Integration with Microsoft Exchange 2007 occurs by way of Exchange’s inbuilt web services API. This API is enabled and accessible by default. However, to perform a successful import, one needs to use an account with sufficient privileges to access all mailboxes.

 
To do this:
 

  1.  Login to Exchange 2007 server as Administrator
  2. Either create a new mailbox called ‘journal’ in Microsoft Exchange or use an existing one that does not already have any Admin privileges assigned.
  3. Run the Exchange Management Shell
  4. Type the following into the Exchange Management shell:

 

 

Get-ClientAccessServer | Add-AdPermission -User journal -ExtendedRights ms-Exch-EPI-Impersonation
Get-MailboxDatabase | Add-AdPermission -User journal -ExtendedRights ms-Exch-EPI-May-Impersonate

 

 

Note: If necessary, substitute ‘journal’ to be the chosen username of the impersonation account.

 

Note: It is also possible to use the computer account created in Active Directory for the purposes of login (as described in Logins). In this case, the mailbox name should resemble the following: “service$@smallbusiness.local”.

 

To prevent Microsoft Exchange from throttling Архива requests:
 

 

New-ThrottlingPolicy -Name mailmigration -EWSFindCountLimit $null -EWSFastSearchTimeoutInSeconds $null -EWSMaxConcurrency $null -EWSMaxSubscriptions $null -EWSPercentTimeInAD $null -EWSPercentTimeInCAS $null -EWSPercentTimeInMailboxRPC $null
$b = Get-ThrottlingPolicy mailmigration;
Set-Mailbox -Identity journal -ThrottlingPolicy $b;