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Sync failures after moving mailbox

Question asked by user.xNx5BUx6pX on Apr 21, 2017
Latest reply on Apr 25, 2017 by user.W5wIBaEWML

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 failed taking less than a second
Reason: connection validation failed


Others (non moved) work fine and are all Diff-syncs.


Sync engine


How do I get the moved accounts syncing again?