Please update your
forum profile with the output of the following command (do not post the output in this thread):
You've not really provided any evidence that the email came into your server nor exactly what you mean by 'bouncing', why would the mail be undelivered? You do realise that a bounce can take up to five days before the sender receives notification that there was a problem, don't you? Are the emails in your deferred queue? Have a look in the
log files and see if the email has arrived at you server and what happened to it. You need to provide some examples of what exactly is happening on your server.