Faxes are considered more legal then email using the confirmation page spit out by the fax machine.
I don't know why that sheet of paper can be trusted by a court as it can be produced by any semi savvy computer user. I see that efax claims their faxes are legally binding.
Is there any way to get a legal binding confirmation from Twilio's fax?
The status callback does not seem adequate. Does Twilio, as a third party, provide a way to date stamp the document or first page?
Twilio developer evangelist here.
I'm afraid the status callback is the only thing we provide in terms of a confirmation. Whether that is legally binding or not is a question for your lawyer.
We also do not provide a way to timestamp the front page as part of the API.