apt-get install fusiondirectory-plugin-dovecot apt-get install fusiondirectory-plugin-dovecot-schema
yum install fusiondirectory-plugin-dovecot yum install fusiondirectory-plugin-dovecot-schema
fusiondirectory-schema-manager --install-schema /etc/ldap/schema/fusiondirectory/dovecot-fd.schema
fusiondirectory-schema-manager --install-schema /etc/openldap/schema/fusiondirectory/dovecot-fd.schema