/**
  * Retrieves Message Attachments
  *
  * @param \Zend\Mail\Storage\Message $zendMailMessage
  * @return array
  */
 private function processAttachments($zendMailMessage)
 {
     $attachments = array();
     if ($zendMailMessage->getBody()) {
         $parts = $zendMailMessage->getBody()->getParts();
         foreach ($parts as $part) {
             if ($part->disposition) {
                 $disposition = \Zend\Mime\Decode::splitHeaderField($part->disposition);
                 if ($disposition[0] == \Zend\Mime\Mime::DISPOSITION_ATTACHMENT && isset($disposition['filename'])) {
                     $fileName = $disposition['filename'];
                     $fileContent = $part->getContent();
                     $attachments[] = new Attachment($fileName, base64_decode($fileContent));
                 }
             }
         }
     }
     return $attachments;
 }