I've uploaded all other mailboxes in my organization and it seems this final mailbox is having issues. It is the largest mailbox on our on-prem Exchange 2010 server, so I'm not surprised it's taking the longest to upload.
However, the information below suggests that more than double this mailboxe's actual size has been uploaded to Exchange Online. It also suggests that about double the total item size has been uploaded as well. I'm afraid this mailbox is uploading duplicate data and that I may have to restart its sync job. Can you help me figure out what might be going on here?
Proof of double mailbox data synced:
Text
EstimatedTotalTransferSize : 28.45 GB (30,551,458,399 bytes)EstimatedTotalTransferCount : 129844BytesTransferred : 67.39 GB (72,354,504,841 bytes)Proof of double item count synced:
Text
TotalItemsInSourceMailboxCount : 129844...