/system/libraries/Email.php

.htaccess
LICENSE
PHPMailer
    .gitignore
    .scrutinizer.yml
    .travis.yml
    LICENSE
    PHPMailerAutoload.php
    README.md
    VERSION
    changelog.md
    class.phpmailer.php
    class.pop3.php
    class.smtp.php
    composer.json
    docs
        Callback_function_notes.txt
        DomainKeys_notes.txt
        Note_for_SMTP_debugging.txt
        extending.html
        faq.html
        generatedocs.sh
        pop3_article.txt
    examples
        code_generator.phps
        contents.html
        contentsutf8.html
        exceptions.phps
        gmail.phps
        images
            phpmailer.png
            phpmailer_mini.png
        index.html
        mail.phps
        mailing_list.phps
        pop_before_smtp.phps
        scripts
            XRegExp.js
            shAutoloader.js
            shBrushPhp.js
            shCore.js
            shLegacy.js
        send_file_upload.phps
        sendmail.phps
        smtp.phps
        smtp_check.phps
        smtp_no_auth.phps
        ssl_options.phps
        styles
            shCore.css
            shCoreDefault.css
            shCoreDjango.css
            shCoreEclipse.css
            shCoreEmacs.css
            shCoreFadeToGrey.css
            shCoreMDUltra.css
            shCoreMidnight.css
            shCoreRDark.css
            shThemeAppleScript.css
            shThemeDefault.css
            shThemeDjango.css
            shThemeEclipse.css
            shThemeEmacs.css
            shThemeFadeToGrey.css
            shThemeMDUltra.css
            shThemeMidnight.css
            shThemeRDark.css
            shThemeVisualStudio.css
            wrapping.png
    extras
        EasyPeasyICS.php
        README.md
        htmlfilter.php
        ntlm_sasl_client.php
    language
        phpmailer.lang-am.php
        phpmailer.lang-ar.php
        phpmailer.lang-az.php
        phpmailer.lang-be.php
        phpmailer.lang-bg.php
        phpmailer.lang-br.php
        phpmailer.lang-ca.php
        phpmailer.lang-ch.php
        phpmailer.lang-cz.php
        phpmailer.lang-de.php
        phpmailer.lang-dk.php
        phpmailer.lang-el.php
        phpmailer.lang-eo.php
        phpmailer.lang-es.php
        phpmailer.lang-et.php
        phpmailer.lang-fa.php
        phpmailer.lang-fi.php
        phpmailer.lang-fo.php
        phpmailer.lang-fr.php
        phpmailer.lang-gl.php
        phpmailer.lang-he.php
        phpmailer.lang-hr.php
        phpmailer.lang-hu.php
        phpmailer.lang-id.php
        phpmailer.lang-it.php
        phpmailer.lang-ja.php
        phpmailer.lang-ka.php
        phpmailer.lang-ko.php
        phpmailer.lang-lt.php
        phpmailer.lang-lv.php
        phpmailer.lang-ms.php
        phpmailer.lang-nl.php
        phpmailer.lang-no.php
        phpmailer.lang-pl.php
        phpmailer.lang-pt.php
        phpmailer.lang-ro.php
        phpmailer.lang-ru.php
        phpmailer.lang-se.php
        phpmailer.lang-sk.php
        phpmailer.lang-sl.php
        phpmailer.lang-sr.php
        phpmailer.lang-tr.php
        phpmailer.lang-uk.php
        phpmailer.lang-vi.php
        phpmailer.lang-zh.php
        phpmailer.lang-zh_cn.php
    test
        bootstrap.php
        fakepopserver.sh
        fakesendmail.sh
        phpmailerLangTest.php
        phpmailerTest.php
        runfakepopserver.sh
        test_callback.php
        testbootstrap-dist.php
    travis.phpunit.xml.dist
application
    .htaccess
    cache
        .htaccess
        index.html
    config
        autoload.php
        config.php
        constants.php
        database.php
        doctypes.php
        foreign_chars.php
        hooks.php
        index.html
        memcached.php
        migration.php
        mimes.php
        profiler.php
        routes.php
        smileys.php
        user_agents.php
    controllers
        Cronid.php
        Systemid.php
        Welcome.php
        index.html
    core
        index.html
    errors
        error_404.php
        error_db.php
        error_general.php
        error_php.php
        index.html
    helpers
        index.html
    hooks
        index.html
    index.html
    language
        english
            index.html
            system_lang.php
        index.html
        polish
            .gitattributes
            README.md
            calendar_lang.php
            date_lang.php
            db_lang.php
            email_lang.php
            form_validation_lang.php
            ftp_lang.php
            imglib_lang.php
            index.html
            migration_lang.php
            number_lang.php
            pagination_lang.php
            profiler_lang.php
            system_lang.php
            unit_test_lang.php
            upload_lang.php
    libraries
        index.html
    logs
        index.html
    models
        System_model.php
        index.html
    third_party
        index.html
    views
        components.php
        errors
            cli
                error_404.php
                error_db.php
                error_exception.php
                error_general.php
                error_php.php
                index.html
            html
                error_404.php
                error_db.php
                error_exception.php
                error_general.php
                error_php.php
                index.html
            index.html
        foot.php
        head.php
        index.html
        login.php
        user
            changepassword.php
            editemail.php
            getpassword.php
            postpassword.php
            settings.php
        welcome_message.php
        wykop
            access.php
            accesscheck.php
            accessedit.php
            addcomment.php
            addcomment2.php
            addentry.php
            cronsetup.php
            microblog.php
            microblogplus.php
            searchlink.php
            searchlink2.php
            searchmicroblog.php
            searchmicroblog2.php
            show.php
            tagsfrommicroblog.php
            tagsfrommicroblog2.php
            wykop.php
            wykopplusminus.php
            wykopplusminuscomm.php
arial.ttf
captcha
    sys.txt
css
    bootstrap-theme.css
    bootstrap-theme.css.map
    bootstrap-theme.min.css
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    bootstrap.min.css.map
favicon.ico
fonts
    glyphicons-halflings-regular.eot
    glyphicons-halflings-regular.svg
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hrefsystem.png
images
    access.png
    comment.png
    cron.png
    entry.png
    hot.png
    microblog.png
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    tag.png
    top.png
    upcoming.png
index.php
install.php
jquery-latest.min.js
js
    bootstrap.js
    bootstrap.min.js
    npm.js
library
    ajax-loader.gif
    bootstrap.min.js
    crop
        Canvas.php
        Coordinate.php
        Exception.php
        Font
            GDF.php
            PS.php
            TTF.php
        Image.php
        Mapper
            BMP.php
            GD.php
            GD2.php
            GIF.php
            JPEG.php
            PNG.php
            TGA.php
        MapperFactory.php
        Operation
            AddNoise.php
            ApplyConvolution.php
            ApplyFilter.php
            ApplyMask.php
            AsGrayscale.php
            AsNegative.php
            AutoCrop.php
            CopyChannelsPalette.php
            CopyChannelsTrueColor.php
            CorrectGamma.php
            Crop.php
            Flip.php
            GetMask.php
            Merge.php
            Mirror.php
            Resize.php
            ResizeCanvas.php
            Rotate.php
            RoundCorners.php
            Unsharp.php
        OperationFactory.php
        PaletteImage.php
        README
        TrueColorImage.php
        VERSION
        WideImage.php
        gpl.txt
        lgpl.txt
        vendor
            de77
                BMP.php
                TGA.php
    datetime
        css
            bootstrap-datetimepicker.min.css
        js
            bootstrap-datetimepicker.min.js
    index.html
    jquery-autocomplete
        changelog.txt
        demo
            bg.gif
            emails.php
            emails.phps
            images
                Amsterdam Van-Gogh Museum.jpg
                Amsterdam.jpg
                Antwerpen Rubenshaus.jpg
                Antwerpen.jpg
                Appenzell.jpg
                Arnhem Historisches Museum.jpg
                Bled.jpg
                Bled_Die Burg von Bled.jpg
                Bogojina_Die Pfarrkirche.jpg
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                BolognaFontanadelNettuno.jpg
                BolognaPiazzaMaggiore.jpg
                Bolsward Martinikerk.jpg
                Bolsward Stadhuis.jpg
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                BordeauxND.jpg
                BordeauxPlaceB.jpg
                BotanischerGartenZuerich.jpg
                Bouillon.jpg
                Gent Hotel de Ville2.jpg
                Gent.jpg
                GenuaStrand.jpg
                GenuabeiNacht.jpg
                Giessbachfaelle Brienz.jpg
                Giethoorn.jpg
                Gnesen.jpg
                Gornij Grad_KATHEDRALE.jpg
                Gossensass.jpg
                Grad_Burg Grad2.jpg
                GrandDixence.jpg
                GrenoblePanorama.jpg
                Groningen.jpg
                GrottenvonReclere.jpg
                Guebwiller.jpg
                Kamnik_Die Franziskaner Bibliothek.jpg
                Karlsbad Muehlbrunnkolonnade.jpg
                Kazimierz.jpg
                KirchbergAltesRathaus1.jpg
                KlagenfurtDom.jpg
                KleineMeerjungfreu.jpg
                LazienkiparkWarschau.jpg
                LeHavreHafen.jpg
                LeMans.jpg
                Lednice.jpg
                Leeuwarden Fries Museum.jpg
                Leeuwarden.jpg
                Lelystad.jpg
                Lemmer.jpg
                Leper Halles aux draps.jpg
                Leuven Museum fuer Kirchenkunst.jpg
                Leuven.jpg
                Luxemburg.jpg
                LuzernAltstadt.jpg
                LuzernPicassoMuseum.jpg
                Lyon.jpg
                Maastricht Onze Lieve Vrou...jpg
                Maastricht St Servaasbasiliek.jpg
                Maastricht Walmuur.jpg
                Maastricht.jpg
