I am very interested in Kolab and would really like to install it on my (very well running) omv3 machine. However, Kolab ships with apache as the standard webserver. So I'm a little afraid of the installation as it might break my present installation due to conflicts between apache and nginx.
Is there anybody here who managed to install Kolab successfully and might give me some guidance? Or is it a bad idea in general to install Kolab?