My company recently took over another company that was using Exchange 2010. We create a mailbox on our current Exchange 2010 server for each user and had put a forwardingsmtpaddress on each mailbox in their old environment to forward to our server.
I need to export all the existing e-mails from their server to my exchange server. To do this I would like to stop all mail flow to the mailbox and have the exchange server forward all incoming e-mail to the new server and deliver it accordingly.
I know that I will have to have my exchange server accept e-mail for their domain, which I will have setup. Just not sure how to have the exchange box forward the e-mail.
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