You can create a Send Port Group where one Send Port copies the file, and the other(s) handle processing. I have one port copy an input file to "archive", one sends an SMTP notification, and the third sends the file to the "submit" or processing folder, where of course its Received and handled by a pipeline, mapper, and orchestration. Set the filter (such as a Receive port name) in the send port group, not the individual send ports, so your file/message doesn't get deleted before another port can handle it.
Is this what you were looking for?