Berg Informatik

The plugin searches the content before output and replaces all emails with a tricky javascript spam protection. The visitor will not notice any change, only spam bots can not grab your emails anymore. For your themes, the plugin provides some handy helper functions to protect emails.
<pre><code>BinEmailSpamProtection::cryptMail('mail@example.com') = javascript:DeCryptX('jogpAflti/di')

BinEmailSpamProtection::cryptMailLink('mail@example.com', [optional text]) = <a class="noSpam" href="javascript:DeCryptX('jogpAflti/di')">mail@nospam-example.com</a>

BinEmailSpamProtection::linktext('mail@example.com') = mail@nospam-example.com
</code></pre>
To avoid problems when the plugin is not active, check to see if the class exists before using it:
<pre><code>$protected = (class_exists('BinEmailSpamProtection') ? BinEmailSpamProtection::cryptMail('mail@example.com') : 'mailto:'mail@example.com');
</code></pre>

Email Spam Protection

The Email Spam Protection Plugin is an easy-to-use and configuration-free plug-in to protect email addresses from automatically collecting by spam bot …

Dennis

Protect your BuddyPress Installation from strangers. Only registered users will be allowed to view the installation and all other users will be redirected to the login page. Users attempting to view blog content via RSS are also authenticated via HTTP Auth.
You can exclude the registration, the homepage and blog pages (e.g. posts, archives and non-buddypress pages) from protection. In combination with the plugin ‘Invitation Code Checker’ your installation stays private but the registration is for users with a special password open.
The plugin includes a German and Hebrew (thanks to gstupp) translation.

Private BuddyPress

Protect your BuddyPress Installation from strangers. Only registered users will be allowed to view the installation.

Email Spam Protection vs Private BuddyPress