I got an error msg when exporting mailbox to pst from exchange 07 mailbox. command: Export-Mailbox -Identity user@x.com -PSTFolderPath C:\PST\user.pst error msg: Error occurred in the step: Moving Messages. Failed to copy messages to the destination mailbox store with error: MAPI or an unspecified service provider. ID no: 00000000-0000-00000000, error code: -1056749164 Any helpis appreciated. -John eagle6666@yahoo.com P.S I have no problem exporting from exch 03 mailbox.

anyone have ANY ideas on this? I have the same issue but for IMPORTing.PSTfiles. Approx 20 .PST files to import and after trying all of them, they get the same error. Summary exmerge from Exchange 2003 worksbut cant import into 2007. So i dideseutil /g and and /g on the 2k3 database.(thinking it was something on the 2k3 database and the exmerge process)No errors.I can add the PST file to Outlook and everything is there, Inbox, Contacts, Calendar, etc. Any Advice? Thanks Brad

I had this same problem and found on another board that I needed to set Send-As and Receive-As permissions from my user on the mailbox databases. See the example below. Get-MailboxDatabase -identity "SERVER\First Storage Group\Mailbox Database" |Add-ADPermission -userUserName -ExtendedRights Receive-As, Send-As To give credit where credit is due, I found this very helpful tip here: http://www.webservertalk.com/archive128-2007-11-2223975.html

Are these requirements met? ---------------------------------------------- To export data from a .pst file, you must run the Export-Mailbox cmdlet from a 32-bit computer that has the following installed: The 32-bit version of the Exchangemanagement tools Microsoft Office Outlook2003 SP2 or later versions http://technet.microsoft.com/en-us/library/bb266964.aspx

Thank you for finding this. This helped out tons!