From Security Infrastructure fo Electronic Commerce and Internet CPS714 Computational Science Information Track -- June 2 and June 7 99. byRoman Markowski
Requirements
privacy, authentication, integrity, availability, virus checking, support for non-text messages, non-repudiation (proof of sending and receiving)
Standards
SMTP - Simple Mail Transfer Protocol; POP3 - Post Office Protocol 3
IMAP4 - Internet Message Access Protocol 4
MIME, S/MIME - Secure/ Multipurpose Internet Mail Extension
PGP - Pretty Good Privacy; SSL - Secure Socket Layer