Route outbound mail through Exchange 2010 box

[snootalope]

I'm attempting to get our exchange 2003 server (where all of our mailboxes sit at the moment) to route outbound email through our to-be exchange 2010 box.

After installing exchange 2010 it created the routing group connector on it's own and it works fine sending mail between the test email boxes on the e2010 box and the production mailboxes on the e2003.

However, when I set my default smtp connector to use the smarthost e2010 box, nothing leaves. The queue says a email loop has been detected and the email quickly produces an NDR. I'm sure it's something simple I'm missing here...

The test email boxes on the e2010 machine can send internet bound email just fine. it's just the messages from the e2003 box that are internet bound that produce an issue. What connector do I need to setup on the e2003 machine so it uses the e2010 box as a relay?

I've also setup the appropriate receive connector on the e2010 machine and it accepts the messages from our e2003 machine just fine..

 

[58sniper]

Okay - let's get the basics out of the way. Did you create a send connector on the 2010 box for outbound Internet traffic? If not, all email would go out through whatever you have configured on the 2003 side.

Once you have a send connector configured, don't configure a smart host on 2003. You want to kill off your outbound connector/SMTP virtual server config on 2003. This will force the mail to go through the RGC to 2010, and out through the send connector.

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/

 

[snootalope]

Yep, got the send connector on the e2010 box setup and working.

Tricky thing here is I want our e2003 box to keep receiving email just as it is. Just outbound needs to go through the e2010 box. If I killed my default smtp vs on the e2003, then no receiving..