I'm creating a routing group connector to a 2003 server for a second 2010 server. But what cost, or does it not matter? I currently have a connector on my first 2010 server with a cost of 10 so just wasn't sure if they'd conflict. Right now 2003 accounts route out through the first 2010 server. Any account on the first 2010 server send out through the second 2010 server. I am unable to send emails to users on 2003 from users on 2010 since I haven't yet set up the 2003 connector on the second 2010 server, from which emails go out. I'm able to receive emails to outside accounts from the second 2010 server. So it's just to 2003 accounts internally.