I want to enable people to use LDAP to access their contacts from mail clients.
I would prefer if this information were not made public though... so I want to require authentication.

But Zimbra seems to use LDAP internally without authentication, and adding "require authc" to slapd.conf seems to stop mail sending etc from working

http://www.zimbra.com/forums/adminis...-security.html suggests blocking access to LDAP with the firewall but then people can't use it externally at all

Is there any way to configure openldap to do this or should I be filing something in bugzilla?