Open Email

HTML

<script src="https://code.jquery.com/jquery-3.2.1.js"></script>
<button class="send-email">Send Email</button>

JavaScript

$(document).ready(function() {
  $('.send-email').click(function(event) {
    var email = '[email protected]';
    var subject = 'Subject';
    var emailBody = 'Hi, this is the body.';
    var attachment = '';
    document.location = "mailto:" + email + "?subject=" + subject + "&body=" + emailBody +
      "&Attachment=" + attachment;
  });
});