                MagiatalMaggia.jpg
                Mailand3.jpg
                Metlika_Bela Krajina Museum.jpg
                MilanoCastelloSforzesco.jpg
                MilanoDom.jpg
                MilazzoBurg.jpg
                Novo Mesto_Das Museum.jpg
                ObervellachBurgFalkenstein.jpg
                OdenseeAndersen.jpg
                Olimje_Kirche und Apotheke in Olimje.jpg
                Olomouc.jpg
                OlympischesMuseumLausanne.jpg
                OrleansMaisonJeannedArc.jpg
                OrleansParcFloraldelaSource.jpg
                OstiaAntica.jpg
                Ostrow Tumski.jpg
                PoertschachSchlossLeonstain.jpg
                Portoroz.jpg
                Posen.jpg
                Postojna.jpg
                Prag Altstaedter Ring.jpg
                Prag Waldsteinpalais.jpg
                RouenNotreDame.jpg
                Salzbergwerk Bex.jpg
                SalzbergwerkWieliczka.jpg
                SalzburgFestungHohensalzburg.jpg
                SalzburgResidenz.jpg
                WienMuseumsQuartier.jpg
                WienMusikverein.jpg
                WienRiesenrad.jpg
                WienRingstrasse.jpg
            images.php
            index.html
            indicator.gif
            json.html
            localdata.js
            main.css
            search.php
            search.phps
        jquery.autocomplete.css
        jquery.autocomplete.js
        jquery.autocomplete.min.js
        jquery.autocomplete.pack.js
        lib
            jquery.ajaxQueue.js
            jquery.bgiframe.min.js
            jquery.js
            thickbox-compressed.js
            thickbox.css
        todo
    jquery-ui-sliderAccess.js
    jquery-ui-timepicker-addon.css
    jquery-ui-timepicker-addon.js
    jquery-ui.css
    jquery-ui.min.js
    jquery.min.js
    jquery.selection.js
    jscolor
        arrow.gif
        cross.gif
        demo.html
        hs.png
        hv.png
        jscolor.js
    lightbox2
        .editorconfig
        .gitignore
        .jscsrc
        .jshintrc
        CONTRIBUTING.md
        DEPLOY.md
        Gruntfile.js
        LICENSE
        README.md
        ROADMAP.md
        bower.json
        dist
            css
                lightbox.css
                lightbox.min.css
            images
                close.png
                loading.gif
                next.png
                prev.png
            js
                lightbox-plus-jquery.js
                lightbox-plus-jquery.min.js
                lightbox-plus-jquery.min.map
                lightbox.js
                lightbox.min.js
                lightbox.min.map
        examples
            index.html
        package.json
        src
            css
                lightbox.css
            images
                close.png
                loading.gif
                next.png
                prev.png
            js
                lightbox.js
    slimbox
        README.txt
        css
            closelabel.gif
            loading.gif
            nextlabel.gif
            prevlabel.gif
            slimbox2-rtl.css
            slimbox2.css
        example.html
        example.jpg
        extra
            autoactivation.js
            fix-urls.js
            flickr.js
            picasaweb.js
        js
            slimbox2.js
        src
            autoload.js
            slimbox2.js
    style.css
    wykopapi.php
script.js
special.txt
stylesmenu.css
system
    .htaccess
    core
        Benchmark.php
        CodeIgniter.php
        Common.php
        Config.php
        Controller.php
        Exceptions.php
        Hooks.php
        Input.php
        Lang.php
        Loader.php
        Log.php
        Model.php
        Output.php
        Router.php
        Security.php
        URI.php
        Utf8.php
        compat
            hash.php
            index.html
            mbstring.php
            password.php
            standard.php
        index.html
    database
        DB.php
        DB_active_rec.php
        DB_cache.php
        DB_driver.php
        DB_forge.php
        DB_query_builder.php
        DB_result.php
        DB_utility.php
        drivers
            cubrid
                cubrid_driver.php
                cubrid_forge.php
                cubrid_result.php
                cubrid_utility.php
                index.html
            ibase
                ibase_driver.php
                ibase_forge.php
                ibase_result.php
                ibase_utility.php
                index.html
            index.html
            mssql
                index.html
                mssql_driver.php
                mssql_forge.php
                mssql_result.php
                mssql_utility.php
            mysql
                index.html
                mysql_driver.php
                mysql_forge.php
                mysql_result.php
                mysql_utility.php
            mysqli
                index.html
                mysqli_driver.php
                mysqli_forge.php
                mysqli_result.php
                mysqli_utility.php
            oci8
                index.html
                oci8_driver.php
                oci8_forge.php
                oci8_result.php
                oci8_utility.php
            odbc
                index.html
                odbc_driver.php
                odbc_forge.php
                odbc_result.php
                odbc_utility.php
            pdo
                index.html
                pdo_driver.php
                pdo_forge.php
                pdo_result.php
                pdo_utility.php
                subdrivers
                    index.html
                    pdo_4d_driver.php
                    pdo_4d_forge.php
                    pdo_cubrid_driver.php
                    pdo_cubrid_forge.php
                    pdo_dblib_driver.php
                    pdo_dblib_forge.php
                    pdo_firebird_driver.php
                    pdo_firebird_forge.php
                    pdo_ibm_driver.php
                    pdo_ibm_forge.php
                    pdo_informix_driver.php
                    pdo_informix_forge.php
                    pdo_mysql_driver.php
                    pdo_mysql_forge.php
                    pdo_oci_driver.php
                    pdo_oci_forge.php
                    pdo_odbc_driver.php
                    pdo_odbc_forge.php
                    pdo_pgsql_driver.php
                    pdo_pgsql_forge.php
                    pdo_sqlite_driver.php
                    pdo_sqlite_forge.php
                    pdo_sqlsrv_driver.php
                    pdo_sqlsrv_forge.php
            postgre
                index.html
                postgre_driver.php
                postgre_forge.php
                postgre_result.php
                postgre_utility.php
            sqlite
                index.html
                sqlite_driver.php
                sqlite_forge.php
                sqlite_result.php
                sqlite_utility.php
            sqlite3
                index.html
                sqlite3_driver.php
                sqlite3_forge.php
                sqlite3_result.php
                sqlite3_utility.php
            sqlsrv
                index.html
                sqlsrv_driver.php
                sqlsrv_forge.php
                sqlsrv_result.php
                sqlsrv_utility.php
        index.html
    fonts
        index.html
        texb.ttf
    helpers
        array_helper.php
        captcha_helper.php
        cookie_helper.php
        date_helper.php
        directory_helper.php
        download_helper.php
        email_helper.php
        file_helper.php
        form_helper.php
        html_helper.php
        index.html
        inflector_helper.php
        language_helper.php
        number_helper.php
        path_helper.php
        security_helper.php
        smiley_helper.php
        string_helper.php
        text_helper.php
        typography_helper.php
        url_helper.php
        xml_helper.php
    index.html
    language
        english
            calendar_lang.php
            date_lang.php
            db_lang.php
            email_lang.php
            form_validation_lang.php
            ftp_lang.php
            imglib_lang.php
            index.html
            migration_lang.php
            number_lang.php
            pagination_lang.php
            profiler_lang.php
            unit_test_lang.php
            upload_lang.php
        index.html
    libraries
        Cache
            Cache.php
            drivers
                Cache_apc.php
                Cache_dummy.php
                Cache_file.php
                Cache_memcached.php
                Cache_redis.php
                Cache_wincache.php
                index.html
            index.html
        Calendar.php
        Cart.php
        Driver.php
        Email.php
        Encrypt.php
        Encryption.php
        Form_validation.php
        Ftp.php
        Image_lib.php
        Javascript
            Jquery.php
            index.html
        Javascript.php
        Log.php
        Migration.php
        Pagination.php
        Parser.php
        Profiler.php
        Session
            Session.php
            SessionHandlerInterface.php
            Session_driver.php
            drivers
                Session_database_driver.php
                Session_files_driver.php
                Session_memcached_driver.php
                Session_redis_driver.php
                index.html
            index.html
        Session.php
        Sha1.php
        Table.php
        Trackback.php
        Typography.php
        Unit_test.php
        Upload.php
        User_agent.php
        Xmlrpc.php
        Xmlrpcs.php
        Zip.php
        index.html
tmp
    sys.txt
uploads
    sys.txt
wykopapi.png
<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2016, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package	CodeIgniter
 * @author	EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
 * @copyright	Copyright (c) 2014 - 2016, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	https://codeigniter.com
 * @since	Version 1.0.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * CodeIgniter Email Class
 *
 * Permits email to be sent using Mail, Sendmail, or SMTP.
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	Libraries
 * @author		EllisLab Dev Team
 * @link		https://codeigniter.com/user_guide/libraries/email.html
 */
class CI_Email {

