I am in the middle of a transition of an existing, production machine. The current system is using LDAP with a PHP front-end for its Vhost configuration.
I have already configured apache so far that it runs newly added ISPConfig domains fine.
But postfix is confused/broken. What is need is
a) some (detailed) explanation on why certain configuration options are needed for ISPConfig.
b) ... to know whether ispconfig changed main.cf during its installation. And if so, how I can enforce it to rerun only that main.cf generation again.
c) where ISPconfig stores the mail, the relay_hosts, the local-delivery-table and the aliases. And in what format this is stored.
I need to know this, in order to convert my LDAP users to postfix, but most important, to make my mail work again