The set of ITU-T communications standards
covering electronic mail services provided by data networks.
X.400 was widely used in Europe and Canada.
X.400 addresses tend to be much longer than RFC 822
They consist of a set of bindings for country (c),
(a), primary management domain
surname (s), given name (g).
For example, the X.400 address,
might be equivalent to RFC 822
Last updated: 2003-06-24
X.28 ♦ X.29 ♦ X.3 ♦ X3J16 ♦ X3T10 ♦ X.400 ♦ X.409 ♦ X.500 ♦ X.680 ♦ X.75 ♦ x86 ♦ x86 processor socket
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