My Review and answer for myself is done:
- Zimbra is probably not what I'am looking for:
- it needs to touch already working system components.
- it does not integrate properly by this in working environment
- it is not native Debian compliant (native package server, installation)
- therefore security updates will not be provided
- apache2, postfix, ldap are security critical components and if
they stay outside the debian security repository this is not a solution for me
If there are any plans to provide a Version which integrate well into debian system or if any user made a opensource fork which integrates well i will
consider Zimbra as solution.
Thanx for your help.