Error PHP: Error with PHP mail(): Multiple or malformed newlines found

JoniArjona #1 Feb '17

Hola buenas tardes, tenía una Web que funcionaba bien y de repente a la hora de rellenar el formulario y enviarlo me salía el siguiente error.
Error with PHP mail(): Multiple or malformed newlines found in additional_header
Vi por google que era porque había demasiado saltos de Lineas "\n"quité una variable y el formulario se mandaba, ahora tengo otros problema, los correos que envía están en formato HTML y los datos adjuntos que se mandan con el formulario no salen. Os adjunto el código original php.

spoiler

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**

CodeIgniter
*
An open source application development framework for PHP 4.3.2 or newer
*
@package CodeIgniter
@author ExpressionEngine Dev Team
@copyright Copyright (c) 2008 - 2010, EllisLab, Inc.
@license http://codeigniter.com/user_guide/license.html
@link http://codeigniter.com
@since Version 1.0
@filesource
*/

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

/**

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

var $useragent = "CodeIgniter";
var $mailpath = "/usr/sbin/sendmail"; // Sendmail path
var $protocol = "mail"; // mail/sendmail/smtp
var $smtp_host = ""; // SMTP Server. Example: mail.earthlink.net
var $smtp_user = ""; // SMTP Username
var $smtp_pass = ""; // SMTP Password
var $smtp_port = "25"; // SMTP Port
var $smtp_timeout = 5; // SMTP Timeout in seconds
var $wordwrap = TRUE; // TRUE/FALSE Turns word-wrap on/off
var $wrapchars = "76"; // Number of characters to wrap at.
var $mailtype = "text"; // text/html Defines email formatting
var $charset = "utf-8"; // Default char set: iso-8859-1 or us-ascii
var $multipart = "mixed"; // "mixed" (in the body) or "related" (separate)
var $alt_message = ''; // Alternative message for HTML emails
var $validate = FALSE; // TRUE/FALSE. Enables email validation
var $priority = "3"; // Default priority (1 - 5)
var $newline = "n"; // Default newline. "rn" or "n" (Use "rn" to comply with RFC 822)
var $crlf = "n"; // The RFC 2045 compliant CRLF for quoted-printable is "rn". Apparently some servers,
// even on the receiving end think they need to muck with CRLFs, so using "n", while
// distasteful, is the only thing that seems to work for all environments.
var $send_multipart = TRUE; // TRUE/FALSE - Yahoo does not like multipart alternative, so this is an override. Set to FALSE for Yahoo.
var $bcc_batch_mode = FALSE; // TRUE/FALSE Turns on/off Bcc batch feature
var $bcc_batch_size = 200; // If bcc_batch_mode = TRUE, sets max number of Bccs in each batch
var $safe_mode = FALSE;
var $subject = "";
var $body = "";
var $finalbody = "";
var $alt_boundary = "";
var $atc_boundary = "";
var $header_str = "";
var $smtp_connect = "";
var $encoding = "8bit";
var $IP = FALSE;
var $smtp_auth = FALSE;
var $replyto_flag = FALSE;
var $debug_msg = array();
var $recipients = array();
var $cc_array = array();
var $bcc_array = array();
var $headers = array();
var $attach_name = array();
var $attach_type = array();
var $attach_disp = array();
var $protocols = array('mail', 'sendmail', 'smtp');
var $base_charsets = array('us-ascii', 'iso-2022-'); // 7-bit charsets (excluding language suffix)
var $bit_depths = array('7bit', '8bit');
var $priorities = array('1 (Highest)', '2 (High)', '3 (Normal)', '4 (Low)', '5 (Lowest)');

/**
 * Constructor - Sets Email Preferences
 *
 * The constructor can be passed an array of config values
 */
function CI_Email($config = array())
{
	if (count($config) > 0)
	{
		$this->initialize($config);
	}
	else
	{
		$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;
		$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;
	}

	log_message('debug', "Email Class Initialized");
}

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

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

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

	$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;
	$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;
}
  
