($e->getMessage());
            return '';
        }
    }

    /**
     * Encodes string to requested format.
     * Returns an empty string on failure.
     * @param string $str The text to encode
     * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
     * @access public
     * @return string
     */
    public function EncodeString($str, $encoding = 'base64')
    {
        $encoded = '';
        switch ( strtolower($encoding) )
        {
            case 'base64':
                $encoded = chunk_split(base64_encode($str), 76, $this->LE);
                break;
            case '7bit':
            case '8bit':
                $encoded = $this->FixEOL($str);
                //Make sure it ends with a line break
                if ( substr($encoded, -(strlen($this->LE))) != $this->LE )
                        $encoded .= $this->LE;
                break;
            case 'binary':
                $encoded = $str;
                break;
            case 'quoted-printable':
                $encoded = $this->EncodeQP($str);
                break;
            default:
                //throw new Exception($this->Lang('encoding') . $encoding);
                break;
        }
        return $encoded;
    }

    /**
     * Encode a header string to best (shortest) of Q, B, quoted or none.
     * @access public
     * @return string
     */
    public function EncodeHeader($str, $position = 'text')
    {
        $x = 0;

        switch ( strtolower($position) )
        {
            case 'phrase':
                if ( !preg_match('/[\200-\377]/', $str) )
                {
                    // Can't use addslashes as we don't know what value has magic_quotes_sybase
                    $encoded = addcslashes($str, "\0..\37\177\\\"");
                    if ( ($str == $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str) )
                    {
                        return ($encoded);
                    }
                    else
                    {
                        return ("\"$encoded\"");
                    }
                }
                $x = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
                break;
            case 'comment':
                $x = preg_match_all('/[()"]/', $str, $matches);
            // Fall-through
            case 'text':
            default:
                $x += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);
                break;
        }

        if ( $x == 0 )
        {
            return ($str);
        }

        $maxlen = 75 - 7 - strlen($this->CharSet);
        // Try to select the encoding which should produce the shortest output
        if ( strlen($str) / 3 < $x )
        {
            $encoding = 'B';
            if ( function_exists('mb_strlen') && $this->HasMultiBytes($str) )
            {
                // Use a custom function which correctly encodes and wraps long
                // multibyte strings without breaking lines within a character
                $encoded = $this->Base64EncodeWrapMB($str);
            }
            else
            {
                $encoded = base64_encode($str);
                $maxlen -= $maxlen % 4;
                $encoded = trim(chunk_split($encoded, $maxlen, "\n"));
            }
        }
        else
        {
            $encoding = 'Q';
            $encoded = $this->EncodeQ($str, $position);
            $encoded = $this->WrapText($encoded, $maxlen, true);
            $encoded = str_replace('=' . $this->LE, "\n", trim($encoded));
        }

        $encoded = preg_replace('/^(.*)$/m', " =?" . $this->CharSet . "?$encoding?\\1?=", $encoded);
        $encoded = trim(str_replace("\n", $this->LE, $encoded));

        return $encoded;
    }

    /**
     * Checks if a string contains multibyte characters.
     * @access public
     * @param string $str multi-byte text to wrap encode
     * @return bool
     */
    public function HasMultiBytes($str)
    {
        if ( function_exists('mb_strlen') )
        {
            return (strlen($str) > mb_strlen($str, $this->CharSet));
        }
        else
        { // Assume no multibytes (we can't handle without mbstring functions anyway)
            return false;
        }
    }

    /**
     * Correctly encodes and wraps long multibyte strings for mail headers
     * without breaking lines within a character.
     * Adapted from a function by paravoid at http://uk.php.net/manual/en/function.mb-encode-mimeheader.php
     * @access public
     * @param string $str multi-byte text to wrap encode
     * @return string
     */
    public function Base64EncodeWrapMB($str)
    {
        $start = "=?" . $this->CharSet . "?B?";
        $end = "?=";
        $encoded = "";

