I HAVE move 1000 mailbox last night and this morning the network is 100%used, when i look the root cause is many outlook 2010 client resync the ost file, how is this possible? i have just do move mailbox from the same forest.
does this mailbox have a corrupted item on exchange 2007 and when i move them exchange 2013 correct the problem so outlook resync ost???
thank you for your help