www.gusucode.com > Carbon Forum PHP轻论坛系统 v3.6.5源码程序 > Carbon-Forum-3.6.5/includes/PHPMailer.class.php

    <?php
/**
 * PHPMailer - PHP email creation and transport class.
 * PHP Version 5
 * @package PHPMailer
 * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
 * @author Brent R. Matzelle (original founder)
 * @copyright 2012 - 2014 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 * @note 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.
 */

/**
 * PHPMailer - PHP email creation and transport class.
 * @package PHPMailer
 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
 * @author Brent R. Matzelle (original founder)
 */
class PHPMailer
{
	/**
	 * The PHPMailer Version number.
	 * @type string
	 */
	public $Version = '5.2.10';
	
	/**
	 * Email priority.
	 * Options: 1 = High, 3 = Normal, 5 = low.
	 * @type integer
	 */
	public $Priority = 3;
	
	/**
	 * The character set of the message.
	 * @type string
	 */
	public $CharSet = 'iso-8859-1';
	
	/**
	 * The MIME Content-type of the message.
	 * @type string
	 */
	public $ContentType = 'text/plain';
	
	/**
	 * The message encoding.
	 * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable".
	 * @type string
	 */
	public $Encoding = '8bit';
	
	/**
	 * Holds the most recent mailer error message.
	 * @type string
	 */
	public $ErrorInfo = '';
	
	/**
	 * The From email address for the message.
	 * @type string
	 */
	public $From = 'root@localhost';
	
	/**
	 * The From name of the message.
	 * @type string
	 */
	public $FromName = 'Root User';
	
	/**
	 * 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.
	 * @type string
	 */
	public $Sender = '';
	
	/**
	 * The Return-Path of the message.
	 * If empty, it will be set to either From or Sender.
	 * @type string
	 * @deprecated Email senders should never set a return-path header;
	 * it's the receiver's job (RFC5321 section 4.4), so this no longer does anything.
	 * @link https://tools.ietf.org/html/rfc5321#section-4.4 RFC5321 reference
	 */
	public $ReturnPath = '';
	
	/**
	 * The Subject of the message.
	 * @type string
	 */
	public $Subject = '';
	
	/**
	 * An HTML or plain text message body.
	 * If HTML then call isHTML(true).
	 * @type string
	 */
	public $Body = '';
	
	/**
	 * The plain-text message body.
	 * This body can be read by mail clients that do not have HTML email
	 * capability such as mutt & Eudora.
	 * Clients that can read HTML will view the normal Body.
	 * @type string
	 */
	public $AltBody = '';
	
	/**
	 * An iCal message part body.
	 * Only supported in simple alt or alt_inline message types
	 * To generate iCal events, use the bundled extras/EasyPeasyICS.php class or iCalcreator
	 * @link http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
	 * @link http://kigkonsult.se/iCalcreator/
	 * @type string
	 */
	public $Ical = '';
	
	/**
	 * The complete compiled MIME message body.
	 * @access protected
	 * @type string
	 */
	protected $MIMEBody = '';
	
	/**
	 * The complete compiled MIME message headers.
	 * @type string
	 * @access protected
	 */
	protected $MIMEHeader = '';
	
	/**
	 * Extra headers that createHeader() doesn't fold in.
	 * @type string
	 * @access protected
	 */
	protected $mailHeader = '';
	
	/**
	 * Word-wrap the message body to this number of chars.
	 * Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance.
	 * @type integer
	 */
	public $WordWrap = 0;
	
	/**
	 * Which method to use to send mail.
	 * Options: "mail", "sendmail", or "smtp".
	 * @type string
	 */
	public $Mailer = 'mail';
	
	/**
	 * The path to the sendmail program.
	 * @type string
	 */
	public $Sendmail = '/usr/sbin/sendmail';
	
	/**
	 * Whether mail() uses a fully sendmail-compatible MTA.
	 * One which supports sendmail's "-oi -f" options.
	 * @type boolean
	 */
	public $UseSendmailOptions = true;
	
	/**
	 * Path to PHPMailer plugins.
	 * Useful if the SMTP class is not in the PHP include path.
	 * @type string
	 * @deprecated Should not be needed now there is an autoloader.
	 */
	public $PluginDir = '';
	
	/**
	 * The email address that a reading confirmation should be sent to.
	 * @type string
	 */
	public $ConfirmReadingTo = '';
	
	/**
	 * 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'.
	 * @type string
	 */
	public $Hostname = '';
	
	/**
	 * An ID to be used in the Message-Id header.
	 * If empty, a unique id will be generated.
	 * @type string
	 */
	public $MessageID = '';
	
	/**
	 * The message Date to be used in the Date header.
	 * If empty, the current date will be added.
	 * @type string
	 */
	public $MessageDate = '';
	
	/**
	 * SMTP hosts.
	 * Either a single hostname or multiple semicolon-delimited hostnames.
	 * 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").
	 * You can also specify encryption type, for example:
	 * (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465").
	 * Hosts will be tried in order.
	 * @type string
	 */
	public $Host = 'localhost';
	
	/**
	 * The default SMTP server port.
	 * @type integer
	 * @TODO Why is this needed when the SMTP class takes care of it?
	 */
	public $Port = 25;
	
	/**
	 * The SMTP HELO of the message.
	 * Default is $Hostname.
	 * @type string
	 * @see PHPMailer::$Hostname
	 */
	public $Helo = '';
	
	/**
	 * What kind of encryption to use on the SMTP connection.
	 * Options: '', 'ssl' or 'tls'
	 * @type string
	 */
	public $SMTPSecure = '';
	
	/**
	 * Whether to enable TLS encryption automatically if a server supports it,
	 * even if `SMTPSecure` is not set to 'tls'.
	 * Be aware that in PHP >= 5.6 this requires that the server's certificates are valid.
	 * @type boolean
	 */
	public $SMTPAutoTLS = true;
	
	/**
	 * Whether to use SMTP authentication.
	 * Uses the Username and Password properties.
	 * @type boolean
	 * @see PHPMailer::$Username
	 * @see PHPMailer::$Password
	 */
	public $SMTPAuth = false;
	
	/**
	 * Options array passed to stream_context_create when connecting via SMTP.
	 * @type array
	 */
	public $SMTPOptions = array();
	
	/**
	 * SMTP username.
	 * @type string
	 */
	public $Username = '';
	
	/**
	 * SMTP password.
	 * @type string
	 */
	public $Password = '';
	
	/**
	 * SMTP auth type.
	 * Options are LOGIN (default), PLAIN, NTLM, CRAM-MD5
	 * @type string
	 */
	public $AuthType = '';
	
	/**
	 * SMTP realm.
	 * Used for NTLM auth
	 * @type string
	 */
	public $Realm = '';
	
	/**
	 * SMTP workstation.
	 * Used for NTLM auth
	 * @type string
	 */
	public $Workstation = '';
	
	/**
	 * The SMTP server timeout in seconds.
	 * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2
	 * @type integer
	 */
	public $Timeout = 300;
	
	/**
	 * SMTP class debug output mode.
	 * Debug output level.
	 * Options:
	 * * `0` No output
	 * * `1` Commands
	 * * `2` Data and commands
	 * * `3` As 2 plus connection status
	 * * `4` Low-level data output
	 * @type integer
	 * @see SMTP::$do_debug
	 */
	public $SMTPDebug = 0;
	
	/**
	 * How to handle debug output.
	 * Options:
	 * * `echo` Output plain-text as-is, appropriate for CLI
	 * * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output
	 * * `error_log` Output to error log as configured in php.ini
	 *
	 * Alternatively, you can provide a callable expecting two params: a message string and the debug level:
	 * <code>
	 * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
	 * </code>
	 * @type string|callable
	 * @see SMTP::$Debugoutput
	 */
	public $Debugoutput = 'echo';
	
	/**
	 * Whether to keep SMTP connection open after each message.
	 * If this is set to true then to close the connection
	 * requires an explicit call to smtpClose().
	 * @type boolean
	 */
	public $SMTPKeepAlive = false;
	
	/**
	 * Whether to split multiple to addresses into multiple messages
	 * or send them all in one message.
	 * @type boolean
	 */
	public $SingleTo = false;
	
	/**
	 * Storage for addresses when SingleTo is enabled.
	 * @type array
	 * @TODO This should really not be public
	 */
	public $SingleToArray = array();
	
	/**
	 * Whether to generate VERP addresses on send.
	 * Only applicable when sending via SMTP.
	 * @link http://en.wikipedia.org/wiki/Variable_envelope_return_path
	 * @link http://www.postfix.org/VERP_README.html Postfix VERP info
	 * @type boolean
	 */
	public $do_verp = false;
	
	/**
	 * Whether to allow sending messages with an empty body.
	 * @type boolean
	 */
	public $AllowEmpty = false;
	
	/**
	 * The default line ending.
	 * @note The default remains "\n". We force CRLF where we know
	 *        it must be used via self::CRLF.
	 * @type string
	 */
	public $LE = "\n";
	
	/**
	 * DKIM selector.
	 * @type string
	 */
	public $DKIM_selector = '';
	
	/**
	 * DKIM Identity.
	 * Usually the email address used as the source of the email
	 * @type string
	 */
	public $DKIM_identity = '';
	
	/**
	 * DKIM passphrase.
	 * Used if your key is encrypted.
	 * @type string
	 */
	public $DKIM_passphrase = '';
	
	/**
	 * DKIM signing domain name.
	 * @example 'example.com'
	 * @type string
	 */
	public $DKIM_domain = '';
	
	/**
	 * DKIM private key file path.
	 * @type string
	 */
	public $DKIM_private = '';
	
	/**
	 * Callback Action function name.
	 *
	 * The function that handles the result of the send email action.
	 * It is called out by send() for each email sent.
	 *
	 * Value can be any php callable: http://www.php.net/is_callable
	 *
	 * Parameters:
	 *   boolean $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
	 *   string  $from          email address of sender
	 * @type string
	 */
	public $action_function = '';
	
	/**
	 * What to put in the X-Mailer header.
	 * Options: An empty string for PHPMailer default, whitespace for none, or a string to use
	 * @type string
	 */
	public $XMailer = '';
	
	/**
	 * An instance of the SMTP sender class.
	 * @type SMTP
	 * @access protected
	 */
	protected $smtp = null;
	
	/**
	 * The array of 'to' addresses.
	 * @type array
	 * @access protected
	 */
	protected $to = array();
	
	/**
	 * The array of 'cc' addresses.
	 * @type array
	 * @access protected
	 */
	protected $cc = array();
	
	/**
	 * The array of 'bcc' addresses.
	 * @type array
	 * @access protected
	 */
	protected $bcc = array();
	
	/**
	 * The array of reply-to names and addresses.
	 * @type array
	 * @access protected
	 */
	protected $ReplyTo = array();
	
	/**
	 * An array of all kinds of addresses.
	 * Includes all of $to, $cc, $bcc
	 * @type array
	 * @access protected
	 */
	protected $all_recipients = array();
	
	/**
	 * The array of attachments.
	 * @type array
	 * @access protected
	 */
	protected $attachment = array();
	
	/**
	 * The array of custom headers.
	 * @type array
	 * @access protected
	 */
	protected $CustomHeader = array();
	
