Greylisting, Rate Limiting, and False Positives Explained Email Security Systems are designed to block spam, phishing, and malicious traffic. However, sometimes these protections can also delay or block legitimate emails. Three commonly misunderstood mechanisms behind this are greylisting, rate limiting, and false positives. Understanding how these work helps organizations balance security and email deliverability without
DMARC, SPF, and DKIM Explained for Non-Experts Email security discussions often include technical terms like SPF, DKIM, and DMARC. While these controls are essential for protecting businesses from spoofing and phishing, they can be confusing for non-technical users. This guide explains what SPF, DKIM, and DMARC are, why they matter, and how they work together—without
From p=none to p=reject: A Safe DMARC Deployment Guide Email remains one of the most exploited attack vectors for phishing, spoofing, and brand impersonation. While technologies like SPF and DKIM help authenticate email, DMARC is what brings them together into a clear policy framework. However, moving DMARC straight to enforcement without preparation can break legitimate
Common DMARC Misconfigurations That Break Email Delivery DMARC is one of the most powerful controls in email security—but it is also one of the easiest to misconfigure. Many organizations enable DMARC to stop spoofing and phishing, only to discover later that legitimate emails are being rejected, quarantined, or silently dropped. In most cases, the issue
How Attackers Bypass SPF, DKIM, and DMARC SPF, DKIM, and DMARC are foundational controls in modern email security. When properly configured, they prevent domain spoofing and significantly reduce phishing risk. Yet phishing and fraud emails still reach inboxes every day—even when these checks pass. This leads to a common question: How are attackers
Why “SPF Pass” Does NOT Mean an Email Is Legit One of the most common misunderstandings in email Security is the belief that an email is safe simply because it shows “SPF: Pass” in the headers or security logs. In reality, SPF passing only confirms where an email was sent from—not whether it should be
Top Email Threats Businesses Are Ignoring Right Now Despite heavy investment in email Security Tools, many organizations continue to experience email-related security incidents. The reason is simple: attackers have evolved, while many defenses and assumptions have not. Today’s most dangerous email threats are often quiet, trusted, and human-focused—not noisy malware campaigns. Below are the top
Difference Between Phishing, Spear-Phishing, and Whaling Email-based attacks continue to be the most common entry point for cyber incidents. While many people use the term phishing generically, not all phishing attacks are the same. Understanding the difference between phishing, spear-phishing, and whaling is critical for businesses aiming to reduce risk and respond effectively. This
How Compliance Standards Like GDPR and HIPAA Impact Email Security In today’s digital landscape, businesses exchange massive amounts of sensitive information through email every day — from customer data and financial records to healthcare details and corporate secrets. With data breaches and phishing attacks on the rise, email security has become more critical than ever.
Comparing Email Security Gateways: What to Look for Before You Buy In today’s world of ever-evolving cyber threats, email remains the primary attack vector for phishing, ransomware, and business email compromise (BEC) attacks. While awareness and training are crucial, organizations also need robust technology to filter and protect against these risks — and that’s where