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SPF flattening: What is it and why do you need it?

Blog, Email Security
SPF flattening is a technique used to optimize and simplify Sender Policy Framework (SPF) records by reducing the number of DNS lookups.
February 26, 2025

DNS Amplification Attacks: Examples, Detection & Mitigation

Blog
Discover DNS amplification attacks, examples, detection methods, and mitigation strategies to protect your network from DDoS threats.
February 25, 2025

DMARC FO Tag Explained: DMARC Failure Reporting Options

Blog
Learn how the DMARC FO tag enhances email security by helping you receive failure reports. Understand its settings and how to use it for effective email authentication.
February 21, 2025

What is an Invalid Domain Name and How to Fix it

Blog
An invalid domain name can disrupt your website or email. Learn the common reasons and practical solutions to get your domain back on track.
February 21, 2025

Fix “550 5.7.367 Sender Not Authorized for Relay” Error Message

Blog
Why the "sender not authorized for relay" error occurs and how to fix email relay issues. Understand email relay and how to configure it properly.
February 21, 2025

Types of DNS Attacks: How They Work & How to Stay Protected

Blog
DNS attacks can lead to data breaches, phishing, and service disruptions. Learn about common types of DNS attacks and how to protect your domain from cyber threats.
February 20, 2025
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