I have already Exchange 2003 in my organization up and running, I am making Migration to Exchange 2007 on a second 64-Bit Server, in the installation type, I specified in [MAIL FLOW SETTINGS] the Exchange 2003 Server. The Setup was completed successfully, and both Exchange servers are connected to each other.
I have tested and I moved only 2 Legacy mailboxes to Exchange 2007 from EMC "Recipient configuration / Mailbox", the operation completed successfully. Now these 2 mailboxes are on the Exchange 2007 Mailbox database, then I have tested to send and receive emails between us is worked, but to send and receive emails from other mailboxes who are still on the Legacy Exchange 2003, it didn't work even to send and receive emails from the Internet, failed.
Please any help???
Thank you in advance...