The fax protocol provides a real-time recipient receipt. Email doesn't.

Seriously. That's the reason that fax is still popular in the medical industry.

const_cast 3 days ago | parent | next [-]

Also the limitations of fax sort of end up being it's differentiator to email and it's biggest advantage. Not needing an email server is a big boon, not really being susceptible to phishing is a boon, and with modern fax over internet it's virtually indistinguishable in user experience from email.

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dotancohen 2 days ago | parent [-]

I remember fax phishing even before I had ever heard of email. From many large companies, simply paying a sub $100 invoice was standard procedure without even checking with the other internal bodies.

	▲	const_cast 2 days ago \| parent [-]
		This is true, but it's much less of a concern because: 1. You get way less faxes than emails. 2. Faxes can't steal credentials. 3. You should be auditing expenses anyway.

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sabas_ge 2 days ago | parent | prev [-]

If only a standard existed to do this... Hint: it exists since ages in Italy and it has been extended to Europe recently (See Registered Electronic Mail - RFC 6109 and ETSI EN 319 532 – 4)