Could not get folder mail maifolderstatisticsexception

A very specific error message!

The MaifolderStatisticsexception error typically occurs when trying to access a folder in Microsoft Exchange Server that does not exist or is not accessible. Here are some possible causes and solutions:

  1. Folder does not exist: Double-check that the folder you're trying to access actually exists in the Exchange mailbox. You can use the Exchange Management Console or the Exchange Online admin center to verify the folder's existence.
  2. Folder is not accessible: Ensure that the folder is not hidden or deleted. Also, check if the folder is located in a subfolder that is not accessible due to permissions issues.
  3. Permissions issue: Verify that the account you're using has the necessary permissions to access the folder. You can check the permissions using the Exchange Management Console or the Exchange Online admin center.
  4. Folder is corrupted: In some cases, a folder can become corrupted, causing the MaifolderStatisticsexception error. Try deleting the folder and recreating it to see if that resolves the issue.
  5. Exchange Server configuration issue: If you're using an on-premises Exchange Server, check the server's configuration to ensure that it's properly set up and configured. You can check the Exchange Server logs for any errors or issues that might be related to the folder access.

To troubleshoot the issue, you can try the following:

  1. Use the Exchange Management Shell (EMS) to check the folder's existence and permissions: Get-MailboxFolder -Identity <mailbox> -Folder <foldername>
  2. Use the Exchange Online admin center to check the folder's existence and permissions: navigate to the mailbox's folder list and check if the folder is present and accessible.
  3. Try accessing the folder using a different client or tool, such as Outlook or PowerShell.

If none of these solutions work, please provide more details about your environment, including the Exchange Server version, mailbox type, and any relevant error messages or logs.