---
title: "What is an Email authentication?"
canonical: https://www.beehiiv.com/newsletter-glossary/email-authentication
description: "Email authentication is a set of techniques and protocols used to verify the legitimacy of an email sender's identity. It helps prevent email fraud, phishing attacks, and spam by verifying that an email message truly comes from the claimed sender and hasn't been altered during transit. beehiiv adheres to SPF, DKIM, and DMARC email authentication protocols."
source: live-converter
generated: 2026-05-18T22:42:05.930Z
---

# What is an Email authentication?

-   [Newsletter Glossary](/newsletter-glossary)
-   Email authentication

# Email authentication

Email authentication is a set of techniques and protocols used to verify the legitimacy of an email sender's identity. It helps prevent email fraud, phishing attacks, and spam by verifying that an email message truly comes from the claimed sender and hasn't been altered during transit. beehiiv adheres to SPF, DKIM, and DMARC email authentication protocols. 

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