We'r e migrating to Exchange 2013 and every time I move a mailbox it fails
Previously I was advised to
delete the CAL-mailbox files from State/account/cal/1286
delete the synk-dat from sate\account\mms\1285
delete the user from the state\global\discovery
However this was when I moved from 2007 to 2013
I've had to move some mailboxes back and I'm getting the error so I repeated the process but this time it fails.
The discovery folder has the user listed but neither the mms/1285 folder nor the cal/1286 has any entries
Logs inditcae the attempt
FULL sync on firstname.lastname@example.org failed taking less than a second
Reason: connection validation failed
Others (non moved) work fine and are all Diff-syncs.
Sync engine 126.96.36.1999
How do I get the moved accounts syncing again?