[turmace]

I recently installed the latest version of Zimbra. I created users with a default known password to facilitate syncing of emails from the old server to Zimbra. Once the ldapsync was finished Zimbra was reconfigured to authenticate with our external ldap server.
However users can now log in with both the password on the external ldap and the password configured locally on Zimbra
Is there a way to prevent users from authenticating locally when an external ldap is selected?