I have a problem with customizing system messages in my Exchange 2010 SP2 environment.
I have created a transport rule which rejects mail with the custom status code 5.7.230. I have no problems with supplying the "diagnostic information for administrators", but I have no faith that our users will read that message...
I have therefore followed technet and other forums so that I can customize the DSN. I have created the message to the specific status code, but when I try to send a mail it don't return the new message text, only the std. rejection message.
Anyone who have encountered this in the past?