I'd like to integrate my presence with outlook calendar, but I'm not able to authenticate to an exchange server. I'm getting the error message:
Authentication failure on server; Could not authenticate to server: ignored NTLM challenge, ignoring empty Negotiate continuation Cluster ID:StandAloneCluster Node ID:presence.
We use CUPS 6.0.4 and Exchange 2003. My exchange account is OK and NTLM is turned on on exchange server.
Can anyone help me to solve this issue?