// --------------------------------------------------------------------

/**
 * Initialize the Email Data
 *
 * @access	public
 * @return	void
 */
function clear($clear_attachments = FALSE)
{
	$this->_subject		= "";
	$this->_body		= "";
	$this->_finalbody	= "";
	$this->_header_str	= "";
	$this->_replyto_flag = FALSE;
	$this->_recipients	= 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->_attach_name = array();
		$this->_attach_type = array();
		$this->_attach_disp = array();
	}
}
  
// --------------------------------------------------------------------

/**
 * Set FROM
 *
 * @access	public
 * @param	string
 * @param	string
 * @return	void
 */
function from($from, $name = '')
{
	if (preg_match( '/<(.*)>/', $from, $match))
	{
		$from = $match['1'];
	}

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

	// 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, "..37177'"\").'"';
		}
		else
		{
			$name = $this->_prep_q_encoding($name, TRUE);
		}
	}

	$this->_set_header('From', $name.' <'.$from.'>');
	$this->_set_header('Return-Path', '<'.$from.'>');
}
  
// --------------------------------------------------------------------

/**
 * Set Reply-to
 *
 * @access	public
 * @param	string
 * @param	string
 * @return	void
 */
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 == '')
	{
		$name = $replyto;
	}

	if (strncmp($name, '"', 1) != 0)
	{
		$name = '"'.$name.'"';
	}

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

/**
 * Set Recipients
 *
 * @access	public
 * @param	string
 * @return	void
 */
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));
	}

	switch ($this->_get_protocol())
	{
		case 'smtp'		: $this->_recipients = $to;
		break;
		case 'sendmail'	: $this->_recipients = implode(", ", $to);
		break;
		case 'mail'		: $this->_recipients = implode(", ", $to);
		break;
	}
}
  
// --------------------------------------------------------------------

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

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

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

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

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

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

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

/**
 * Set Body
 *
 * @access	public
 * @param	string
 * @return	void
 */
function message($body)
{
	$this->_body = stripslashes(rtrim(str_replace("r", "", $body)));
}
 
// --------------------------------------------------------------------

/**
 * Assign file attachments
 *
 * @access	public
 * @param	string
 * @return	void
 */
function attach($filename, $disposition = 'attachment')
{
	$this->_attach_name[] = $filename;
	$this->_attach_type[] = $this->_mime_types(next(explode('.', basename($filename))));
	$this->_attach_disp[] = $disposition; // Can also be 'inline'  Not sure if it matters
}

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

/**
 * Add a Header Item
 *
 * @access	private
 * @param	string
 * @param	string
 * @return	void
 */
function _set_header($header, $value)
{
	$this->_headers[$header] = $value;
}
  
// --------------------------------------------------------------------

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

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

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

/**
 * Set Wordwrap
 *
 * @access	public
 * @param	string
 * @return	void
 */
function set_wordwrap($wordwrap = TRUE)
{
	$this->wordwrap = ($wordwrap === FALSE) ? FALSE : TRUE;
}
  
// --------------------------------------------------------------------

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

/**
 * Set Priority
 *
 * @access	public
 * @param	integer
 * @return	void
 */
function set_priority($n = 3)
{
	if ( ! is_numeric($n))
	{
		$this->priority = 3;
		return;
	}

	if ($n < 1 OR $n > 5)
	{
		$this->priority = 3;
		return;
	}

	$this->priority = $n;
}
  
// --------------------------------------------------------------------

/**
 * Set Newline Character
 *
 * @access	public
 * @param	string
 * @return	void
 */
function set_newline($newline = "n")
{
	if ($newline != "n" AND $newline != "rn" AND $newline != "r")
	{
		$this->newline	= "n";
		return;
	}

