Category: Email Security
Protecting email infrastructure and inboxes — SPF, DKIM, DMARC, phishing defense, and the practical side of stopping email-based threats.
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The Emails That Never Arrived
A client could send email but never received any. Their email DNS records had been left half-finished by their provider, and nobody noticed for weeks. Read more
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What Is MFA and Why Your ‘Strong Password’ Isn’t Enough Anymore
A strong password used to be enough. It isn’t anymore. Here’s what Multi-Factor Authentication is, why it matters for your business, and how to actually set it up without losing your mind. Read more
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A Five-Minute Phone Call Stopped a Six-Figure Wire Fraud
A real Business Email Compromise nearly cost a firm six figures. One phone call stopped it. Here is exactly how the scam works and the simple habit that beats it. Read more
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I Read 6 Months of My Own DMARC Reports. Here’s What They Were Actually Telling Me.
Every day, my inbox fills up with attachments named like google.com!iamgeek.com!1778025600!1778111999.zip. These are DMARC aggregate reports — the email-authentication world’s version of a daily attendance roster. Mailbox providers like Google, Microsoft, Yahoo, Comcast, and Fastmail send them to tell you who’s been sending email “as your domain” and whether those messages passed the cryptographic checks… Read more