RFC 7208

Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1, April 2014

Canonical URL:
https://www.rfc-editor.org/rfc/rfc7208.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Obsoletes:
RFC 4408
Updated by:
RFC 7372
Author:
S. Kitterman
Stream:
IETF
Source:
spfbis (app)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC7208

Discuss this RFC: Send questions or comments to spfbis@ietf.org

Other actions: Find Errata (if any)  |  Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

Email on the Internet can be forged in a number of ways. In particular, existing protocols place no restriction on what a sending host can use as the "MAIL FROM" of a message or the domain given on the SMTP HELO/EHLO commands. This document describes version 1 of the Sender Policy Framework (SPF) protocol, whereby ADministrative Management Domains (ADMDs) can explicitly authorize the hosts that are allowed to use their domain names, and a receiving host can check such authorization. This document obsoletes RFC 4408.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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