	$this->newline	= $newline;
}
  
// --------------------------------------------------------------------

/**
 * Set CRLF
 *
 * @access	public
 * @param	string
 * @return	void
 */
function set_crlf($crlf = "n")
{
	if ($crlf != "n" AND $crlf != "rn" AND $crlf != "r")
	{
		$this->crlf	= "n";
		return;
	}

	$this->crlf	= $crlf;
}
  
// --------------------------------------------------------------------

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

/**
 * Get the Message ID
 *
 * @access	private
 * @return	string
 */
function _get_message_id()
{
	$from = $this->_headers['Return-Path'];
	$from = str_replace(">", "", $from);
	$from = str_replace("<", "", $from);

	return  "<".uniqid('').strstr($from, '@').">";
}
  
// --------------------------------------------------------------------

/**
 * Get Mail Protocol
 *
 * @access	private
 * @param	bool
 * @return	string
 */
function _get_protocol($return = TRUE)
{
	$this->protocol = strtolower($this->protocol);
	$this->protocol = ( ! in_array($this->protocol, $this->_protocols, TRUE)) ? 'mail' : $this->protocol;

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

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

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

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

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

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

/**
 * Set RFC 822 Date
 *
 * @access	private
 * @return	string
 */
function _set_date()
{
	$timezone = date("Z");
	$operator = (strncmp($timezone, '-', 1) == 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
 *
 * @access	private
 * @return	string
 */
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
 *
 * @access	public
 * @param	string
 * @return	bool
 */
function validate_email($email)
{
	if ( ! is_array($email))
	{
		$this->_set_error_message('email_must_be_array');
		return FALSE;
	}

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

	return TRUE;
}
  
// --------------------------------------------------------------------

/**
 * Email Validation
 *
 * @access	public
 * @param	string
 * @return	bool
 */
function valid_email($address)
{
	return ( ! preg_match("/^([a-z0-9+_-]+)(.[a-z0-9+_-]+)*@([a-z0-9-]+.)+[a-z]{2,6}$/ix", $address)) ? FALSE : TRUE;
}
  
// --------------------------------------------------------------------

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

	$clean_email = array();

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

	return $clean_email;
}
  
// --------------------------------------------------------------------

/**
 * Build alternative plain text message
 *
 * This function 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
 *
 * @access	private
 * @return	string
 */
function _get_alt_message()
{
	if ($this->alt_message != "")
	{
		return $this->word_wrap($this->alt_message, '76');
	}

	if (preg_match('/<body.*?>(.*)</body>/si', $this->_body, $match))
	{
		$body = $match['1'];
	}
	else
	{
		$body = $this->_body;
	}

	$body = trim(strip_tags($body));
	$body = preg_replace( '#<!--(.*)-->#', "", $body);
	$body = str_replace("t", "", $body);

	for ($i = 20; $i >= 3; $i--)
	{
		$n = "";

		for ($x = 1; $x <= $i; $x ++)
		{
			 $n .= "n";
		}

		$body = str_replace($n, "nn", $body);
	}

	return $this->word_wrap($body, '76');
}
  
// --------------------------------------------------------------------

/**
 * Word Wrap
 *
 * @access	public
 * @param	string
 * @param	integer
 * @return	string
 */
function word_wrap($str, $charlim = '')
{
	// Se the character limit
	if ($charlim == '')
	{
		$charlim = ($this->wrapchars == "") ? "76" : $this->wrapchars;
	}

	// Reduce multiple spaces
	$str = preg_replace("| +|", " ", $str);

	// Standardize newlines
	if (strpos($str, "r") !== FALSE)
	{
		$str = str_replace(array("rn", "r"), "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; $i < count($matches['0']); $i++)
		{
			$unwrap[] = $matches['1'][$i];
			$str = str_replace($matches['1'][$i], "{{unwrapped".$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 $line)
	{
		// Is the line within the allowed character count?
		// If so we'll join it to the output and continue
		if (strlen($line) <= $charlim)
		{
			$output .= $line.$this->newline;
			continue;
		}

