KB ID 0000037 Dtd 10/06/09
“Error occurred in the step: Approving object. Current mailbox size is larger than the limit set on the target Exchange store or the target mailbox. To preserve source mailbox size limit, parameter PreserveMailboxSizeLimit must be set., error code: -1056717336”
Cause: Mailbox is too big, for the Mailbox policy on the destination server.
1. Launch Exchange Management Console > Server Configuration > Mailbox > Right Click Mailbox store.
2. Properties > Limits > Un-tick the three limit box’s (Or set them large enough to accept the mailbox).
3. Now try to move the mailbox again.
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