        $mb_length = mb_strlen($str, $this->CharSet);
        // Each line must have length <= 75, including $start and $end
        $length = 75 - strlen($start) - strlen($end);
        // Average multi-byte ratio
        $ratio = $mb_length / strlen($str);
        // Base64 has a 4:3 ratio
        $offset = $avgLength = floor($length * $ratio * .75);

        for ( $i = 0; $i < $mb_length; $i += $offset )
        {
            $lookBack = 0;

            do
            {
                $offset = $avgLength - $lookBack;
                $chunk = mb_substr($str, $i, $offset, $this->CharSet);
                $chunk = base64_encode($chunk);
                $lookBack++;
            }
            while ( strlen($chunk) > $length );

            $encoded .= $chunk . $this->LE;
        }

        // Chomp the last linefeed
        $encoded = substr($encoded, 0, -strlen($this->LE));
        return $encoded;
    }

    /**
     * Encode string to quoted-printable.
     * Only uses standard PHP, slow, but will always work
     * @access public
     * @param string $string the text to encode
     * @param integer $line_max Number of chars allowed on a line before wrapping
     * @return string
     */
    public function EncodeQPphp($input = '', $line_max = 76, $space_conv = false)
    {
        $hex = array( '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' );
        $lines = preg_split('/(?:\r\n|\r|\n)/', $input);
        $eol = "\r\n";
        $escape = '=';
        $output = '';
        while ( list(, $line) = each($lines) )
        {
            $linlen = strlen($line);
            $newline = '';
            for ( $i = 0; $i < $linlen; $i++ )
            {
                $c = substr($line, $i, 1);
                $dec = ord($c);
                if ( ( $i == 0 ) && ( $dec == 46 ) )
                { // convert first point in the line into =2E
                    $c = '=2E';
                }
                if ( $dec == 32 )
                {
                    if ( $i == ( $linlen - 1 ) )
                    { // convert space at eol only
                        $c = '=20';
                    }
                    else if ( $space_conv )
                    {
                        $c = '=20';
                    }
                }
                elseif ( ($dec == 61) || ($dec < 32 ) || ($dec > 126) )
                { // always encode "\t", which is *not* required
                    $h2 = floor($dec / 16);
                    $h1 = floor($dec % 16);
                    $c = $escape . $hex[$h2] . $hex[$h1];
                }
                if ( (strlen($newline) + strlen($c)) >= $line_max )
                { // CRLF is not counted
                    $output .= $newline . $escape . $eol; //  soft line break; " =\r\n" is okay
                    $newline = '';
                    // check if newline first character will be point or not
                    if ( $dec == 46 )
                    {
                        $c = '=2E';
                    }
                }
                $newline .= $c;
            } // end of for
            $output .= $newline . $eol;
        } // end of while
        return $output;
    }

    /**
     * Encode string to RFC2045 (6.7) quoted-printable format
     * Uses a PHP5 stream filter to do the encoding about 64x faster than the old version
     * Also results in same content as you started with after decoding
     * @see EncodeQPphp()
     * @access public
     * @param string $string the text to encode
     * @param integer $line_max Number of chars allowed on a line before wrapping
     * @param boolean $space_conv Dummy param for compatibility with existing EncodeQP function
     * @return string
     * @author Marcus Bointon
     */
    public function EncodeQP($string, $line_max = 76, $space_conv = false)
    {
        if ( function_exists('quoted_printable_encode') )
        { //Use native function if it's available (>= PHP5.3)
            return quoted_printable_encode($string);
        }
        $filters = stream_get_filters();
        if ( !in_array('convert.*', $filters) )
        { //Got convert stream filter?
            return $this->EncodeQPphp($string, $line_max, $space_conv); //Fall back to old implementation
        }
        $fp = fopen('php://temp/', 'r+');
        $string = preg_replace('/\r\n?/', $this->LE, $string); //Normalise line breaks
        $params = array( 'line-length' => $line_max, 'line-break-chars' => $this->LE );
        $s = stream_filter_append($fp, 'convert.quoted-printable-encode', STREAM_FILTER_READ, $params);
        fputs($fp, $string);
        rewind($fp);
        $out = stream_get_contents($fp);
        stream_filter_remove($s);
        $out = preg_replace('/^\./m', '=2E', $out); //Encode . if it is first char on a line, workaround for bug in Exchange
        fclose($fp);
        return $out;
    }

