Cluster failing over to Local rather than another server

Hi there,

I have three servers clustered on our network, and this afternoon one of them crashed (well, actually I killed it by accident). Instead of everyones mail files routing through to the other server (as I would have liked them to) they routed through to each persons local replica.

Is there a way that I can tell the systems to route to a server before going local?

Thanks!

Alex