What is firewall 400?

Firewall 400 is a spam filtering firewall developed by Barracuda Networks. The company acclaims that the firewall can handle up to ten million emails per day with ten thousand active users. Not only this, the firewall also provides an almost exhaustive spam check that is touted to detect most intrusions.

The device is operated through a visually assisted browser interface which makes handling the device easy as it is.