Routing all email from a specific local source domain(we have multiples) to a specific remote host

We are running Exchange Server 2007

We have multiple domains so our primary smtp addresses look something like this for each mailbox/account:

userman@domain.com, user@anotherdomain.com, someotheruser@yetanotherdomain.com

We would like to be able to send all email for a particular local domain to a remote server/smart host.

So all mail sent from *@domain.com on the local server is routed to some other server on a completely different network. I think the term is smart host?

This is not done through SMTP Send Connector as you cannot specify the local hosted source domain, only Address Space which specifies the destination.

I think what I am trying to do is called source based routing. I have been told that this was no longer possible in exchange 2007. Is there a way around this limitation?

Thanks in advance for any help!
GWSpectrumAsked:
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GWSpectrumConnect With a Mentor Author Commented:
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jrgcomputingCommented:
I'm not sure what you are trying to do. However if you want to deliver mail locally and if the email address doesn't exist locally and instead of sending an email saying the recipient cannot be found forward it on to another email server,

To do the above simply change the accepted domain (EMC, Organization Configuration, Hub Transport, Accepted Domains) to External Relay and change the MX record on the DNS Server that the exchange server users.
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AkhaterCommented:
You can do it, in exchange you can only specify the route based on the destination and not on the source. and no there is no way around it
sorry
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AkhaterCommented:
sorry I mean you CANNOT do it (Typo
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GWSpectrumAuthor Commented:
I found a RouteBySender transport agent that enables exactly what we require. You can find it here: http://www.ivasoft.com/routebysender.shtml
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AkhaterCommented:
Ok sorry I should have been more specific, it cannot be done natively
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Jamie McKillopIT ManagerCommented:
Hello,

This is possible, with third-party software - http://ivasoft.com/routebysender.shtml. It is fairly expensive though.

JJ
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GWSpectrumAuthor Commented:
Actually I am just writing my own, lots of examples available and I program anyhow. Win-Win!
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GWSpectrumAuthor Commented:
Thanks for the help anyhow!
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