function SendEMailZend($to, $subject, $body, $cc=null, $bcc=null, $attachment=null){
    $pconf = new ParametriConfigurazione();
    $from=$pconf->Get('from_email');

    $tr = new Zend_Mail_Transport_Sendmail();
    Zend_Mail::setDefaultTransport($tr);

    $mail = new Zend_Mail('UTF-8');
    $mail->setBodyText($body);
    $mail->setFrom($from, 'Trinity College London');

    if(is_array($to)){
        foreach($to as $to_address){
            $mail->addTo($to);
        }
    }else{
        $mail->addTo($to);
    }

    if(is_array($cc)){
        foreach ($cc as $cc_address){
            $mail->addCc($cc_address);
        }
    }else if(!is_null($cc)){
        $mail->addCc($cc);
    }

    if(is_array($bcc)){
        foreach($bcc as $bcc_address){
            $mail->addBcc($bcc_address);
        }
    }else if(!is_null($bcc)){
        $mail->addBcc($bcc);
    }

    if(!is_null($attachment)){
        $at = new Zend_Mime_Part($attachment['content']);
        $at->type        = $attachment['mime'];
        $at->disposition = Zend_Mime::DISPOSITION_INLINE;
        $at->encoding    = Zend_Mime::ENCODING_BASE64;
        $at->filename    = $attachment['filename'];

        $mail->addAttachment($at);
    }

    $mail->setSubject($subject);
    $mail->send();
}