I have a domain that hosted in with us, however recently they want to use their own mail servers. I was able to config my DNS servers to read from a static config files and ignore the slave zone, so the MX record is working the way I want it to. Is there anything I can do to stop ISPconfig from writing that domain hostname and users emails into the Postfix config files: local-host-names and virtusertable? I tried to delete all the DNS settings in the control panel, but it seems ISPconfig did not remove from them from the database(i can see the entries from phpmyadmin) and kept writing the emails into the Postfix files. Thank you.