Header field: Content-Identifier

Message content identifier

Applicable protocol:

Mail (http://www.rfc-editor.org/rfc/rfc2822.txt)

Status:

obsolete

Author/Change controller:

IETF (mailto:iesg@ietf.org)
Internet Engineering Task Force.

Specification document(s):

http://www.rfc-editor.org/rfc/rfc1327.txt

Related information:

A text string which identifies the content of a message. Introduced by RFC 1327, and subsequently changed by RFC 2156 to avoid confusion with MIME defined fields. Gateways which reverse map may support the old field.