	/**
	 * The most recent Message-ID (including angular brackets).
	 * @type string
	 * @access protected
	 */
	protected $lastMessageID = '';
	
	/**
	 * The message's MIME type.
	 * @type string
	 * @access protected
	 */
	protected $message_type = '';
	
	/**
	 * The array of MIME boundary strings.
	 * @type array
	 * @access protected
	 */
	protected $boundary = array();
	
	/**
	 * The array of available languages.
	 * @type array
	 * @access protected
	 */
	protected $language = array();
	
	/**
	 * The number of errors encountered.
	 * @type integer
	 * @access protected
	 */
	protected $error_count = 0;
	
	/**
	 * The S/MIME certificate file path.
	 * @type string
	 * @access protected
	 */
	protected $sign_cert_file = '';
	
	/**
	 * The S/MIME key file path.
	 * @type string
	 * @access protected
	 */
	protected $sign_key_file = '';
	
	/**
	 * The optional S/MIME extra certificates ("CA Chain") file path.
	 * @type string
	 * @access protected
	 */
	protected $sign_extracerts_file = '';
	
	/**
	 * The S/MIME password for the key.
	 * Used only if the key is encrypted.
	 * @type string
	 * @access protected
	 */
	protected $sign_key_pass = '';
	
	/**
	 * Whether to throw exceptions for errors.
	 * @type boolean
	 * @access protected
	 */
	protected $exceptions = false;
	
	/**
	 * Unique ID used for message ID and boundaries.
	 * @type string
	 * @access protected
	 */
	protected $uniqueid = '';
	
	/**
	 * Error severity: message only, continue processing.
	 */
	const STOP_MESSAGE = 0;
	
	/**
	 * Error severity: message, likely ok to continue processing.
	 */
	const STOP_CONTINUE = 1;
	
	/**
	 * Error severity: message, plus full stop, critical error reached.
	 */
	const STOP_CRITICAL = 2;
	
	/**
	 * SMTP RFC standard line ending.
	 */
	const CRLF = "\r\n";
	
	/**
	 * The maximum line length allowed by RFC 2822 section 2.1.1
	 * @type integer
	 */
	const MAX_LINE_LENGTH = 998;
	
	/**
	 * Constructor.
	 * @param boolean $exceptions Should we throw external exceptions?
	 */
	public function __construct($exceptions = false)
	{
		$this->exceptions = (boolean) $exceptions;
	}
	
	/**
	 * Destructor.
	 */
	public function __destruct()
	{
		//Close any open SMTP connection nicely
		if ($this->Mailer == 'smtp') {
			$this->smtpClose();
		}
	}
	
	/**
	 * Call mail() in a safe_mode-aware fashion.
	 * Also, unless sendmail_path points to sendmail (or something that
	 * claims to be sendmail), don't pass params (not a perfect fix,
	 * but it will do)
	 * @param string $to To
	 * @param string $subject Subject
	 * @param string $body Message Body
	 * @param string $header Additional Header(s)
	 * @param string $params Params
	 * @access private
	 * @return boolean
	 */
	private function mailPassthru($to, $subject, $body, $header, $params)
	{
		//Check overloading of mail function to avoid double-encoding
		if (ini_get('mbstring.func_overload') & 1) {
			$subject = $this->secureHeader($subject);
		} else {
			$subject = $this->encodeHeader($this->secureHeader($subject));
		}
		if (ini_get('safe_mode') || !($this->UseSendmailOptions)) {
			$result = @mail($to, $subject, $body, $header);
		} else {
			$result = @mail($to, $subject, $body, $header, $params);
		}
		return $result;
	}
	
	/**
	 * Output debugging info via user-defined method.
	 * Only generates output if SMTP debug output is enabled (@see SMTP::$do_debug).
	 * @see PHPMailer::$Debugoutput
	 * @see PHPMailer::$SMTPDebug
	 * @param string $str
	 */
	protected function edebug($str)
	{
		if ($this->SMTPDebug <= 0) {
			return;
		}
		//Avoid clash with built-in function names
		if (!in_array($this->Debugoutput, array(
			'error_log',
			'html',
			'echo'
		)) and is_callable($this->Debugoutput)) {
			call_user_func($this->Debugoutput, $str, $this->SMTPDebug);
			return;
		}
		switch ($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:
				//Normalize line breaks
				$str = preg_replace('/(\r\n|\r|\n)/ms', "\n", $str);
				echo gmdate('Y-m-d H:i:s') . "\t" . str_replace("\n", "\n                   \t                  ", trim($str)) . "\n";
		}
	}
	
	/**
	 * Sets message type to HTML or plain.
	 * @param boolean $isHtml True for HTML mode.
	 * @return void
	 */
	public function isHTML($isHtml = true)
	{
		if ($isHtml) {
			$this->ContentType = 'text/html';
		} else {
			$this->ContentType = 'text/plain';
		}
	}
	
	/**
	 * Send messages using SMTP.
	 * @return void
	 */
	public function isSMTP()
	{
		$this->Mailer = 'smtp';
	}
	
	/**
	 * Send messages using PHP's mail() function.
	 * @return void
	 */
	public function isMail()
	{
		$this->Mailer = 'mail';
	}
	
	/**
	 * Send messages using $Sendmail.
	 * @return void
	 */
	public function isSendmail()
	{
		$ini_sendmail_path = ini_get('sendmail_path');
		
		if (!stristr($ini_sendmail_path, 'sendmail')) {
			$this->Sendmail = '/usr/sbin/sendmail';
		} else {
			$this->Sendmail = $ini_sendmail_path;
		}
		$this->Mailer = 'sendmail';
	}
	
	/**
	 * Send messages using qmail.
	 * @return void
	 */
	public function isQmail()
	{
		$ini_sendmail_path = ini_get('sendmail_path');
		
		if (!stristr($ini_sendmail_path, 'qmail')) {
			$this->Sendmail = '/var/qmail/bin/qmail-inject';
		} else {
			$this->Sendmail = $ini_sendmail_path;
		}
		$this->Mailer = 'qmail';
	}
	
	/**
	 * Add 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);
	}
	
	/**
	 * Add 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);
	}
	
	/**
	 * Add 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);
	}
	
	/**
	 * Add a "Reply-to" address.
	 * @param string $address
	 * @param string $name
	 * @return boolean
	 */
	public function addReplyTo($address, $name = '')
	{
		return $this->addAnAddress('Reply-To', $address, $name);
	}
	
	/**
	 * Add 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 $name
	 * @throws phpmailerException
	 * @return boolean true on success, false if address already used or invalid in some way
	 * @access protected
	 */
	protected function addAnAddress($kind, $address, $name = '')
	{
		if (!preg_match('/^(to|cc|bcc|Reply-To)$/', $kind)) {
			$this->setError($this->lang('Invalid recipient array') . ': ' . $kind);
			$this->edebug($this->lang('Invalid recipient array') . ': ' . $kind);
			if ($this->exceptions) {
				throw new phpmailerException('Invalid recipient array: ' . $kind);
			}
			return false;
		}
		$address = trim($address);
		$name    = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
		if (!$this->validateAddress($address)) {
			$this->setError($this->lang('invalid_address') . ': ' . $address);
			$this->edebug($this->lang('invalid_address') . ': ' . $address);
			if ($this->exceptions) {
				throw new phpmailerException($this->lang('invalid_address') . ': ' . $address);
			}
			return false;
		}
		if ($kind != 'Reply-To') {
			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
	 * @param boolean $auto Whether to also set the Sender address, defaults to true
	 * @throws phpmailerException
	 * @return boolean
	 */
	public function setFrom($address, $name = '', $auto = true)
	{
		$address = trim($address);
		$name    = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
		if (!$this->validateAddress($address)) {
			$this->setError($this->lang('invalid_address') . ': ' . $address);
			$this->edebug($this->lang('invalid_address') . ': ' . $address);
			if ($this->exceptions) {
				throw new phpmailerException($this->lang('invalid_address') . ': ' . $address);
			}
			return false;
		}
		$this->From     = $address;
		$this->FromName = $name;
		if ($auto) {
			if (empty($this->Sender)) {
				$this->Sender = $address;
			}
		}
		return true;
	}
	
	/**
	 * Return the Message-ID header of the last email.
	 * Technically this is the value from the last time the headers were created,
	 * but it's also the message ID of the last sent message except in
	 * pathological cases.
	 * @return string
	 */
	public function getLastMessageID()
	{
		return $this->lastMessageID;
	}
	
	/**
	 * Check that a string looks like an email address.
	 * @param string $address The email address to check
	 * @param string $patternselect A selector for the validation pattern to use :
	 * * `auto` Pick strictest one automatically;
	 * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0, PHP >= 5.3.2, 5.2.14;
	 * * `pcre` Use old PCRE implementation;
	 * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL; same as pcre8 but does not allow 'dotless' domains;
	 * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements.
	 * * `noregex` Don't use a regex: super fast, really dumb.
	 * @return boolean
	 * @static
	 * @access public
	 */
	public static function validateAddress($address, $patternselect = 'auto')
	{
		if (!$patternselect or $patternselect == 'auto') {
			//Check this constant first so it works when extension_loaded() is disabled by safe mode
			//Constant was added in PHP 5.2.4
			if (defined('PCRE_VERSION')) {
				//This pattern can get stuck in a recursive loop in PCRE <= 8.0.2
				if (version_compare(PCRE_VERSION, '8.0.3') >= 0) {
					$patternselect = 'pcre8';
				} else {
					$patternselect = 'pcre';
				}
			} elseif (function_exists('extension_loaded') and extension_loaded('pcre')) {
				//Fall back to older PCRE
				$patternselect = 'pcre';
			} else {
				//Filter_var appeared in PHP 5.2.0 and does not require the PCRE extension
				if (version_compare(PHP_VERSION, '5.2.0') >= 0) {
					$patternselect = 'php';
				} else {
					$patternselect = 'noregex';
				}
			}
		}
		switch ($patternselect) {
			case 'pcre8':
				/**
				 * Uses the same RFC5322 regex on which FILTER_VALIDATE_EMAIL is based, but allows dotless domains.
				 * @link http://squiloople.com/2009/12/20/email-address-validation/
				 * @copyright 2009-2010 Michael Rushton
				 * Feel free to use and redistribute this code. But please keep this copyright notice.
				 */
				return (boolean) preg_match('/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' . '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' . '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' . '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' . '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' . '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' . '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' . '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' . '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD', $address);
			case 'pcre':
				//An older regex that doesn't need a recent PCRE
				return (boolean) preg_match('/^(?!(?>"?(?>\\\[ -~]|[^"])"?){255,})(?!(?>"?(?>\\\[ -~]|[^"])"?){65,}@)(?>' . '[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*")' . '(?>\.(?>[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*"))*' . '@(?>(?![a-z0-9-]{64,})(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)(?>\.(?![a-z0-9-]{64,})' . '(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)){0,126}|\[(?:(?>IPv6:(?>(?>[a-f0-9]{1,4})(?>:' . '[a-f0-9]{1,4}){7}|(?!(?:.*[a-f0-9][:\]]){8,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?' . '::(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?))|(?>(?>IPv6:(?>[a-f0-9]{1,4}(?>:' . '[a-f0-9]{1,4}){5}:|(?!(?:.*[a-f0-9]:){6,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4})?' . '::(?>(?:[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4}):)?))?(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}' . '|[1-9]?[0-9])(?>\.(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}))\])$/isD', $address);
			case 'html5':
				/**
				 * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements.
				 * @link http://www.whatwg.org/specs/web-apps/current-work/#e-mail-state-(type=email)
				 */
				return (boolean) preg_match('/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[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])?)*$/sD', $address);
			case 'noregex':
				//No PCRE! Do something _very_ approximate!
				//Check the address is 3 chars or longer and contains an @ that's not the first or last char
				return (strlen($address) >= 3 and strpos($address, '@') >= 1 and strpos($address, '@') != strlen($address) - 1);
			case 'php':
			default:
				return (boolean) filter_var($address, FILTER_VALIDATE_EMAIL);
		}
	}
	
