[root@zimbra zimbra]# su - zimbra
[zimbra@zimbra ~]$ zmprov mcf zimbraImapCleartextLoginEnabled TRUE
ERROR: service.FAILURE (system failure: unable to modify attrs) (cause: javax.naming.directory.SchemaViolationException [LDAP: error code 65 - unrecognized objectClass 'zimbraHsmGlobalConfig'])
[zimbra@zimbra ~]$
