SPF

File Format
Name	SPF
Ontology	Electronic File Formats E-Mail, newsgroups, and forums SPF

SPF (Sender Policy Framework) is format and protocol used to reduce email spam. It helps an email server determine whether an email it receives has a forged sender address.

Format

An SPF record is a short string of text that begins with "v=spf1". It is normally placed in a DNS "TXT" record.

Specifications

• RFC 4408
• http://www.openspf.org/Specifications

Links

• SPF Project Overview
• Wikipedia article