diff --git a/src/BeSimple/SoapCommon/MimeFilter.php b/src/BeSimple/SoapCommon/MimeFilter.php
deleted file mode 100644
index 068deb7..0000000
--- a/src/BeSimple/SoapCommon/MimeFilter.php
+++ /dev/null
@@ -1,138 +0,0 @@
-<?php
-
-/*
- * This file is part of the BeSimpleSoapClient.
- *
- * (c) Christian Kerl <christian-kerl@web.de>
- * (c) Francis Besset <francis.besset@gmail.com>
- *
- * This source file is subject to the MIT license that is bundled
- * with this source code in the file LICENSE.
- */
-
-namespace BeSimple\SoapCommon;
-
-use BeSimple\SoapCommon\Helper;
-use BeSimple\SoapCommon\Mime\MultiPart as MimeMultiPart;
-use BeSimple\SoapCommon\Mime\Parser as MimeParser;
-use BeSimple\SoapCommon\Mime\Part as MimePart;
-use BeSimple\SoapCommon\SoapRequest;
-use BeSimple\SoapCommon\SoapRequestFilter;
-use BeSimple\SoapCommon\SoapResponse;
-use BeSimple\SoapCommon\SoapResponseFilter;
-
-/**
- * MIME filter.
- *
- * @author Andreas Schamberger <mail@andreass.net>
- */
-class MimeFilter implements SoapRequestFilter, SoapResponseFilter
-{
-    /**
-     * Attachment type.
-     *
-     * @var int Helper::ATTACHMENTS_TYPE_SWA | Helper::ATTACHMENTS_TYPE_MTOM
-     */
-    protected $attachmentType = Helper::ATTACHMENTS_TYPE_SWA;
-
-    /**
-     * Constructor.
-     *
-     * @param int $attachmentType Helper::ATTACHMENTS_TYPE_SWA | Helper::ATTACHMENTS_TYPE_MTOM
-     */
-    public function __construct($attachmentType)
-    {
-        $this->attachmentType = $attachmentType;
-    }
-
-    /**
-     * Reset all properties to default values.
-     */
-    public function resetFilter()
-    {
-        $this->attachmentType = Helper::ATTACHMENTS_TYPE_SWA;
-    }
-
-    /**
-     * Modify the given request XML.
-     *
-     * @param \BeSimple\SoapCommon\SoapRequest $request SOAP request
-     *
-     * @return void
-     */
-    public function filterRequest(SoapRequest $request)
-    {
-        // get attachments from request object
-        $attachmentsToSend = $request->getAttachments();
-
-        // build mime message if we have attachments
-        if (count($attachmentsToSend) > 0) {
-            $multipart = new MimeMultiPart();
-            $soapPart = new MimePart($request->getContent(), 'text/xml', 'utf-8', MimePart::ENCODING_EIGHT_BIT);
-            $soapVersion = $request->getVersion();
-            // change content type headers for MTOM with SOAP 1.1
-            if ($soapVersion == SOAP_1_1 && $this->attachmentType & Helper::ATTACHMENTS_TYPE_MTOM) {
-                $multipart->setHeader('Content-Type', 'type', 'application/xop+xml');
-                $multipart->setHeader('Content-Type', 'start-info', 'text/xml');
-                $soapPart->setHeader('Content-Type', 'application/xop+xml');
-                $soapPart->setHeader('Content-Type', 'type', 'text/xml');
-            }
-            // change content type headers for SOAP 1.2
-            elseif ($soapVersion == SOAP_1_2) {
-                $multipart->setHeader('Content-Type', 'type', 'application/soap+xml');
-                $soapPart->setHeader('Content-Type', 'application/soap+xml');
-            }
-            $multipart->addPart($soapPart, true);
-            foreach ($attachmentsToSend as $cid => $attachment) {
-                $multipart->addPart($attachment, false);
-            }
-            $request->setContent($multipart->getMimeMessage());
-
-            // TODO
-            $headers = $multipart->getHeadersForHttp();
-            list($name, $contentType) = explode(': ', $headers[0]);
-
-            $request->setContentType($contentType);
-        }
-    }
-
-    /**
-     * Modify the given response XML.
-     *
-     * @param \BeSimple\SoapCommon\SoapResponse $response SOAP response
-     *
-     * @return void
-     */
-    public function filterResponse(SoapResponse $response)
-    {
-        // array to store attachments
-        $attachmentsRecieved = array();
-
-        // check content type if it is a multipart mime message
-        $responseContentType = $response->getContentType();
-        if (false !== stripos($responseContentType, 'multipart/related')) {
-            // parse mime message
-            $headers = array(
-                'Content-Type' => trim($responseContentType),
-            );
-            $multipart = MimeParser::parseMimeMessage($response->getContent(), $headers);
-            // get soap payload and update SoapResponse object
-            $soapPart = $multipart->getPart();
-            // convert href -> myhref for external references as PHP throws exception in this case
-            // http://svn.php.net/viewvc/php/php-src/branches/PHP_5_4/ext/soap/php_encoding.c?view=markup#l3436
-            $content = preg_replace('/href=(?!#)/', 'myhref=', $soapPart->getContent());
-            $response->setContent($content);
-            $response->setContentType($soapPart->getHeader('Content-Type'));
-            // store attachments
-            $attachments = $multipart->getParts(false);
-            foreach ($attachments as $cid => $attachment) {
-                $attachmentsRecieved[$cid] = $attachment;
-            }
-        }
-
-        // add attachments to response object
-        if (count($attachmentsRecieved) > 0) {
-            $response->setAttachments($attachmentsRecieved);
-        }
-    }
-}
\ No newline at end of file