We will be replacing an SBS 2003 server that runs Exchange 2003 withnew hardware. There only 12 mailboxes but some are over 2GB. We will have a new server that has Exchange 2013 installed and will also be a DC and it will have a different name and FQDN from the SBS. We will be manually creating the AD with same user names that are on the SBS.
How can we get the mail from 2003 to 2013?