On Wed, Aug 27, 2003 at 01:43:29PM +0200, Tore Anderson wrote: > However, a quick test shows that this is not the case (as Postfix > appears to reject the SMTP RCPT command for non-existent accounts), > so I fail to see how it is relevant.
Sometimes, there is no choice. That could be the case if, for instance, you are backup MX for a server that is down. You have accepted the message from the original sender already -- possibly hours ago. The primary server comes back up and rejects the message. You have no choice but to generate a bounce mail to the original sender. This behavior is not limited to Postfix. Perhaps you would like to file a grave bug against the SMTP virtual package?