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

			// Trim the word down
			$temp .= substr($line, 0, $charlim-1);
			$line = substr($line, $charlim-1);
		}

		// 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.$line;
		}
		else
		{
			$output .= $line;
		}

		$output .= $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
 *
 * @access	private
 * @param	string
 * @return	string
 */
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 - 1]);
	$this->_set_header('Message-ID', $this->_get_message_id());
	$this->_set_header('Mime-Version', '1.0');
}
  
// --------------------------------------------------------------------

/**
 * Write Headers as a string
 *
 * @access	private
 * @return	void
 */
function _write_headers()
{
	if ($this->protocol == 'mail')
	{
		$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
 *
 * @access	private
 * @return	void
 */
function _build_message()
{
	if ($this->wordwrap === TRUE  AND  $this->mailtype != 'html')
	{
		$this->_body = $this->word_wrap($this->_body);
	}

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

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

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

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

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

				return;
			}

			$hdr .= $this->newline . $this->newline . $this->_body;

			$this->_finalbody = $hdr;
			return;

		break;
		case 'html' :

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

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

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

			$this->_body = $this->_prep_quoted_printable($this->_body);

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

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

				return;
			}

			$hdr .= $this->newline . $this->newline;
			$hdr .= $this->_body . $this->newline . $this->newline;

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

			$this->_finalbody = $hdr;
			return;

		break;
		case 'plain-attach' :

			$hdr .= "Content-Type: multipart/".$this->multipart."; boundary="" . $this->_atc_boundary.""" . $this->newline . $this->newline;
			$hdr .= $this->_get_mime_message() . $this->newline . $this->newline;
			$hdr .= "--" . $this->_atc_boundary . $this->newline;

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

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

				$body  = $this->_body . $this->newline . $this->newline;
			}

			$hdr .= $this->newline . $this->newline;
			$hdr .= $this->_body . $this->newline . $this->newline;

		break;
		case 'html-attach' :

			$hdr .= "Content-Type: multipart/".$this->multipart."; boundary="" . $this->_atc_boundary.""" . $this->newline . $this->newline;
			$hdr .= $this->_get_mime_message() . $this->newline . $this->newline;
			$hdr .= "--" . $this->_atc_boundary . $this->newline;

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

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

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

			$this->_body = $this->_prep_quoted_printable($this->_body);

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

				$body  = $this->_body . $this->newline . $this->newline;
				$body .= "--" . $this->_alt_boundary . "--" . $this->newline . $this->newline;
			}

			$hdr .= $this->newline . $this->newline;
			$hdr .= $this->_body . $this->newline . $this->newline;
			$hdr .= "--" . $this->_alt_boundary . "--" . $this->newline . $this->newline;

		break;
	}

	$attachment = array();

	$z = 0;

	for ($i=0; $i < count($this->_attach_name); $i++)
	{
		$filename = $this->_attach_name[$i];
		$basename = basename($filename);
		$ctype = $this->_attach_type[$i];

		if ( ! file_exists($filename))
		{
			$this->_set_error_message('email_attachment_missing', $filename);
			return FALSE;
		}

		$h  = "--".$this->_atc_boundary.$this->newline;
		$h .= "Content-type: ".$ctype."; ";
		$h .= "name="".$basename.""".$this->newline;
		$h .= "Content-Disposition: ".$this->_attach_disp[$i].";".$this->newline;
		$h .= "Content-Transfer-Encoding: base64".$this->newline;

		$attachment[$z++] = $h;
		$file = filesize($filename) +1;

		if ( ! $fp = fopen($filename, FOPEN_READ))
		{
			$this->_set_error_message('email_attachment_unreadable', $filename);
			return FALSE;
		}

