Below are the steps for exporting all mailboxes to PST’s.
You can’t run the export from a 64bit OS.
Below describes the steps:
1. Find a server/PC with a 32bit OS.
2. Install the Exchange Management Tools (Exchange 2007 SP1 or later) – You can install this from the Exchange Media.
3. Install Outlook 2003 (SP2 or later).
4. From the Exchange Management Shell run the following command:
get-mailbox -server “Your server name” | export-mailbox -PSTfolderPath “Folder Path”
This will export all mailboxes to PST’s. It won’t remove any data from the mailboxes, it will just make a copy to the PST’s.
If if re-run the export it will merge the mails into the PST’s.
One problem I came across while trying to do the export was an error due to insufficient access rights on the mailboxes. Below is the error I received:
Error was found for ‘User’ because: Error occurred in the step: Moving messages. Failed to copy messages to the destination mailbox store with error: MAPI or an inspecified service provider.
To resolve this run the following command:
Get-Mailbox -Server “Server name” | Add-MailboxPermission -user “User with which you run the Export command” -AccessRights FullAccess