3 ms·
It actually used to (maybe still does) signal routing information[1]. An example from the RFC is "@ONE,@TWO:JOE@THREE" [1]: https://tools.ietf.org/html/rfc821 h
by ediblenergy 10y ago
It actually used to (maybe still does) signal routing information[1]. An example from the RFC is "@ONE,@TWO:JOE@THREE"
[1]: https://tools.ietf.org/html/rfc821 https://tools.ietf.org/html/rfc821