When Exchange needs to send a NDR message it will by default try to detect the language of the received message and send the NDR back in the same language. In my case it should be send in Spanish because the customer is Spanish and the Exchange is hosted Germany and installed with English language.
Sometimes it will not be able to detect the language of the received message and therefore sends the NDR in the language that is default for the configuration.
To set the default NDR language you have to run a PowerShell command.
Use the following command to set the default language to English for NDRs
Exchange 2007
NDRs for mails received from external domains:
Set-TransportServer <HubTransportServerName> -ExternalDsnDefaultLanguage en-us
And for NDRs for mails received from internal domains
Set-TransportServer < HubTransportServerName > -InternalDsnDefaultLanguage en-us
The setting has to be set for every transport server in your exchange organization.
Exchange 2010
In exchange 2010 it only has to be set once for the whole Exchange 2010 organization. This is why I love Exchange 2010.
NDRs for mails received from external domains:
Set-TransportConfig -ExternalDsnDefaultLanguage en-us
And for NDRs for mails received from internal domains
Set-TransportConfig -InternalDsnDefaultLanguage en-us
If possible you should always user automatic language detection.
The automatic detection of language for NDR can be enabled by running the following commands:
Exchange 2007
Set-TransportServer < HubTransportServerName > -ExternalDsnLanguageDetectionEnabled $true
and
Set-TransportServer < HubTransportServerName > -InternalDsnLanguageDetectionEnabled $true
Exchange 2010
Set-TransportConfig <OrganizationIdParameter> -ExternalDsnLanguageDetectionEnabled $true
and
Set-TransportConfig <OrganizationIdParameter> -InternalDsnLanguageDetectionEnabled $true
This is the regarding article from Microsoft
http://technet.microsoft.com/en-us/library/bb124151.aspx
Have a nice day…. I hope this will help somebody.
Chris
