E-mail-1
Historically, the first network application, long before Internet
A long story with many protocols: NJE (Network Job Entry!), UUCP (Unix to Unix CoPy), X400, SMTP,… interconnected by gateways
Now the situation is clarified and SMTP (Simple Mail Transfer Protocol) is used
An application of e-mail: distribution lists:
- discussion forum (exchange: one to one)
- information (broadcast: one to many)