Just developing my taste for zimbra a little further
I've found some difficulty getting networking to go in the rpath setup. Attempting to set a hostname in the network configuration step of the rpath web service results in a parse error. You are unable to apply changes and/or continue (pressing done also gives the error).
I changed from dhcp, back and forth and finally went to the help page and back again which mysteriously helped it overcome the parsing. If i can recreate this, I will file a bug (perhaps in rpath and not zimbras bugzilla??)