    /**
     * Encode string to q encoding.
     * @link http://tools.ietf.org/html/rfc2047
     * @param string $str the text to encode
     * @param string $position Where the text is going to be used, see the RFC for what that means
     * @access public
     * @return string
     */
    public function EncodeQ($str, $position = 'text')
    {
        // There should not be any EOL in the string
        $pattern = '';
        $encoded = str_replace(array("\r", "\n"), '', $str);
        switch (strtolower($position)) {
            case 'phrase':
                // RFC 2047 section 5.3
                $pattern = '^A-Za-z0-9!*+\/ -';
                break;
            /** @noinspection PhpMissingBreakStatementInspection */
            case 'comment':
                // RFC 2047 section 5.2
                $pattern = '\(\)"';
            // intentional fall-through
            // for this reason we build the $pattern without including delimiters and []
            case 'text':
            default:
                // RFC 2047 section 5.1
                // Replace every high ascii, control, =, ? and _ characters
                $pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern;
                break;
        }
        $matches = array();
        if (preg_match_all("/[{$pattern}]/", $encoded, $matches)) {
            // If the string contains an '=', make sure it's the first thing we replace
            // so as to avoid double-encoding
            $eqkey = array_search('=', $matches[0]);
            if (false !== $eqkey) {
                unset($matches[0][$eqkey]);
                array_unshift($matches[0], '=');
            }
            foreach (array_unique($matches[0]) as $char) {
                $encoded = str_replace($char, '=' . sprintf('%02X', ord($char)), $encoded);
            }
        }
        // Replace every spaces to _ (more readable than =20)
        return str_replace(' ', '_', $encoded);
    }

    /**
     * Adds a string or binary attachment (non-filesystem) to the list.
     * This method can be used to attach ascii or binary data,
     * such as a BLOB record from a database.
     * @param string $string String attachment data.
     * @param string $filename Name of the attachment.
     * @param string $encoding File encoding (see $Encoding).
     * @param string $type File extension (MIME) type.
     * @return void
     */
    public function AddStringAttachment($string, $filename, $encoding = 'base64', $type = 'application/octet-stream')
    {
        // Append to $attachment array
        $this->attachment[] = array(
            0 => $string,
            1 => $filename,
            2 => basename($filename),
            3 => $encoding,
            4 => $type,
            5 => true, // isStringAttachment
            6 => 'attachment',
            7 => 0
        );
    }

    /**
     * Adds an embedded attachment.  This can include images, sounds, and
     * just about any other document.  Make sure to set the $type to an
     * image type.  For JPEG images use "image/jpeg" and for GIF images
     * use "image/gif".
     * @param string $path Path to the attachment.
     * @param string $cid Content ID of the attachment.  Use this to identify
     *        the Id for accessing the image in an HTML form.
     * @param string $name Overrides the attachment name.
     * @param string $encoding File encoding (see $Encoding).
     * @param string $type File extension (MIME) type.
     * @return bool
     */
    public function AddEmbeddedImage($path, $cid, $name = '', $encoding = 'base64', $type = 'application/octet-stream')
    {

        if ( !@is_file($path) )
        {
            //throw new Exception($this->Lang('file_access') . $path);
            return false;
        }

        $filename = basename($path);
        if ( $name == '' )
        {
            $name = $filename;
        }

        // Append to $attachment array
        $this->attachment[] = array(
            0 => $path,
            1 => $filename,
            2 => $name,
            3 => $encoding,
            4 => $type,
            5 => false, // isStringAttachment
            6 => 'inline',
            7 => $cid
        );

        return true;
    }

    /**
     * Returns true if an inline attachment is present.
     * @access public
     * @return bool
     */
    public function InlineImageExists()
    {
        foreach ( $this->attachment as $attachment )
        {
            if ( $attachment[6] == 'inline' )
            {
                return true;
            }
        }
        return false;
    }
    /////////////////////////////////////////////////
    // CLASS METHODS, MESSAGE RESET
    /////////////////////////////////////////////////

