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Exchange 2003 merger

By tcimustust ·
We are about to buy another company that has their own exchange 2003 servers. We would like to leave their equipment in place for now however we want them to be able to send and recieve email with our domain name being default. (as well as recieve email with their old domain name) We are also an exchange 2003 shop. What would be the easiest way for us to accomplish this task?

Thanks

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Recipient Policies

by Churdoo In reply to Exchange 2003 merger

First, in their server, modify the Recipient Policies to add your domain name, checking the box that reads something like "This exchange organization is responsible for delivery to this domain" and making this domain the default; rebuild the Recipient Update Services, then go back to the Policy that you modified and "Apply this Policy Now."

Leave the MX records as they are, presumably they're pointing to your Exchange Server.

On your exchange server, go into the SMTP virtual server properties and find the box labled something like "forward mail for all unresolved recipients to" and fill in the DNS name or IP of the other company's Exchange server (after you've tested the recipient policies updates in the first step above).

Essentially this means that all email for your domain will come to your server as it does now. If an inbound email cannot be matched to a mailbox in your local exchange organization, then the email is forwarded to the other company's exchange server for processing.

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