I have a bunch of exchange mailboxes on a very old Exchange 2007 server. The server was setup using a type of hosting, so the mailboxes are from different companies.
We have installed, in a new domain on a new server, Exchange 2010 in Hosting Mode. Becuase the mail boxes are in a different domain, I cannot use the built in MoveMailbox options. I fear the only way I can do this is to export the mailboxes to a pst file, then create a new mailbox on the new server, and import the pst files.
I believe there are powershell commands i can use to do this in bulk? Perhaps someone could help with these?
Or better still, does anyone have any better suggestions on how I can move these mailboxes? With less manual work, there are a lot of database, and some pretty huge mailboxes.
Thanks for any and all advice.