Hi all, I have two quick questions regarding routing group scenarios... I'm moving my Exchange 2003 environment (FE and MB servers) over to an Exchange 2007 set up (a CAS server and an HT/MB server). Now, when I install the 2007 HT/MB server, it will create a routing group that lets mail flow between my 2003 MB and my 2007 HT/MB server. Am I correct in thinking that I can leave my Barracuda 300 spam firewall pointing to the 2003 MB server? Since mail flows between the two MB servers, any mailboxes I move to the 2007 HT/MB server will still get and send email because the 2003 MB server will essentially be a smart host between the 2007 HT/MB and my actual Barracuda smart host. I think I am better off creating a send connector on my 2007 HT/MB server and configuring it to point to my two Barracuda smart hosts, which would then have to be reconfigured to point to my 2007 HT/MB server's receive connector. In that situation, because of the 2003-2007 routing group, even if I didn't have any mailboxes on the 2007 HT/MB server, mail would still flow in to the 2007 server and across to the 2003 MB server, right? This is more in line with what I'd like to do, since that way I'll have everything ready to go on the new server and I just move mailboxes off the old server as I have time and eventually just turn the old box off. Appreciate any insight! I have no test environment, so I want to make sure I've got everything planned out in advance.

Why are you moving to a product that will very soon be two versions old? You will probably need to create the routing group connectors yourself. Yes, you can leave your inbound mail routed through Exchange 2003, but it is usually my preference to move it over ASAP. I agree with pointing a new send connector to the outbound smart host. You are right that after creating the routing group connectors, Internet mail should route through Exchange 2003. Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Why are you moving to a product that will very soon be two versions old? You will probably need to create the routing group connectors yourself. Yes, you can leave your inbound mail routed through Exchange 2003, but it is usually my preference to move it over ASAP. I agree with pointing a new send connector to the outbound smart host. You are right that after creating the routing group connectors, Internet mail should route through Exchange 2003. Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Any update on the issue?Gulab Prasad, gulab@exchangeranger.com My Blog | Z-Hire Employee Provisioning App

hi, If above solution can help you, please remember to mark as answer. I think all method that you mention are ok. You can set your exchange 2003 to face internet, it means that you can set your exchange 2003 to use your Barracuda as smart host. Or you can set your exchange 2007 to face internet. Mail flow always will be ok. But i recommend that you'd better to set your exchange 2007 to point to Barracuda. hope can help you thanks,CastinLu TechNet Community Support

hi, If above solution can help you, please remember to mark as answer. I think all method that you mention are ok. You can set your exchange 2003 to face internet, it means that you can set your exchange 2003 to use your Barracuda as smart host. Or you can set your exchange 2007 to face internet. Mail flow always will be ok. But i recommend that you'd better to set your exchange 2007 to point to Barracuda. hope can help you thanks,CastinLu TechNet Community Support