Heard back from a developer regarding your feature request, it looks like we may have something similar to what you are looking for.
if you turn off notifications and turn on Include the Senders Email address to delivery notifications this should accomplish what you're looking to do.
If you are having issues with setting this up please give us a call at 1-866-697- 7329
Thanks for the suggestion, I will pass it along to our developers!
We have a handful of people as authorized users. When one of us sends a fax, the confirmation is sent to all people on the list. Would be nice if there was an option to set the attitude to only send a confirmation to the sending email. There is confusion at times when everyone on our list gets a confirmation instead of just the sender, plus it makes for additional unnecessary emails in other peoples boxes. Thanks for considering this!