Enkoder for Leopard

The always handy e-mail obfuscation utility for Mac OS X is now a bona-fide Leopard-friendly (and free) application. Get it here.

For the huddled Mac-less (or older OS X cats), you can use a web-based version.

If you do any kind of web design or development and you like keeping your clients spam-free, this app will make your life much easier.