Ian Moroney writes:
ldapadd -x -h localhost -D cn=mailadmin,dc=global-drum,dc=com -W -f /srv/ox/share/init_ldap.ldif I then get: ldap_bind: Invalid DN syntax (34) additional info: invalid DN
Maybe your slapd.conf lacks the statement
include <whatever>/core.schema
or has whitespace in front of it. If so, fix that.