Tibor Paulsch

Adds a button to the TinyMCE editor that puts a selected email address into a shortcode [email] and turns it into a mailto-link, which uses WordPress’ native antispambot() function to encode the emailadress so harvesters can’t get it. 
This is my very first public plugin, so please be gentle with your comments 😉
Find it on <a href="https://github.com/tiborp/email-shortcode-button" title="Plugin code on GitHub" rel="nofollow ugc">GitHub</a>

Anti SpamBot Email Button

Adds a shortcode button to the WordPress TinyMCE editor for easy anti spambot email links.

zingming

This email cloaking method:
<ul>
<li>is accessible for people browsing with screen readers (e.g., blind people); </li>
<li>degrades gracefully for browsers without JavaScript; </li>
<li>works just like a normal, clickable email address for browsers with JavaScript enabled; and</li>
<li>requires no shortcodes.</li>
</ul>
Email addresses in the form <code>email AT address DOT com</code> are converted to a clickable version, <a href="mailto:email@address.com" rel="nofollow ugc">email@address.com</a>, if JavaScript is enabled. If JavaScript is not enabled (such as for screen readers), then the email address in the form <code>email AT address DOT com</code> is still readable to humans.

HumansNotBots – Easy, Accessible Email Cloaker

"email AT address DOT com" (without quotes) is converted to a clickable version of email@address.com if JavaScript is enabled.

Anti SpamBot Email Button vs HumansNotBots – Easy, Accessible Email Cloaker