    /**
     * Clears all recipients assigned in the TO array.  Returns void.
     * @return void
     */
    public function ClearAddresses()
    {
        foreach ( $this->to as $to )
        {
            unset($this->all_recipients[strtolower($to[0])]);
        }
        $this->to = array( );
    }

    /**
     * Clears all recipients assigned in the CC array.  Returns void.
     * @return void
     */
    public function ClearCCs()
    {
        foreach ( $this->cc as $cc )
        {
            unset($this->all_recipients[strtolower($cc[0])]);
        }
        $this->cc = array( );
    }

    /**
     * Clears all recipients assigned in the BCC array.  Returns void.
     * @return void
     */
    public function ClearBCCs()
    {
        foreach ( $this->bcc as $bcc )
        {
            unset($this->all_recipients[strtolower($bcc[0])]);
        }
        $this->bcc = array( );
    }

    /**
     * Clears all recipients assigned in the ReplyTo array.  Returns void.
     * @return void
     */
    public function ClearReplyTos()
    {
        $this->ReplyTo = array( );
    }

    /**
     * Clears all recipients assigned in the TO, CC and BCC
     * array.  Returns void.
     * @return void
     */
    public function ClearAllRecipients()
    {
        $this->to = array( );
        $this->cc = array( );
        $this->bcc = array( );
        $this->all_recipients = array( );
    }

    /**
     * Clears all previously set filesystem, string, and binary
     * attachments.  Returns void.
     * @return void
     */
    public function ClearAttachments()
    {
        $this->attachment = array( );
    }

    /**
     * Clears all custom headers.  Returns void.
     * @return void
     */
    public function ClearCustomHeaders()
    {
        $this->CustomHeader = array( );
    }
    /////////////////////////////////////////////////
    // CLASS METHODS, MISCELLANEOUS
    /////////////////////////////////////////////////


    /**
     * Returns the proper RFC 822 formatted date.
     * @access public
     * @return string
     * @static
     */
    public static function RFCDate()
    {
        $tz = date('Z');
        $tzs = ($tz < 0) ? '-' : '+';
        $tz = abs($tz);
        $tz = (int) ($tz / 3600) * 100 + ($tz % 3600) / 60;
        $result = sprintf("%s %s%04d", date('D, j M Y H:i:s'), $tzs, $tz);

        return $result;
    }

    /**
     * Returns the server hostname or 'localhost.localdomain' if unknown.
     * @access private
     * @return string
     */
    private function ServerHostname()
    {
        if ( !empty($this->Hostname) )
        {
            $result = $this->Hostname;
        }
        elseif ( isset($_SERVER['SERVER_NAME']) )
        {
            $result = $_SERVER['SERVER_NAME'];
        }
        else
        {
            $result = 'localhost.localdomain';
        }

        return $result;
    }

    /**
     * Returns a message in the appropriate language.
     * @access private
     * @return string
     */
    private function Lang($key)
    {
        
        if ( count($this->language) < 1 )
        {
            $this->SetLanguage('en'); // set the default language
        }

        if ( isset($this->language[$key]) )
        {
            return $this->language[$key];
        }
        else
        {
            return 'Language string failed to load: ' . $key;
        }
    }

    /**
     * Returns true if an error occurred.
     * @access public
     * @return bool
     */
    public function IsError()
    {
        return ($this->error_count > 0);
    }

    /**
     * Changes every end of line from CR or LF to CRLF.
     * @access private
     * @return string
     */
    private function FixEOL($str)
    {
        $str = str_replace("\r\n", "\n", $str);
        $str = str_replace("\r", "\n", $str);
        $str = str_replace("\n", $this->LE, $str);
        return $str;
    }

    /**
     * Adds a custom header.
     * @access public
     * @return void
     */
    public function AddCustomHeader($custom_header)
    {
        $this->CustomHeader[] = explode(':', $custom_header, 2);
    }

