...but I did once see an application that basically consisted of the following:

1. Fax gateway receives fax
2. OCR software extracts the recipient
3. Acrobat turns the fax into a PDF
4. $EMAIL_SYSTEM sends the PDF file to the appropriate person

Whether it worked or how well it worked, I didn't see for myself. However, the very indication of a production system in a production office indicates that it worked well enough, enough of the time, that people used it.