	/**
	 * Create a message and send it.
	 * Uses the sending method specified by $Mailer.
	 * @throws phpmailerException
	 * @return boolean false on error - See the ErrorInfo property for details of the error.
	 */
	public function send()
	{
		try {
			if (!$this->preSend()) {
				return false;
			}
			return $this->postSend();
		}
		catch (phpmailerException $exc) {
			$this->mailHeader = '';
			$this->setError($exc->getMessage());
			if ($this->exceptions) {
				throw $exc;
			}
			return false;
		}
	}
	
	/**
	 * Prepare a message for sending.
	 * @throws phpmailerException
	 * @return boolean
	 */
	public function preSend()
	{
		try {
			$this->mailHeader = '';
			if ((count($this->to) + count($this->cc) + count($this->bcc)) < 1) {
				throw new phpmailerException($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
			$this->setMessageType();
			// Refuse to send an empty message unless we are specifically allowing it
			if (!$this->AllowEmpty and empty($this->Body)) {
				throw new phpmailerException($this->lang('empty_message'), self::STOP_CRITICAL);
			}
			
			// Create body before headers in case body makes changes to headers (e.g. altering transfer encoding)
			$this->MIMEHeader = '';
			$this->MIMEBody   = $this->createBody();
			// createBody may have added some headers, so retain them
			$tempheaders      = $this->MIMEHeader;
			$this->MIMEHeader = $this->createHeader();
			$this->MIMEHeader .= $tempheaders;
			
			// To capture the complete message when using mail(), create
			// an extra header list which createHeader() doesn't fold in
			if ($this->Mailer == 'mail') {
				if (count($this->to) > 0) {
					$this->mailHeader .= $this->addrAppend('To', $this->to);
				} else {
					$this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;');
				}
				$this->mailHeader .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader(trim($this->Subject))));
			}
			
			// Sign with DKIM if enabled
			if (!empty($this->DKIM_domain) && !empty($this->DKIM_private) && !empty($this->DKIM_selector) && file_exists($this->DKIM_private)) {
				$header_dkim      = $this->DKIM_Add($this->MIMEHeader . $this->mailHeader, $this->encodeHeader($this->secureHeader($this->Subject)), $this->MIMEBody);
				$this->MIMEHeader = rtrim($this->MIMEHeader, "\r\n ") . self::CRLF . str_replace("\r\n", "\n", $header_dkim) . self::CRLF;
			}
			return true;
		}
		catch (phpmailerException $exc) {
			$this->setError($exc->getMessage());
			if ($this->exceptions) {
				throw $exc;
			}
			return false;
		}
	}
	
	/**
	 * Actually send a message.
	 * Send the email via the selected mechanism
	 * @throws phpmailerException
	 * @return boolean
	 */
	public function postSend()
	{
		try {
			// Choose the mailer and send through it
			switch ($this->Mailer) {
				case 'sendmail':
				case 'qmail':
					return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody);
				case 'smtp':
					return $this->smtpSend($this->MIMEHeader, $this->MIMEBody);
				case 'mail':
					return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
				default:
					$sendMethod = $this->Mailer . 'Send';
					if (method_exists($this, $sendMethod)) {
						return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody);
					}
					
					return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
			}
		}
		catch (phpmailerException $exc) {
			$this->setError($exc->getMessage());
			$this->edebug($exc->getMessage());
			if ($this->exceptions) {
				throw $exc;
			}
		}
		return false;
	}
	
	/**
	 * Send mail using the $Sendmail program.
	 * @param string $header The message headers
	 * @param string $body The message body
	 * @see PHPMailer::$Sendmail
	 * @throws phpmailerException
	 * @access protected
	 * @return boolean
	 */
	protected function sendmailSend($header, $body)
	{
		if ($this->Sender != '') {
			if ($this->Mailer == 'qmail') {
				$sendmail = sprintf('%s -f%s', escapeshellcmd($this->Sendmail), escapeshellarg($this->Sender));
			} else {
				$sendmail = sprintf('%s -oi -f%s -t', escapeshellcmd($this->Sendmail), escapeshellarg($this->Sender));
			}
		} else {
			if ($this->Mailer == 'qmail') {
				$sendmail = sprintf('%s', escapeshellcmd($this->Sendmail));
			} else {
				$sendmail = sprintf('%s -oi -t', escapeshellcmd($this->Sendmail));
			}
		}
		if ($this->SingleTo) {
			foreach ($this->SingleToArray as $toAddr) {
				if (!@$mail = popen($sendmail, 'w')) {
					throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
				}
				fputs($mail, 'To: ' . $toAddr . "\n");
				fputs($mail, $header);
				fputs($mail, $body);
				$result = pclose($mail);
				$this->doCallback(($result == 0), array(
					$toAddr
				), $this->cc, $this->bcc, $this->Subject, $body, $this->From);
				if ($result != 0) {
					throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
				}
			}
		} else {
			if (!@$mail = popen($sendmail, 'w')) {
				throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
			}
			fputs($mail, $header);
			fputs($mail, $body);
			$result = pclose($mail);
			$this->doCallback(($result == 0), $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From);
			if ($result != 0) {
				throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
			}
		}
		return true;
	}
	
	/**
	 * Send mail using the PHP mail() function.
	 * @param string $header The message headers
	 * @param string $body The message body
	 * @link http://www.php.net/manual/en/book.mail.php
	 * @throws phpmailerException
	 * @access protected
	 * @return boolean
	 */
	protected function mailSend($header, $body)
	{
		$toArr = array();
		foreach ($this->to as $toaddr) {
			$toArr[] = $this->addrFormat($toaddr);
		}
		$to = implode(', ', $toArr);
		
		if (empty($this->Sender)) {
			$params = ' ';
		} else {
			$params = sprintf('-f%s', $this->Sender);
		}
		if ($this->Sender != '' and !ini_get('safe_mode')) {
			$old_from = ini_get('sendmail_from');
			ini_set('sendmail_from', $this->Sender);
		}
		$result = false;
		if ($this->SingleTo && count($toArr) > 1) {
			foreach ($toArr as $toAddr) {
				$result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params);
				$this->doCallback($result, array(
					$toAddr
				), $this->cc, $this->bcc, $this->Subject, $body, $this->From);
			}
		} else {
			$result = $this->mailPassthru($to, $this->Subject, $body, $header, $params);
			$this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From);
		}
		if (isset($old_from)) {
			ini_set('sendmail_from', $old_from);
		}
		if (!$result) {
			throw new phpmailerException($this->lang('instantiate'), self::STOP_CRITICAL);
		}
		return true;
	}
	
	/**
	 * Get an instance to use for SMTP operations.
	 * Override this function to load your own SMTP implementation
	 * @return SMTP
	 */
	public function getSMTPInstance()
	{
		if (!is_object($this->smtp)) {
			$this->smtp = new SMTP;
		}
		return $this->smtp;
	}
	
	/**
	 * Send mail via SMTP.
	 * Returns false if there is a bad MAIL FROM, RCPT, or DATA input.
	 * Uses the PHPMailerSMTP class by default.
	 * @see PHPMailer::getSMTPInstance() to use a different class.
	 * @param string $header The message headers
	 * @param string $body The message body
	 * @throws phpmailerException
	 * @uses SMTP
	 * @access protected
	 * @return boolean
	 */
	protected function smtpSend($header, $body)
	{
		$bad_rcpt = array();
		if (!$this->smtpConnect($this->SMTPOptions)) {
			throw new phpmailerException($this->lang('smtp_connect_failed'), self::STOP_CRITICAL);
		}
		if ('' == $this->Sender) {
			$smtp_from = $this->From;
		} else {
			$smtp_from = $this->Sender;
		}
		if (!$this->smtp->mail($smtp_from)) {
			$this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError()));
			throw new phpmailerException($this->ErrorInfo, self::STOP_CRITICAL);
		}
		
		// Attempt to send to all recipients
		foreach (array(
			$this->to,
			$this->cc,
			$this->bcc
		) as $togroup) {
			foreach ($togroup as $to) {
				if (!$this->smtp->recipient($to[0])) {
					$error      = $this->smtp->getError();
					$bad_rcpt[] = array(
						'to' => $to[0],
						'error' => $error['detail']
					);
					$isSent     = false;
				} else {
					$isSent = true;
				}
				$this->doCallback($isSent, array(
					$to[0]
				), array(), array(), $this->Subject, $body, $this->From);
			}
		}
		
		// Only send the DATA command if we have viable recipients
		if ((count($this->all_recipients) > count($bad_rcpt)) and !$this->smtp->data($header . $body)) {
			throw new phpmailerException($this->lang('data_not_accepted'), self::STOP_CRITICAL);
		}
		if ($this->SMTPKeepAlive) {
			$this->smtp->reset();
		} else {
			$this->smtp->quit();
			$this->smtp->close();
		}
		//Create error message for any bad addresses
		if (count($bad_rcpt) > 0) {
			$errstr = '';
			foreach ($bad_rcpt as $bad) {
				$errstr .= $bad['to'] . ': ' . $bad['error'];
			}
			throw new phpmailerException($this->lang('recipients_failed') . $errstr, self::STOP_CONTINUE);
		}
		return true;
	}
	
	/**
	 * Initiate a connection to an SMTP server.
	 * Returns false if the operation failed.
	 * @param array $options An array of options compatible with stream_context_create()
	 * @uses SMTP
	 * @access public
	 * @throws phpmailerException
	 * @return boolean
	 */
	public function smtpConnect($options = array())
	{
		if (is_null($this->smtp)) {
			$this->smtp = $this->getSMTPInstance();
		}
		
