By the way, is there a reason why "ProxyPreserveHost On" is needed?
Anyone knows that?
I have different apache reverse proxies inside vhosts, which point to different vhosts on the zimbra server. So the users can just log in with their username without the domain part.
But with ProxyPreserveHost On it is not working, the Zimbra server doesn't seem to recognize which virtual host the proxy connects to, with the above Off it works.
The public service host name on the zimbra domains matches the ServerName of the proxy vhost, of course. Otherwise it would not work at all
afaik.
regards