Microsoft DMARC, SPF, & DKIM requirements have been released.

Click here to learn what’s needed

The Skysnag Blog

Microsoft introduces new email sender requirements for Outlook. Ensure SPF, DKIM, and DMARC compliance by May 2025 to maintain deliverability and protect against spoofing and phishing threats.
April 3, 2025

Microsoft’s New Email Sender Requirements: What You Need to Know

Effective May 5, 2025, Microsoft Outlook will begin enforcing enhanced email authentication requirements for high-volume senders. Organizations must implement SPF, DKIM, and DMARC to ensure compliance, maintain email deliverability, and protect against phishing and spoofing. This article outlines the key changes, timelines, and how Skysnag can support a seamless transition.

Explore insights

UAE successfully blocks over 600 cyberattacks aimed at critical public and private sectors. Learn how national cybersecurity strategies are protecting vital infrastructure and sensitive data from evolving digital threats.
March 24, 2025

UAE blocks over 600 cyberattacks targeting critical sectors

Discover how to comply with the PCI DSS v4.0 2025 anti-phishing mandate using Skysnag. Learn key email security strategies, DMARC enforcement, and phishing protection best practices to safeguard payment data
March 11, 2025

PCI DSS v4.0.1 Countdown: How to Meet the 2025 Anti-Phishing Mandate with Skysnag

March 6, 2025

Upcoming NCSC Mail Check Changes and the Best Alternative

December 11, 2024

Deliverability vs. Security: Why Both Matter in Email Success

November 28, 2024

Stay Secure This Cyber Week: The Rise of Phishing Attacks

October 28, 2024

Google Expands BIMI Support Globally: Why This Matters for Your Brand

October 20, 2024

15 Myths Debunked: Google & Yahoo Email Sender Requirements

"Discover the differences between spear-phishing and whaling attacks, and learn how DMARC combined with Skysnag can safeguard your organization from email fraud by enhancing domain security and email authentication."
September 13, 2024

Whaling vs. Spear Phishing Explained

"Learn about the FBI's latest alert regarding North Korean phishing attacks aimed at businesses and government agencies. Understand the tactics used and how to strengthen cybersecurity measures against these growing threats."
September 4, 2024

FBI Alert: North Korea Attacks Cryptocurrency

"Ensure PCI DSS v4.0 compliance with Skysnag, the best DMARC solution of 2024, offering real-time email authentication to protect your organization from email threats and enhance security."
September 4, 2024

DMARC Mandate for PCI DSS v4.0 Compliance

"Optimize email security in 2024 with Skysnag’s advanced email verification and authentication features. Learn why Skysnag is the best DMARC solution to safeguard your email communication against fraud."
September 4, 2024

Why Real-Time Email Verification Matters

"Protect your domain and avoid email blacklists in 2024 with Skysnag, the best DMARC enforcement solution. Discover how Skysnag’s domain guard features ensure secure email delivery and reputation management."
September 4, 2024

5 Proven Strategies to Avoid Email Blacklists