Exchange 2003, Exchange 2007, and Exchange 2010 Co-Existence

We are in the preliminary steps of migrating from Exchange 2003 to Exchange 2010.  

We have one Exchange 2003 server, one Exchange 2007 server, and one Exchange 2010 server.

The Exchange 2003/2010 need to share a namespace of contoso.com.

When we send from Exchange 2003 to Exchange 2010, the mail flows directly from E2K3 to E2K10.
when we send from Exchange 2010 to Exchange 2003, the mail flows from E2K10 to E2K7 to E2K3.

How can we stop mail from flowing through E2K7 from E2K10?
bfpnaeechangeAsked:
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imkotteesSenior Messaging EngineerCommented:
Hi,

You can edit in your existing 2003 connector where it routes to 2007
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bfpnaeechangeAuthor Commented:
I am not wanting to modify the mail flow from 2003.  I need to change the route of mail that leaves E2K10 going to E2K3.
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