If we have three routing groups: Group A (1 mailbox server, 1 bridgehead server) Group B (1 mailbox server, 1 bridgehead server) Group C 1 mailbox server, 1 bridgehead server) If the bridgehead server goes down in routing group A but the network links are still all functioning will the mailbox server be able to get messages to the other routing groups? Or will we have to manually configure the mailbox server to host a routing group connector?? Regards Leo