Common Internet Message Header Fields

Document Type Expired Internet-Draft (individual in gen area)
Author Jacob Palme 
Last updated 2015-10-14 (latest revision 2002-09-06)
Stream Internet Engineering Task Force (IETF)
Expired & archived
pdf htmlized bibtex
Additional Resources
Stream WG state (None)
Document shepherd No shepherd assigned
IESG IESG state Expired (IESG: Dead)
Consensus Boilerplate Unknown
Telechat date
Responsible AD Ted Hardie
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo contains tables of commonly occurring header fields in headings of e-mail messages. The document compiles information from other RFCs such as RFC 822, RFC 1036, RFC 1123, RFC 2156, RFC 1496, RFC 1766, RFC 2183, RFC 1864, RFC 2421 and RFC 2045. A few commonly occurring header fields which are not defined in RFCs are also included. For each header field, the memo gives a short description and a reference to the RFC in which the header field is defined. The latest, revised version of this document can be found at URL The version at that URL may be more recent than the version published as an RFC. Another list of headers can be found at URL [28]


Jacob Palme (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)