I am sorry, but the problem of "input2" is still appearing - it seems I haven't solved it. Again, when uploading no file the information "Input2:" is send via email - instead of nothing.
I've put: <input id="input-3" name="quick-contact-form-[]" type="file" class="file" multiple data-show-upload="false" data-show-caption="true" data-show-preview="true" multiple />
