You can see details on how to send emails in this thread: http://forum.support.xerox.com/t5/FreeFlow-Core/Sending-emails-with-the-external-component-and-Blat/...
To send the job file use the variable that points to the job file in the external node: $FFin$
I would like to attach a lo-res pdf proof to an email to be sent to our CSR's. How would the variable look? I don't want to always be changing the variable, per the file name; is there any way around this? I guess I could name all proofs generically, "proof" and use that as the variable, but I would like the job number to stay on the proof.