Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Secures websites against broad range of attacks.
Monitors network systems and devices (was Apache Server Watcher).
Configure OS X built-in web server to support WebDAV, PHP, and SSL.
dotDefender is a Web application firewall for preventing hacking attacks and achieving PCI compliance.
Highly scalable web delivery platform.
Turn your Mac into a remotely accessible metadata based file server.