as we switch from our rackspace apps e-mail mailboxes to a local exchange 2010 server, i'm looking for a working way to migrate all mailbox from IMAP to exchange mailboxes. i already tried using
imapsync and drag'n'drop mailboxes from one imapa ccount to the other, but both ways take ages or fail because of the mailbox sizes. each mailbox has about 10gig of mail.
is there any solution which can convert .mbox files to exchange directly on the server?
there's a migration tool by microsoft "Microsoft Transporter Suite", but the dropped support for exchange 2010.
do you have best pratice solutions? thanks!