failed to retreive data

Hi mt_adam,

Get-MailboxDatabase -Identity <MailboxDatabaseName> | Set-MailboxDatabase -ThumbnailProcessingEnabled $true

This command will enable thumbnail processing for the mailbox database and should resolve the issue.

If you are still having problems, you can try the following additional troubleshooting steps:

1. Check the Exchange server event logs for any errors related to thumbnail processing.
2. Try disabling and then re-enabling thumbnail processing for the mailbox database.
3. Try recreating the thumbnail image file.
4. Try moving the thumbnail image file to a different location.
5. Try updating the Exchange server to the latest cumulative update.