Posting in V8 forum as I'm now trying V8 to test if it will solve a problem with Exchange export that has started to appear on a customer's existing V6 install.
We've got 2 Exchange servers - Exchange 2010 on Server 2008 R2. Errors started cropping up periodically related to corrupt MAPI install. Re-installing MAPI through BackupAssist then rebooting would generally sort things out.
I'm now at a point where this is no longer working: 1 Exchange server will sometimes export successfully, then not etc, the other Exchange server is continually failing.
I see errors relating to Winsock, MAPI and General Failure. Not always the same errors each time but always 1 or more included.
I've done the following:
Checked the host and FQDN is in hosts file, then ipconfig /flushdns
I've checked the Backup Identity is in Domain admins, Organization Management, Schema Admins
(these have always been in place and still are)
Disabled IP V6 to test
Ran cmdlet for my backup identiy: Get-MailboxDatabase | Add-ADPermission -user [username] -AccessRights GenericAll
Uninstalled MAPI, rebooted, installed the March 2014 MAPI, rebooted
Selected just a few mailboxes to export, ran successfully, started adding more until an error. Removed the new error mailboxes, and then see the MAPI error re-appear each time but on a different mailbox each time.
Backup identity has a confirmed visible mailbox that is also capable of sending receiving.
Also to confirm about the MAPI error, Outlook has never been installed on either Exchange server.
What's left to try here?