	/**
	 * Used as the User-Agent and X-Mailer headers' value.
	 *
	 * @var	string
	 */
	public $useragent	= 'CodeIgniter';

	/**
	 * Path to the Sendmail binary.
	 *
	 * @var	string
	 */
	public $mailpath	= '/usr/sbin/sendmail';	// Sendmail path

	/**
	 * Which method to use for sending e-mails.
	 *
	 * @var	string	'mail', 'sendmail' or 'smtp'
	 */
	public $protocol	= 'mail';		// mail/sendmail/smtp

	/**
	 * STMP Server host
	 *
	 * @var	string
	 */
	public $smtp_host	= '';

	/**
	 * SMTP Username
	 *
	 * @var	string
	 */
	public $smtp_user	= '';

	/**
	 * SMTP Password
	 *
	 * @var	string
	 */
	public $smtp_pass	= '';

	/**
	 * SMTP Server port
	 *
	 * @var	int
	 */
	public $smtp_port	= 25;

	/**
	 * SMTP connection timeout in seconds
	 *
	 * @var	int
	 */
	public $smtp_timeout	= 5;

	/**
	 * SMTP persistent connection
	 *
	 * @var	bool
	 */
	public $smtp_keepalive	= FALSE;

	/**
	 * SMTP Encryption
	 *
	 * @var	string	empty, 'tls' or 'ssl'
	 */
	public $smtp_crypto	= '';

	/**
	 * Whether to apply word-wrapping to the message body.
	 *
	 * @var	bool
	 */
	public $wordwrap	= TRUE;

	/**
	 * Number of characters to wrap at.
	 *
	 * @see	CI_Email::$wordwrap
	 * @var	int
	 */
	public $wrapchars	= 76;

	/**
	 * Message format.
	 *
	 * @var	string	'text' or 'html'
	 */
	public $mailtype	= 'text';

	/**
	 * Character set (default: utf-8)
	 *
	 * @var	string
	 */
	public $charset		= 'utf-8';

	/**
	 * Multipart message
	 *
	 * @var	string	'mixed' (in the body) or 'related' (separate)
	 */
	public $multipart	= 'mixed';		// "mixed" (in the body) or "related" (separate)

	/**
	 * Alternative message (for HTML messages only)
	 *
	 * @var	string
	 */
	public $alt_message	= '';

	/**
	 * Whether to validate e-mail addresses.
	 *
	 * @var	bool
	 */
	public $validate	= FALSE;

	/**
	 * X-Priority header value.
	 *
	 * @var	int	1-5
	 */
	public $priority	= 3;			// Default priority (1 - 5)

	/**
	 * Newline character sequence.
	 * Use "\r\n" to comply with RFC 822.
	 *
	 * @link	http://www.ietf.org/rfc/rfc822.txt
	 * @var	string	"\r\n" or "\n"
	 */
	public $newline		= "\n";			// Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822)

	/**
	 * CRLF character sequence
	 *
	 * RFC 2045 specifies that for 'quoted-printable' encoding,
	 * "\r\n" must be used. However, it appears that some servers
	 * (even on the receiving end) don't handle it properly and
	 * switching to "\n", while improper, is the only solution
	 * that seems to work for all environments.
	 *
	 * @link	http://www.ietf.org/rfc/rfc822.txt
	 * @var	string
	 */
	public $crlf		= "\n";

	/**
	 * Whether to use Delivery Status Notification.
	 *
	 * @var	bool
	 */
	public $dsn		= FALSE;

	/**
	 * Whether to send multipart alternatives.
	 * Yahoo! doesn't seem to like these.
	 *
	 * @var	bool
	 */
	public $send_multipart	= TRUE;

	/**
	 * Whether to send messages to BCC recipients in batches.
	 *
	 * @var	bool
	 */
	public $bcc_batch_mode	= FALSE;

	/**
	 * BCC Batch max number size.
	 *
	 * @see	CI_Email::$bcc_batch_mode
	 * @var	int
	 */
	public $bcc_batch_size	= 200;

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

	/**
	 * Whether PHP is running in safe mode. Initialized by the class constructor.
	 *
	 * @var	bool
	 */
	protected $_safe_mode		= FALSE;

	/**
	 * Subject header
	 *
	 * @var	string
	 */
	protected $_subject		= '';

	/**
	 * Message body
	 *
	 * @var	string
	 */
	protected $_body		= '';

	/**
	 * Final message body to be sent.
	 *
	 * @var	string
	 */
	protected $_finalbody		= '';

	/**
	 * multipart/alternative boundary
	 *
	 * @var	string
	 */
	protected $_alt_boundary	= '';

	/**
	 * Attachment boundary
	 *
	 * @var	string
	 */
	protected $_atc_boundary	= '';

	/**
	 * Final headers to send
	 *
	 * @var	string
	 */
	protected $_header_str		= '';

	/**
	 * SMTP Connection socket placeholder
	 *
	 * @var	resource
	 */
	protected $_smtp_connect	= '';

	/**
	 * Mail encoding
	 *
	 * @var	string	'8bit' or '7bit'
	 */
	protected $_encoding		= '8bit';

	/**
	 * Whether to perform SMTP authentication
	 *
	 * @var	bool
	 */
	protected $_smtp_auth		= FALSE;

	/**
	 * Whether to send a Reply-To header
	 *
	 * @var	bool
	 */
	protected $_replyto_flag	= FALSE;

	/**
	 * Debug messages
	 *
	 * @see	CI_Email::print_debugger()
	 * @var	string
	 */
	protected $_debug_msg		= array();

	/**
	 * Recipients
	 *
	 * @var	string[]
	 */
	protected $_recipients		= array();

	/**
	 * CC Recipients
	 *
	 * @var	string[]
	 */
	protected $_cc_array		= array();

	/**
	 * BCC Recipients
	 *
	 * @var	string[]
	 */
	protected $_bcc_array		= array();

	/**
	 * Message headers
	 *
	 * @var	string[]
	 */
	protected $_headers		= array();

	/**
	 * Attachment data
	 *
	 * @var	array
	 */
	protected $_attachments		= array();

	/**
	 * Valid $protocol values
	 *
	 * @see	CI_Email::$protocol
	 * @var	string[]
	 */
	protected $_protocols		= array('mail', 'sendmail', 'smtp');

	/**
	 * Base charsets
	 *
	 * Character sets valid for 7-bit encoding,
	 * excluding language suffix.
	 *
	 * @var	string[]
	 */
	protected $_base_charsets	= array('us-ascii', 'iso-2022-');

	/**
	 * Bit depths
	 *
	 * Valid mail encodings
	 *
	 * @see	CI_Email::$_encoding
	 * @var	string[]
	 */
	protected $_bit_depths		= array('7bit', '8bit');

	/**
	 * $priority translations
	 *
	 * Actual values to send with the X-Priority header
	 *
	 * @var	string[]
	 */
	protected $_priorities = array(
		1 => '1 (Highest)',
		2 => '2 (High)',
		3 => '3 (Normal)',
		4 => '4 (Low)',
		5 => '5 (Lowest)'
	);

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

	/**
	 * Constructor - Sets Email Preferences
	 *
	 * The constructor can be passed an array of config values
	 *
	 * @param	array	$config = array()
	 * @return	void
	 */
	public function __construct(array $config = array())
	{
		$this->charset = config_item('charset');

		if (count($config) > 0)
		{
			$this->initialize($config);
		}
		else
		{
			$this->_smtp_auth = ! ($this->smtp_user === '' && $this->smtp_pass === '');
		}

		$this->_safe_mode = ( ! is_php('5.4') && ini_get('safe_mode'));
		$this->charset = strtoupper($this->charset);

		log_message('info', 'Email Class Initialized');
	}

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

	/**
	 * Destructor - Releases Resources
	 *
	 * @return	void
	 */
	public function __destruct()
	{
		if (is_resource($this->_smtp_connect))
		{
			$this->_send_command('quit');
		}
	}

