Howto Import PST Files with LargeItems

Hi,

we are trying to import PST Files which are containing Mails with Attachements larger than 10mb @ Exchange Server 2013 (CU3)

If i run the following command:

New-MailboxImportRequest -Mailbox USERNAME -FilePath \\Server\PST\Username.pst -LargeItemLimit 99 -BadItemLimit 99 -AcceptLargeDataLoss

I'm just able to ignore the error/failure message and it won`t import the messages with the larger attachements, larger means every mail bigger than 10mb in size.

at some blogs i could read that changing the transport/recieve/sendconnector sizes could help, so i tried:

Set-TransportConfig -MaxReceiveSize 100MB
Get-ReceiveConnector | Set-ReceiveConnector -MaxMessageSize 100MB
Get-SendConnector | Set-SendConnector -MaxMessageSize 100MB

After restarting the servers i had no luck with those changes.

Those days everybody has attachements larger than 10mb, so there has to be a way of importing those mails
without any 3rd party tools or whatsover ?