This website allows you to convert email addresses into an encoded form suitable for inclusion on a web site. Simply add email.js to your site’s top-level javascript folder, remember to call the file email.js

Next you need to call the script in the head of your page with this line of code…

<script src="/scripts/email.js"></script>

Then encode your email address with this automatic encoder and use the encoded link code rather than your usual mailto: link.
-pete