The setup: We have 4 sites (Office #1, Office #2, Office #3, Office #4) each with their own Exchange 2003 SP2 servers on MS 2003 Server and internet connection that is separate from the other offices. Inbound e-mail flows into Office #1 and is redistributed to the other offices and Office #4 is the backup if Office #1 can't be reached. Outbound e-mail leaves the local Exchange 2003 server directly to the internet. The offices normally communicate over the internet connection but if that fails it automatically switches over to a p2p network that is a star configuration with Office #1 at the center.The problem: If a office looses the internet connection, internal e-mail still flows over the p2p lines as designed, but internet/outbound e-mail begins to queue up and won't be delivered until the internet line is backup. The only way we have be able to work around this is by manually removing all of the connectors of the office that is down and moving the local member to another members group and we would like to setup an automatic way for this to be done.We have attempted to create routing groups with varying cost for routing but yesterday when Office #1 lost its internet connection the internet/outbound e-mail didn't leave the local queue at all. I'm positive that some type of routing group with cost based weights is the answer but I can't find exactly where to set it up out of the three places I know of.The first is by a setting up a connector under Routing Groups\<site>\Connectors which is what we already tried and it didn't work.The second and third are under the properties of the local/main SMTP connector on the Address Space and Connected Routing Groups tab. Are one of these tabs the correct location to set this up?Thanks ahead of time for your answers