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

	/**
	 * Initialize preferences
	 *
	 * @param	array
	 * @return	CI_Email
	 */
	public function initialize($config = array())
	{
		foreach ($config as $key => $val)
		{
			if (isset($this->$key))
			{
				$method = 'set_'.$key;

				if (method_exists($this, $method))
				{
					$this->$method($val);
				}
				else
				{
					$this->$key = $val;
				}
			}
		}
		$this->clear();

		$this->_smtp_auth = ! ($this->smtp_user === '' && $this->smtp_pass === '');

		return $this;
	}

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

	/**
	 * Initialize the Email Data
	 *
	 * @param	bool
	 * @return	CI_Email
	 */
	public function clear($clear_attachments = FALSE)
	{
		$this->_subject		= '';
		$this->_body		= '';
		$this->_finalbody	= '';
		$this->_header_str	= '';
		$this->_replyto_flag	= FALSE;
		$this->_recipients	= array();
		$this->_cc_array	= array();
		$this->_bcc_array	= array();
		$this->_headers		= array();
		$this->_debug_msg	= array();

		$this->set_header('User-Agent', $this->useragent);
		$this->set_header('Date', $this->_set_date());

		if ($clear_attachments !== FALSE)
		{
			$this->_attachments = array();
		}

		return $this;
	}

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

	/**
	 * Set FROM
	 *
	 * @param	string	$from
	 * @param	string	$name
	 * @param	string	$return_path = NULL	Return-Path
	 * @return	CI_Email
	 */
	public function from($from, $name = '', $return_path = NULL)
	{
		if (preg_match('/\<(.*)\>/', $from, $match))
		{
			$from = $match[1];
		}

		if ($this->validate)
		{
			$this->validate_email($this->_str_to_array($from));
			if ($return_path)
			{
				$this->validate_email($this->_str_to_array($return_path));
			}
		}

		// prepare the display name
		if ($name !== '')
		{
			// only use Q encoding if there are characters that would require it
			if ( ! preg_match('/[\200-\377]/', $name))
			{
				// add slashes for non-printing characters, slashes, and double quotes, and surround it in double quotes
				$name = '"'.addcslashes($name, "\0..\37\177'\"\\").'"';
			}
			else
			{
				$name = $this->_prep_q_encoding($name);
			}
		}

		$this->set_header('From', $name.' <'.$from.'>');

		isset($return_path) OR $return_path = $from;
		$this->set_header('Return-Path', '<'.$return_path.'>');

		return $this;
	}

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

	/**
	 * Set Reply-to
	 *
	 * @param	string
	 * @param	string
	 * @return	CI_Email
	 */
	public function reply_to($replyto, $name = '')
	{
		if (preg_match('/\<(.*)\>/', $replyto, $match))
		{
			$replyto = $match[1];
		}

		if ($this->validate)
		{
			$this->validate_email($this->_str_to_array($replyto));
		}

		if ($name !== '')
		{
			// only use Q encoding if there are characters that would require it
			if ( ! preg_match('/[\200-\377]/', $name))
			{
				// add slashes for non-printing characters, slashes, and double quotes, and surround it in double quotes
				$name = '"'.addcslashes($name, "\0..\37\177'\"\\").'"';
			}
			else
			{
				$name = $this->_prep_q_encoding($name);
			}
		}

		$this->set_header('Reply-To', $name.' <'.$replyto.'>');
		$this->_replyto_flag = TRUE;

		return $this;
	}

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

	/**
	 * Set Recipients
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function to($to)
	{
		$to = $this->_str_to_array($to);
		$to = $this->clean_email($to);

		if ($this->validate)
		{
			$this->validate_email($to);
		}

		if ($this->_get_protocol() !== 'mail')
		{
			$this->set_header('To', implode(', ', $to));
		}

		$this->_recipients = $to;

		return $this;
	}

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

	/**
	 * Set CC
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function cc($cc)
	{
		$cc = $this->clean_email($this->_str_to_array($cc));

		if ($this->validate)
		{
			$this->validate_email($cc);
		}

		$this->set_header('Cc', implode(', ', $cc));

		if ($this->_get_protocol() === 'smtp')
		{
			$this->_cc_array = $cc;
		}

		return $this;
	}

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

	/**
	 * Set BCC
	 *
	 * @param	string
	 * @param	string
	 * @return	CI_Email
	 */
	public function bcc($bcc, $limit = '')
	{
		if ($limit !== '' && is_numeric($limit))
		{
			$this->bcc_batch_mode = TRUE;
			$this->bcc_batch_size = $limit;
		}

		$bcc = $this->clean_email($this->_str_to_array($bcc));

		if ($this->validate)
		{
			$this->validate_email($bcc);
		}

		if ($this->_get_protocol() === 'smtp' OR ($this->bcc_batch_mode && count($bcc) > $this->bcc_batch_size))
		{
			$this->_bcc_array = $bcc;
		}
		else
		{
			$this->set_header('Bcc', implode(', ', $bcc));
		}

		return $this;
	}

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

	/**
	 * Set Email Subject
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function subject($subject)
	{
		$subject = $this->_prep_q_encoding($subject);
		$this->set_header('Subject', $subject);
		return $this;
	}

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

	/**
	 * Set Body
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function message($body)
	{
		$this->_body = rtrim(str_replace("\r", '', $body));

		/* strip slashes only if magic quotes is ON
		   if we do it with magic quotes OFF, it strips real, user-inputted chars.

		   NOTE: In PHP 5.4 get_magic_quotes_gpc() will always return 0 and
			 it will probably not exist in future versions at all.
		*/
		if ( ! is_php('5.4') && get_magic_quotes_gpc())
		{
			$this->_body = stripslashes($this->_body);
		}

		return $this;
	}

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

	/**
	 * Assign file attachments
	 *
	 * @param	string	$file	Can be local path, URL or buffered content
	 * @param	string	$disposition = 'attachment'
	 * @param	string	$newname = NULL
	 * @param	string	$mime = ''
	 * @return	CI_Email
	 */
	public function attach($file, $disposition = '', $newname = NULL, $mime = '')
	{
		if ($mime === '')
		{
			if (strpos($file, '://') === FALSE && ! file_exists($file))
			{
				$this->_set_error_message('lang:email_attachment_missing', $file);
				return FALSE;
			}

			if ( ! $fp = @fopen($file, 'rb'))
			{
				$this->_set_error_message('lang:email_attachment_unreadable', $file);
				return FALSE;
			}

			$file_content = stream_get_contents($fp);
			$mime = $this->_mime_types(pathinfo($file, PATHINFO_EXTENSION));
			fclose($fp);
		}
		else
		{
			$file_content =& $file; // buffered file
		}

		$this->_attachments[] = array(
			'name'		=> array($file, $newname),
			'disposition'	=> empty($disposition) ? 'attachment' : $disposition,  // Can also be 'inline'  Not sure if it matters
			'type'		=> $mime,
			'content'	=> chunk_split(base64_encode($file_content))
		);

		return $this;
	}

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

	/**
	 * Set and return attachment Content-ID
	 *
	 * Useful for attached inline pictures
	 *
	 * @param	string	$filename
	 * @return	string
	 */
	public function attachment_cid($filename)
	{
		if ($this->multipart !== 'related')
		{
			$this->multipart = 'related'; // Thunderbird need this for inline images
		}

		for ($i = 0, $c = count($this->_attachments); $i < $c; $i++)
		{
			if ($this->_attachments[$i]['name'][0] === $filename)
			{
				$this->_attachments[$i]['cid'] = uniqid(basename($this->_attachments[$i]['name'][0]).'@');
				return $this->_attachments[$i]['cid'];
			}
		}

		return FALSE;
	}

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

	/**
	 * Add a Header Item
	 *
	 * @param	string
	 * @param	string
	 * @return	CI_Email
	 */
	public function set_header($header, $value)
	{
		$this->_headers[$header] = str_replace(array("\n", "\r"), '', $value);
		return $this;
	}

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

	/**
	 * Convert a String to an Array
	 *
	 * @param	string
	 * @return	array
	 */
	protected function _str_to_array($email)
	{
		if ( ! is_array($email))
		{
			return (strpos($email, ',') !== FALSE)
				? preg_split('/[\s,]/', $email, -1, PREG_SPLIT_NO_EMPTY)
				: (array) trim($email);
		}

		return $email;
	}

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

	/**
	 * Set Multipart Value
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function set_alt_message($str)
	{
		$this->alt_message = (string) $str;
		return $this;
	}

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

	/**
	 * Set Mailtype
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function set_mailtype($type = 'text')
	{
		$this->mailtype = ($type === 'html') ? 'html' : 'text';
		return $this;
	}

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

	/**
	 * Set Wordwrap
	 *
	 * @param	bool
	 * @return	CI_Email
	 */
	public function set_wordwrap($wordwrap = TRUE)
	{
		$this->wordwrap = (bool) $wordwrap;
		return $this;
	}

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

	/**
	 * Set Protocol
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function set_protocol($protocol = 'mail')
	{
		$this->protocol = in_array($protocol, $this->_protocols, TRUE) ? strtolower($protocol) : 'mail';
		return $this;
	}

