Friday, August 5th, 2005:
The following features are not currently implemented but I want them included in future releases.

As normal, these will be incorporated into the new development branch until tested and are in no particular order.

IMAP scanning support

Header parser
Parse the header for known signatures of exploits, etc...

white-list support
Allow specific addresses to bypass specified screening.

and yes,

no iptables support
Allow connections directly, parsing connection information from input.