Exchange 2010 SP1 Update Rollup 5 server information store database was restored to a Recovery Database using EMC Networker successfully. The Recovery Database is in a mounted state with mailboxes listed within in it. However, when restoring the mailbox content using the following command: Restore-Mailbox –Identity MYMAILBOX –RecoveryDatabase MYRECOVERYDB –RecoveryMailbox LOSTMAILBOX –TargetFolder FOLDERFORLOSTMAILBOX Returns the following error: Mailbox "LOSTMAILBOX" doesn't exist on database "MYRECOVERYDB". + CategoryInfo : NotSpecified: (0:Int32) [Restore-Mailbox], ManagementObjectNotFoundException + FullyQualifiedErrorId : 66265C53,Microsoft.Exchange.Management.RecipientTasks.RestoreMailbox Note: I've used the correct alias name for the mailbox name; i've also tried combinations such as first name, or last name or both and so forth. Issuing a Get-MailboxStatistics -Database MYRECOVERYDB to see if the mailbox is there and it is as shown below: DisplayName ItemCount StorageLimitStatus LOSTMAILBOX 39495 MailboxDisabled Note: The StorageLimitStatus shows a strange output of MaibloxDisabled. Perhaps this may be the culprit. Going by the article's documentation I cannot complete the restore of the mailbox as I'm stuck at the restore-mailbox error that it cannot be found. Please advise & Thank you! Source of article: http://www.testlabs.se/blog/2012/07/05/exchange-2010-restore-to-recovery-database-using-emc-networker/