Error: The Exchange AutoDiscover service is not available
Article ID: 160309
Data Loss Prevention Network Discover
You have recently upgraded your Discover server to DLP v11.6. You are then trying to configure the Exchange Scanner to connect to a Directory Server configured with LDAPS for Exchange 2010. However you are getting the following possible errors:
1. The Exchange Autodiscover service is not available. Make sure you are using HTTPS connections. If the problem persists, see your Exchange Server admin.
There are two options to deal with this issue.
Option 1: In the Enforce console, go to the advanced settings for the discover server. Find the value: Discover.Exchange.UseSecureHttpConnections=, and set it to false. Save that change and recycle the Vontu Monitor service.
Option 2: Change the Directory Server URL without using SSL connectcion to LDAP and the non-secured port of 389. i.e. ldap://host:389