PowerDMARC’s Email Authentication Blog – Read the latest news and updates
How to Create and Publish a DMARC Record
BlogStay compliant with industry mandates by adding a DMARC record on your DNS. Our step-by-step guide makes it effortless to create and publish your DMARC record.
Google Calendar Spoofing: How Attackers Use It for Phishing Scams
BlogGoogle Calendar spoofing is the latest phishing tactic tricking users with fake invites. Learn how it works and how to protect yourself from these scams.
Zero Trust Network Access: Ending Implicit Trust in Cybersecurity
BlogZero Trust Network Access (ZTNA) revolutionizes cybersecurity by eliminating implicit trust, reducing breaches, and enhancing compliance.
PowerDMARC Ranks Among G2’s Top 100 Fastest-Growing Software Companies 2025
BlogPowerDMARC secures a spot in G2’s Top 100 Fastest-Growing Software Companies of 2025! Learn how our innovative email authentication solutions drive security, trust, and growth.
Email Salting Attacks: How Hidden Text Bypasses Security
BlogEmail salting attacks use hidden text to bypass spam filters and evade detection. Learn how they work and how to protect your inbox.
SPF flattening: What is it and why do you need it?
Blog, Email SecuritySPF flattening is a technique used to optimize and simplify Sender Policy Framework (SPF) records by reducing the number of DNS lookups.
DNS Amplification Attacks: Examples, Detection & Mitigation
BlogDiscover DNS amplification attacks, examples, detection methods, and mitigation strategies to protect your network from DDoS threats.
DMARC FO Tag Explained: DMARC Failure Reporting Options
BlogLearn 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.
What is an Invalid Domain Name and How to Fix it
BlogAn invalid domain name can disrupt your website or email. Learn the common reasons and practical solutions to get your domain back on track.
Fix “550 5.7.367 Sender Not Authorized for Relay” Error Message
BlogWhy the "sender not authorized for relay" error occurs and how to fix email relay issues. Understand email relay and how to configure it properly.
