Exchange 2007 Transition Coexistence

[lck092580]

Hi,

I just finished installing Exchange 2007 into a Exchange 2003 org and all
internal email flows properly with migrated mailboxes. However, when I try
to send emails to migrated mailboxes that are on Exchange 2007, the mail
never makes it to their inbox from our front end server.

Here's our setup:

1. One front end server
2. One backend Exchange 2003 server
3. One Exchange 2007 server with Mailbox, client, and hub transport roles in one server.

I don't have any issues with Exchange 2003 mailbox users sending emails to
Exchange 2007.

Is there a way to get external mail to flow into Exchange 2007 through our Exchange 2003 front end server?

THanks.

 

[Darphbobo]

You need to create a connector from the exchange 2003 to exchange 2007 servers

 

[Zelandakh]

Try this:

http://nickgillott.blogspot.com/2007/08/mail-flow-from-exchange-2003-to.html

 

[lck092580]

I had the same problem as the user with external email going to Exchange 2007. I'm currently trying to upgrade the FEs first as per Microsoft tells me to.