Thank you for posting.
If I add the "proxy:" before the "ldap:" as in the zimbra config in that command :
postmap -q 'info' proxy:ldap:/etc/postfix/local_users_test.cfI get this error :
postmap: fatal: proxymap service is not configured for table "ldap:/etc/postfix/local_users_test.cf"
If I remove the "proxy:"
postmap -q 'info' ldap:/etc/postfix/local_users_test.cfI then get this error :
postmap: error: dict_ldap_connect: Unable to set STARTTLS: -11: Connect errorDo you need to copy the ca files or create new ones?
I didn't understand why you needed to change the bind_dn and bind_pw. Those in the zimbra config files don't work?