I am running a trial of SmarterMail and so far I am pretty impressed. One thing I am not too sold on is using the Network Load Balancing service for high availability. I was wondering if anyone has tried using the Cluster Manager in Windows Server to get automatic failover working?

It seems to be a much cleaner solution. Setting up a cluster for a "Generic Service" seems very straightforward.

The other big advantage to using Cluster Manager is that Microsoft doesn't require a license for the hot spare as it's not performing any tasks until the primary node fails.

I'm just wondering if anyone has tried this. Please share your experiences.