I know it may sound strange, Chinese signs in non-delivery reports. After some investigation I discovered something which made the problem stranger then I first thought. When the message was printed the text was displayed in Dutch.
When the same mail was sent from an Outlook 2003/2007 client the problem was not there. So I decided to start searching on the internet and after a while I found something on the Technet forum which looked pretty much on the problem I had.
The problem is caused by a bug in Outlook XP which will not be fixed anymore. To make the problem clear I summarized some details below:
- mail-client is Outlook XP
- happens only when a NDR is delivered in HTML format
- when the mail is printed everything look OK
To fix this issue you will need to tell your Hub server that every NDR needs to be sent as a plain-text NDR, this can be done by executing the following Powershell command:
Get-TransportServer | Set-TransportServer –InternalDsnSendHtml $False
Another solution is upgrading your Outlook client to 2003 or higher.
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