Decommision an email domain and have an ndr sent
Posted on 2015-02-03
I am using a Sophos Firewall and Exchange 2010 Server and I am discontinuing a domain and want an ndr/reject message to be sent to the sender that the e-mail is no longer valid.
I am not sure where to make this happen.. do I discontune domain in Sophos have exchange send the NDr or what are the rules of the internet to where the message will be rejected.
When I delete the domain in sophos I get a message bounce back that says relaying not allowed.
I want the sender to get an email not valid message.