// ENVIO DE E-MAIL UTILIZANDO A API DO ELASTICEMAIL

    public function enviaEmail()
    {
        $email = $_POST['email'];
        $assunto = $_POST['assunto'];
        $msg = "";
        $msg .= '<h3>' . $assunto .'</h3>';
        $msg .= '<p><b>Nome:</b> ' . $_POST['nome'] . '<br>';
        $msg .= '<b>Email:</b> ' . $_POST['email'] . '<br>';
        $msg .= '<b>Mensagem:</b> ' . $_POST['mensagem'] . '<br>';
        $msg .= '<b>Data:</b> ' . date('d/m/Y H:s') . '</p><br>';

//        API elasticemail
        $url = 'https://api.elasticemail.com/v2/email/send';
        try{
            $post = array('from' => 'email@hotmail.com',
                'fromName' => 'Orlando Almeida',
                'apikey' => '$apielastic',
                'charset' => 'utf-8',
                'sender' => 'email@hotmail.com',
                'senderName' => 'Orlando Almeida',
                'replyTo' => "$email",
                'subject' => "Contato do site Nome do site - $assunto",
                'to' => "orlando.ealmeida@gmail.com;$email", // array de e-mails
                'bodyHtml' => "$msg",
                'isTransactional' => false);

            $ch = curl_init();
            curl_setopt_array($ch, array(
                CURLOPT_URL => $url,
                CURLOPT_POST => true,
                CURLOPT_POSTFIELDS => $post,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_HEADER => false,
                CURLOPT_SSL_VERIFYPEER => false
            ));

            $result=curl_exec ($ch);
            curl_close ($ch);

            echo $result;
        }
        catch(Exception $ex){
            echo $ex->getMessage();
        }
        $this->session->set_flashdata('email', TRUE);
        redirect('');
    }