Considerations and Limitations

This section lists considerations and limitations of Veeam Explorer for Microsoft Exchange.


  • When Veeam Explorer for Microsoft Exchange is installed on a server on which both Veeam Backup & Replication and Veeam Backup for Microsoft 365 are installed, the notification settings will be inherited from the Veeam Backup & Replication Global Notification settings.
  • Veeam Explorer for Microsoft Exchange does not support data recovery using a group Managed Service Account (gMSA) to connect to the target server.
  • Starting from Veeam Backup & Replication 12.1, Veeam Explorer for Microsoft Exchange supports data recovery from CDP replicas. Consider the following limitations:
  • When you recover your data from CDP replicas, you can only use long-term (both application-consistent and crash-consistent) restore points. Short-term restore points are not supported.
  • You can recover your data from a CDP replica if its CDP policy is currently running. During recovery, the CDP policy does not create new long-term restore points and does not delete existing ones. Short-term restore points are still created.
  • You cannot restore application items from a CDP replica in parallel with guest OS file restore, SureReplica, and failover.


  • Veeam Explorer for Microsoft Exchange does not support restore using PowerShell Direct, VIX API or vSphere Automation API.
  • Sending objects that exceed 3 MB in size may fail. To fix this issue, install this Microsoft update.
  • Bulk restore (restore of multiple objects) is not supported for public folder mailboxes. Use the regular per-object restore instead.
  • Mailboxes can be restored only to mailboxes of the same type. For example, a user mailbox to a user mailbox, an archive mailbox to an archive mailbox.
  • To restore In-Place Hold Items or Litigation Hold Items to the original location, consider the following:
  • In-Place Hold Items restore is not supported for On-Premises Exchange Server 2013 due to EWS limitations.
  • To restore In-Place Hold Items of Exchange 2016 mailboxes, these mailboxes must have In-Place Hold enabled and applied at least once with DiscoveryHolds system folder creation. Otherwise, restore will fail with the following error:

"Failed to restore In-Place Hold Items. Restore of In-Place Hold Items into Exchange 2013 is not supported".

For information on enabling In-Place Hold and Litigation Hold, see this Microsoft article.

  • [For Veeam Explorer for Microsoft Exchange that comes with Veeam Backup & Replication] Restore of an entire mailbox or selected mailbox items to the original location is available with Veeam Universal License. When using a legacy socket-based license, the Enterprise or Enterprise Plus editions of Veeam Backup & Replication is required.


To use an internet proxy server to restore backups created by Veeam Backup for Microsoft 365, make sure to provide appropriate proxy server address and the port number. To do this, go to the Control Panel > Internet Options Connections tab, click LAN Settings, select the Use a proxy server for your LAN check box and specify a proxy server you want to use. Credentials for such a proxy (if needed) will be taken from the Control Panel > Credential Manager > Windows Credentials console.

Consider that this functionality is only available in Veeam Explorer for Microsoft Exchange that comes as part of the Veeam Backup for Microsoft 365 installation package.


  • Export is available if you have a 64-bit version of Microsoft Outlook 2010 or later installed on a computer with Veeam Explorer for Microsoft Exchange.


For Outlook for Microsoft 365, only the Semi-Annual Enterprise Channel is supported. For more information, see this Microsoft article.

  • To avoid conflicts during export, make sure to exclude PST files from the indexing scope. Oftentimes conflicts may occur due to a file you are exporting is being indexed at the same time. When exporting to shared folders, exclude Outlook files or disable Windows search on the destination computer.

Page updated 4/8/2024

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