Microsoft event id's 8506, 9555 and 1008 when moving some mailboxes in Exchange 2003 w/sp2.
I ran Isinteg -s servername -fix -test alltests which fixed thousands of errors in the Folder Test but I'm still getting event ID 8606 Unable to move mailbox. I'm moving them from one storage group to another on the same server. I don't have another Exchange server. I was able to move several hundred other mailboxes successfully.