Hi, we are centralising a customer's e-mail system. There are lots of partner sites with their own Exchange servers. We'll be creating new mailboxes, on a new AD domain on one Exchange server and we need to migrate the email from the old mailboxes across. The originating server is Exchange 2007 and the new one is Exchange 2013.
Does anyone have any sure-fire way of doing this? In the past we have used ex-merge but that is clumsy and requires a 32 bit machine and has size restrictions. We have seen the New-MailboxImportRequest command for Exchange 2013 so that may assist in the import process. But just wondered how other people have done this in the past.