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RFC 7208
Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1,April 2014
- File formats:
- Status:
- PROPOSED STANDARD
- Obsoletes:
- RFC 4408
- Updated by:
- RFC 7372,RFC 8553,RFC 8616
- Author:
- S. Kitterman
- Stream:
- IETF
- Source:
- spfbis (app)
Cite this RFC:TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC7208
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Abstract
Email on the Internet can be forged in a number of ways. Inparticular, existing protocols place no restriction on what a sendinghost can use as the "MAIL FROM" of a message or the domain given onthe SMTP HELO/EHLO commands. This document describes version 1 ofthe Sender Policy Framework (SPF) protocol, whereby ADministrativeManagement Domains (ADMDs) can explicitly authorize the hosts thatare allowed to use their domain names, and a receiving host can checksuch authorization.
This document obsoletes RFC 4408.
For the definition ofStatus,seeRFC 2026.
For the definition ofStream, seeRFC 8729.