What is Sender Policy Framework?

Sender Policy Framework is a DNS record listing which servers are permitted to send mail for a domain, so a receiving server can detect forged envelope senders. It is defined in RFC 7208.

Primary sources

Specifications cited by the tools below whose own titles define Sender Policy Framework.

RFC 7208 — Sender Policy FrameworkIETF

2 tools that work with Sender Policy Framework

Files never leave your browser.

Network Tools2

DNS LookupPull every DNS record for a domain at once, check SPF and DMARC, and compare four public resolvers.Email Header AnalyzerPaste raw email headers to map the delivery path, time every hop and read the SPF, DKIM and DMARC results the receiving server recorded.

Related terms

Terms that appear alongside Sender Policy Framework on the same tools.

DMARC
DNS
Email
Phishing

← All glossary terms Browse every tool →