public SendRawEmailResult sendEmail(EmailData data, LambdaLogger logger) {
        try {
            final Session session = Session.getDefaultInstance(new Properties());

            // Create a new MimeMessage object.
            final MimeMessage message = new MimeMessage(session);

            // Add subject, from and to lines.
            message.setSubject(data.getSubject(), "UTF-8");
            message.setFrom(new InternetAddress(data.getFrom()));
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(String.join(",", data.getRecipients())));

            // Create a multipart/alternative child container.
            final MimeMultipart msg_body = new MimeMultipart("related");

            // Create a wrapper for the HTML and text parts.
            final MimeBodyPart wrap = new MimeBodyPart();

            // Define the HTML part.
            final MimeBodyPart htmlPart = new MimeBodyPart();
            // Encode the HTML content and set the character encoding.
            logger.log(renderTemplate(data, logger));
            htmlPart.setContent(MimeUtility
                    .encodeText(renderTemplate(data, logger), "UTF-8", "B"), "text/html; charset=UTF-8");
            htmlPart.setHeader("Content-Transfer-Encoding", "base64");

            // Add the text and HTML parts to the child container.
            msg_body.addBodyPart(htmlPart);

            // Add the child container to the wrapper object.
            wrap.setContent(msg_body, "text/html; charset=UTF-8");

            // Create a multipart/mixed parent container.
            final MimeMultipart msg = new MimeMultipart("mixed");

            // Add the parent container to the message.
            message.setContent(msg, "text/html; charset=UTF-8");

            // Add the multipart/alternative part to the message.
            msg.addBodyPart(wrap);

            // Define the attachment
            attachImages(msg_body, "images/common/", "");
            attachImages(msg_body, "images/", "");

            // Send the email.
            final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            message.writeTo(outputStream);
            final RawMessage rawMessage = new RawMessage(ByteBuffer.wrap(outputStream.toByteArray()));
            final SendRawEmailRequest rawEmailRequest = new SendRawEmailRequest(rawMessage);
            logger.log("Email sent!");
            return client.sendRawEmail(rawEmailRequest);
        } catch (Exception e) {
            logger.log(e.getLocalizedMessage());
            return new SendRawEmailResult();
        }
    }