Well, I setup a dedicated working debian sarge system now.
I took about 3 Hours.Still some problems... (maybe i add a tuto in the wiki)
There are tons of setting and I still have to get the overview....
-I'am start to getting the clue why everything is tied together.
-Especially the Queue View is very nice.
What i probably can imagine is to set the whole suite on nonstandart ports
and to set them behind the real system so it gets proxied and I do not
loose my setup.
Example
--------
Debian Standart Zimbra Suite
25 Postfix-----------------1000025 zimbra-postfix
80 Apache (mod_proxy)----1000080 zimbra-apache
This is also how my Zope-Setup works.