So, I have the following setup: = zimbra running with SSL internally (no apache), it works ok from our local network. is an SSL apache2 server doing ProxyPass to the internal network, following the guide here ZimbraApache - ZimbraWiki, like:
    ProxyPass /
    ProxyPassReverse /
The problem is: if I access internally the url I get the login page, I fill user name and login and then my browser is redirected to '' that obviously can't be accessed externally. If I use the 'low fi' zimbra interface (/zimbra/h) it works perfectly, what makes me thing that maybe something in the Javascripts are doing the redirect.

Any tip? How I can disable this redirect thing (I tried ?redirect=0, but no game). Running in debug mode shows me an empty login screen (no fields or whatsoever).