We were in the process of migrating from Exchange 2007 to Exchange 2010 and hit a brick wall when trying to migrate Public Folders.

After resolving issues with connectivity (and another issue with an old Exchange 2003 server being listed in AD that was causing the replication to fail) it finally appeared that messages were migrating from one server to another. However, we appear to have jumped the gun and ran MoveAllReplicas before the process was complete.

We are now stuck with about 210MB of public folders on the new server from a 7GB public folder store on the old server. The messages appear to be available on the old server since running get-publicfolderstatistics shows that there are messages available.

We have waited several days for the move to continue but we are stuck at 210MB. Is there something we can do to complete the replication so that all of the messages move from the old server to the new server?