		$attachment[$z++] = chunk_split(base64_encode(fread($fp, $file)));
		fclose($fp);
	}

	if ($this->_get_protocol() == 'mail')
	{
		$this->_finalbody = $body . implode($this->newline, $attachment).$this->newline."--".$this->_atc_boundary."--";

		return;
	}

	$this->_finalbody = $hdr.implode($this->newline, $attachment).$this->newline."--".$this->_atc_boundary."--";

	return;
}
  
// --------------------------------------------------------------------

/**
 * Prep Quoted Printable
 *
 * Prepares string for Quoted-Printable Content-Transfer-Encoding
 * Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt
 *
 * @access	private
 * @param	string
 * @param	integer
 * @return	string
 */
function _prep_quoted_printable($str, $charlim = '')
{
	// Set the character limit
	// Don't allow over 76, as that will make servers and MUAs barf
	// all over quoted-printable data
	if ($charlim == '' OR $charlim > '76')
	{
		$charlim = '76';
	}

	// Reduce multiple spaces
	$str = preg_replace("| +|", " ", $str);

	// kill nulls
	$str = preg_replace('/x00+/', '', $str);

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

	// 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);

	// Break into an array of lines
	$lines = explode("n", $str);

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

	foreach ($lines as $line)
	{
		$length = strlen($line);
		$temp = '';

		// Loop through each character in the line to add soft-wrap
		// characters at the end of a line " =rn" 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
			$char = substr($line, $i, 1);
			$ascii = ord($char);

			// Convert spaces and tabs but only if it's the end of the line
			if ($i == ($length - 1))
			{
				$char = ($ascii == '32' OR $ascii == '9') ? $escape.sprintf('%02s', dechex($ascii)) : $char;
			}

			// encode = signs
			if ($ascii == '61')
			{
				$char = $escape.strtoupper(sprintf('%02s', dechex($ascii)));  // =3D
			}

			// 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)) >= $charlim)
			{
				$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
	$output = substr($output, 0, strlen($this->crlf) * -1);

	return $output;
}

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

/**
 * 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
 *
 * @access	public
 * @param	str
 * @param	bool	// set to TRUE for processing From: headers
 * @return	str
 */
function _prep_q_encoding($str, $from = FALSE)
{
	$str = str_replace(array("r", "n"), array('', ''), $str);

	// Line length must not exceed 76 characters, so we adjust for
	// a space, 7 extra characters =??Q??=, and the charset that we will add to each line
	$limit = 75 - 7 - strlen($this->charset);

	// these special characters must be converted too
	$convert = array('_', '=', '?');

	if ($from === TRUE)
	{
		$convert[] = ',';
		$convert[] = ';';
	}

	$output = '';
	$temp = '';

	for ($i = 0, $length = strlen($str); $i < $length; $i++)
	{
		// Grab the next character
		$char = substr($str, $i, 1);
		$ascii = ord($char);

		// convert ALL non-printable ASCII characters and our specials
		if ($ascii < 32 OR $ascii > 126 OR in_array($char, $convert))
		{
			$char = '='.dechex($ascii);
		}

		// handle regular spaces a bit more compactly than =20
		if ($ascii == 32)
		{
			$char = '_';
		}

		// 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)) >= $limit)
		{
			$output .= $temp.$this->crlf;
			$temp = '';
		}

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

	$str = $output.$temp;

	// wrap each line with the shebang, charset, and transfer encoding
	// the preceding space on successive lines is required for header "folding"
	$str = trim(preg_replace('/^(.*)$/m', ' =?'.$this->charset.'?Q?$1?=', $str));

	return $str;
}

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

/**
 * Send Email
 *
 * @access	public
 * @return	bool
 */
function send()
{
	if ($this->_replyto_flag == FALSE)
	{
		$this->reply_to($this->_headers['From']);
	}

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

	$this->_build_headers();

	if ($this->bcc_batch_mode  AND  count($this->_bcc_array) > 0)
	{
		if (count($this->_bcc_array) > $this->bcc_batch_size)
			return $this->batch_bcc_send();
	}

