When you type get-outlookanywhere settings, the settings are typically retried from CAS servers. However, those settings can also be retrieved directly from active directory and usually faster than retrieving from CAS servers. To do that, use this PowerShell one liner:
get-outlookanywhere -ADPropertiesOnly | fl identity, *auth*, *hostname
That command will display server name, client authentication method, iisauthentication method and external/internal hostnames
Ex-Shell 