smtp/tcp
Description
smtp or Simple Mail Tranfer Protocol is the
de facto email standard for the internet.
Protocol
Whole books have been written about the protocol.
The simplest level may take the form of
C: (connect)
S: 220 myhostname sendmail version date
C: HELO
S: 250 pleased to meet you.
C: MAIL FROM: triemer
S: 250 triemer ... Sender Ok
C: RCPT TO: whoever
S: 250 whoever ... Recipient ok.
C: DATA
S: 354 Enter mail, end with "." on a line by itself.
C: something
C: .
S: 250 Ok.
Notes
Implementation
There are many different versions of smtp daemons. The most well-known
is the sendmail daemon, available via anon ftp from ftp.cs.berkeley.edu
in the ucb/sendmail directory.
Mail readers are too numerous to count,
RFCs
RFC-821
RFC-822
Other Mail RFCS can be found by reading the
RFC-SETS
Reference Person
Jon Postel postel@isi.edu
Literature References
1. Costales, Bryan. Sendmail. (Sebastopol, CA: O'Reilly & Associates, Inc.)
ISBN 1-56592-056-2