	$this->_build_message();

	if ( ! $this->_spool_email())
	{
		return FALSE;
	}
	else
	{
		return TRUE;
	}
}
  
// --------------------------------------------------------------------

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

	$set = "";

	$chunk = array();

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

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

		if ($i == count($this->_bcc_array)-1)
		{
			$chunk[] = substr($set, 1);
		}
	}

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

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

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

		$this->_build_message();
		$this->_spool_email();
	}
}
  
// --------------------------------------------------------------------

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

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

	return $matches[1];
}
  
// --------------------------------------------------------------------

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

	switch ($this->_get_protocol())
	{
		case 'mail'	:

				if ( ! $this->_send_with_mail())
				{
					$this->_set_error_message('email_send_failure_phpmail');
					return FALSE;
				}
		break;
		case 'sendmail'	:

				if ( ! $this->_send_with_sendmail())
				{
					$this->_set_error_message('email_send_failure_sendmail');
					return FALSE;
				}
		break;
		case 'smtp'	:

				if ( ! $this->_send_with_smtp())
				{
					$this->_set_error_message('email_send_failure_smtp');
					return FALSE;
				}
		break;

	}

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

/**
 * Send using mail()
 *
 * @access	private
 * @return	bool
 */
function _send_with_mail()
{
	if ($this->_safe_mode == TRUE)
	{
		if ( ! mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str))
		{
			return FALSE;
		}
		else
		{
			return TRUE;
		}
	}
	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. Acabo de eliminar

LINEA 1519 if ( ! mail($this->recipients, $this->subject,$this->finalbody,,$this->header_str,"-f".$this->clean_email($this->_headers['From'])))
{
return FALSE;
}
else
{
return TRUE;
}
}
}

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

/**
 * Send using Sendmail
 *
 * @access	private
 * @return	bool
 */
function _send_with_sendmail()
{
	$fp = @popen($this->mailpath . " -oi -f ".$this->clean_email($this->_headers['From'])." -t", 'w');

	if ($fp === FALSE OR $fp === NULL)
	{
		// 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 (version_compare(PHP_VERSION, '4.2.3') == -1)
	{
		$status = $status >> 8 & 0xFF;
    }

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

	return TRUE;
}
  
// --------------------------------------------------------------------

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

	$this->_smtp_connect();
	$this->_smtp_authenticate();

	$this->_send_command('from', $this->clean_email($this->_headers['From']));

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

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

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

	$this->_send_command('data');

	// 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 (strncmp($reply, '250', 3) != 0)
	{
		$this->_set_error_message('email_smtp_error', $reply);
		return FALSE;
	}

	$this->_send_command('quit');
	return TRUE;
}
  
// --------------------------------------------------------------------

/**
 * SMTP Connect
 *
 * @access	private
 * @param	string
 * @return	string
 */
function _smtp_connect()
{
	$this->_smtp_connect = fsockopen($this->smtp_host,
									$this->smtp_port,
									$errno,
									$errstr,
									$this->smtp_timeout);

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

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

/**
 * Send SMTP command
 *
 * @access	private
 * @param	string
 * @param	string
 * @return	string
 */
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 'from' :

					$this->_send_data('MAIL FROM:<'.$data.'>');

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

					$this->_send_data('RCPT TO:<'.$data.'>');

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

					$this->_send_data('DATA');

					$resp = 354;
		break;
		case 'quit'	:

					$this->_send_data('QUIT');

					$resp = 221;
		break;
	}

	$reply = $this->_get_smtp_data();

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

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

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

	return TRUE;
}
  
// --------------------------------------------------------------------

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

	if ($this->smtp_user == ""  AND  $this->smtp_pass == "")
	{
		$this->_set_error_message('email_no_smtp_unpw');
		return FALSE;
	}

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

	$reply = $this->_get_smtp_data();

	if (strncmp($reply, '334', 3) != 0)
	{
		$this->_set_error_message('email_failed_smtp_login', $reply);
		return FALSE;
	}

