On 1/12/2011 11:00 AM, Zhou, Yan wrote: > Hi There, > > With Postfix set up by default, it will send a bounce message to sender > if it cannot deliver the message. But I can create SPAM message with > some innocent sender address and send to Postfix. Then, the innocent > sender will get undelivered email from Postfix. > > How would I disable bounce without seeing messages still queued up in > Postfix? (I can disable bounce by commenting out entries in Master.cf, > but messages are still queued up).
Don't disable bounce. It plays an important role. > Even if we can solve the above problem without disable bounce, we still > need to do that anyway. We are exchanging only-encrypted messages > between sender & recipients, so the concept of bounce does not apply > here. If we were to generate a bounce message, the bounce would have to > be encrypted for recipient to know how to interpret it, I do not know > Postfix generates bounce with encryption in it. > > So, the question is: how to disable bounce without invalid messages > being queued up in Postfix? > First of all: Don't accept email for non-existent users. An example of this discouraged practice is an empty relay_recipients_maps Please provide evidence of your issue if you wish more help. This includes 'postconf -n' output and sample log entries for a transaction in question. Brian
