I am in the process of moving mailboxes from an Exchange 2003 to Exchange 2010. All the mailboxes I moved were successful except for one. That mailbox was completed but with a warning. The get-moverequeststatistics command said that it "failed to cleanup the source mailbox after the move". So I looked on the destination database and it looked like everything moved. I looked on the source database and it looked like the user was still there as well but with no items. I thought it was redundant to have both, so I deleted the mailbox from the source. Unfortunately, it also deleted the mailbox from the destination. I later found out that I shouldn't have done that and the source mailbox would eventually get cleaned up, but now I need to resolve this sitatuation.
I can undelete the mailbox from the source. In the destination, it shows up as still being on the source, but I can't access any email.
If the moved message are on the destination, I don't know where to "recover" them.
I tried to completely delete the mailbox, but I can't seem to find the user when I go through the New Mailbox with the Scope to the domain (or even entire forest). If I were to be able to create a new user, I am hoping to recover the mail items through the user's OST file.