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

	/**
	 * Set Priority
	 *
	 * @param	int
	 * @return	CI_Email
	 */
	public function set_priority($n = 3)
	{
		$this->priority = preg_match('/^[1-5]$/', $n) ? (int) $n : 3;
		return $this;
	}

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

	/**
	 * Set Newline Character
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function set_newline($newline = "\n")
	{
		$this->newline = in_array($newline, array("\n", "\r\n", "\r")) ? $newline : "\n";
		return $this;
	}

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

	/**
	 * Set CRLF
	 *
	 * @param	string
	 * @return	CI_Email
	 */
	public function set_crlf($crlf = "\n")
	{
		$this->crlf = ($crlf !== "\n" && $crlf !== "\r\n" && $crlf !== "\r") ? "\n" : $crlf;
		return $this;
	}

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

	/**
	 * Set Message Boundary
	 *
	 * @return	void
	 */
	protected function _set_boundaries()
	{
		$this->_alt_boundary = 'B_ALT_'.uniqid(''); // multipart/alternative
		$this->_atc_boundary = 'B_ATC_'.uniqid(''); // attachment boundary
	}

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

	/**
	 * Get the Message ID
	 *
	 * @return	string
	 */
	protected function _get_message_id()
	{
		$from = str_replace(array('>', '<'), '', $this->_headers['Return-Path']);
		return '<'.uniqid('').strstr($from, '@').'>';
	}

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

	/**
	 * Get Mail Protocol
	 *
	 * @param	bool
	 * @return	mixed
	 */
	protected function _get_protocol($return = TRUE)
	{
		$this->protocol = strtolower($this->protocol);
		in_array($this->protocol, $this->_protocols, TRUE) OR $this->protocol = 'mail';

		if ($return === TRUE)
		{
			return $this->protocol;
		}
	}

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

	/**
	 * Get Mail Encoding
	 *
	 * @param	bool
	 * @return	string
	 */
	protected function _get_encoding($return = TRUE)
	{
		in_array($this->_encoding, $this->_bit_depths) OR $this->_encoding = '8bit';

		foreach ($this->_base_charsets as $charset)
		{
			if (strpos($charset, $this->charset) === 0)
			{
				$this->_encoding = '7bit';
			}
		}

		if ($return === TRUE)
		{
			return $this->_encoding;
		}
	}

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

	/**
	 * Get content type (text/html/attachment)
	 *
	 * @return	string
	 */
	protected function _get_content_type()
	{
		if ($this->mailtype === 'html')
		{
			return (count($this->_attachments) === 0) ? 'html' : 'html-attach';
		}
		elseif	($this->mailtype === 'text' && count($this->_attachments) > 0)
		{
			return 'plain-attach';
		}
		else
		{
			return 'plain';
		}
	}

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

	/**
	 * Set RFC 822 Date
	 *
	 * @return	string
	 */
	protected function _set_date()
	{
		$timezone = date('Z');
		$operator = ($timezone[0] === '-') ? '-' : '+';
		$timezone = abs($timezone);
		$timezone = floor($timezone/3600) * 100 + ($timezone % 3600) / 60;

		return sprintf('%s %s%04d', date('D, j M Y H:i:s'), $operator, $timezone);
	}

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

	/**
	 * Mime message
	 *
	 * @return	string
	 */
	protected function _get_mime_message()
	{
		return 'This is a multi-part message in MIME format.'.$this->newline.'Your email application may not support this format.';
	}

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

	/**
	 * Validate Email Address
	 *
	 * @param	string
	 * @return	bool
	 */
	public function validate_email($email)
	{
		if ( ! is_array($email))
		{
			$this->_set_error_message('lang:email_must_be_array');
			return FALSE;
		}

		foreach ($email as $val)
		{
			if ( ! $this->valid_email($val))
			{
				$this->_set_error_message('lang:email_invalid_address', $val);
				return FALSE;
			}
		}

		return TRUE;
	}

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

	/**
	 * Email Validation
	 *
	 * @param	string
	 * @return	bool
	 */
	public function valid_email($email)
	{
		if (function_exists('idn_to_ascii') && $atpos = strpos($email, '@'))
		{
			$email = substr($email, 0, ++$atpos).idn_to_ascii(substr($email, $atpos));
		}

		return (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
	}

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

	/**
	 * Clean Extended Email Address: Joe Smith <joe@smith.com>
	 *
	 * @param	string
	 * @return	string
	 */
	public function clean_email($email)
	{
		if ( ! is_array($email))
		{
			return preg_match('/\<(.*)\>/', $email, $match) ? $match[1] : $email;
		}

		$clean_email = array();

		foreach ($email as $addy)
		{
			$clean_email[] = preg_match('/\<(.*)\>/', $addy, $match) ? $match[1] : $addy;
		}

		return $clean_email;
	}

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

	/**
	 * Build alternative plain text message
	 *
	 * Provides the raw message for use in plain-text headers of
	 * HTML-formatted emails.
	 * If the user hasn't specified his own alternative message
	 * it creates one by stripping the HTML
	 *
	 * @return	string
	 */
	protected function _get_alt_message()
	{
		if ( ! empty($this->alt_message))
		{
			return ($this->wordwrap)
				? $this->word_wrap($this->alt_message, 76)
				: $this->alt_message;
		}

		$body = preg_match('/\<body.*?\>(.*)\<\/body\>/si', $this->_body, $match) ? $match[1] : $this->_body;
		$body = str_replace("\t", '', preg_replace('#<!--(.*)--\>#', '', trim(strip_tags($body))));

		for ($i = 20; $i >= 3; $i--)
		{
			$body = str_replace(str_repeat("\n", $i), "\n\n", $body);
		}

		// Reduce multiple spaces
		$body = preg_replace('| +|', ' ', $body);

		return ($this->wordwrap)
			? $this->word_wrap($body, 76)
			: $body;
	}

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

	/**
	 * Word Wrap
	 *
	 * @param	string
	 * @param	int	line-length limit
	 * @return	string
	 */
	public function word_wrap($str, $charlim = NULL)
	{
		// Set the character limit, if not already present
		if (empty($charlim))
		{
			$charlim = empty($this->wrapchars) ? 76 : $this->wrapchars;
		}

		// Standardize newlines
		if (strpos($str, "\r") !== FALSE)
		{
			$str = str_replace(array("\r\n", "\r"), "\n", $str);
		}

		// Reduce multiple spaces at end of line
		$str = preg_replace('| +\n|', "\n", $str);

		// If the current word is surrounded by {unwrap} tags we'll
		// strip the entire chunk and replace it with a marker.
		$unwrap = array();
		if (preg_match_all('|\{unwrap\}(.+?)\{/unwrap\}|s', $str, $matches))
		{
			for ($i = 0, $c = count($matches[0]); $i < $c; $i++)
			{
				$unwrap[] = $matches[1][$i];
				$str = str_replace($matches[0][$i], '{{unwrapped'.$i.'}}', $str);
			}
		}

		// Use PHP's native function to do the initial wordwrap.
		// We set the cut flag to FALSE so that any individual words that are
		// too long get left alone. In the next step we'll deal with them.
		$str = wordwrap($str, $charlim, "\n", FALSE);

		// Split the string into individual lines of text and cycle through them
		$output = '';
		foreach (explode("\n", $str) as $line)
		{
			// Is the line within the allowed character count?
			// If so we'll join it to the output and continue
			if (mb_strlen($line) <= $charlim)
			{
				$output .= $line.$this->newline;
				continue;
			}

			$temp = '';
			do
			{
				// If the over-length word is a URL we won't wrap it
				if (preg_match('!\[url.+\]|://|www\.!', $line))
				{
					break;
				}

				// Trim the word down
				$temp .= mb_substr($line, 0, $charlim - 1);
				$line = mb_substr($line, $charlim - 1);
			}
			while (mb_strlen($line) > $charlim);

			// If $temp contains data it means we had to split up an over-length
			// word into smaller chunks so we'll add it back to our current line
			if ($temp !== '')
			{
				$output .= $temp.$this->newline;
			}

			$output .= $line.$this->newline;
		}

		// Put our markers back
		if (count($unwrap) > 0)
		{
			foreach ($unwrap as $key => $val)
			{
				$output = str_replace('{{unwrapped'.$key.'}}', $val, $output);
			}
		}

		return $output;
	}

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

	/**
	 * Build final headers
	 *
	 * @return	string
	 */
	protected function _build_headers()
	{
		$this->set_header('X-Sender', $this->clean_email($this->_headers['From']));
		$this->set_header('X-Mailer', $this->useragent);
		$this->set_header('X-Priority', $this->_priorities[$this->priority]);
		$this->set_header('Message-ID', $this->_get_message_id());
		$this->set_header('Mime-Version', '1.0');
	}

