When migrating mailboxes to Exchange 2013, you can run into an error the regarding maximum number of bad items. This causes the import to fail: Error code: -2146233088 This mailbox exceeded the maximum number of corrupted items that were specified for this move request. The message exceeds the maximum allowed size for submission to the target mailbox. A bad item can be one whose size is a bit large. The New-MailboxImportRequest commandlet can be called with the -BadItemLimit option, specifying a number of items> when using that option you mustĀ also specify the -AcceptLargeDataLoss option. For example, to import a mailbox called john.doe using a pst of john.doe.pst, the command would…