Schema is ready to use just read
WilmerJaramillo/ZimbraSchema - GuĂ*as Fedora Venezuela
but we have another problem FDS doesn't support empty basedn and zimbra need it to work. I'm trying to write some plugins to rewrite search query to fix emptybase dn to some suffix but for now my plugins doesn't work ;/
I'm glad that im not alone in integrating zimbra with fds. I'm waiting for more news about it
Best regards