Category: Email Security
Protecting email infrastructure and inboxes — SPF, DKIM, DMARC, phishing defense, and the practical side of stopping email-based threats.
-
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