    /**
     * Evaluates the message and returns modifications for inline images and backgrounds
     * @access public
     * @return $message
     */
    public function MsgHTML($message, $basedir = '')
    {
        preg_match_all("/(src|background)=\"(.*)\"/Ui", $message, $images);
        if ( isset($images[2]) )
        {
            foreach ( $images[2] as $i => $url )
            {
                // do not change urls for absolute images (thanks to corvuscorax)
                if ( !preg_match('#^[A-z]+://#', $url) )
                {
                    $filename = basename($url);
                    $directory = dirname($url);
                    ($directory == '.') ? $directory = '' : '';
                    $cid = 'cid:' . md5($filename);
                    $ext = pathinfo($filename, PATHINFO_EXTENSION);
                    $mimeType = self::_mime_types($ext);
                    if ( strlen($basedir) > 1 && substr($basedir, -1) != '/' )
                    {
                        $basedir .= '/';
                    }
                    if ( strlen($directory) > 1 && substr($directory, -1) != '/' )
                    {
                        $directory .= '/';
                    }
                    if ( $this->AddEmbeddedImage($basedir . $directory . $filename, md5($filename), $filename, 'base64', $mimeType) )
                    {
                        $message = preg_replace("/" . $images[1][$i] . "=\"" . preg_quote($url, '/') . "\"/Ui", $images[1][$i] . "=\"" . $cid . "\"", $message);
                    }
                }
            }
        }
        $this->IsHTML(true);
        $this->Body = $message;
        $textMsg = trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/s', '', $message)));
        if ( !empty($textMsg) && empty($this->AltBody) )
        {
            $this->AltBody = html_entity_decode($textMsg);
        }
        if ( empty($this->AltBody) )
        {
            $this->AltBody = 'To view this email message, open it in a program that understands HTML!' . "\n\n";
        }
    }

    /**
     * Gets the MIME type of the embedded or inline image
     * @param string File extension
     * @access public
     * @return string MIME type of ext
     * @static
     */
    public static function _mime_types($ext = '')
    {
        $mimes = array(
            'hqx' => 'application/mac-binhex40',
            'cpt' => 'application/mac-compactpro',
            'doc' => 'application/msword',
            'bin' => 'application/macbinary',
            'dms' => 'application/octet-stream',
            'lha' => 'application/octet-stream',
            'lzh' => 'application/octet-stream',
            'exe' => 'application/octet-stream',
            'class' => 'application/octet-stream',
            'psd' => 'application/octet-stream',
            'so' => 'application/octet-stream',
            'sea' => 'application/octet-stream',
            'dll' => 'application/octet-stream',
            'oda' => 'application/oda',
            'pdf' => 'application/pdf',
            'ai' => 'application/postscript',
            'eps' => 'application/postscript',
            'ps' => 'application/postscript',
            'smi' => 'application/smil',
            'smil' => 'application/smil',
            'mif' => 'application/vnd.mif',
            'xls' => 'application/vnd.ms-excel',
            'ppt' => 'application/vnd.ms-powerpoint',
            'wbxml' => 'application/vnd.wap.wbxml',
            'wmlc' => 'application/vnd.wap.wmlc',
            'dcr' => 'application/x-director',
            'dir' => 'application/x-director',
            'dxr' => 'application/x-director',
            'dvi' => 'application/x-dvi',
            'gtar' => 'application/x-gtar',
            'php' => 'application/x-httpd-php',
            'php4' => 'application/x-httpd-php',
            'php3' => 'application/x-httpd-php',
            'phtml' => 'application/x-httpd-php',
            'phps' => 'application/x-httpd-php-source',
            'js' => 'application/x-javascript',
            'swf' => 'application/x-shockwave-flash',
            'sit' => 'application/x-stuffit',
            'tar' => 'application/x-tar',
            'tgz' => 'application/x-tar',
            'xhtml' => 'application/xhtml+xml',
            'xht' => 'application/xhtml+xml',
            'zip' => 'application/zip',
            'mid' => 'audio/midi',
            'midi' => 'audio/midi',
            'mpga' => 'audio/mpeg',
            'mp2' => 'audio/mpeg',
            'mp3' => 'audio/mpeg',
            'aif' => 'audio/x-aiff',
            'aiff' => 'audio/x-aiff',
            'aifc' => 'audio/x-aiff',
            'ram' => 'audio/x-pn-realaudio',
            'rm' => 'audio/x-pn-realaudio',
            'rpm' => 'audio/x-pn-realaudio-plugin',
            'ra' => 'audio/x-realaudio',
            'rv' => 'video/vnd.rn-realvideo',
            'wav' => 'audio/x-wav',
            'bmp' => 'image/bmp',
            'gif' => 'image/gif',
            'jpeg' => 'image/jpeg',
            'jpg' => 'image/jpeg',
            'jpe' => 'image/jpeg',
            'png' => 'image/png',
            'tiff' => 'image/tiff',
            'tif' => 'image/tiff',
            'css' => 'text/css',
            'html' => 'text/html',
            'htm' => 'text/html',
            'shtml' => 'text/html',
            'txt' => 'text/plain',
            'text' => 'text/plain',
            'log' => 'text/plain',
            'rtx' => 'text/richtext',
            'rtf' => 'text/rtf',
            'xml' => 'text/xml',
            'xsl' => 'text/xml',
            'mpeg' => 'video/mpeg',
            'mpg' => 'video/mpeg',
            'mpe' => 'video/mpeg',
            'qt' => 'video/quicktime',
            'mov' => 'video/quicktime',
            'avi' => 'video/x-msvideo',
            'movie' => 'video/x-sgi-movie',
            'doc' => 'application/msword',
            'word' => 'application/msword',
            'xl' => 'application/excel',
            'eml' => 'message/rfc822'
        );
        return (!isset($mimes[strtolower($ext)])) ? 'application/octet-stream' : $mimes[strtolower($ext)];
    }

