Since most of the underlying components are of the Open Source variety, would Zimbra be able to do the IPv6 thing?
my_networks and such and also the fact that it binds to only one single IP Address is why I ask. Or do I need to have a component install with an IPv6 only Zimbra box feeding a regular IPv4 Zimbra box?

I plan on setting up a test box to play around but wanted to get some of the "low-hanging" fruit observation(s) stuff first before I dive in an' all..... ;-)