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

	$reply = $this->_get_smtp_data();

	if (strncmp($reply, '334', 3) != 0)
	{
		$this->_set_error_message('email_smtp_auth_un', $reply);
		return FALSE;
	}

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

	$reply = $this->_get_smtp_data();

	if (strncmp($reply, '235', 3) != 0)
	{
		$this->_set_error_message('email_smtp_auth_pw', $reply);
		return FALSE;
	}

	return TRUE;
}
  
// --------------------------------------------------------------------

/**
 * Send SMTP data
 *
 * @access	private
 * @return	bool
 */
function _send_data($data)
{
	if ( ! fwrite($this->_smtp_connect, $data . $this->newline))
	{
		$this->_set_error_message('email_smtp_data_failure', $data);
		return FALSE;
	}
	else
	{
		return TRUE;
	}
}
  
// --------------------------------------------------------------------

/**
 * Get SMTP data
 *
 * @access	private
 * @return	string
 */
function _get_smtp_data()
{
	$data = "";

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

		if (substr($str, 3, 1) == " ")
		{
			break;
		}
	}

	return $data;
}
  
// --------------------------------------------------------------------

/**
 * Get Hostname
 *
 * @access	private
 * @return	string
 */
function _get_hostname()
{
	return (isset($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain';
}
  
// --------------------------------------------------------------------

/**
 * Get IP
 *
 * @access	private
 * @return	string
 */
function _get_ip()
{
	if ($this->_IP !== FALSE)
	{
		return $this->_IP;
	}

	$cip = (isset($_SERVER['HTTP_CLIENT_IP']) AND $_SERVER['HTTP_CLIENT_IP'] != "") ? $_SERVER['HTTP_CLIENT_IP'] : FALSE;
	$rip = (isset($_SERVER['REMOTE_ADDR']) AND $_SERVER['REMOTE_ADDR'] != "") ? $_SERVER['REMOTE_ADDR'] : FALSE;
	$fip = (isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND $_SERVER['HTTP_X_FORWARDED_FOR'] != "") ? $_SERVER['HTTP_X_FORWARDED_FOR'] : FALSE;

	if ($cip && $rip) 	$this->_IP = $cip;
	elseif ($rip)		$this->_IP = $rip;
	elseif ($cip)		$this->_IP = $cip;
	elseif ($fip)		$this->_IP = $fip;

	if (strstr($this->_IP, ','))
	{
		$x = explode(',', $this->_IP);
		$this->_IP = end($x);
	}

	if ( ! preg_match( "/^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$/", $this->_IP))
	{
		$this->_IP = '0.0.0.0';
	}

	unset($cip);
	unset($rip);
	unset($fip);

	return $this->_IP;
}
  
// --------------------------------------------------------------------

/**
 * Get Debug Message
 *
 * @access	public
 * @return	string
 */
function print_debugger()
{
	$msg = '';

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

	$msg .= "<pre>".$this->_header_str."n".htmlspecialchars($this->_subject)."n".htmlspecialchars($this->_finalbody).'</pre>';
	return $msg;
}
  
// --------------------------------------------------------------------

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

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

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

	return ( ! isset($mimes[strtolower($ext)])) ? "application/x-unknown-content-type" : $mimes[strtolower($ext)];
}

}
// END CI_Email class

/* End of file Email.php /
/ Location: ./system/libraries/Email.php */

Cosas a tener en cuenta:
No tengo idea de php
La web la creó otro tipo
Creo que el error dado es porque se actualizo la version de php en el hosting.
Actualemnte para que no me salga el error de las multiples cabeceras he eliminado de la linea 1519 (He marcado la linea en el codigo si buscais 1519 la encontrareis) lo siguiente:
$this->_header_str, "-f".

Así el error de las cabeceras se quita pero me manda los mensajes en formato HTML. EJEMPLO:

spoiler

Gracias de antemano.

Error PHP: Error with PHP mail(): Multiple or malformed newlines found

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