I am running into a problem to let ZIMBRA to use both local and remote LDAP auth at the same time. Is this allowed in the system?

The reason I think it will work is that the current admin account is using local account, however, it is the only local account which can login into Zimbra. Now matter how, i get the following error:

2007-05-29 17:08:23,038 WARN [http-80-Processor99] [ua=ZimbraWebClient - IE7 (Win);ip=;] security - cmd=Auth; account=adm_zhr@test.com; protocol=soap; error=authentication failed for adm_zhr@test.com;

Remote accounts are fine. I just want to create some users which do not need to be in the remote ldap db.