We currently have a 8.0.6 install with a public address. I would like to move this to our LAN and do NAT, this way we can utilize our UTM for spam filtering.

My plan is to stop the zimbra services, cut the IP over, setup the port forwards, setup dnsmasq and test. My question is whether anyone sees an issue with this? I don't see any reason to re-do the entire server just to cut over to my LAN and utilize NAT.