Disabling Spam Filtering
I'm looking to install Zimbra at an office that has a Barracuda security appliance for filtering spam and viruses.
So, I've thought about turning Zimbra's spam filtering off for this installation.
Are there any benefits to doing so, or should I just leave it as is?
In general if you think the Barracuda is enough then you can disable Zimbra's AS/AV support. However in most cases it doesn't hurt to have another layer of protection especially if you have the hardware to support the additional CPU usage that AS/AV scanning requires.
You also get the adaptive training with Zimbra (train SA and dspam) which you'd not get with Barracuda.