www.exim-new-users.co.uk - E-mail standards

E-mail standards

The easiest way to view current e-mail standards is to read the RFC documents (Request For Comments) for each aspect of e-mail usage.

The RFCs are always available at:
http://www.ietf.org/rfc.html

They can also be accessed directly by using the following address:
http://www.ietf.org/rfc/rfcNNNN.txt
(Where NNNN is the RFC number prefixed with zeros as necessary to make a four digit number)
The key RFC's are:

RFC 2821   SMTP - Simple Mail Transfer Protocol
RFC 2822   Internet Message Format
RFC 1939   POP3 - Post Office Protocol version3
RFC 3501   IMAP - Internet Message Access Protocol