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

	/**
	 * Write Headers as a string
	 *
	 * @return	void
	 */
	protected function _write_headers()
	{
		if ($this->protocol === 'mail')
		{
			if (isset($this->_headers['Subject']))
			{
				$this->_subject = $this->_headers['Subject'];
				unset($this->_headers['Subject']);
			}
		}

		reset($this->_headers);
		$this->_header_str = '';

		foreach ($this->_headers as $key => $val)
		{
			$val = trim($val);

			if ($val !== '')
			{
				$this->_header_str .= $key.': '.$val.$this->newline;
			}
		}

		if ($this->_get_protocol() === 'mail')
		{
			$this->_header_str = rtrim($this->_header_str);
		}
	}

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

	/**
	 * Build Final Body and attachments
	 *
	 * @return	bool
	 */
	protected function _build_message()
	{
		if ($this->wordwrap === TRUE && $this->mailtype !== 'html')
		{
			$this->_body = $this->word_wrap($this->_body);
		}

		$this->_set_boundaries();
		$this->_write_headers();

		$hdr = ($this->_get_protocol() === 'mail') ? $this->newline : '';
		$body = '';

		switch ($this->_get_content_type())
		{
			case 'plain' :

				$hdr .= 'Content-Type: text/plain; charset='.$this->charset.$this->newline
					.'Content-Transfer-Encoding: '.$this->_get_encoding();

				if ($this->_get_protocol() === 'mail')
				{
					$this->_header_str .= $hdr;
					$this->_finalbody = $this->_body;
				}
				else
				{
					$this->_finalbody = $hdr.$this->newline.$this->newline.$this->_body;
				}

				return;

			case 'html' :

				if ($this->send_multipart === FALSE)
				{
					$hdr .= 'Content-Type: text/html; charset='.$this->charset.$this->newline
						.'Content-Transfer-Encoding: quoted-printable';
				}
				else
				{
					$hdr .= 'Content-Type: multipart/alternative; boundary="'.$this->_alt_boundary.'"';

					$body .= $this->_get_mime_message().$this->newline.$this->newline
						.'--'.$this->_alt_boundary.$this->newline

						.'Content-Type: text/plain; charset='.$this->charset.$this->newline
						.'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline.$this->newline
						.$this->_get_alt_message().$this->newline.$this->newline.'--'.$this->_alt_boundary.$this->newline

						.'Content-Type: text/html; charset='.$this->charset.$this->newline
						.'Content-Transfer-Encoding: quoted-printable'.$this->newline.$this->newline;
				}

				$this->_finalbody = $body.$this->_prep_quoted_printable($this->_body).$this->newline.$this->newline;

				if ($this->_get_protocol() === 'mail')
				{
					$this->_header_str .= $hdr;
				}
				else
				{
					$this->_finalbody = $hdr.$this->newline.$this->newline.$this->_finalbody;
				}

				if ($this->send_multipart !== FALSE)
				{
					$this->_finalbody .= '--'.$this->_alt_boundary.'--';
				}

				return;

			case 'plain-attach' :

				$hdr .= 'Content-Type: multipart/'.$this->multipart.'; boundary="'.$this->_atc_boundary.'"';

				if ($this->_get_protocol() === 'mail')
				{
					$this->_header_str .= $hdr;
				}

				$body .= $this->_get_mime_message().$this->newline
					.$this->newline
					.'--'.$this->_atc_boundary.$this->newline
					.'Content-Type: text/plain; charset='.$this->charset.$this->newline
					.'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline
					.$this->newline
					.$this->_body.$this->newline.$this->newline;

			break;
			case 'html-attach' :

				$hdr .= 'Content-Type: multipart/'.$this->multipart.'; boundary="'.$this->_atc_boundary.'"';

				if ($this->_get_protocol() === 'mail')
				{
					$this->_header_str .= $hdr;
				}

				$body .= $this->_get_mime_message().$this->newline.$this->newline
					.'--'.$this->_atc_boundary.$this->newline

					.'Content-Type: multipart/alternative; boundary="'.$this->_alt_boundary.'"'.$this->newline.$this->newline
					.'--'.$this->_alt_boundary.$this->newline

					.'Content-Type: text/plain; charset='.$this->charset.$this->newline
					.'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline.$this->newline
					.$this->_get_alt_message().$this->newline.$this->newline.'--'.$this->_alt_boundary.$this->newline

					.'Content-Type: text/html; charset='.$this->charset.$this->newline
					.'Content-Transfer-Encoding: quoted-printable'.$this->newline.$this->newline

					.$this->_prep_quoted_printable($this->_body).$this->newline.$this->newline
					.'--'.$this->_alt_boundary.'--'.$this->newline.$this->newline;

			break;
		}

		$attachment = array();
		for ($i = 0, $c = count($this->_attachments), $z = 0; $i < $c; $i++)
		{
			$filename = $this->_attachments[$i]['name'][0];
			$basename = ($this->_attachments[$i]['name'][1] === NULL)
				? basename($filename) : $this->_attachments[$i]['name'][1];

			$attachment[$z++] = '--'.$this->_atc_boundary.$this->newline
				.'Content-type: '.$this->_attachments[$i]['type'].'; '
				.'name="'.$basename.'"'.$this->newline
				.'Content-Disposition: '.$this->_attachments[$i]['disposition'].';'.$this->newline
				.'Content-Transfer-Encoding: base64'.$this->newline
				.(empty($this->_attachments[$i]['cid']) ? '' : 'Content-ID: <'.$this->_attachments[$i]['cid'].'>'.$this->newline);

			$attachment[$z++] = $this->_attachments[$i]['content'];
		}

		$body .= implode($this->newline, $attachment).$this->newline.'--'.$this->_atc_boundary.'--';
		$this->_finalbody = ($this->_get_protocol() === 'mail')
			? $body
			: $hdr.$this->newline.$this->newline.$body;

		return TRUE;
	}

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

	/**
	 * Prep Quoted Printable
	 *
	 * Prepares string for Quoted-Printable Content-Transfer-Encoding
	 * Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt
	 *
	 * @param	string
	 * @return	string
	 */
	protected function _prep_quoted_printable($str)
	{
		// ASCII code numbers for "safe" characters that can always be
		// used literally, without encoding, as described in RFC 2049.
		// http://www.ietf.org/rfc/rfc2049.txt
		static $ascii_safe_chars = array(
			// ' (  )   +   ,   -   .   /   :   =   ?
			39, 40, 41, 43, 44, 45, 46, 47, 58, 61, 63,
			// numbers
			48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
			// upper-case letters
			65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
			// lower-case letters
			97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122
		);

		// We are intentionally wrapping so mail servers will encode characters
		// properly and MUAs will behave, so {unwrap} must go!
		$str = str_replace(array('{unwrap}', '{/unwrap}'), '', $str);

		// RFC 2045 specifies CRLF as "\r\n".
		// However, many developers choose to override that and violate
		// the RFC rules due to (apparently) a bug in MS Exchange,
		// which only works with "\n".
		if ($this->crlf === "\r\n")
		{
			if (is_php('5.3'))
			{
				return quoted_printable_encode($str);
			}
			elseif (function_exists('imap_8bit'))
			{
				return imap_8bit($str);
			}
		}

		// Reduce multiple spaces & remove nulls
		$str = preg_replace(array('| +|', '/\x00+/'), array(' ', ''), $str);

		// Standardize newlines
		if (strpos($str, "\r") !== FALSE)
		{
			$str = str_replace(array("\r\n", "\r"), "\n", $str);
		}

		$escape = '=';
		$output = '';

		foreach (explode("\n", $str) as $line)
		{
			$length = strlen($line);
			$temp = '';

			// Loop through each character in the line to add soft-wrap
			// characters at the end of a line " =\r\n" and add the newly
			// processed line(s) to the output (see comment on $crlf class property)
			for ($i = 0; $i < $length; $i++)
			{
				// Grab the next character
				$char = $line[$i];
				$ascii = ord($char);

				// Convert spaces and tabs but only if it's the end of the line
				if ($ascii === 32 OR $ascii === 9)
				{
					if ($i === ($length - 1))
					{
						$char = $escape.sprintf('%02s', dechex($ascii));
					}
				}
				// DO NOT move this below the $ascii_safe_chars line!
				//
				// = (equals) signs are allowed by RFC2049, but must be encoded
				// as they are the encoding delimiter!
				elseif ($ascii === 61)
				{
					$char = $escape.strtoupper(sprintf('%02s', dechex($ascii)));  // =3D
				}
				elseif ( ! in_array($ascii, $ascii_safe_chars, TRUE))
				{
					$char = $escape.strtoupper(sprintf('%02s', dechex($ascii)));
				}

				// If we're at the character limit, add the line to the output,
				// reset our temp variable, and keep on chuggin'
				if ((strlen($temp) + strlen($char)) >= 76)
				{
					$output .= $temp.$escape.$this->crlf;
					$temp = '';
				}

