Hi everyone, Recently we seprated our network into two diffrent ones. Netwrok A (domain A) ---> 10.10.2.x subnet 255.255.252.0 Netwrok B (domain B) ---> 10.20.0.x subnet 255.255.252.0 Both have exchange 2003. and we use the same network how can i allow my users on both domain to send emails. Thank you in advance for helping me.