===== [V8] ISSUE: The message exceeds the maximum supported size. Cannot save changes made to an item to store (MS Exchange mail level restore) ===== Article ID: 8069
Reviewed: 2020-04-03

Product Version:
AhsayOBM: 8.1.0.0 to 8.x
OS: Windows ===== Problem Description ===== When performing an MS Exchange 2013 / 2016 / 2019 mail level (EWS backup set) restore, the following error is displayed:

[erro][Restorer.run] Path=C:\Program Files\AhsayOBM\bin\Microsoft
Exchange\Mailboxes\JoeB@ahsay.com\Inbox\bugfixes\AAMkADUxNjhkODg1LWFlNDQtNDljNS1iNTMzLTQ3N2Q5YjRlZGVhNwBGAAAAAAA tQ%2B7WX6hwQptsGViTE4fABwA%2BwxyUxB%2BwRJavUCIvAGz4AAA4PiD%2BAADlBtLq%2F4Throwable= [N] [ServiceException] Message = The message exceeds the maximum supported size., Cannot save changes made to an item to store., response code = ErrorMessageSizeExceeded

===== Cause ===== This issue can occur on a MS Exchange server if message size limits have not been setup correctly. The default message size settings are usually 30MB. ===== Resolution ===== To resolve this issue, update the message size limits on the affected MS Exchange server:
  1. Login to the MS Exchange Server.

  2. Open Exchange Management Shell.

  3. Run the following cmdlet to increase the message size limits to 150MB.

    >Set-TransportConfig -MaxReceiveSize 150MB -MaxSendSize 150MB

    >Get-SendConnector | Set-SendConnector -MaxMessageSize 150MB

    >Get-ReceiveConnector | Set-ReceiveConnector -MaxMessageSize 150MB

    >Get-Mailbox | Set-Mailbox -MaxSendSize 150MB -MaxReceiveSize 150MB

    4. For details, refer to the following Microsoft document.
    https://docs.microsoft.com/en-us/exchange/configure-client-specific-message-size-limits-exchange-2013-help?redirectedfrom=MSDN ===== Keywords ===== mail level, EWS, restore, message, size, limit, mailbox