				// Add the character to our temporary line
				$temp .= $char;
			}

			// Add our completed line to the output
			$output .= $temp.$this->crlf;
		}

		// get rid of extra CRLF tacked onto the end
		return substr($output, 0, strlen($this->crlf) * -1);
	}

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

	/**
	 * Prep Q Encoding
	 *
	 * Performs "Q Encoding" on a string for use in email headers.
	 * It's related but not identical to quoted-printable, so it has its
	 * own method.
	 *
	 * @param	string
	 * @return	string
	 */
	protected function _prep_q_encoding($str)
	{
		$str = str_replace(array("\r", "\n"), '', $str);

		if ($this->charset === 'UTF-8')
		{
			// Note: We used to have mb_encode_mimeheader() as the first choice
			//       here, but it turned out to be buggy and unreliable. DO NOT
			//       re-add it! -- Narf
			if (ICONV_ENABLED === TRUE)
			{
				$output = @iconv_mime_encode('', $str,
					array(
						'scheme' => 'Q',
						'line-length' => 76,
						'input-charset' => $this->charset,
						'output-charset' => $this->charset,
						'line-break-chars' => $this->crlf
					)
				);

				// There are reports that iconv_mime_encode() might fail and return FALSE
				if ($output !== FALSE)
				{
					// iconv_mime_encode() will always put a header field name.
					// We've passed it an empty one, but it still prepends our
					// encoded string with ': ', so we need to strip it.
					return substr($output, 2);
				}

				$chars = iconv_strlen($str, 'UTF-8');
			}
			elseif (MB_ENABLED === TRUE)
			{
				$chars = mb_strlen($str, 'UTF-8');
			}
		}

		// We might already have this set for UTF-8
		isset($chars) OR $chars = strlen($str);

		$output = '=?'.$this->charset.'?Q?';
		for ($i = 0, $length = strlen($output); $i < $chars; $i++)
		{
			$chr = ($this->charset === 'UTF-8' && ICONV_ENABLED === TRUE)
				? '='.implode('=', str_split(strtoupper(bin2hex(iconv_substr($str, $i, 1, $this->charset))), 2))
				: '='.strtoupper(bin2hex($str[$i]));

			// RFC 2045 sets a limit of 76 characters per line.
			// We'll append ?= to the end of each line though.
			if ($length + ($l = strlen($chr)) > 74)
			{
				$output .= '?='.$this->crlf // EOL
					.' =?'.$this->charset.'?Q?'.$chr; // New line
				$length = 6 + strlen($this->charset) + $l; // Reset the length for the new line
			}
			else
			{
				$output .= $chr;
				$length += $l;
			}
		}

		// End the header
		return $output.'?=';
	}

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

	/**
	 * Send Email
	 *
	 * @param	bool	$auto_clear = TRUE
	 * @return	bool
	 */
	public function send($auto_clear = TRUE)
	{
		if ( ! isset($this->_headers['From']))
		{
			$this->_set_error_message('lang:email_no_from');
			return FALSE;
		}

		if ($this->_replyto_flag === FALSE)
		{
			$this->reply_to($this->_headers['From']);
		}

		if ( ! isset($this->_recipients) && ! isset($this->_headers['To'])
			&& ! isset($this->_bcc_array) && ! isset($this->_headers['Bcc'])
			&& ! isset($this->_headers['Cc']))
		{
			$this->_set_error_message('lang:email_no_recipients');
			return FALSE;
		}

		$this->_build_headers();

		if ($this->bcc_batch_mode && count($this->_bcc_array) > $this->bcc_batch_size)
		{
			$result = $this->batch_bcc_send();

			if ($result && $auto_clear)
			{
				$this->clear();
			}

			return $result;
		}

		if ($this->_build_message() === FALSE)
		{
			return FALSE;
		}

		$result = $this->_spool_email();

		if ($result && $auto_clear)
		{
			$this->clear();
		}

		return $result;
	}

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

	/**
	 * Batch Bcc Send. Sends groups of BCCs in batches
	 *
	 * @return	void
	 */
	public function batch_bcc_send()
	{
		$float = $this->bcc_batch_size - 1;
		$set = '';
		$chunk = array();

		for ($i = 0, $c = count($this->_bcc_array); $i < $c; $i++)
		{
			if (isset($this->_bcc_array[$i]))
			{
				$set .= ', '.$this->_bcc_array[$i];
			}

			if ($i === $float)
			{
				$chunk[] = substr($set, 1);
				$float += $this->bcc_batch_size;
				$set = '';
			}

			if ($i === $c-1)
			{
				$chunk[] = substr($set, 1);
			}
		}

		for ($i = 0, $c = count($chunk); $i < $c; $i++)
		{
			unset($this->_headers['Bcc']);

			$bcc = $this->clean_email($this->_str_to_array($chunk[$i]));

			if ($this->protocol !== 'smtp')
			{
				$this->set_header('Bcc', implode(', ', $bcc));
			}
			else
			{
				$this->_bcc_array = $bcc;
			}

			if ($this->_build_message() === FALSE)
			{
				return FALSE;
			}

			$this->_spool_email();
		}
	}

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

	/**
	 * Unwrap special elements
	 *
	 * @return	void
	 */
	protected function _unwrap_specials()
	{
		$this->_finalbody = preg_replace_callback('/\{unwrap\}(.*?)\{\/unwrap\}/si', array($this, '_remove_nl_callback'), $this->_finalbody);
	}

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

	/**
	 * Strip line-breaks via callback
	 *
	 * @param	string	$matches
	 * @return	string
	 */
	protected function _remove_nl_callback($matches)
	{
		if (strpos($matches[1], "\r") !== FALSE OR strpos($matches[1], "\n") !== FALSE)
		{
			$matches[1] = str_replace(array("\r\n", "\r", "\n"), '', $matches[1]);
		}

		return $matches[1];
	}

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

	/**
	 * Spool mail to the mail server
	 *
	 * @return	bool
	 */
	protected function _spool_email()
	{
		$this->_unwrap_specials();

		$method = '_send_with_'.$this->_get_protocol();
		if ( ! $this->$method())
		{
			$this->_set_error_message('lang:email_send_failure_'.($this->_get_protocol() === 'mail' ? 'phpmail' : $this->_get_protocol()));
			return FALSE;
		}

		$this->_set_error_message('lang:email_sent', $this->_get_protocol());
		return TRUE;
	}

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

	/**
	 * Send using mail()
	 *
	 * @return	bool
	 */
	protected function _send_with_mail()
	{
		if (is_array($this->_recipients))
		{
			$this->_recipients = implode(', ', $this->_recipients);
		}

		if ($this->_safe_mode === TRUE)
		{
			return mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str);
		}
		else
		{
			// most documentation of sendmail using the "-f" flag lacks a space after it, however
			// we've encountered servers that seem to require it to be in place.
			return mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str, '-f '.$this->clean_email($this->_headers['Return-Path']));
		}
	}

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

	/**
	 * Send using Sendmail
	 *
	 * @return	bool
	 */
	protected function _send_with_sendmail()
	{
		// is popen() enabled?
		if ( ! function_usable('popen')
			OR FALSE === ($fp = @popen(
						$this->mailpath.' -oi -f '.$this->clean_email($this->_headers['From']).' -t'
						, 'w'))
		) // server probably has popen disabled, so nothing we can do to get a verbose error.
		{
			return FALSE;
		}

		fputs($fp, $this->_header_str);
		fputs($fp, $this->_finalbody);

		$status = pclose($fp);

		if ($status !== 0)
		{
			$this->_set_error_message('lang:email_exit_status', $status);
			$this->_set_error_message('lang:email_no_socket');
			return FALSE;
		}

		return TRUE;
	}

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

	/**
	 * Send using SMTP
	 *
	 * @return	bool
	 */
	protected function _send_with_smtp()
	{
		if ($this->smtp_host === '')
		{
			$this->_set_error_message('lang:email_no_hostname');
			return FALSE;
		}

		if ( ! $this->_smtp_connect() OR ! $this->_smtp_authenticate())
		{
			return FALSE;
		}

		if ( ! $this->_send_command('from', $this->clean_email($this->_headers['From'])))
		{
			return FALSE;
		}

		foreach ($this->_recipients as $val)
		{
			if ( ! $this->_send_command('to', $val))
			{
				return FALSE;
			}
		}

		if (count($this->_cc_array) > 0)
		{
			foreach ($this->_cc_array as $val)
			{
				if ($val !== '' && ! $this->_send_command('to', $val))
				{
					return FALSE;
				}
			}
		}

		if (count($this->_bcc_array) > 0)
		{
			foreach ($this->_bcc_array as $val)
			{
				if ($val !== '' && ! $this->_send_command('to', $val))
				{
					return FALSE;
				}
			}
		}

		if ( ! $this->_send_command('data'))
		{
			return FALSE;
		}

		// perform dot transformation on any lines that begin with a dot
		$this->_send_data($this->_header_str.preg_replace('/^\./m', '..$1', $this->_finalbody));

