Why courts and law firms still run on fax
Fax survives in legal work for two reasons that email never solved. First, a fax produces a transmission record generated by the carrier rather than by either party, which is harder to dispute than a sent-items folder. Second, many court clerks and agencies have filing rules written decades ago that name fax explicitly and have never been amended.
The practical consequence is that a solo practitioner, a pro se litigant, or anyone dealing with a government agency will eventually be told to fax something — usually with a deadline attached and usually without owning a fax machine.