		// Already connected?
		if ($this->smtp->connected()) {
			return true;
		}
		
		$this->smtp->setTimeout($this->Timeout);
		$this->smtp->setDebugLevel($this->SMTPDebug);
		$this->smtp->setDebugOutput($this->Debugoutput);
		$this->smtp->setVerp($this->do_verp);
		$hosts         = explode(';', $this->Host);
		$lastexception = null;
		
		foreach ($hosts as $hostentry) {
			$hostinfo = array();
			if (!preg_match('/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*):?([0-9]*)$/', trim($hostentry), $hostinfo)) {
				// Not a valid host entry
				continue;
			}
			// $hostinfo[2]: optional ssl or tls prefix
			// $hostinfo[3]: the hostname
			// $hostinfo[4]: optional port number
			// The host string prefix can temporarily override the current setting for SMTPSecure
			// If it's not specified, the default value is used
			$prefix = '';
			$secure = $this->SMTPSecure;
			$tls    = ($this->SMTPSecure == 'tls');
			if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) {
				$prefix = 'ssl://';
				$tls    = false; // Can't have SSL and TLS at the same time
				$secure = 'ssl';
			} elseif ($hostinfo[2] == 'tls') {
				$tls    = true;
				// tls doesn't use a prefix
				$secure = 'tls';
			}
			//Do we need the OpenSSL extension?
			$sslext = defined('OPENSSL_ALGO_SHA1');
			if ('tls' === $secure or 'ssl' === $secure) {
				//Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled
				if (!$sslext) {
					throw new phpmailerException($this->lang('extension_missing') . 'openssl', self::STOP_CRITICAL);
				}
			}
			$host  = $hostinfo[3];
			$port  = $this->Port;
			$tport = (integer) $hostinfo[4];
			if ($tport > 0 and $tport < 65536) {
				$port = $tport;
			}
			if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) {
				try {
					if ($this->Helo) {
						$hello = $this->Helo;
					} else {
						$hello = $this->serverHostname();
					}
					$this->smtp->hello($hello);
					//Automatically enable TLS encryption if:
					// * it's not disabled
					// * we have openssl extension
					// * we are not already using SSL
					// * the server offers STARTTLS
					if ($this->SMTPAutoTLS and $sslext and $secure != 'ssl' and $this->smtp->getServerExt('STARTTLS')) {
						$tls = true;
					}
					if ($tls) {
						if (!$this->smtp->startTLS()) {
							throw new phpmailerException($this->lang('connect_host'));
						}
						// We must resend HELO after tls negotiation
						$this->smtp->hello($hello);
					}
					if ($this->SMTPAuth) {
						if (!$this->smtp->authenticate($this->Username, $this->Password, $this->AuthType, $this->Realm, $this->Workstation)) {
							throw new phpmailerException($this->lang('authenticate'));
						}
					}
					return true;
				}
				catch (phpmailerException $exc) {
					$lastexception = $exc;
					$this->edebug($exc->getMessage());
					// We must have connected, but then failed TLS or Auth, so close connection nicely
					$this->smtp->quit();
				}
			}
		}
		// If we get here, all connection attempts have failed, so close connection hard
		$this->smtp->close();
		// As we've caught all exceptions, just report whatever the last one was
		if ($this->exceptions and !is_null($lastexception)) {
			throw $lastexception;
		}
		return false;
	}
	
	/**
	 * Close the active SMTP session if one exists.
	 * @return void
	 */
	public function smtpClose()
	{
		if ($this->smtp !== null) {
			if ($this->smtp->connected()) {
				$this->smtp->quit();
				$this->smtp->close();
			}
		}
	}
	
	/**
	 * Set the language for 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. French is "fr")
	 * @param string $lang_path Path to the language file directory, with trailing separator (slash)
	 * @return boolean
	 * @access public
	 */
	public function setLanguage($langcode = 'en', $lang_path = '')
	{
		// Define full set of translatable strings in English
		$PHPMAILER_LANG = array(
			'authenticate' => 'SMTP Error: Could not authenticate.',
			'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
			'data_not_accepted' => 'SMTP Error: data not accepted.',
			'empty_message' => 'Message body empty',
			'encoding' => 'Unknown encoding: ',
			'execute' => 'Could not execute: ',
			'file_access' => 'Could not access file: ',
			'file_open' => 'File Error: Could not open file: ',
			'from_failed' => 'The following From address failed: ',
			'instantiate' => 'Could not instantiate mail function.',
			'invalid_address' => 'Invalid address',
			'mailer_not_supported' => ' mailer is not supported.',
			'provide_address' => 'You must provide at least one recipient email address.',
			'recipients_failed' => 'SMTP Error: The following recipients failed: ',
			'signing' => 'Signing Error: ',
			'smtp_connect_failed' => 'SMTP connect() failed.',
			'smtp_error' => 'SMTP server error: ',
			'variable_set' => 'Cannot set or reset variable: ',
			'extension_missing' => 'Extension missing: '
		);
		if (empty($lang_path)) {
			// Calculate an absolute path so it can work if CWD is not here
			$lang_path = __DIR__ . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR;
		}
		$foundlang = true;
		$lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php';
		// There is no English translation file
		if ($langcode != 'en') {
			// Make sure language file path is readable
			if (!is_readable($lang_file)) {
				$foundlang = false;
			} else {
				// Overwrite language-specific strings.
				// This way we'll never have missing translation keys.
				$foundlang = include $lang_file;
			}
		}
		$this->language = $PHPMAILER_LANG;
		return (boolean) $foundlang; // Returns false if language not found
	}
	
	/**
	 * Get the array of strings for the current language.
	 * @return array
	 */
	public function getTranslations()
	{
		return $this->language;
	}
	
	/**
	 * Create recipient headers.
	 * @access public
	 * @param string $type
	 * @param array $addr An array of recipient,
	 * where each recipient is a 2-element indexed array with element 0 containing an address
	 * and element 1 containing a name, like:
	 * array(array('joe@example.com', 'Joe User'), array('zoe@example.com', 'Zoe User'))
	 * @return string
	 */
	public function addrAppend($type, $addr)
	{
		$addresses = array();
		foreach ($addr as $address) {
			$addresses[] = $this->addrFormat($address);
		}
		return $type . ': ' . implode(', ', $addresses) . $this->LE;
	}
	
	/**
	 * Format an address for use in a message header.
	 * @access public
	 * @param array $addr A 2-element indexed array, element 0 containing an address, element 1 containing a name
	 *      like array('joe@example.com', 'Joe User')
	 * @return string
	 */
	public function addrFormat($addr)
	{
		if (empty($addr[1])) { // No name provided
			return $this->secureHeader($addr[0]);
		} else {
			return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . ' <' . $this->secureHeader($addr[0]) . '>';
		}
	}
	
	/**
	 * Word-wrap message.
	 * For use with mailers that do not automatically perform wrapping
	 * and for quoted-printable encoded messages.
	 * 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, $qp_mode = false)
	{
		if ($qp_mode) {
			$soft_break = sprintf(' =%s', $this->LE);
		} else {
			$soft_break = $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');
		$lelen   = strlen($this->LE);
		$crlflen = strlen(self::CRLF);
		
		$message = $this->fixEOL($message);
		//Remove a trailing line break
		if (substr($message, -$lelen) == $this->LE) {
			$message = substr($message, 0, -$lelen);
		}
		
		//Split message into lines
		$lines   = explode($this->LE, $message);
		//Message will be rebuilt in here
		$message = '';
		foreach ($lines as $line) {
			$words     = explode(' ', $line);
			$buf       = '';
			$firstword = true;
			foreach ($words as $word) {
				if ($qp_mode and (strlen($word) > $length)) {
					$space_left = $length - strlen($buf) - $crlflen;
					if (!$firstword) {
						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', self::CRLF);
						} else {
							$message .= $buf . $soft_break;
						}
						$buf = '';
					}
					while (strlen($word) > 0) {
						if ($length <= 0) {
							break;
						}
						$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', self::CRLF);
						} else {
							$buf = $part;
						}
					}
				} else {
					$buf_o = $buf;
					if (!$firstword) {
						$buf .= ' ';
					}
					$buf .= $word;
					
					if (strlen($buf) > $length and $buf_o != '') {
						$message .= $buf_o . $soft_break;
						$buf = $word;
					}
				}
				$firstword = false;
			}
			$message .= $buf . self::CRLF;
		}
		
		return $message;
	}
	
	/**
	 * Find the 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 integer $maxLength Find the last character boundary prior to this length
	 * @return integer
	 */
	public function utf8CharBoundary($encodedText, $maxLength)
	{
		$foundSplitPos = false;
		$lookBack      = 3;
		while (!$foundSplitPos) {
			$lastChunk      = substr($encodedText, $maxLength - $lookBack, $lookBack);
			$encodedCharPos = strpos($lastChunk, '=');
			if (false !== $encodedCharPos) {
				// 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 ($dec < 128) {
					// Single byte character.
					// If the encoded char was found at pos 0, it will fit
					// otherwise reduce maxLength to start of the encoded char
					if ($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;
	}
	
	/**
	 * Apply word wrapping to the message body.
	 * Wraps the message body to the number of chars set in the WordWrap property.
	 * You should only do this to plain-text bodies as wrapping HTML tags may break them.
	 * This is called automatically by createBody(), so you don't need to call it yourself.
	 * @access public
	 * @return void
	 */
	public function setWordWrap()
	{
		if ($this->WordWrap < 1) {
			return;
		}
		
		switch ($this->message_type) {
			case 'alt':
			case 'alt_inline':
			case 'alt_attach':
			case 'alt_inline_attach':
				$this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap);
				break;
			default:
				$this->Body = $this->wrapText($this->Body, $this->WordWrap);
				break;
		}
	}
	
	/**
	 * Assemble message headers.
	 * @access public
	 * @return string The assembled headers
	 */
	public function createHeader()
	{
		$result = '';
		
		if ($this->MessageDate == '') {
			$this->MessageDate = self::rfcDate();
		}
		$result .= $this->headerLine('Date', $this->MessageDate);
		
		
		// To be created automatically by mail()
		if ($this->SingleTo) {
			if ($this->Mailer != 'mail') {
				foreach ($this->to as $toaddr) {
					$this->SingleToArray[] = $this->addrFormat($toaddr);
				}
			}
		} else {
			if (count($this->to) > 0) {
				if ($this->Mailer != 'mail') {
					$result .= $this->addrAppend('To', $this->to);
				}
			} elseif (count($this->cc) == 0) {
				$result .= $this->headerLine('To', 'undisclosed-recipients:;');
			}
		}
		
		$result .= $this->addrAppend('From', array(
			array(
				trim($this->From),
				$this->FromName
			)
		));
		
		// 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' or $this->Mailer == 'qmail' or $this->Mailer == 'mail') and count($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 != '') {
			$this->lastMessageID = $this->MessageID;
		} else {
			$this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->ServerHostname());
		}
		$result .= $this->headerLine('Message-ID', $this->lastMessageID);
		$result .= $this->headerLine('X-Priority', $this->Priority);
		if ($this->XMailer == '') {
			$result .= $this->headerLine('X-Mailer', 'PHPMailer ' . $this->Version . ' (https://github.com/PHPMailer/PHPMailer/)');
		} else {
			$myXmailer = trim($this->XMailer);
			if ($myXmailer) {
				$result .= $this->headerLine('X-Mailer', $myXmailer);
			}
		}
		
		if ($this->ConfirmReadingTo != '') {
			$result .= $this->headerLine('Disposition-Notification-To', '<' . trim($this->ConfirmReadingTo) . '>');
		}
		
