buntegiraffe

Hide Email Address allows you to make email addresses on your site invisible to web spiders and crawlers. 
It also makes it still possible to easily copy and paste email addresses.
Please feel free to post your questions in the support threads of this plugin, we will be glad to help you with any issues.
PRO Version: 
Automatically protects all email addresses on your site, for only 4.95 eur with Hide Email Address PRO (http://bunte-giraffe.de “http://bunte-giraffe.de”).
<blockquote>
<h4>Main features</h4>
<ul>
<li>Hide email addresses from bots</li>
<li>Hide single-line sensitive content from bots</li>
<li>Protected content is generated as image </li>
<li>Protected content is turned into text on click (for real visitors to copy)</li>
<li>Protected content uses the styles of your posts/pages/widgets </li>
<li>Automaticaly protects all emails on your site (PRO version)</li>
<li>Regular updates</li>
<li>Great support</li>
</ul>
</blockquote>

Hide Email Address

Looks good so far

Protect email address from being collected by web crawlers.

Ralf Weber

No more SPAM by spiders scanning you site for email addresses. With CryptX you can hide all your email addresses, with and without a mailto-link, by converting them using javascript or UNICODE.
CryptX protects your email addresses from spam bots while keeping them readable and functional for your visitors. The plugin automatically detects email addresses in your content and encrypts them using various methods including JavaScript encryption, Unicode conversion, and image replacement.
Key Features:
<ul>
<li>Automatic Email Detection – Finds and encrypts email addresses in posts, pages, comments, and widgets</li>
<li>Multiple Encryption Methods – JavaScript, Unicode, image replacement, and custom text options</li>
<li>Widget Support – Works with text widgets and other widget content</li>
<li>RSS Feed Control – Option to disable encryption in RSS feeds</li>
<li>Whitelist Support – Exclude specific domains from encryption</li>
<li>Per-Post Control – Enable/disable encryption on individual posts and pages</li>
<li>Shortcode Support – Use <code>[cryptx]email@example.com[/cryptx]</code> for manual encryption</li>
<li>Template Functions – Developer-friendly functions for theme integration</li>
</ul>
<a href="http://weber-nrw.de/wordpress/cryptx/" title="Plugin Homepage" rel="nofollow ugc">Plugin Homepage</a>

CryptX

No more SPAM by spiders scanning you site for email addresses!

Hide Email Address vs CryptX