Custom NDR Messages in Exchange 2007
Posted on 2011-10-26
We are considering creating custom NDR messages when inbound email arrives for "no such user" in our domain. The goal would be to provide some additional information like "it appears the person you are trying to reach is no longer here, please contact xxx-xxx-xxxx for more information ". I know I have to use transport rules to accomplish this in Exchange 2007 but I was wondering if there is a size limitation to the amount of text that can be included in the message. Maybe there is some limitation specified in the RFC or maybe there is no actual limit. Does anyone know? Obviously this message would be included in the NDR message created by the sending mail server. The hope is that a person receiving the NDR would read through the entire message and find our custom message.