		// Add custom headers
		foreach ($this->CustomHeader as $header) {
			$result .= $this->headerLine(trim($header[0]), $this->encodeHeader(trim($header[1])));
		}
		if (!$this->sign_key_file) {
			$result .= $this->headerLine('MIME-Version', '1.0');
			$result .= $this->getMailMIME();
		}
		
		return $result;
	}
	
	/**
	 * Get the message MIME type headers.
	 * @access public
	 * @return string
	 */
	public function getMailMIME()
	{
		$result      = '';
		$ismultipart = true;
		switch ($this->message_type) {
			case 'inline':
				$result .= $this->headerLine('Content-Type', 'multipart/related;');
				$result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
				break;
			case 'attach':
			case 'inline_attach':
			case 'alt_attach':
			case 'alt_inline_attach':
				$result .= $this->headerLine('Content-Type', 'multipart/mixed;');
				$result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
				break;
			case 'alt':
			case 'alt_inline':
				$result .= $this->headerLine('Content-Type', 'multipart/alternative;');
				$result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
				break;
			default:
				// Catches case 'plain': and case '':
				$result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet);
				$ismultipart = false;
				break;
		}
		// RFC1341 part 5 says 7bit is assumed if not specified
		if ($this->Encoding != '7bit') {
			// RFC 2045 section 6.4 says multipart MIME parts may only use 7bit, 8bit or binary CTE
			if ($ismultipart) {
				if ($this->Encoding == '8bit') {
					$result .= $this->headerLine('Content-Transfer-Encoding', '8bit');
				}
				// The only remaining alternatives are quoted-printable and base64, which are both 7bit compatible
			} else {
				$result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding);
			}
		}
		
		if ($this->Mailer != 'mail') {
			$result .= $this->LE;
		}
		
		return $result;
	}
	
	/**
	 * Returns the whole MIME message.
	 * Includes complete headers and body.
	 * Only valid post preSend().
	 * @see PHPMailer::preSend()
	 * @access public
	 * @return string
	 */
	public function getSentMIMEMessage()
	{
		return $this->MIMEHeader . $this->mailHeader . self::CRLF . $this->MIMEBody;
	}
	
	/**
	 * Assemble the message body.
	 * Returns an empty string on failure.
	 * @access public
	 * @throws phpmailerException
	 * @return string The assembled message body
	 */
	public function createBody()
	{
		$body              = '';
		//Create unique IDs and preset boundaries
		$this->uniqueid    = md5(uniqid(time()));
		$this->boundary[1] = 'b1_' . $this->uniqueid;
		$this->boundary[2] = 'b2_' . $this->uniqueid;
		$this->boundary[3] = 'b3_' . $this->uniqueid;
		
		if ($this->sign_key_file) {
			$body .= $this->getMailMIME() . $this->LE;
		}
		
		$this->setWordWrap();
		
		$bodyEncoding = $this->Encoding;
		$bodyCharSet  = $this->CharSet;
		//Can we do a 7-bit downgrade?
		if ($bodyEncoding == '8bit' and !$this->has8bitChars($this->Body)) {
			$bodyEncoding = '7bit';
			$bodyCharSet  = 'us-ascii';
		}
		//If lines are too long, change to quoted-printable transfer encoding
		if (self::hasLineLongerThanMax($this->Body)) {
			$this->Encoding = 'quoted-printable';
			$bodyEncoding   = 'quoted-printable';
		}
		
		$altBodyEncoding = $this->Encoding;
		$altBodyCharSet  = $this->CharSet;
		//Can we do a 7-bit downgrade?
		if ($altBodyEncoding == '8bit' and !$this->has8bitChars($this->AltBody)) {
			$altBodyEncoding = '7bit';
			$altBodyCharSet  = 'us-ascii';
		}
		//If lines are too long, change to quoted-printable transfer encoding
		if (self::hasLineLongerThanMax($this->AltBody)) {
			$altBodyEncoding = 'quoted-printable';
		}
		//Use this as a preamble in all multipart message types
		$mimepre = "This is a multi-part message in MIME format." . $this->LE . $this->LE;
		switch ($this->message_type) {
			case 'inline':
				$body .= $mimepre;
				$body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll('inline', $this->boundary[1]);
				break;
			case 'attach':
				$body .= $mimepre;
				$body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll('attachment', $this->boundary[1]);
				break;
			case 'inline_attach':
				$body .= $mimepre;
				$body .= $this->textLine('--' . $this->boundary[1]);
				$body .= $this->headerLine('Content-Type', 'multipart/related;');
				$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
				$body .= $this->LE;
				$body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding);
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll('inline', $this->boundary[2]);
				$body .= $this->LE;
				$body .= $this->attachAll('attachment', $this->boundary[1]);
				break;
			case 'alt':
				$body .= $mimepre;
				$body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding);
				$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->getBoundary($this->boundary[1], $bodyCharSet, 'text/html', $bodyEncoding);
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				$body .= $this->LE . $this->LE;
				if (!empty($this->Ical)) {
					$body .= $this->getBoundary($this->boundary[1], '', 'text/calendar; method=REQUEST', '');
					$body .= $this->encodeString($this->Ical, $this->Encoding);
					$body .= $this->LE . $this->LE;
				}
				$body .= $this->endBoundary($this->boundary[1]);
				break;
			case 'alt_inline':
				$body .= $mimepre;
				$body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding);
				$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->textLine('--' . $this->boundary[1]);
				$body .= $this->headerLine('Content-Type', 'multipart/related;');
				$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
				$body .= $this->LE;
				$body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding);
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll('inline', $this->boundary[2]);
				$body .= $this->LE;
				$body .= $this->endBoundary($this->boundary[1]);
				break;
			case 'alt_attach':
				$body .= $mimepre;
				$body .= $this->textLine('--' . $this->boundary[1]);
				$body .= $this->headerLine('Content-Type', 'multipart/alternative;');
				$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
				$body .= $this->LE;
				$body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding);
				$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding);
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->endBoundary($this->boundary[2]);
				$body .= $this->LE;
				$body .= $this->attachAll('attachment', $this->boundary[1]);
				break;
			case 'alt_inline_attach':
				$body .= $mimepre;
				$body .= $this->textLine('--' . $this->boundary[1]);
				$body .= $this->headerLine('Content-Type', 'multipart/alternative;');
				$body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
				$body .= $this->LE;
				$body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding);
				$body .= $this->encodeString($this->AltBody, $altBodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->textLine('--' . $this->boundary[2]);
				$body .= $this->headerLine('Content-Type', 'multipart/related;');
				$body .= $this->textLine("\tboundary=\"" . $this->boundary[3] . '"');
				$body .= $this->LE;
				$body .= $this->getBoundary($this->boundary[3], $bodyCharSet, 'text/html', $bodyEncoding);
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				$body .= $this->LE . $this->LE;
				$body .= $this->attachAll('inline', $this->boundary[3]);
				$body .= $this->LE;
				$body .= $this->endBoundary($this->boundary[2]);
				$body .= $this->LE;
				$body .= $this->attachAll('attachment', $this->boundary[1]);
				break;
			default:
				// catch case 'plain' and case ''
				$body .= $this->encodeString($this->Body, $bodyEncoding);
				break;
		}
		
		if ($this->isError()) {
			$body = '';
		} elseif ($this->sign_key_file) {
			try {
				if (!defined('PKCS7_TEXT')) {
					throw new phpmailerException($this->lang('extension_missing') . 'openssl');
				}
				// @TODO would be nice to use php://temp streams here, but need to wrap for PHP < 5.1
				$file = tempnam(sys_get_temp_dir(), 'mail');
				if (false === file_put_contents($file, $body)) {
					throw new phpmailerException($this->lang('signing') . ' Could not write temp file');
				}
				$signed = tempnam(sys_get_temp_dir(), 'signed');
				//Workaround for PHP bug https://bugs.php.net/bug.php?id=69197
				if (empty($this->sign_extracerts_file)) {
					$sign = @openssl_pkcs7_sign($file, $signed, 'file://' . realpath($this->sign_cert_file), array(
						'file://' . realpath($this->sign_key_file),
						$this->sign_key_pass
					), null);
				} else {
					$sign = @openssl_pkcs7_sign($file, $signed, 'file://' . realpath($this->sign_cert_file), array(
						'file://' . realpath($this->sign_key_file),
						$this->sign_key_pass
					), null, PKCS7_DETACHED, $this->sign_extracerts_file);
				}
				if ($sign) {
					@unlink($file);
					$body = file_get_contents($signed);
					@unlink($signed);
					//The message returned by openssl contains both headers and body, so need to split them up
					$parts = explode("\n\n", $body, 2);
					$this->MIMEHeader .= $parts[0] . $this->LE . $this->LE;
					$body = $parts[1];
				} else {
					@unlink($file);
					@unlink($signed);
					throw new phpmailerException($this->lang('signing') . openssl_error_string());
				}
			}
			catch (phpmailerException $exc) {
				$body = '';
				if ($this->exceptions) {
					throw $exc;
				}
			}
		}
		return $body;
	}
	
	/**
	 * Return the start of a message boundary.
	 * @access protected
	 * @param string $boundary
	 * @param string $charSet
	 * @param string $contentType
	 * @param string $encoding
	 * @return string
	 */
	protected function getBoundary($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 .= $this->LE;
		// RFC1341 part 5 says 7bit is assumed if not specified
		if ($encoding != '7bit') {
			$result .= $this->headerLine('Content-Transfer-Encoding', $encoding);
		}
		$result .= $this->LE;
		
		return $result;
	}
	
	/**
	 * Return the end of a message boundary.
	 * @access protected
	 * @param string $boundary
	 * @return string
	 */
	protected function endBoundary($boundary)
	{
		return $this->LE . '--' . $boundary . '--' . $this->LE;
	}
	
	/**
	 * Set the message type.
	 * PHPMailer only supports some preset message types,
	 * not arbitrary MIME structures.
	 * @access protected
	 * @return void
	 */
	protected function setMessageType()
	{
		$type = array();
		if ($this->alternativeExists()) {
			$type[] = 'alt';
		}
		if ($this->inlineImageExists()) {
			$type[] = 'inline';
		}
		if ($this->attachmentExists()) {
			$type[] = 'attach';
		}
		$this->message_type = implode('_', $type);
		if ($this->message_type == '') {
			$this->message_type = 'plain';
		}
	}
	
	/**
	 * Format a header line.
	 * @access public
	 * @param string $name
	 * @param string $value
	 * @return string
	 */
	public function headerLine($name, $value)
	{
		return $name . ': ' . $value . $this->LE;
	}
	
	/**
	 * Return a formatted mail line.
	 * @access public
	 * @param string $value
	 * @return string
	 */
	public function textLine($value)
	{
		return $value . $this->LE;
	}
	
	/**
	 * Add an attachment from a path on the filesystem.
	 * Returns false if the file could not be found or read.
	 * @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.
	 * @param string $disposition Disposition to use
	 * @throws phpmailerException
	 * @return boolean
	 */
	public function addAttachment($path, $name = '', $encoding = 'base64', $type = '', $disposition = 'attachment')
	{
		try {
			if (!@is_file($path)) {
				throw new phpmailerException($this->lang('file_access') . $path, self::STOP_CONTINUE);
			}
			
			// If a MIME type is not specified, try to work it out from the file name
			if ($type == '') {
				$type = self::filenameToType($path);
			}
			
			$filename = basename($path);
			if ($name == '') {
				$name = $filename;
			}
			
			$this->attachment[] = array(
				0 => $path,
				1 => $filename,
				2 => $name,
				3 => $encoding,
				4 => $type,
				5 => false, // isStringAttachment
				6 => $disposition,
				7 => 0
			);
			
