If PIPE forwarding is properly set up on your server then bounces will be registered immediately.
If you run into a situation where you have set up PIPE forwarding but
it is not registered as a bounce then that means you have either not
set up PIPE forwarding on your server or your PIPE forwarwrding is not
configured properly on your server.
The following articles give instructions on how you can set up PIPE forwarding on your server:
