Exchange 2007 Address Policy with non "Accepted Domain"

Configuration is weird, so I'll explain it a bit:
Conglomeration of companies wants to use a unified e-mail domain("domain.tld") for all sites and users.
Any messages that are for the sites we manage gets forwarded to our server: user@doman.tld --> user@city.domain.tld. Our server listens for mail on the city.domain.tld address

This works great, everyone gets their mail and reasonably low overhead compared to the options we had.

Problem:
I want outgoing mail to show as coming from user@domain.tld and the server runs exchange 2007.
I cannot create a recipient policy entry that refers to any domain that is not listed in the "Accepted Domains" list.(This was dead simple on exchange 2003)

But, if I put the domain.tld in the accepted domains, it then thinks that all mail to that domain is local and fails when the user is not local, but the address is still valid.

SO

I need to get a recipient policy in 2007 that allows me to set my default outgoing address to something not in the Accepted Domains list.

OR

Get exchange 2007 to route any message that don't have a local user to the external mail server for delivery.

Any ideas?

Jared
Internal Ticket #38652Start Free Trial