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We have a domain trust between two companies (connected via MPLS) and the other company receives email on our behalf (common SMTP address) and sends externally received email onto us via external contacts setup in their Exchange environment to mimic our users Exchange accounts held locally. &nbsp;<br />
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These emails are simply sent onto us our via direct MX record (DNS) by the other company.<br />
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If we wanted this email routed direct to our Exchange server technically all the other company would have to do is create a send connector that points at our Exchange systems IP address?
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We have a domain trust between two companies (connected via MPLS) and the other company receives email on our behalf (common SMTP address) and sends externally received email onto us via external contacts setup in their Exchange environment to mimic our users Exchange accounts held locally.  

These emails are simply sent onto us our via direct MX record (DNS) by the other company.

If we wanted this email routed direct to our Exchange server technically all the other company would have to do is create a send connector that points at our Exchange systems IP address?

Send connector in Exchange 2007

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.