How can we update the template for Mail Action in Form Container component?

Hi,

Email is configured vai Adobe CQ Form Mail Servlet service. and there is no template is used for this. The email content is hard coded in the code.

e.g.

SimpleEmail simpleEmail;
        StringBuilder builder = new StringBuilder();
        builder.append(request.getScheme());
        builder.append("://");
        builder.append(request.getServerName());
        if (request.getServerPort() >= 0 && ((
          request.getScheme().equals("https") && request.getServerPort() != 443) || (request
          .getScheme().equals("http") && request.getServerPort() != 80))) {
          builder.append(':');
          builder.append(request.getServerPort());
        } 
        builder.append(request.getRequestURI());
        StringBuilder buffer = new StringBuilder();
        String text = resBundle.getString("You've received a new form based mail from {0}.");
        text = text.replace("{0}", builder.toString());
        buffer.append(text);
        buffer.append("\n\n");
        buffer.append(resBundle.getString("Values"));
        buffer.append(":\n\n");
        List<String> contentNamesList = new ArrayList<>();
        Iterator<String> names = FormsHelper.getContentRequestParameterNames(request);
        while (names.hasNext()) {
          String name = names.next();
          contentNamesList.add(name);
        } 
        Collections.sort(contentNamesList);
        List<String> namesList = new ArrayList<>();
        Iterable<Resource> formElements = this.formStructureHelperFactory.getFormStructureHelper(formResource).getFormElements(formResource);
        for (Resource field : formElements) {
          FieldDescription[] descs = FieldHelper.getFieldDescriptions(request, field);
          for (FieldDescription desc : descs) {
            contentNamesList.remove(desc.getName());
            if (!desc.isPrivate())
              namesList.add(desc.getName()); 
          } 
        } 

http://localhost:4502/system/console/configMgr/com.day.cq.wcm.foundation.forms.impl.MailServlet~core-components