[Evolution-users] Local delivery account

[Pete Biggs]

On Fri, 2025-10-24 at 17:05 +0100, Patrick O'Callaghan wrote:
> On Fri, 2025-10-24 at 11:14 -0400, janos via evolution-users wrote:
> > OK, no problem, just my curiosity of the internal workings of mail
> > system. My understanding is that originally the mail system in UNUX
> > was
> > developed with the purpose of sending messages from one user to
> > another
> > in the same UNIX machine. Later on it was adopted to networked UNIX
> > machines using smtp protocol.
> 
> Not quite. Before SMTP there was UUCP (Unix-to-Unix CoPy), which  at
> least at first used direct modem connections between machines. That's
> why you'd sometimes have mail addresses given as "bang paths" (see
> https://en.wikipedia.org/wiki/UUCP#Bang_path).
> 
You'll be getting me all sentimental over Coloured Book Protocols and
their big-endian reverse domain name notation - and the '%' hack to
address these newfangled internet hosts in foreign lands.

P.