    /**
     * Set (or reset) Class Objects (variables)
     *
     * Usage Example:
     * $page->set('X-Priority', '3');
     *
     * @access public
     * @param string $name Parameter Name
     * @param mixed $value Parameter Value
     * NOTE: will not work with arrays, there are no arrays to set/reset
     * @todo Should this not be using __set() magic function?
     */
    public function set($name, $value = '')
    {
        try
        {
            if ( isset($this->$name) )
            {
                $this->$name = $value;
            }
            else
            {
                //throw new Exception($this->Lang('variable_set') . $name, self::STOP_CRITICAL);
            }
        }
        catch ( Exception $e )
        {
            //throw new Exception($e->getMessage());
            if ( $e->getCode() == self::STOP_CRITICAL )
            {
                return false;
            }
        }
        return true;
    }

    /**
     * Strips newlines to prevent header injection.
     * @access public
     * @param string $str String
     * @return string
     */
    public function SecureHeader($str)
    {
        $str = str_replace("\r", '', $str);
        $str = str_replace("\n", '', $str);
        return trim($str);
    }

    /**
     * Set the private key file and password to sign the message.
     *
     * @access public
     * @param string $key_filename Parameter File Name
     * @param string $key_pass Password for private key
     */
    public function Sign($cert_filename, $key_filename, $key_pass)
    {
        $this->sign_cert_file = $cert_filename;
        $this->sign_key_file = $key_filename;
        $this->sign_key_pass = $key_pass;
    }

    /**
     * Set the private key file and password to sign the message.
     *
     * @access public
     * @param string $key_filename Parameter File Name
     * @param string $key_pass Password for private key
     */
    public function DKIM_QP($txt)
    {
        $tmp = "";
        $line = "";
        for ( $i = 0; $i < strlen($txt); $i++ )
        {
            $ord = ord($txt[$i]);
            if ( ((0x21 <= $ord) && ($ord <= 0x3A)) || $ord == 0x3C || ((0x3E <= $ord) && ($ord <= 0x7E)) )
            {
                $line.=$txt[$i];
            }
            else
            {
                $line.="=" . sprintf("%02X", $ord);
            }
        }
        return $line;
    }

    /**
     * Generate DKIM signature
     *
     * @access public
     * @param string $s Header
     */
    public function DKIM_Sign($s)
    {
        $privKeyStr = file_get_contents($this->DKIM_private);
        if ( $this->DKIM_passphrase != '' )
        {
            $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
        }
        else
        {
            $privKey = $privKeyStr;
        }
        if ( openssl_sign($s, $signature, $privKey) )
        {
            return base64_encode($signature);
        }
    }