		$this->_send_data('.');

		$reply = $this->_get_smtp_data();

		$this->_set_error_message($reply);

		if (strpos($reply, '250') !== 0)
		{
			$this->_set_error_message('lang:email_smtp_error', $reply);
			return FALSE;
		}

		if ($this->smtp_keepalive)
		{
			$this->_send_command('reset');
		}
		else
		{
			$this->_send_command('quit');
		}

		return TRUE;
	}

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

	/**
	 * SMTP Connect
	 *
	 * @return	string
	 */
	protected function _smtp_connect()
	{
		if (is_resource($this->_smtp_connect))
		{
			return TRUE;
		}

		$ssl = ($this->smtp_crypto === 'ssl') ? 'ssl://' : '';

		$this->_smtp_connect = fsockopen($ssl.$this->smtp_host,
							$this->smtp_port,
							$errno,
							$errstr,
							$this->smtp_timeout);

		if ( ! is_resource($this->_smtp_connect))
		{
			$this->_set_error_message('lang:email_smtp_error', $errno.' '.$errstr);
			return FALSE;
		}

		stream_set_timeout($this->_smtp_connect, $this->smtp_timeout);
		$this->_set_error_message($this->_get_smtp_data());

		if ($this->smtp_crypto === 'tls')
		{
			$this->_send_command('hello');
			$this->_send_command('starttls');

			$crypto = stream_socket_enable_crypto($this->_smtp_connect, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT);

			if ($crypto !== TRUE)
			{
				$this->_set_error_message('lang:email_smtp_error', $this->_get_smtp_data());
				return FALSE;
			}
		}

		return $this->_send_command('hello');
	}

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

	/**
	 * Send SMTP command
	 *
	 * @param	string
	 * @param	string
	 * @return	string
	 */
	protected function _send_command($cmd, $data = '')
	{
		switch ($cmd)
		{
			case 'hello' :

						if ($this->_smtp_auth OR $this->_get_encoding() === '8bit')
						{
							$this->_send_data('EHLO '.$this->_get_hostname());
						}
						else
						{
							$this->_send_data('HELO '.$this->_get_hostname());
						}

						$resp = 250;
			break;
			case 'starttls'	:

						$this->_send_data('STARTTLS');
						$resp = 220;
			break;
			case 'from' :

						$this->_send_data('MAIL FROM:<'.$data.'>');
						$resp = 250;
			break;
			case 'to' :

						if ($this->dsn)
						{
							$this->_send_data('RCPT TO:<'.$data.'> NOTIFY=SUCCESS,DELAY,FAILURE ORCPT=rfc822;'.$data);
						}
						else
						{
							$this->_send_data('RCPT TO:<'.$data.'>');
						}

						$resp = 250;
			break;
			case 'data'	:

						$this->_send_data('DATA');
						$resp = 354;
			break;
			case 'reset':

						$this->_send_data('RSET');
						$resp = 250;
			break;
			case 'quit'	:

						$this->_send_data('QUIT');
						$resp = 221;
			break;
		}

		$reply = $this->_get_smtp_data();

		$this->_debug_msg[] = '<pre>'.$cmd.': '.$reply.'</pre>';

		if ((int) substr($reply, 0, 3) !== $resp)
		{
			$this->_set_error_message('lang:email_smtp_error', $reply);
			return FALSE;
		}

		if ($cmd === 'quit')
		{
			fclose($this->_smtp_connect);
		}

		return TRUE;
	}

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

	/**
	 * SMTP Authenticate
	 *
	 * @return	bool
	 */
	protected function _smtp_authenticate()
	{
		if ( ! $this->_smtp_auth)
		{
			return TRUE;
		}

		if ($this->smtp_user === '' && $this->smtp_pass === '')
		{
			$this->_set_error_message('lang:email_no_smtp_unpw');
			return FALSE;
		}

		$this->_send_data('AUTH LOGIN');

		$reply = $this->_get_smtp_data();

		if (strpos($reply, '503') === 0)	// Already authenticated
		{
			return TRUE;
		}
		elseif (strpos($reply, '334') !== 0)
		{
			$this->_set_error_message('lang:email_failed_smtp_login', $reply);
			return FALSE;
		}

		$this->_send_data(base64_encode($this->smtp_user));

		$reply = $this->_get_smtp_data();

		if (strpos($reply, '334') !== 0)
		{
			$this->_set_error_message('lang:email_smtp_auth_un', $reply);
			return FALSE;
		}

		$this->_send_data(base64_encode($this->smtp_pass));

		$reply = $this->_get_smtp_data();

		if (strpos($reply, '235') !== 0)
		{
			$this->_set_error_message('lang:email_smtp_auth_pw', $reply);
			return FALSE;
		}

		return TRUE;
	}

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

	/**
	 * Send SMTP data
	 *
	 * @param	string	$data
	 * @return	bool
	 */
	protected function _send_data($data)
	{
		$data .= $this->newline;
		for ($written = $timestamp = 0, $length = strlen($data); $written < $length; $written += $result)
		{
			if (($result = fwrite($this->_smtp_connect, substr($data, $written))) === FALSE)
			{
				break;
			}
			// See https://bugs.php.net/bug.php?id=39598 and http://php.net/manual/en/function.fwrite.php#96951
			elseif ($result === 0)
			{
				if ($timestamp === 0)
				{
					$timestamp = time();
				}
				elseif ($timestamp < (time() - $this->smtp_timeout))
				{
					$result = FALSE;
					break;
				}

				usleep(250000);
				continue;
			}
			else
			{
				$timestamp = 0;
			}
		}

		if ($result === FALSE)
		{
			$this->_set_error_message('lang:email_smtp_data_failure', $data);
			return FALSE;
		}

		return TRUE;
	}

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

	/**
	 * Get SMTP data
	 *
	 * @return	string
	 */
	protected function _get_smtp_data()
	{
		$data = '';

		while ($str = fgets($this->_smtp_connect, 512))
		{
			$data .= $str;

			if ($str[3] === ' ')
			{
				break;
			}
		}

		return $data;
	}

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

	/**
	 * Get Hostname
	 *
	 * There are only two legal types of hostname - either a fully
	 * qualified domain name (eg: "mail.example.com") or an IP literal
	 * (eg: "[1.2.3.4]").
	 *
	 * @link	https://tools.ietf.org/html/rfc5321#section-2.3.5
	 * @link	http://cbl.abuseat.org/namingproblems.html
	 * @return	string
	 */
	protected function _get_hostname()
	{
		if (isset($_SERVER['SERVER_NAME']))
		{
			return $_SERVER['SERVER_NAME'];
		}

		return isset($_SERVER['SERVER_ADDR']) ? '['.$_SERVER['SERVER_ADDR'].']' : '[127.0.0.1]';
	}

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

	/**
	 * Get Debug Message
	 *
	 * @param	array	$include	List of raw data chunks to include in the output
	 *					Valid options are: 'headers', 'subject', 'body'
	 * @return	string
	 */
	public function print_debugger($include = array('headers', 'subject', 'body'))
	{
		$msg = '';

		if (count($this->_debug_msg) > 0)
		{
			foreach ($this->_debug_msg as $val)
			{
				$msg .= $val;
			}
		}

		// Determine which parts of our raw data needs to be printed
		$raw_data = '';
		is_array($include) OR $include = array($include);

		if (in_array('headers', $include, TRUE))
		{
			$raw_data = htmlspecialchars($this->_header_str)."\n";
		}

		if (in_array('subject', $include, TRUE))
		{
			$raw_data .= htmlspecialchars($this->_subject)."\n";
		}

		if (in_array('body', $include, TRUE))
		{
			$raw_data .= htmlspecialchars($this->_finalbody);
		}

		return $msg.($raw_data === '' ? '' : '<pre>'.$raw_data.'</pre>');
	}

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

	/**
	 * Set Message
	 *
	 * @param	string	$msg
	 * @param	string	$val = ''
	 * @return	void
	 */
	protected function _set_error_message($msg, $val = '')
	{
		$CI =& get_instance();
		$CI->lang->load('email');

		if (sscanf($msg, 'lang:%s', $line) !== 1 OR FALSE === ($line = $CI->lang->line($line)))
		{
			$this->_debug_msg[] = str_replace('%s', $val, $msg).'<br />';
		}
		else
		{
			$this->_debug_msg[] = str_replace('%s', $val, $line).'<br />';
		}
	}

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

	/**
	 * Mime Types
	 *
	 * @param	string
	 * @return	string
	 */
	protected function _mime_types($ext = '')
	{
		$ext = strtolower($ext);

		$mimes =& get_mimes();

		if (isset($mimes[$ext]))
		{
			return is_array($mimes[$ext])
				? current($mimes[$ext])
				: $mimes[$ext];
		}

		return 'application/x-unknown-content-type';
	}

}




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