I have a mixed Exchange infrastructure where there are some Exchange 2007 Hub servers and some Exchange 2010 ones; they are all in the same Active Directory site.
There are also some Edge servers; they are all running Exchange 2010, and they are subscribed to the organization.
I discovered from the tracking logs that incoming messages are being delivered by the Edge servers to both the Exchange 2007 and the Exchange 2010 Hub servers; since all mailboxes are on Exchange 2010 servers, those messages need an additional hop to reach their recipients.
How can I configure the Edge servers to route inbound messages only to Exchange 2010 Hub servers? The inbound Send Connector is useless here, as it doesn't specify its target servers.