Using Postfix (version 2.10.2.2, part of a Zimbra installation) on Ubuntu I would like to be able to achieve the following:
If an email originates from [email protected] that targets [email protected] generate a non delivery report simulating that the address [email protected] does not exist on this server (any longer).
Background: One of my users does not want to receive any more email from a certain sender anymore but wants to keep the current address active.