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| The [[BSD]] project developed `sendmail(1)`, the first [[Email/MailTransferAgent|MTA]] implementing an SMTP standard. | The [[BSD]] project developed `sendmail(1)`, the first [[Email/MTA|message transfer agent]] implementing an SMTP standard. |
Simple Mail Transfer Protocol
Simple Mail Transfer Protocol (SMTP) is a communication protocol for sending and forwarding emails.
Contents
History
Mainframes and multi-user computers had utilites for inter-user communication (such as wall(1)).
ARPANET enabled the exchange of messages between hosts, especially as through FTP.
The BSD project developed sendmail(1), the first message transfer agent implementing an SMTP standard.