Trust Barracuda?

Yes... we agree that Barracuda is "cost effective".  You too could create cost effective solutions if you leveraged open source tools.  However, the question needs to be asked, are you willing to reduce your risk posture to save a few bucks?  Case in point:

M$ Word file started propagating across the Internet with malicious macros at ~7:45amCST.  This file is actually a Dropper File, as shown via this Forcepoint File Sandbox Report, which is attempting to infect your local files and phone home to a website in the US:

What is the Anti-Virus Coverage Rate you may ask for this Dropper File?  Not good... only 5 companies currently detect it:

OK... lets assume your security controls have not blocked the download of the dropper, is your Barracuda Solution going to protect you from the download of the actual payload?  Ummm... no:

In summary, please contact ESPO Systems if you'd like to implement controls to block the attack across the entire Kill Chain.