		}
		catch (phpmailerException $exc) {
			$this->setError($exc->getMessage());
			$this->edebug($exc->getMessage());
			if ($this->exceptions) {
				throw $exc;
			}
			return false;
		}
		return true;
	}
	
	/**
	 * Return the array of attachments.
	 * @return array
	 */
	public function getAttachments()
	{
		return $this->attachment;
	}
	
	/**
	 * Attach all file, string, and binary attachments to the message.
	 * Returns an empty string on failure.
	 * @access protected
	 * @param string $disposition_type
	 * @param string $boundary
	 * @return string
	 */
	protected function attachAll($disposition_type, $boundary)
	{
		// Return text of body
		$mime    = array();
		$cidUniq = array();
		$incl    = array();
		
		// Add all attachments
		foreach ($this->attachment as $attachment) {
			// Check if it is a valid disposition_filter
			if ($attachment[6] == $disposition_type) {
				// Check for string attachment
				$string  = '';
				$path    = '';
				$bString = $attachment[5];
				if ($bString) {
					$string = $attachment[0];
				} else {
					$path = $attachment[0];
				}
				
				$inclhash = md5(serialize($attachment));
				if (in_array($inclhash, $incl)) {
					continue;
				}
				$incl[]      = $inclhash;
				$name        = $attachment[2];
				$encoding    = $attachment[3];
				$type        = $attachment[4];
				$disposition = $attachment[6];
				$cid         = $attachment[7];
				if ($disposition == 'inline' && isset($cidUniq[$cid])) {
					continue;
				}
				$cidUniq[$cid] = true;
				
				$mime[] = sprintf('--%s%s', $boundary, $this->LE);
				$mime[] = sprintf('Content-Type: %s; name="%s"%s', $type, $this->encodeHeader($this->secureHeader($name)), $this->LE);
				// RFC1341 part 5 says 7bit is assumed if not specified
				if ($encoding != '7bit') {
					$mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, $this->LE);
				}
				
				if ($disposition == 'inline') {
					$mime[] = sprintf('Content-ID: <%s>%s', $cid, $this->LE);
				}
				
				// If a filename contains any of these chars, it should be quoted,
				// but not otherwise: RFC2183 & RFC2045 5.1
				// Fixes a warning in IETF's msglint MIME checker
				// Allow for bypassing the Content-Disposition header totally
				if (!(empty($disposition))) {
					$encoded_name = $this->encodeHeader($this->secureHeader($name));
					if (preg_match('/[ \(\)<>@,;:\\"\/\[\]\?=]/', $encoded_name)) {
						$mime[] = sprintf('Content-Disposition: %s; filename="%s"%s', $disposition, $encoded_name, $this->LE . $this->LE);
					} else {
						$mime[] = sprintf('Content-Disposition: %s; filename=%s%s', $disposition, $encoded_name, $this->LE . $this->LE);
					}
				} else {
					$mime[] = $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', $boundary, $this->LE);
		
		return implode('', $mime);
	}
	
	/**
	 * Encode a file attachment in requested format.
	 * Returns an empty string on failure.
	 * @param string $path The full path to the file
	 * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
	 * @throws phpmailerException
	 * @see EncodeFile(encodeFile
	 * @access protected
	 * @return string
	 */
	protected function encodeFile($path, $encoding = 'base64')
	{
		try {
			if (!is_readable($path)) {
				throw new phpmailerException($this->lang('file_open') . $path, self::STOP_CONTINUE);
			}
			$magic_quotes = get_magic_quotes_runtime();
			if ($magic_quotes) {
				if (version_compare(PHP_VERSION, '5.3.0', '<')) {
					set_magic_quotes_runtime(false);
				} else {
					//Doesn't exist in PHP 5.4, but we don't need to check because
					//get_magic_quotes_runtime always returns false in 5.4+
					//so it will never get here
					ini_set('magic_quotes_runtime', false);
				}
			}
			$file_buffer = file_get_contents($path);
			$file_buffer = $this->encodeString($file_buffer, $encoding);
			if ($magic_quotes) {
				if (version_compare(PHP_VERSION, '5.3.0', '<')) {
					set_magic_quotes_runtime($magic_quotes);
				} else {
					ini_set('magic_quotes_runtime', $magic_quotes);
				}
			}
			return $file_buffer;
		}
		catch (Exception $exc) {
			$this->setError($exc->getMessage());
			return '';
		}
	}
	
	/**
	 * Encode a string in 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:
				$this->setError($this->lang('encoding') . $encoding);
				break;
		}
		return $encoded;
	}
	
	/**
	 * Encode a header string optimally.
	 * Picks shortest of Q, B, quoted-printable or none.
	 * @access public
	 * @param string $str
	 * @param string $position
	 * @return string
	 */
	public function encodeHeader($str, $position = 'text')
	{
		$matchcount = 0;
		switch (strtolower($position)) {
			case 'phrase':
				if (!preg_match('/[\200-\377]/', $str)) {
					// Can't use addslashes as we don't know the value of magic_quotes_sybase
					$encoded = addcslashes($str, "\0..\37\177\\\"");
					if (($str == $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) {
						return ($encoded);
					} else {
						return ("\"$encoded\"");
					}
				}
				$matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
				break;
			/** @noinspection PhpMissingBreakStatementInspection */
			case 'comment':
				$matchcount = preg_match_all('/[()"]/', $str, $matches);
			// Intentional fall-through
			case 'text':
			default:
				$matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);
				break;
		}
		
		//There are no chars that need encoding
		if ($matchcount == 0) {
			return ($str);
		}
		
		$maxlen = 75 - 7 - strlen($this->CharSet);
		// Try to select the encoding which should produce the shortest output
		if ($matchcount > strlen($str) / 3) {
			// More than a third of the content will need encoding, so B encoding will be most efficient
			$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, "\n");
			} 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);
			$encoded  = str_replace('=' . self::CRLF, "\n", trim($encoded));
		}
		
		$encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded);
		$encoded = trim(str_replace("\n", $this->LE, $encoded));
		
		return $encoded;
	}
	
	/**
	 * Check if a string contains multi-byte characters.
	 * @access public
	 * @param string $str multi-byte text to wrap encode
	 * @return boolean
	 */
	public function hasMultiBytes($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;
		}
	}
	
	/**
	 * Does a string contain any 8-bit chars (in any charset)?
	 * @param string $text
	 * @return boolean
	 */
	public function has8bitChars($text)
	{
		return (boolean) preg_match('/[\x80-\xFF]/', $text);
	}
	
	/**
	 * Encode and wrap long multibyte strings for mail headers
	 * without breaking lines within a character.
	 * Adapted from a function by paravoid
	 * @link http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
	 * @access public
	 * @param string $str multi-byte text to wrap encode
	 * @param string $linebreak string to use as linefeed/end-of-line
	 * @return string
	 */
	public function base64EncodeWrapMB($str, $linebreak = null)
	{
		$start   = '=?' . $this->CharSet . '?B?';
		$end     = '?=';
		$encoded = '';
		if ($linebreak === null) {
			$linebreak = $this->LE;
		}
		
		$mb_length = mb_strlen($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
		$avgLength = floor($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 . $linebreak;
		}
		
		// Chomp the last linefeed
		$encoded = substr($encoded, 0, -strlen($linebreak));
		return $encoded;
	}
	
	/**
	 * Encode a string in quoted-printable format.
	 * According to RFC2045 section 6.7.
	 * @access public
	 * @param string $string The text to encode
	 * @param integer $line_max Number of chars allowed on a line before wrapping
	 * @return string
	 * @link http://www.php.net/manual/en/function.quoted-printable-decode.php#89417 Adapted from this comment
	 */
	public function encodeQP($string, $line_max = 76)
	{
		// Use native function if it's available (>= PHP5.3)
		if (function_exists('quoted_printable_encode')) {
			return $this->fixEOL(quoted_printable_encode($string));
		}
		// Fall back to a pure PHP implementation
		$string = str_replace(array(
			'%20',
			'%0D%0A.',
			'%0D%0A',
			'%'
		), array(
			' ',
			"\r\n=2E",
			"\r\n",
			'='
		), rawurlencode($string));
		$string = preg_replace('/[^\r\n]{' . ($line_max - 3) . '}[^=\r\n]{2}/', "$0=\r\n", $string);
		return $this->fixEOL($string);
	}
	
	/**
	 * Backward compatibility wrapper for an old QP encoding function that was removed.
	 * @see PHPMailer::encodeQP()
	 * @access public
	 * @param string $string
	 * @param integer $line_max
	 * @param boolean $space_conv
	 * @return string
	 * @deprecated Use encodeQP instead.
	 */
	public function encodeQPphp($string, $line_max = 76, /** @noinspection PhpUnusedParameterInspection */ $space_conv = false)
	{
		return $this->encodeQP($string, $line_max);
	}
	
	/**
	 * Encode a string using 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);
	}
	
	
	/**
	 * Add a string or binary attachment (non-filesystem).
	 * 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.
	 * @param string $disposition Disposition to use
	 * @return void
	 */
	public function addStringAttachment($string, $filename, $encoding = 'base64', $type = '', $disposition = 'attachment')
	{
		// If a MIME type is not specified, try to work it out from the file name
		if ($type == '') {
			$type = self::filenameToType($filename);
		}
		// Append to $attachment array
		$this->attachment[] = array(
			0 => $string,
			1 => $filename,
			2 => basename($filename),
			3 => $encoding,
			4 => $type,
			5 => true, // isStringAttachment
			6 => $disposition,
			7 => 0
		);
	}
	
	/**
	 * Add an embedded (inline) attachment from a file.
	 * This can include images, sounds, and just about any other document type.
	 * These differ from 'regular' attachments in that they are intended to be
	 * displayed inline with the message, not just attached for download.
	 * This is used in HTML messages that embed the images
	 * the HTML refers to using the $cid value.
	 * @param string $path Path to the attachment.
	 * @param string $cid Content ID of the attachment; Use this to reference
	 *        the content when using an embedded image in HTML.
	 * @param string $name Overrides the attachment name.
	 * @param string $encoding File encoding (see $Encoding).
	 * @param string $type File MIME type.
	 * @param string $disposition Disposition to use
	 * @return boolean True on successfully adding an attachment
	 */
	public function addEmbeddedImage($path, $cid, $name = '', $encoding = 'base64', $type = '', $disposition = 'inline')
	{
		if (!@is_file($path)) {
			$this->setError($this->lang('file_access') . $path);
			return false;
		}
		
		// If a MIME type is not specified, try to work it out from the file name
		if ($type == '') {
			$type = self::filenameToType($path);
		}
		
		$filename = basename($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 => $disposition,
			7 => $cid
		);
		return true;
	}
	
	/**
	 * Add an embedded stringified attachment.
	 * This can include images, sounds, and just about any other document type.
	 * Be sure to set the $type to an image type for images:
	 * JPEG images use 'image/jpeg', GIF uses 'image/gif', PNG uses 'image/png'.
	 * @param string $string The attachment binary data.
	 * @param string $cid Content ID of the attachment; Use this to reference
	 *        the content when using an embedded image in HTML.
	 * @param string $name
	 * @param string $encoding File encoding (see $Encoding).
	 * @param string $type MIME type.
	 * @param string $disposition Disposition to use
	 * @return boolean True on successfully adding an attachment
	 */
	public function addStringEmbeddedImage($string, $cid, $name = '', $encoding = 'base64', $type = '', $disposition = 'inline')
	{
		// If a MIME type is not specified, try to work it out from the name
		if ($type == '') {
			$type = self::filenameToType($name);
		}
		
