I'm looking for a rough estimate for hardware requirements.
We're thinking we'll possibly have 400 x 200MB max mail accounts on the server being accessed most of the working week (Mon - Fri 8am - 9pm).
Our staff are spread across the UK over 30ish Offices.
We're thinking OSS Zimbra on CentOS or a Redhat Variant (Even possibly Redhat itself).
Does anyone have this kind of setup installed locally? I'm considering a dedicated server solution.