kolab integrate with existant ldap

[Mikael]

Bernhard Reiter bernhard at intevation.de wrote :

>> I'd like to install kolab in our organization but there is already an
>> independant openldap server we manage to keep track of the users.
>>
>> Is there a way to make kolab in sync with this ldap server ? (this to
avoid
>> to use the web interface to add & remove users)

>Within Kolab you also need an imap and http server.
>If you add the corresponding Kolab attributes and auxilliary classes
>to your ldap, you can use it and completely go without the Kolab
>webinterface. However this needs some expertise.

Yes, it does not sound very easy...
I haven't worked much with ldap but I was hoping that I could install
kolab with its openldap server and then only populate some parts of kolabs
ldap tree with our user infos but leaving the kolab specific classes in
the kolab ldap server. Any experience or opinion about that ?

Thanks,
Mikael