		// Append to $attachment array
		$this->attachment[] = array(
			0 => $string,
			1 => $name,
			2 => $name,
			3 => $encoding,
			4 => $type,
			5 => true, // isStringAttachment
			6 => $disposition,
			7 => $cid
		);
		return true;
	}
	
	/**
	 * Check if an inline attachment is present.
	 * @access public
	 * @return boolean
	 */
	public function inlineImageExists()
	{
		foreach ($this->attachment as $attachment) {
			if ($attachment[6] == 'inline') {
				return true;
			}
		}
		return false;
	}
	
	/**
	 * Check if an attachment (non-inline) is present.
	 * @return boolean
	 */
	public function attachmentExists()
	{
		foreach ($this->attachment as $attachment) {
			if ($attachment[6] == 'attachment') {
				return true;
			}
		}
		return false;
	}
	
	/**
	 * Check if this message has an alternative body set.
	 * @return boolean
	 */
	public function alternativeExists()
	{
		return !empty($this->AltBody);
	}
	
	/**
	 * Clear all To recipients.
	 * @return void
	 */
	public function clearAddresses()
	{
		foreach ($this->to as $to) {
			unset($this->all_recipients[strtolower($to[0])]);
		}
		$this->to = array();
	}
	
	/**
	 * Clear all CC recipients.
	 * @return void
	 */
	public function clearCCs()
	{
		foreach ($this->cc as $cc) {
			unset($this->all_recipients[strtolower($cc[0])]);
		}
		$this->cc = array();
	}
	
	/**
	 * Clear all BCC recipients.
	 * @return void
	 */
	public function clearBCCs()
	{
		foreach ($this->bcc as $bcc) {
			unset($this->all_recipients[strtolower($bcc[0])]);
		}
		$this->bcc = array();
	}
	
	/**
	 * Clear all ReplyTo recipients.
	 * @return void
	 */
	public function clearReplyTos()
	{
		$this->ReplyTo = array();
	}
	
	/**
	 * Clear all recipient types.
	 * @return void
	 */
	public function clearAllRecipients()
	{
		$this->to             = array();
		$this->cc             = array();
		$this->bcc            = array();
		$this->all_recipients = array();
	}
	
	/**
	 * Clear all filesystem, string, and binary attachments.
	 * @return void
	 */
	public function clearAttachments()
	{
		$this->attachment = array();
	}
	
	/**
	 * Clear all custom headers.
	 * @return void
	 */
	public function clearCustomHeaders()
	{
		$this->CustomHeader = array();
	}
	
	/**
	 * Add an error message to the error container.
	 * @access protected
	 * @param string $msg
	 * @return void
	 */
	protected function setError($msg)
	{
		$this->error_count++;
		if ($this->Mailer == 'smtp' and !is_null($this->smtp)) {
			$lasterror = $this->smtp->getError();
			if (!empty($lasterror['error'])) {
				$msg .= $this->lang('smtp_error') . $lasterror['error'];
				if (!empty($lasterror['detail'])) {
					$msg .= ' Detail: ' . $lasterror['detail'];
				}
				if (!empty($lasterror['smtp_code'])) {
					$msg .= ' SMTP code: ' . $lasterror['smtp_code'];
				}
				if (!empty($lasterror['smtp_code_ex'])) {
					$msg .= ' Additional SMTP info: ' . $lasterror['smtp_code_ex'];
				}
			}
		}
		$this->ErrorInfo = $msg;
	}
	
	/**
	 * Return an RFC 822 formatted date.
	 * @access public
	 * @return string
	 * @static
	 */
	public static function rfcDate()
	{
		// Set the time zone to whatever the default is to avoid 500 errors
		// Will default to UTC if it's not set properly in php.ini
		date_default_timezone_set(@date_default_timezone_get());
		return date('D, j M Y H:i:s O');
	}
	
	/**
	 * Get the server hostname.
	 * Returns 'localhost.localdomain' if unknown.
	 * @access protected
	 * @return string
	 */
	protected function serverHostname()
	{
		$result = 'localhost.localdomain';
		if (!empty($this->Hostname)) {
			$result = $this->Hostname;
		} elseif (isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER) and !empty($_SERVER['SERVER_NAME'])) {
			$result = $_SERVER['SERVER_NAME'];
		} elseif (function_exists('gethostname') && gethostname() !== false) {
			$result = gethostname();
		} elseif (php_uname('n') !== false) {
			$result = php_uname('n');
		}
		return $result;
	}
	
	/**
	 * Get an error message in the current language.
	 * @access protected
	 * @param string $key
	 * @return string
	 */
	protected function lang($key)
	{
		if (count($this->language) < 1) {
			$this->setLanguage('en'); // set the default language
		}
		
		if (array_key_exists($key, $this->language)) {
			if ($key == 'smtp_connect_failed') {
				//Include a link to troubleshooting docs on SMTP connection failure
				//this is by far the biggest cause of support questions
				//but it's usually not PHPMailer's fault.
				return $this->language[$key] . ' https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting';
			}
			return $this->language[$key];
		} else {
			//Return the key as a fallback
			return $key;
		}
	}
	
	/**
	 * Check if an error occurred.
	 * @access public
	 * @return boolean True if an error did occur.
	 */
	public function isError()
	{
		return ($this->error_count > 0);
	}
	
	/**
	 * Ensure consistent line endings in a string.
	 * Changes every end of line from CRLF, CR or LF to $this->LE.
	 * @access public
	 * @param string $str String to fixEOL
	 * @return string
	 */
	public function fixEOL($str)
	{
		// Normalise to \n
		$nstr = str_replace(array(
			"\r\n",
			"\r"
		), "\n", $str);
		// Now convert LE as needed
		if ($this->LE !== "\n") {
			$nstr = str_replace("\n", $this->LE, $nstr);
		}
		return $nstr;
	}
	
	/**
	 * Add a custom header.
	 * $name value can be overloaded to contain
	 * both header name and value (name:value)
	 * @access public
	 * @param string $name Custom header name
	 * @param string $value Header value
	 * @return void
	 */
	public function addCustomHeader($name, $value = null)
	{
		if ($value === null) {
			// Value passed in as name:value
			$this->CustomHeader[] = explode(':', $name, 2);
		} else {
			$this->CustomHeader[] = array(
				$name,
				$value
			);
		}
	}
	
	/**
	 * Returns all custom headers
	 *
	 * @return array
	 */
	public function getCustomHeaders()
	{
		return $this->CustomHeader;
	}
	
	/**
	 * Create a message from an HTML string.
	 * Automatically makes modifications for inline images and backgrounds
	 * and creates a plain-text version by converting the HTML.
	 * Overwrites any existing values in $this->Body and $this->AltBody
	 * @access public
	 * @param string $message HTML message string
	 * @param string $basedir baseline directory for path
	 * @param boolean|callable $advanced Whether to use the internal HTML to text converter
	 *    or your own custom converter @see html2text()
	 * @return string $message
	 */
	public function msgHTML($message, $basedir = '', $advanced = false)
	{
		preg_match_all('/(src|background)=["\'](.*)["\']/Ui', $message, $images);
		if (isset($images[2])) {
			foreach ($images[2] as $imgindex => $url) {
				// Convert data URIs into embedded images
				if (preg_match('#^data:(image[^;,]*)(;base64)?,#', $url, $match)) {
					$data = substr($url, strpos($url, ','));
					if ($match[2]) {
						$data = base64_decode($data);
					} else {
						$data = rawurldecode($data);
					}
					$cid = md5($url) . '@phpmailer.0'; // RFC2392 S 2
					if ($this->addStringEmbeddedImage($data, $cid, '', 'base64', $match[1])) {
						$message = str_replace($images[0][$imgindex], $images[1][$imgindex] . '="cid:' . $cid . '"', $message);
					}
				} elseif (!preg_match('#^[A-z]+://#', $url)) {
					// Do not change urls for absolute images (thanks to corvuscorax)
					$filename  = basename($url);
					$directory = dirname($url);
					if ($directory == '.') {
						$directory = '';
					}
					$cid = md5($url) . '@phpmailer.0'; // RFC2392 S 2
					if (strlen($basedir) > 1 && substr($basedir, -1) != '/') {
						$basedir .= '/';
					}
					if (strlen($directory) > 1 && substr($directory, -1) != '/') {
						$directory .= '/';
					}
					if ($this->addEmbeddedImage($basedir . $directory . $filename, $cid, $filename, 'base64', self::_mime_types((string) self::mb_pathinfo($filename, PATHINFO_EXTENSION)))) {
						$message = preg_replace('/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui', $images[1][$imgindex] . '="cid:' . $cid . '"', $message);
					}
				}
			}
		}
		$this->isHTML(true);
		// Convert all message body line breaks to CRLF, makes quoted-printable encoding work much better
		$this->Body    = $this->normalizeBreaks($message);
		$this->AltBody = $this->normalizeBreaks($this->html2text($message, $advanced));
		if (empty($this->AltBody)) {
			$this->AltBody = 'To view this email message, open it in a program that understands HTML!' . self::CRLF . self::CRLF;
		}
		return $this->Body;
	}
	
	/**
	 * Convert an HTML string into plain text.
	 * This is used by msgHTML().
	 * Note - older versions of this function used a bundled advanced converter
	 * which was been removed for license reasons in #232
	 * Example usage:
	 * <code>
	 * // Use default conversion
	 * $plain = $mail->html2text($html);
	 * // Use your own custom converter
	 * $plain = $mail->html2text($html, function($html) {
	 *     $converter = new MyHtml2text($html);
	 *     return $converter->get_text();
	 * });
	 * </code>
	 * @param string $html The HTML text to convert
	 * @param boolean|callable $advanced Any boolean value to use the internal converter,
	 *   or provide your own callable for custom conversion.
	 * @return string
	 */
	public function html2text($html, $advanced = false)
	{
		if (is_callable($advanced)) {
			return call_user_func($advanced, $html);
		}
		return html_entity_decode(trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))), ENT_QUOTES, $this->CharSet);
	}
	