    /**
     * Generate DKIM Canonicalization Header
     *
     * @access public
     * @param string $s Header
     */
    public function DKIM_HeaderC($s)
    {
        $s = preg_replace("/\r\n\s+/", " ", $s);
        $lines = explode("\r\n", $s);
        foreach ( $lines as $key => $line )
        {
            list($heading, $value) = explode(":", $line, 2);
            $heading = strtolower($heading);
            $value = preg_replace("/\s+/", " ", $value); // Compress useless spaces
            $lines[$key] = $heading . ":" . trim($value); // Don't forget to remove WSP around the value
        }
        $s = implode("\r\n", $lines);
        return $s;
    }

    /**
     * Generate DKIM Canonicalization Body
     *
     * @access public
     * @param string $body Message Body
     */
    public function DKIM_BodyC($body)
    {
        if ( $body == '' ) return "\r\n";
        // stabilize line endings
        $body = str_replace("\r\n", "\n", $body);
        $body = str_replace("\n", "\r\n", $body);
        // END stabilize line endings
        while ( substr($body, strlen($body) - 4, 4) == "\r\n\r\n" )
        {
            $body = substr($body, 0, strlen($body) - 2);
        }
        return $body;
    }

    /**
     * Create the DKIM header, body, as new header
     *
     * @access public
     * @param string $headers_line Header lines
     * @param string $subject Subject
     * @param string $body Body
     */
    public function DKIM_Add($headers_line, $subject, $body)
    {
        $DKIMsignatureType = 'rsa-sha1'; // Signature & hash algorithms
        $DKIMcanonicalization = 'relaxed/simple'; // Canonicalization of header/body
        $DKIMquery = 'dns/txt'; // Query method
        $DKIMtime = time(); // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone)
        $subject_header = "Subject: $subject";
        $headers = explode("\r\n", $headers_line);
        foreach ( $headers as $header )
        {
            if ( strpos($header, 'From:') === 0 )
            {
                $from_header = $header;
            }
            elseif ( strpos($header, 'To:') === 0 )
            {
                $to_header = $header;
            }
        }
        $from = str_replace('|', '=7C', $this->DKIM_QP($from_header));
        $to = str_replace('|', '=7C', $this->DKIM_QP($to_header));
        $subject = str_replace('|', '=7C', $this->DKIM_QP($subject_header)); // Copied header fields (dkim-quoted-printable
        $body = $this->DKIM_BodyC($body);
        $DKIMlen = strlen($body); // Length of body
        $DKIMb64 = base64_encode(pack("H*", sha1($body))); // Base64 of packed binary SHA-1 hash of body
        $ident = ($this->DKIM_identity == '') ? '' : " i=" . $this->DKIM_identity . ";";
        $dkimhdrs = "DKIM-Signature: v=1; a=" . $DKIMsignatureType . "; q=" . $DKIMquery . "; l=" . $DKIMlen . "; s=" . $this->DKIM_selector . ";\r\n" .
                "\tt=" . $DKIMtime . "; c=" . $DKIMcanonicalization . ";\r\n" .
                "\th=From:To:Subject;\r\n" .
                "\td=" . $this->DKIM_domain . ";" . $ident . "\r\n" .
                "\tz=$from\r\n" .
                "\t|$to\r\n" .
                "\t|$subject;\r\n" .
                "\tbh=" . $DKIMb64 . ";\r\n" .
                "\tb=";
        $toSign = $this->DKIM_HeaderC($from_header . "\r\n" . $to_header . "\r\n" . $subject_header . "\r\n" . $dkimhdrs);
        $signed = $this->DKIM_Sign($toSign);
        return "X-PHPMAILER-DKIM: phpmailer.worxware.com\r\n" . $dkimhdrs . $signed . "\r\n";
    }

    protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body)
    {
        if ( !empty($this->action_function) && function_exists($this->action_function) )
        {
            $params = array( $isSent, $to, $cc, $bcc, $subject, $body );
            call_user_func_array($this->action_function, $params);
        }
    }
}

?>