---
title: "What is an SPF?"
canonical: https://www.beehiiv.com/newsletter-glossary/spf
description: "SPF, or sender policy framework, is an email authentication protocol that creates the ability to specify which servers are allowed to send email on behalf of your domain."
source: live-converter
generated: 2026-05-17T02:57:52.202Z
---

# What is an SPF?

-   [Newsletter Glossary](/newsletter-glossary)
-   SPF

# SPF

SPF, or sender policy framework, is an email authentication protocol that creates the ability to specify which servers are allowed to send email on behalf of your domain. 

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