	/**
	 * Get the MIME type for a file extension.
	 * @param string $ext File extension
	 * @access public
	 * @return string MIME type of file.
	 * @static
	 */
	public static function _mime_types($ext = '')
	{
		$mimes = array(
			'xl' => 'application/excel',
			'js' => 'application/javascript',
			'hqx' => 'application/mac-binhex40',
			'cpt' => 'application/mac-compactpro',
			'bin' => 'application/macbinary',
			'doc' => 'application/msword',
			'word' => 'application/msword',
			'class' => 'application/octet-stream',
			'dll' => 'application/octet-stream',
			'dms' => 'application/octet-stream',
			'exe' => 'application/octet-stream',
			'lha' => 'application/octet-stream',
			'lzh' => 'application/octet-stream',
			'psd' => 'application/octet-stream',
			'sea' => 'application/octet-stream',
			'so' => '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',
			'php3' => 'application/x-httpd-php',
			'php4' => 'application/x-httpd-php',
			'php' => 'application/x-httpd-php',
			'phtml' => 'application/x-httpd-php',
			'phps' => 'application/x-httpd-php-source',
			'swf' => 'application/x-shockwave-flash',
			'sit' => 'application/x-stuffit',
			'tar' => 'application/x-tar',
			'tgz' => 'application/x-tar',
			'xht' => 'application/xhtml+xml',
			'xhtml' => 'application/xhtml+xml',
			'zip' => 'application/zip',
			'mid' => 'audio/midi',
			'midi' => 'audio/midi',
			'mp2' => 'audio/mpeg',
			'mp3' => 'audio/mpeg',
			'mpga' => 'audio/mpeg',
			'aif' => 'audio/x-aiff',
			'aifc' => 'audio/x-aiff',
			'aiff' => 'audio/x-aiff',
			'ram' => 'audio/x-pn-realaudio',
			'rm' => 'audio/x-pn-realaudio',
			'rpm' => 'audio/x-pn-realaudio-plugin',
			'ra' => 'audio/x-realaudio',
			'wav' => 'audio/x-wav',
			'bmp' => 'image/bmp',
			'gif' => 'image/gif',
			'jpeg' => 'image/jpeg',
			'jpe' => 'image/jpeg',
			'jpg' => 'image/jpeg',
			'png' => 'image/png',
			'tiff' => 'image/tiff',
			'tif' => 'image/tiff',
			'eml' => 'message/rfc822',
			'css' => 'text/css',
			'html' => 'text/html',
			'htm' => 'text/html',
			'shtml' => 'text/html',
			'log' => 'text/plain',
			'text' => 'text/plain',
			'txt' => 'text/plain',
			'rtx' => 'text/richtext',
			'rtf' => 'text/rtf',
			'vcf' => 'text/vcard',
			'vcard' => 'text/vcard',
			'xml' => 'text/xml',
			'xsl' => 'text/xml',
			'mpeg' => 'video/mpeg',
			'mpe' => 'video/mpeg',
			'mpg' => 'video/mpeg',
			'mov' => 'video/quicktime',
			'qt' => 'video/quicktime',
			'rv' => 'video/vnd.rn-realvideo',
			'avi' => 'video/x-msvideo',
			'movie' => 'video/x-sgi-movie'
		);
		if (array_key_exists(strtolower($ext), $mimes)) {
			return $mimes[strtolower($ext)];
		}
		return 'application/octet-stream';
	}
	
	/**
	 * Map a file name to a MIME type.
	 * Defaults to 'application/octet-stream', i.e.. arbitrary binary data.
	 * @param string $filename A file name or full path, does not need to exist as a file
	 * @return string
	 * @static
	 */
	public static function filenameToType($filename)
	{
		// In case the path is a URL, strip any query string before getting extension
		$qpos = strpos($filename, '?');
		if (false !== $qpos) {
			$filename = substr($filename, 0, $qpos);
		}
		$pathinfo = self::mb_pathinfo($filename);
		return self::_mime_types($pathinfo['extension']);
	}
	
	/**
	 * Multi-byte-safe pathinfo replacement.
	 * Drop-in replacement for pathinfo(), but multibyte-safe, cross-platform-safe, old-version-safe.
	 * Works similarly to the one in PHP >= 5.2.0
	 * @link http://www.php.net/manual/en/function.pathinfo.php#107461
	 * @param string $path A filename or path, does not need to exist as a file
	 * @param integer|string $options Either a PATHINFO_* constant,
	 *      or a string name to return only the specified piece, allows 'filename' to work on PHP < 5.2
	 * @return string|array
	 * @static
	 */
	public static function mb_pathinfo($path, $options = null)
	{
		$ret      = array(
			'dirname' => '',
			'basename' => '',
			'extension' => '',
			'filename' => ''
		);
		$pathinfo = array();
		if (preg_match('%^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$%im', $path, $pathinfo)) {
			if (array_key_exists(1, $pathinfo)) {
				$ret['dirname'] = $pathinfo[1];
			}
			if (array_key_exists(2, $pathinfo)) {
				$ret['basename'] = $pathinfo[2];
			}
			if (array_key_exists(5, $pathinfo)) {
				$ret['extension'] = $pathinfo[5];
			}
			if (array_key_exists(3, $pathinfo)) {
				$ret['filename'] = $pathinfo[3];
			}
		}
		switch ($options) {
			case PATHINFO_DIRNAME:
			case 'dirname':
				return $ret['dirname'];
			case PATHINFO_BASENAME:
			case 'basename':
				return $ret['basename'];
			case PATHINFO_EXTENSION:
			case 'extension':
				return $ret['extension'];
			case PATHINFO_FILENAME:
			case 'filename':
				return $ret['filename'];
			default:
				return $ret;
		}
	}
	
	/**
	 * Set or reset instance properties.
	 * You should avoid this function - it's more verbose, less efficient, more error-prone and
	 * harder to debug than setting properties directly.
	 * Usage Example:
	 * `$mail->set('SMTPSecure', 'tls');`
	 *   is the same as:
	 * `$mail->SMTPSecure = 'tls';`
	 * @access public
	 * @param string $name The property name to set
	 * @param mixed $value The value to set the property to
	 * @return boolean
	 * @TODO Should this not be using the __set() magic function?
	 */
	public function set($name, $value = '')
	{
		if (property_exists($this, $name)) {
			$this->$name = $value;
			return true;
		} else {
			$this->setError($this->lang('variable_set') . $name);
			return false;
		}
	}
	
	/**
	 * Strip newlines to prevent header injection.
	 * @access public
	 * @param string $str
	 * @return string
	 */
	public function secureHeader($str)
	{
		return trim(str_replace(array(
			"\r",
			"\n"
		), '', $str));
	}
	
	/**
	 * Normalize line breaks in a string.
	 * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format.
	 * Defaults to CRLF (for message bodies) and preserves consecutive breaks.
	 * @param string $text
	 * @param string $breaktype What kind of line break to use, defaults to CRLF
	 * @return string
	 * @access public
	 * @static
	 */
	public static function normalizeBreaks($text, $breaktype = "\r\n")
	{
		return preg_replace('/(\r\n|\r|\n)/ms', $breaktype, $text);
	}
	
	
	/**
	 * Set the public and private key files and password for S/MIME signing.
	 * @access public
	 * @param string $cert_filename
	 * @param string $key_filename
	 * @param string $key_pass Password for private key
	 * @param string $extracerts_filename Optional path to chain certificate
	 */
	public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '')
	{
		$this->sign_cert_file       = $cert_filename;
		$this->sign_key_file        = $key_filename;
		$this->sign_key_pass        = $key_pass;
		$this->sign_extracerts_file = $extracerts_filename;
	}
	
	/**
	 * Quoted-Printable-encode a DKIM header.
	 * @access public
	 * @param string $txt
	 * @return string
	 */
	public function DKIM_QP($txt)
	{
		$line = '';
		for ($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 a DKIM signature.
	 * @access public
	 * @param string $signHeader
	 * @throws phpmailerException
	 * @return string
	 */
	public function DKIM_Sign($signHeader)
	{
		if (!defined('PKCS7_TEXT')) {
			if ($this->exceptions) {
				throw new phpmailerException($this->lang('extension_missing') . 'openssl');
			}
			return '';
		}
		$privKeyStr = file_get_contents($this->DKIM_private);
		if ($this->DKIM_passphrase != '') {
			$privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
		} else {
			$privKey = $privKeyStr;
		}
		if (openssl_sign($signHeader, $signature, $privKey)) {
			return base64_encode($signature);
		}
		return '';
	}
	
	/**
	 * Generate a DKIM canonicalization header.
	 * @access public
	 * @param string $signHeader Header
	 * @return string
	 */
	public function DKIM_HeaderC($signHeader)
	{
		$signHeader = preg_replace('/\r\n\s+/', ' ', $signHeader);
		$lines      = explode("\r\n", $signHeader);
		foreach ($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
		}
		$signHeader = implode("\r\n", $lines);
		return $signHeader;
	}
	
	/**
	 * Generate a DKIM canonicalization body.
	 * @access public
	 * @param string $body Message Body
	 * @return string
	 */
	public function DKIM_BodyC($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 and body in a new message header.
	 * @access public
	 * @param string $headers_line Header lines
	 * @param string $subject Subject
	 * @param string $body Body
	 * @return string
	 */
	public function DKIM_Add($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";
		$headers              = explode($this->LE, $headers_line);
		$from_header          = '';
		$to_header            = '';
		$current              = '';
		foreach ($headers as $header) {
			if (strpos($header, 'From:') === 0) {
				$from_header = $header;
				$current     = 'from_header';
			} elseif (strpos($header, 'To:') === 0) {
				$to_header = $header;
				$current   = 'to_header';
			} else {
				if (!empty($$current) && strpos($header, ' =?') === 0) {
					$$current .= $header;
				} else {
					$current = '';
				}
			}
		}
		$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
		if ('' == $this->DKIM_identity) {
			$ident = '';
		} else {
			$ident = ' 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 $dkimhdrs . $signed . "\r\n";
	}
	
	/**
	 * Detect if a string contains a line longer than the maximum line length allowed.
	 * @param string $str
	 * @return boolean
	 * @static
	 */
	public static function hasLineLongerThanMax($str)
	{
		//+2 to include CRLF line break for a 1000 total
		return (boolean) preg_match('/^(.{' . (self::MAX_LINE_LENGTH + 2) . ',})/m', $str);
	}
	
	/**
	 * Allows for public read access to 'to' property.
	 * @access public
	 * @return array
	 */
	public function getToAddresses()
	{
		return $this->to;
	}
	
	/**
	 * Allows for public read access to 'cc' property.
	 * @access public
	 * @return array
	 */
	public function getCcAddresses()
	{
		return $this->cc;
	}
	
	/**
	 * Allows for public read access to 'bcc' property.
	 * @access public
	 * @return array
	 */
	public function getBccAddresses()
	{
		return $this->bcc;
	}
	
	/**
	 * Allows for public read access to 'ReplyTo' property.
	 * @access public
	 * @return array
	 */
	public function getReplyToAddresses()
	{
		return $this->ReplyTo;
	}
	
	/**
	 * Allows for public read access to 'all_recipients' property.
	 * @access public
	 * @return array
	 */
	public function getAllRecipientAddresses()
	{
		return $this->all_recipients;
	}
	
	/**
	 * Perform a callback.
	 * @param boolean $isSent
	 * @param array $to
	 * @param array $cc
	 * @param array $bcc
	 * @param string $subject
	 * @param string $body
	 * @param string $from
	 */
	protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from)
	{
		if (!empty($this->action_function) && is_callable($this->action_function)) {
			$params = array(
				$isSent,
				$to,
				$cc,
				$bcc,
				$subject,
				$body,
				$from
			);
			call_user_func_array($this->action_function, $params);
		}
	}
}

/**
 * PHPMailer exception handler
 * @package PHPMailer
 */
class phpmailerException extends Exception
{
	/**
	 * Prettify error message output
	 * @return string
	 */
	public function errorMessage()
	{
		$errorMsg = '<strong>' . $this->getMessage() . "</strong><br />\n";
		return $errorMsg;
	}
}