Specifies the property of the local name resolution. Can be one of the following 1. FallbackSecure: Only use local name resolution ...

Specifies the property of the local name resolution. Can be one of the following
1. FallbackSecure: Only use local name resolution if the name does not exist in DNS (most restrictive) 
2. FallbackPrivate: Fall back to local name resolution if the name does not exist in the DNS or the DNS servers are unreachable when the client computer is on a private network (recommended) 
3. FallbackUnsecure: Fallback to local name resolution for any kind of DNS resolution error (least secure)