Hey Gurus,
I am trying to find reviews and use case troubleshooting for this product. This thread below was from 2011. I have also read elsewhere there were issues with it completely breaking exchange. I don't have a mirror I can test it on, so I have to test it on production. I like the idea of another internal security layer, but not if it breaks anything.
https://community.spiceworks.com/topic/174202-barracuda-spam-firewall-exchange-anti-virus-add-in