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.

pixeline

This plugin provides an unobtrusive yet efficient protection against email harvesters / spambots. Here is a <a href="https://pixeline.be/blog/email-protector-demo-4258.html" rel="nofollow ugc">demo</a>.
Post/page authors may write email addresses in their article in the usual format (“john@doe.com”) without exposing them to spam email harvesters. The plugin takes care of the obfuscation, implementing a graceful degradation technique focusing on usability so as to protect your email addresses from harvesters while keeping them usable to your human visitors.
The plugin replaces any email address found in posts, pages, comments and excerpts, and replace them by a bit of html markup that should deceive most email harvesters: <code>john(replace the parenthesis by @)doe.com</code>. 
If javascript is available, it will display a clickable link and display the original email to the human user. Maximum usability, maximum protection.
Please <a href="https://wordpress.org/extend/plugins/pixelines-email-protector/" rel="ugc">rate the plugin</a> if you like it.
<h3>Usage</h3>
Write your email addresses inside your posts and pages as usual. When the plugin is activated, it will replace them by a human-readable html string that explains how to deduce the email address, and if javascript is available (99.9% of the time), the original email address will be displayed as a clickable mailto: link. For example: 
 Hello john@doe.com. How are you today? 
will become 
 John( replace these parenthesis by @ )doe.com.
Additionally, you can specify what the mailto: link should look like by sticking a parenthesis inside of which you put the visible link text, like this:
<pre><code>Hello john@doe.com(John Doe). How are you today?
</code></pre>
will become 
 John( replace these parenthesis by @ )doe.com.
<h4>inside a theme</h4>
If you need to protect emails inside your Theme’s files (like the footer.php for example), you can use the function safe_email() like this:
<pre><code> echo safe_email('you@domain.com'); <h3>Contribute</h3>
</code></pre>
Github repo: https://github.com/pixeline/pixeline-email-protector

Pixeline's Email Protector

Write email addresses without worrying about spambots and email harvesters.

Anti SpamBot Email Button vs Pixeline's Email Protector