We are currently testing out using Barracuda's online web filtering and are working on the LDAP functionality. Attached is a screenshot showing the fields filled out. When you test it, it is successful so the IP and port is forwarding correctly. However, once you add a testing e-mail it fails with:
Error: Unable to lookup LDAP account email@example.com
LDAP lookup returned empty result.
I believe the authentication filter or mail attributes is the culprit. Any advice on what to review first would be greatly appreciated!